Fb1200 instruction manual

Emerson FB1200 Flow Computer Instruction Manual
D301782X012
August 2020
Remote Automation Solutions
Emerson FB1200 Flow Computer
Instruction Manual

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ii
Device Safety Considerations
 Reading these Instructions
Before operating the device, read these instructions carefully and understand their safety implications. In some
situations, improperly using this device may result in damage or injury. Keep this manual in a convenient location
for future reference. Note that these instructions may not cover all details or variations in equipment or cover every
possible situation regarding installation, operation, or maintenance. Should problems arise that are not covered
sufficiently in the text, immediately contact Customer Support for further information.
 Protecting Operating Processes
A failure of this device — for whatever reason -- may leave an operating process without appropriate protection and
could result in possible damage to property or injury to persons. To protect against this, you should review the
need for additional backup equipment or provide alternate means of protection (such as alarm devices, output
limiting, fail-safe valves, relief valves, emergency shutoffs, emergency switches, etc.). Contact Remote
Automation Solutions for additional information.
 Returning Equipment
If you need to return any equipment to Remote Automation Solutions, it is your responsibility to ensure that the
equipment has been cleaned to safe levels, as defined and/or determined by applicable federal, state and/or local
law regulations or codes. You also agree to indemnify Remote Automation Solutions and hold Remote Automation
Solutions harmless from any liability or damage which Remote Automation Solutions may incur or suffer due to
your failure to ensure device cleanliness.
 Grounding Equipment
Ground metal enclosures and exposed metal parts of electrical instruments in accordance with OSHA rules and
regulations as specified in Design Safety Standards for Electrical Systems, 29 CFR, Part 1910, Subpart S, dated: April
16, 1981 (OSHA rulings are in agreement with the National Electrical Code). You must also ground mechanical or
pneumatic instruments that include electrically operated devices such as lights, switches, relays, alarms, or chart
drives.
Important: Complying with the codes and regulations of authorities having jurisdiction is essential to ensuring
personnel safety. The guidelines and recommendations in this manual are intended to meet or exceed applicable
codes and regulations. If differences occur between this manual and the codes and regulations of authorities
having jurisdiction, those codes and regulations must take precedence.
 Protecting from Electrostatic Discharge (ESD)
This device contains sensitive electronic components which be damaged by exposure to an ESD voltage.
Depending on the magnitude and duration of the ESD, it can result in erratic operation or complete failure of the
equipment. Ensure that you correctly care for and handle ESD-sensitive components.
System Training
A well-trained workforce is critical to the success of your operation. Knowing how to correctly install, configure,
program, calibrate, and trouble-shoot your Emerson equipment provides your engineers and technicians with the skills
and confidence to optimize your investment. Remote Automation Solutions offers a variety of ways for your personnel
to acquire essential system expertise. Our full-time professional instructors can conduct classroom training at several of
our corporate offices, at your site, or even at your regional Emerson office. You can also receive the same quality
training via our live, interactive Emerson Virtual Classroom and save on travel costs. For our complete schedule and
further information, contact the Remote Automation Solutions Training Department at 800-338-8158 or email us at
education@emerson.com.

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Contents iii
Contents
Section 1: Introduction 1
1.1 Safety Labels ........................................................................................................................ 3
1.2 Features............................................................................................................................... 3
1.3 FB1200 Flow Computer Models............................................................................................ 4
1.3.1 FB1200 Flow Computer (with Multi-variable or Static Pressure Sensor)..................... 4
1.3.2 FB1200 Flow Computer (without Integral Sensor) .................................................... 5
1.4 Central Processing Unit (CPU)............................................................................................... 5
1.4.1 Memory ................................................................................................................... 5
1.5 Explosion-proof Enclosure .................................................................................................... 5
1.5.1 Physical Security....................................................................................................... 6
1.6 I/O........................................................................................................................................ 7
1.7 Power Options...................................................................................................................... 7
1.8 Communications.................................................................................................................. 8
1.9 Human-Machine Interface (HMI) Module.............................................................................. 8
1.10 FBxWifi™ Communications ........................................................................................ 9
1.11 Software Tools ......................................................................................................... 10
1.12 RoHS2 Compliance .................................................................................................. 10
Section 2: Installation 11
2.1 Hazardous Locations .......................................................................................................... 11
2.2 Environmental Specifications ............................................................................................. 11
2.3 Required Tools ................................................................................................................... 12
2.4 Site Considerations ............................................................................................................ 12
2.5 General Wiring Guidelines.................................................................................................. 15
2.6 Front or Rear End Caps ....................................................................................................... 15
2.6.1 Removing/Replacing Retaining Clamp on End Caps................................................ 16
2.6.2 Removing the Front or Rear End Caps..................................................................... 17
2.6.3 Replacing the Front or Rear End Caps...................................................................... 18
2.7 Mounting the Enclosure ..................................................................................................... 18
2.7.1 Bolting Considerations ........................................................................................... 18
2.7.2 O-rings with Flange Adapters.................................................................................. 20
2.7.3 Direct Mount.......................................................................................................... 21
2.7.4 Indirect Mount ....................................................................................................... 21
2.7.5 Rotating the Housing ............................................................................................. 24
2.8 Grounding the Device ........................................................................................................ 26
2.9 Terminal Plate .................................................................................................................... 26
2.10 Power Modes ........................................................................................................... 28
2.10.1 Low Power Mode.................................................................................................. 28
2.10.2 Standard Power Mode .......................................................................................... 30
2.10.3 Notes on Battery Life ............................................................................................ 31
2.11 Connecting Power.................................................................................................... 31
2.11.1 Connecting DC Power .......................................................................................... 32
2.11.2 Connecting Battery Power.................................................................................... 33
2.12 Installing the Optional Solar Panel............................................................................ 34
2.12.1 Attaching Mounting Hardware to the Solar Panel ................................................. 34
2.12.2 Mounting the Solar Panel (Integral Mount)........................................................... 36
2.12.3 Mounting the Solar Panel (Remote Mount)........................................................... 38

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2.12.4 Connecting Solar Power ....................................................................................... 39
2.12.5 Adjusting the Optional Solar Panel Tilt Angle ........................................................ 40
2.13 Connecting Communication Ports ........................................................................... 41
2.13.1 Connecting to COM1............................................................................................ 41
2.13.2 Connecting to COM2 and COM3 .......................................................................... 44
2.13.3 Ethernet Port........................................................................................................ 48
Section 3: I/O Configuration and Wiring 51
3.1 Analog Inputs..................................................................................................................... 55
3.1.1 AI Wiring ................................................................................................................ 55
3.2 Analog Outputs.................................................................................................................. 59
3.2.1 AO Wiring .............................................................................................................. 59
3.3 Digital Inputs...................................................................................................................... 61
3.3.1 DI Wiring................................................................................................................ 62
3.4 Digital Outputs................................................................................................................... 64
3.4.1 DO Wiring .............................................................................................................. 65
3.5 Pulse Inputs........................................................................................................................ 67
3.5.1 PI Wiring ................................................................................................................ 67
3.6 Connecting the RTD ........................................................................................................... 69
3.7 Connecting a Rosemount 4088B Transmitter for Use in a Second Meter Run ...................... 72
Section 4: Operation 75
4.1 Powering Up/Powering Down the Device ........................................................................... 75
4.2 Establishing Communications ............................................................................................ 75
4.2.1 Communicating with the SCADA Host.................................................................... 75
4.2.2 Communicating with a Laptop Using One of the Serial Ports................................... 76
4.2.3 Communicating with a Laptop Using Ethernet........................................................ 76
4.2.4 Communicating with a Laptop Wirelessly with FBxWifi ........................................... 77
4.3 Communicating using the HMI Module .............................................................................. 78
Section 5. Service and Troubleshooting 81
5.1. Returning the Unit for Repairs ............................................................................................ 82
5.2. Interpreting the Status LEDs............................................................................................... 83
5.3. Switch and Buttons ............................................................................................................ 85
5.4. Removing/Replacing the HMI Module ................................................................................ 85
5.5. Replacing the Main Battery Pack......................................................................................... 86
5.6. Removing/Replacing the SRAM Battery .............................................................................. 88
5.7. Upgrading System Firmware .............................................................................................. 90
Appendix A: Special Instructions for Class I Division 2 Locations 91
Appendix B: Special Instructions for Class I Division 1 Locations 95
Appendix C: ATEX Non-Sparking Zone 2 Certifications 99
Appendix D: ATEX Flame-Proof Zone 1 Certifications 101
Index 103

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Introduction 1
Section 1: Introduction
This section covers the following topics:
 Safety Labels
 Features
 FB1200 Flow Computer Models
 Central Processing Unit (CPU)
 Explosion-proof Enclosure
 I/O
 Power Options
 Communications
 Human-Machine Interface (HMI) Module
 FBxWifi™ Communications
 Software Tools
 RoHS2 Compliance
The Emerson FB1200 Flow Computer supports measurement for one or two meter runs. This
manual describes how to install and configure the Emerson FB1200 Flow Computer hardware.
For information on using the FBxConnect™
configuration software, see the online help that
accompanies FBxConnect.

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2 Introduction
Figure 1-1: FB1200 Flow Computer
1 HMI module
2 Front end cap (cover)
3 Data plate
4 Rear end cap (cover)
5 Conduit fittings
6 Enclosure
7 Sensor module

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Introduction 3
1.1 Safety Labels
This product may display safety label(s) to identify potential hazards. The same types of notices
appear within the documentation. Whenever you see an exclamation point (!) enclosed within a
triangle (showntotheleft),consult the documentation for additional safety information about the
hazard and how to avoid it. The labels used are :
DANGER
MAY CAUSE DEATH
Observe all precautionary signs posted on the equipment.
Failure to do so may result in death or serious injury to personnel.
WARNING
DANGER TO PERSONNEL AND EQUIPMENT
Observed all precautionary signs posted on the equipment.
Failure to do so may result in injury to personnel or cause damage to the equipment.
CAUTION
MAY CAUSE INJURY TO PERSONNEL OR DAMAGE EQUIPMENT
Observe all precautionary signs posted on the equipment.
Failure to do so may result in injury to personnel or cause damage to the equipment.
SAFETY FIRST
General instructions and safety reminders.
1.2 Features
The FB1200 Flow Computer includes the following key features:
 Enclosure suitable for use in Class I Division 1 explosion proof and Ex db Zone 1 flameproof
environments
 Enclosure suitable for use in Class I Division 2 non-incendive and Ex nA Zone 2 non- sparking
environments
 Integral multi-variable sensor for measurement of Pressure (P) and Differential Pressure (DP)
 Connections for customer-supplied resistance temperature detector (RTD) for measurement
of temperature (T)
 Support for a second meter run through communication with a separate external transmitter
 Base I/O consists of two on-board channels you can individually configure as either digital
input (DI), digital output (DO) or pulse input (PI) and two on-board I/O channels you can

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4 Introduction
individually configure as either analog input (AI) or analog output (AO). Optional 6-channel
expansion I/O board available
 Power from a DC power supply, or an optional lead acid battery/solar panel combination
 Serial communication options for RS-232, RS-485 (2-wire), and RS-485/422 (4-wire).
 Ethernet
 HMI module with optional display and back light for local operator interaction
 Optional Wi-Fi®
transceiver (802.11 b/g) for field technician to access the flow computer
from a laptop without physical cable connection.
 Application software supports AGA3, AGA8, ISO 5167, ISO 6976, and API 21.1 calculations in
U.S., metric, or other natural gas standard units.
 Application software optionally supports API Chapter 11.1, API Chapter 12.2, API 20.1, and
API 21.2 calculations in U.S., metric, or other hydrocarbon liquid standard units.
1.3 FB1200 Flow Computer Models
You can purchase the FB1200 Flow Computer with or without integrated sensors.
1.3.1 FB1200 Flow Computer (with Multi-variable or Static Pressure
Sensor)
The flow computer with sensors has either a multi-variable sensor module or a static pressure
sensor:
Figure 1-2: FB1200 Flow Computer — Multivariable (Left); Static Pressure (Right)

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Introduction 5
1.3.2 FB1200 Flow Computer (without Integral Sensor)
The no integral sensor version includes no sensor module. In this case the process variable data
used in flow computer calculations comes from external devices and enters the device through the
serial ports or I/O channels.
Figure 1-3: FB1200 Flow Computer (No Integral Sensor Version)
1.4 Central Processing Unit (CPU)
The flow computer’s CPU is a NXP®
Kinetis®
K61 series CPU with an ARM®
Cortex®
M4 processor
that operates at 4 MHz to 60 MHz depending on the power mode. The CPU runs the Micrium
operating system.
1.4.1 Memory
The flow computer includes both static and flash memory.
Table 1-1: Memory
Memory Usage
8 MB SRAM Holds in-use configuration, current state of all variables
128 MB Flash
Holds firmware image, historical logs, configuration backup (if saved to flash),
and the executing program
1.5 Explosion-proof Enclosure
The FB1200 Flow Computer includes an explosion-proof enclosure made of either aluminum or
stainless steel. The enclosure consists of the main housing, two threaded covers, and four conduit
entry points.

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6 Introduction
The four conduit entry points are ¾ in NPT pipe threaded holes that permit entry of field conduit
for I/O and communication wiring. ATEX installations use a ¾ in NPT to M20 thread reducer.
Unused apertures shall be closed with suitable blanking elements.
The FB1200 Flow Computer can operate in an unprotected outdoor environment. Wiring for I/O,
communications, and power enters the enclosure through the four conduit fittings with
appropriate protective seals and connects to the terminal plate.
The front end cap (cover) provides a viewing window for the HMI module. You can access the
terminal plate by removing the rear end cap (cover).
The FB1200 Flow Computer has North American certification for Class I Division 1 Groups C and D
(explosion proof) and Class I Division 2 Groups A, B, C and D (non-incendive) hazardous locations or
non-hazardous locations. See Appendix A and Appendix B for more information.
The FB1200 Flow Computer has European certification for EExd Zone 1 (flame proof) and EExd
Zone 2 (non-sparking) hazardous locations or non-hazardous locations. See Appendix C and
Appendix D for more information.
Details on certification information are included on the data plate screwed to the top of the
enclosure.
1.5.1 Physical Security
The flow computer end caps include retaining clamps for ATEX/IEC applications. In addition, if local
regulations require it, you can wire a tamper-resistant seal using the tie holes located in the front
and rear end caps, and in the coupling screws.
Figure 1-4: Retaining Clamps and Tie Holes for Tamper-resistant Seals
1 Retaining clamp (For ATEX & IEC approved products only)
2 Tie holes in end caps
3 Tie holes in coupling screws

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Introduction 7
1.6 I/O
The flow computer comes with base I/O from both the CPU and the built-in multi-variable (MV)
sensor. Base I/O consists of:
 Pressure (P) input from the MV sensor, differential pressure (DP) input from the MV sensor,
connections for temperature (T) input from a customer-supplied RTD or a single static
pressure sensor.
 Two on-board I/O channels that you can individually configure as digital input (DI), digital
output (DO), or pulse input (PI)
 Two on-board I/O channels that you can individually configure as either analog input (AI) or
analog output (AO)
An optional 6-channel expansion I/O board includes:
 Four I/O channels that you can individually configure as digital inputs (DI), digital outputs
(DO), or pulse inputs (PI)
 Two I/O channels that you can individually configure as either analog inputs (AI), or analog
outputs (AO)
Table 1-2: FB1200 Flow Computer I/O Configurations
FB1200 Flow Computer
without optional I/O
FB1200 Flow Computer
with optional I/O
MV (P, DP, T) or Static Pressure Sensor MV (P, DP, T) or Static Pressure Sensor
2 DI/DO/PI channels 6 DI/DO/PI channels (4 of these reside on the 6-channel
expansion I/O board)
2 AI/AO channels 4 AI/AO channels (these reside on the 6-channel
expansion I/O board)
1.7 Power Options
You can power the flow computer using an external DC input, an internal battery, or an internal
rechargeable battery connected to a solar panel.
Important
Use only batteries supplied with the flow computer or sold by Emerson Remote Automation
Solutions as spare parts for this flow computer. If you substitute a battery you obtain elsewhere you
void your certification unless it is the identical part from the same manufacturer as that supplied
with the flow computer from Emerson.

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Table 1-3: Power Options
Option Usage
External DC Power
Supply
5.7 Vdc to 30 Vdc external supply (Max power at 10 watts)
Lead Acid Battery Pack  6.0 Vdc
 4.5Ah
 Not suitable with ATEX or IECEx applications
 Can be optionally charged by a 6-watt solar panel
1.8 Communications
The flow computer includes three serial communication ports and one Ethernet port. The serial
ports allow communication using DNP3, Modbus, BSAP, and ROC protocols. The Ethernet port is an
RJ-45 connector. The Ethernet port supports a maximum of six concurrent TCP connections
(sockets).
Table 1-4: Serial Ports
Port Type Use
COM1  Serial communications
 Software-selectable for RS-232, RS-
485 (2-wire), RS-485/422 (4-wire)
operation
 4-wire
RS-232, RS-485 (2-wire), RS-485/422 (4-wire)
communication to host or other devices. 4-wire
used with external radio.
 Software-selectable for RS-232, or
RS-485 (2-wire) operation
 2-wire
RS-232 or RS-485 (2-wire) communication to
host or other devices.
 Software-selectable for RS-232, or
RS-485 (2-wire) operation
 2-wire
RS-232 or RS-485 (2-wire) communication to
host or other devices.
1.9 Human-Machine Interface (HMI) Module
The flow computer includes an HMI module with an optional liquid crystal display (LCD) for local
operator access to the device. The LCD, if present, shows a series of menus that sequentially display
the current values of particular process variables. A configuration parameter in FBxConnect
determines whether you must log in first to view the menus. If required, you log in by selecting
alphanumeric characters by scrolling through a list until you select the correct character.
The HMI module includes four LEDs to provide status information. Units with the display include
four infrared (IR) buttons for operator interaction.

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Introduction 9
To conserve power, the HMI module enters sleep mode after a period of inactivity. Sleep mode
disables FBxWifi communication. In FBxConnect, you can configure the number of minutes of
inactivity triggering sleep mode through the LCD Sleep Time parameter. Setting this parameter to
0 disables sleep mode which keeps the HMI module on but uses significantly more power.
Figure 1-5: HMI Module with LCD
Figure 1-6: HMI Module without LCD
Note
If your flow computer does not include the LCD option, you still have the status LEDs and a single IR
button for waking up the device (shown in Figure 1-6).
1.10 FBxWifi™ Communications
The flow computer has an optional Wi-Fi®
transceiver (FBxWifi) that enables you to connect via a
laptop or tablet from some small distance away.
This capability allows an operator to potentially remain outside the hazardous location and still
communicate with the flow computer. The operator's laptop must have Wi-Fi capability, line-of-
sight access to the HMI module, and must be loaded with FBxConnect configuration software.
Once connected, the operator can view process values, edit configuration parameters, and collect
logs.

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10 Introduction
Note
The FBxWifi electronics reside inside the HMI module. The HMI module must be awake to use
FBxWifi communications You can wake it up manually by holding a finger against the front cover
glass over the Hold to Wake button (the left-most button) for typically from five to ten seconds.
1.11 Software Tools
The FBxConnect configuration software provides a series of wizards that allow you to perform
configuration activities for the flow computer. You connect a PC running the FBxConnect
configuration software to the flow computer using one of the communication ports or through a
wireless connection. You can then:
 Set parameters within your application
 Configure I/O channels
 Specify the serial communication method for a port (RS-232 to RS-485) as needed
 View or collect audit trail information such as alarm, event, or historical logs
 Update system firmware
1.12 RoHS2 Compliance
Device without Integral MVS or SP Sensor:
RoHS (2) EU Directive 2011/65/EU
Device with Integral MVS or SP Sensor:
RoHS (2) EU Directive 2011/65/EU: This product may be considered out-of-scope when used for
the intended design purpose in a Large Scale Fixed Installation (LSFI).
Consult https://www.emerson.com/compliance for up-to-date product information.

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Installation 11
Section 2: Installation
 Hazardous Locations
 Environmental Specifications
 Required Tools
 Site Considerations
 General Wiring Guidelines
 Front or Rear End caps
 Mounting the Enclosure
 Grounding the Device
 Terminal Plate
 Power Modes
 Connecting Power
 Installing the Optional Solar Panel
 Connecting Communication Ports
The flow computer ships from the factory fully assembled, except for the optional solar panel
assembly.
2.1 Hazardous Locations
The housing for the FB1200 Flow Computer is an explosion-proof case designed to operate in
hazardous locations.
For North America the FB1200 Flow Computer has certifications for Class I, Division 1 (Groups C &
D) explosion-proof, Class I Division 2 (Groups A, B, C & D) non-incendive, and non-hazardous
locations only. Appendix A contains special information for Class I Division 2 installations; Appendix B
contains special information for Class I Division 1 installations.
For Europe the FB1200 Flow Computer has certifications for Ex db Zone 1 flame-proof and for Ex nA
Zone 2 non-sparking installations and non-hazardous locations only. Appendix C contains special
information for Ex nA Zone 2 installations; Appendix D contains special information for Ex db Zone 1
installations.
All certifications are listed on the data plate located on the top of the device.
2.2 Environmental Specifications
This section summarizes the environmental specifications for the device. For full details, refer to
the product data sheet FB1200 Flow Computer (D301790X012).

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Table 2-1: Environmental Specifications
Specification Range
Ambient Temperature -40°C to +80 °C (-40 °F to +176 °F) - no battery, C1D1/C1D2
-40°C to +80 °C (-40°F to +176 °F) — lead acid battery, C1D1/C1D2
-40°C to +80 °C (-40 °F to +176 °F) — no battery, ATEX/IEC Ex db
-40°C to +80 °C (-40 °F to +176 °F) — no battery, ATEX/IEC Ex nA
Maximum Process
Connection Temperature
120 °C (248 °F)
Humidity 5% to 95% non-condensing
Vibration 2g over 10 to 150 Hz; 1g over 150 to 200 Hz
2.3 Required Tools
Certain tools and equipment are required for installing and servicing the flow computer.
Table 2-2: Required Tools
Tool Use
Torque wrench For bolting/mounting the flow computer
2.5 mm hexagonal wrench For manipulating rotation set screw
3 mm hexagonal wrench For screw for M4 x 0.7 end cap retaining clamp
(ATEX required)
9/16 in hexagonal wrench For installing/removing ¾ in NPT conduit plugs
1 1/16 in combination wrench For installing/removing ¾ in NPT to M20 thread
reducer (ATEX required)
#1 Phillips-head screwdriver For screws on HMI module
#2 Phillips-head screwdriver For screws on other modules and boards
1/8 inch flat-head screwdriver For 5.08 mm pitch terminal block connections
3/32-inch flat head screwdriver For 3.81 mm pitch terminal block connections
Laptop PC running Field Tools with FBxConnect
configuration software
For software configuration
2.4 Site Considerations
The flow computer must reside in an accessible location for configuration and service. Refer to the
dimensional drawings for information on the space required.
 Ensure the installation location provides easy access to the HMI module.

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Installation 13
 If your unit includes the optional solar panel, ensure the installation location provides
sufficient space to mount the solar panel and adequate sunlight to charge the battery.
 If your unit includes the optional FBxWifi, ensure the installation location provides line-of-
sight access to the transceiver.
Figure 2-1: FB1200 Flow Computer Dimensions — Multivariable Sensor Version (Option F1)

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Figure 2-2: FB1200 Flow Computer Dimensions — No Integral Sensor Version (Option F0)

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Installation 15
Figure 2-3: FB1200 Flow Computer Dimensions — Static Pressure Sensor (Option F2)
2.5 General Wiring Guidelines
The flow computer’s pluggable terminal blocks use compression-type terminals.
The 5.08 mm pitch terminal blocks accommodate wire between 28 and 12 AWG; the 3.81 mm
pitch terminal blocks accommodate wire between 28 and 14 AWG.
 When making a connection, insert the bare end of the wire (approx. 1/4" max) into the clamp
adjacent to the screw and secure the screw.
 To prevent shorts, ensure that no bare wire is exposed.
 Allow some slack in the wire while making terminal connections. Slack makes the wires more
manageable and helps minimize mechanical strain on the terminal blocks.
 Use twisted pair, shielded and insulated cable for communication and I/O wiring to minimize
signal errors caused by electromagnetic interference (EMI), radio frequency interference
(RFI) and transients. When using shielded cable, ground all shields at only one point in the
appropriate system. This prevents circulating ground current loops that can cause signal
errors.
2.6 Front or Rear End Caps
The flow computer includes two threaded covers (end caps). The front end cap includes a window
for viewing the HMI module; the rear end cap provides access to the terminal plate for power and
I/O wiring.

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2.6.1 Removing/Replacing Retaining Clamp on End Caps
For flameproof ATEX/IEC applications, each end cap includes a retaining clamp which screws down
to prevent the end cap from being unscrewed.
Figure 2-4: Front End Cap with Retaining Clamp Fitted
1 End Cap
2 Screw
3 Retaining Clamp
Figure 2-5: Retaining Clamp in Place
To loosen or tighten the screw, use a 3mm hexagonal wrench. When tightening, torque to 12 in-lbs
(1.4 N m).
Figure 2-6: Retaining Clamp and Screw

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Installation 17
2.6.2 Removing the Front or Rear End Caps
DANGER
EXPLOSION HAZARD: Never remove end cap(s) in a hazardous location. Removing end cap(s) in a
hazardous location could result in an explosion.
Note
If you need more leverage place a long screwdriver or other appropriate tool across the two
notches in the end cap to act as a pry bar (see Figure 2-7).
Figure 2-7: Removing or Tightening the End Cap with Long Screwdriver
1. Remove the retaining clamp (if present). (See Section 2.6.1)
2. Grasp the end cap (front or rear).
Figure 2-8: Front (left) and Rear (right) End caps
3. Unscrew the end cap turning it counter-clockwise until it comes off. Set it aside in a safe
location.

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18 Installation
Figure 2-9: Front (left) and Rear (right) End Caps Removal
2.6.3 Replacing the Front or Rear End Caps
DANGER
EXPLOSION HAZARD: Ensure the area in which you perform this operation is non-hazardous.
Performing this operation in a hazardous area could result in an explosion.
1. Grasp the end cap (front or rear).
2. Carefully align the end cap threads with the threads of the enclosure.
Important
When replacing the rear end cap, ensure wires connecting to the terminal plate do not get
crimped or caught between the end cap threads and the enclosure.
3. Screw the end cap clockwise (eight full turns) until it is tightly sealed to the enclosure.
4. Replace the retaining clamp (if required). (See Section 2.6.1)
Note
If you need more leverage place a long screwdriver or other appropriate tool across the two
notches in the end cap to act as a pry bar (see Figure 2-7).
2.7 Mounting the Enclosure
You can mount the flow computer either directly to a manifold on the pipeline or indirectly on a
two-inch pipe or pole.
Direct mount installations use either a traditional mounting kit or a coplanar mounting kit. Indirect
mount installations use an inline mounting kit.
2.7.1 Bolting Considerations
If the flow computer installation requires assembly of a process flange, manifold, or flange
adapters, follow these assembly guidelines to ensure a tight seal for optimal performance
characteristics of the flow computer.
Only use bolts supplied with the flow computer or sold by Emerson Remote Automation Solutions
as spare parts. Refer to the figure for common flow computer assemblies with the bolt length
required for proper flow computer installation.

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Installation 19
DANGER
Note
For all other manifolds, contact your local Emerson Sales office or Emerson Impact Partner.
Bolts are typically carbon steel or stainless steel. Confirm the material by viewing the markings on
the head of the bolt and referencing the figure. If bolt material is not shown in the figure, contact
your local Emerson Remote Automation Solutions representative for more information.
Figure 2-10: Transmitter with Coplanar Flange
Figure 2-11: Transmitter with Coplanar Flange and Optional Flange Adapters
Figure 2-12: Transmitter with Traditional Flange and Optional Flange Adapters
Use the following bolt installation procedure:
1. Carbon steel bolts do not require lubrication. Stainless steel bolts are factory-coated with a
lubricant to ease installation. Do not apply any additional lubricant when installing either
type of bolt.
2. Finger-tighten the bolts.

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20 Installation
3. Torque the bolts to the initial torque value using a crossing pattern. See Table 2-3 for initial
torque value.
4. Torque the bolts to the final torque value using the same crossing pattern. See Table 2-3 for
final torque value.
5. Verify that the flange bolts protrude through the sensor module before applying pressure.
Table 2-3: Torque Values for the Flange and Flange Adapter Bolts
Bolt Material Head markings Initial Torque Final Torque
Carbon
Steel (CS)
300 in. -lbs.
(33.9 N m)
650 in. -lbs.
(73.4 N m)
Stainless Steel
(SST)
150 in. -lbs.
(16.9 N m)
300 in. -lbs.
(33.9 N m)
Figure 2-13: Proper Bolt Installation
1 Bolt
2 Sensor module
2.7.2 O-rings with Flange Adapters
DANGER
Failure to install proper flange adapter O-rings may cause process leaks, which can result in death
or serious injury. Only use the O-ring that is designed for its specific flange adapter.

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Figure 2-14: O-rings with Flange Adapters
1 Flange
2 O-ring
3 Square PTFE-based profile
4 Round Elastomer profile
1. Whenever the flange or adapters are removed, visually inspect the O-rings.
2. Replace the O-rings if there are any signs of damage, such as nicks or cuts.
3. If the O-rings are replaced, re-torque the flange bolts and alignment screws after installation
to compensate for seating of the O-rings.
2.7.3 Direct Mount
Direct mount installations use either a traditional mounting kit or a coplanar mounting kit. Mount
the flow computer directly to the pipeline only if the pipeline includes a process manifold.
DANGER
1. Place taps in the top or side of the line.
2. Mount the flow computer beside or above the taps.
2.7.4 Indirect Mount
You can mount the flow computer to a two-inch pipe or pole. Indirect mount can use the inline,
coplanar, or traditional flange mounting kits.
DANGER

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Figure 2-15: Traditional Flange Mounting Kit
1 2.0 in. pipe diam. U-bolt assembly (5/16-18 x 4.0 LG) with (2) nuts (item 3)
2 Mounting bracket
3 Apply Loctite®
222™ Low Strength Purple Threadlocker to nuts. Torque nuts to 30
in-lbs (3.4 N m
4 7/16-20 x .625 cs/zinc cobalt screws (4). Torque to 30 in-lbs (3.4 N m)

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Figure 2-16: Coplanar Mounting Kit
1 Tubular L-shaped bracket
2 3/8-16 x 1 ½ in socket head wire lockable screw (2) — Apply Killark® LUBG-6 Thread
Lubricant to threads. Torque screws to 30 in-lbs (3.4 N m)
3 Split 3/8 lock washer (2)
4 5/16-18 keps nut (2). Apply Loctite 222 Low Strength Purple Threadlocker to nuts. Torque
nuts to 30 in-lbs (3.4 N m)
5 U-bolt bracket
6 2-inch diameter pipe U-bolt

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Figure 2-17: Inline Mounting Kit
1 Pipe mounting bracket
2 U-bolt 2 ½ inch diam. pipe (5/16-18 x 3.75 long)
3 5/16 flat lock washer (2)
4 5/16-18 300 series hex nut (2) - Apply Loctite 222 Low Strength Purple Threadlocker to
threads. Torque nuts to 30 in-lbs (3.4 N m)
5 U-bolt clamp assembly - Apply Loctite 222 threadlocker to threads. Torque nuts to 30 in-lbs
(3.4 N m)
2.7.5 Rotating the Housing
To improve accessibility to the HMI module or to ease wiring, you can optionally rotate the
housing.
Important
Never rotate the housing more than 180 degrees from its original (as-shipped) position. Over-
rotation can break electronics within the unit.

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Figure 2-18: Housing Rotation Set Screw (1 each side)
1 Set Screw (one each side)
DANGER
3. Loosen the two housing rotation set screws.
4. Rotate the housing no more than 180 degrees from its original (as-shipped) position.
5. Re-tighten the two housing rotation set screws. Torque to 6 in-lbs. (0.7 N m).

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2.8 Grounding the Device
The flow computer includes a grounding lug on the terminal plate.
Figure 2-19: Ground Lug
1 Ground Lug
DANGER
 Once you have installed the unit, run a ground wire between the ground lug and a known
good earth ground. You route the ground wire through one of the conduit fittings.
 Use stranded copper wire to earth ground and keep the length as short as possible.
 Clamp or braze the ground wire to the ground bed conductor (typically a stranded copper
AWG 0000 cable installed vertically or horizontally).
 Run the ground wire so that any routing bend in the cable has a minimum radius of 30.5 cm
(12 inches) below ground and 20.4 cm (8 inches) above ground.
 For more information on grounding or if your installation uses cathodic protection, refer to
Site Considerations for Equipment Installation, Grounding, and Wiring (D301452X012).
2.9 Terminal Plate
The terminal plate includes the various terminal blocks (TB) for power and I/O connections.

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The terminal plate’s appearance varies depending upon whether you have the optional 6-channel
expansion I/O module installed with 3.81 pitch connections; when it is installed there are eight or
nine connections per terminal blocks instead of six 5.08 pitch connections. Compare your device to
the pictures to see which terminal plate you have.
Figure 2-20: Terminal Plate (without Optional I/O with 6 5.08 mm Pitch Connectors)

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Terminal Plate (with Optional I/O with 8 3.81 mm Pitch Connectors)
2.10 Power Modes
To keep power consumption to a minimum, especially for remote sites, the flow computer can run
in two different power modes: Low Power Mode (4 or 8 MHz CPU clock speed) or Standard Power
Mode (60 MHz CPU clock speed).
2.10.1 Low Power Mode
The flow computer normally runs in low power mode for typical metering applications. The radio
Power Control function (configurable in FBxConnect) switches the flow computer into standard
power mode at specified times when serial communications are required, then it reverts to low
power mode when the communication period is over. A serial connection to a remote 4088B MVT
can occur in low power mode.

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The local display (HMI module) with FBxWifi communications and FBxWifi uses additional power.
You can configure it in FBxConnect to shut down after a period of inactivity.
Important
You must disable the Ethernet port (using a jumper) to run in low power mode. See Section 2.13.3.
Table 2-4: Typical Power Usage — Low Power Mode at Room Temperature
Description Power Usage (mW) at 6.1Vdc
Base flow computer with integral multivariable DP and
pressure sensor and temperature measurement for a single
meter run.
Historical configuration supports maximum of:
 4 averages
 12 Station 1 history points (Group 4)
 10 User Periodic history points (Group 1)
47
Base flow computer with integral static pressure sensor and
temperature measurement and a pulsed input for a single
meter run
 4 averages
 12 Station 1 history points (Group 4)
45
Base flow computer with integral multivariable DP and
pressure sensor and temperature measurement,
communicating to remote 4088B-dual meter run (4088B
externally powered)
 8 averages
 24 Station 1 & Station 2 history points (Group 4/Group 5)
82
Additional Load Options:
Display and backlight active 292
FBxWifi 315
FBxWifi and display active 337
DO active (1 Hz, 50:50 duty cycle, no load) 1
Important
If you increase the number of history points/averages beyond any of the maximum limits detailed in
Table 2-4, the flow computer cannot operate in low power mode and automatically runs in standard
power mode.

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2.10.2 Standard Power Mode
When serial communication is active (other than to a remote 4088B MVT) the flow computer
operates in standard power mode. The unit also uses standard power mode when:
 The HMI module display is ON
 FBxWifi is active
 Ethernet port enabled in the flow computer
 Modbus Master communication active
 PIDs, Math/logic Blocks, Action Blocks, Effect blocks enabled
 6-channel expansion I/O board installed and enabled in the flow computer; if board installed
but disabled in FBxConnect, can remain in low power mode
 Power control zone enabled
Table 2-5: Typical Power Usage — Standard Power Mode at room temperature
Description
Power Usage
(mW) at 6Vdc
Power Usage
(mW) at 12Vdc
Power Usage
(mW) at 24Vdc
Base flow computer with integral
multivariable DP and pressure sensor and
temperature measurement for a single
meter run
230 245 287
Base flow computer with integral static
pressure sensor and temperature
measurement and a pulsed input for a
single meter run
244 260 305
Base flow computer with integral
multivariable DP and pressure sensor and
temperature measurement,
communicating to remote 4088B - dual
meter run (4088B externally powered)
278 306 373
Additional Load Options:
Display and backlight active 162 168 178
FBxWifi 189 185 200
FBxWifi and display active 204 207 221
DO active (1 Hz, 50:50 duty cycle, no load) 1 1 1
PI active (10 KHz, 50:50 duty square wave) 13 14 15
6-channel expansion I/O board installed 40 49 80
Ethernet enabled 100 Mbit 435 421 462
Ethernet active 100 Mbit 459 443 489

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2.10.3 Notes on Battery Life
Battery life varies based on numerous factors including temperature, communication usage, and
various load options. To achieve the maximum battery life noted in the product data sheet requires
that you:
 Limit use of the display, backlight, and FBxWifi options.
 Limit communication activity.
 Disable power to all I/O (except for the MV or static pressure sensor, or RTD). To do this, click
Configure > I/O Setup > I/O Configuration > Properties and select Disable for each I/O
module.
See the product data sheet FB1200 Flow Computer (D301790X012) for information on the
additional power load of various options.
2.11 Connecting Power
Power can come from an external DC supply, or a lead acid battery pack with a solar panel. See
Section 2.12.4 for information on solar power connections.
Power connections are made through conduit fittings to the terminal plate. Remove the rear end
cap for access to the terminal plate.

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2.11.1 Connecting DC Power
DANGER
When power comes from an external DC supply, connect using the +DCIN and —DCIN terminals.
Use standard copper wire (#18 AWG minimum). The device supports both 12V and 24V power
supplies. It accepts DC voltage from 5.7 to 30V; the amount of power required varies depending
upon the options used.
Note
The top portion of Figure 2-21 shows the unit with optional I/O; the bottom portion shows the unit
without optional I/O.
Figure 2-21: DC Power Connections

1 To External power supply

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2.11.2 Connecting Battery Power
DANGER
When power comes from an internal battery pack, the battery pack plugs into one of two
connectors.
Figure 2-22: Connecting the Battery Pack
1 Left Battery Connector
2 Right Battery Connector
Restriction
The solar panel and lead acid battery combination cannot be used with ATEX/IECEx applications.

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2.12 Installing the Optional Solar Panel
If you purchased the lead acid battery/solar panel kit for main power, you need to install the
supplied 6W solar panel. If you purchased the lead acid battery with a solar regulator but you are
supplying your own solar panel, follow the manufacturer’s instructions for remote mounting.
DANGER
Solar panel installation involves:
 Attaching mounting hardware to the solar panel (if not attached prior to shipment).
 Mounting the solar panel in one of two ways:
 Integral mount (solar panel attaches directly to the flow computer)
 Remote mount (solar panel mounts to a pole)
 Wiring power to the solar panel.
 Setting the tilt angle of the panel for maximum solar exposure.
2.12.1 Attaching Mounting Hardware to the Solar Panel
DANGER
Attach mounting hardware to the solar panel as shown in Figure 2-23.
 Attach aluminum tilt brackets (Item 2) to solar panel using the provided pan head screws
(Item 3), hex nuts (Item 10 in Figure 2-24), and #10 lock washers (Item 9 in Figure 2-24).
 Apply Loctite®
Threadlocker 222 sparingly to threads of hex nuts (Item 6). Attach mounting
bracket to tilt brackets using provided hex nuts (Item 6), hex bolts (Item 5), washers (Item 4),
and spring lock washers (Item 7). The spring lock washer goes between the washer and the
nut. Torque to 30 in-lbs (3.4 N m).

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Figure 2-23: Attaching Mounting Hardware to the Solar Panel
1 6V, 6W solar panel
2 aluminum tilt bracket (2)
3 10-32 x ½ pan head screw (4). Note: Matching hex nuts and washers not visible in this
graphic; see Items 9 and 10 in Figure 2-24
4 5/16 flat washer (4); only two visible in this graphic
5 5/16-18 x .75 LG hex head bolt (2)
6 5/16-18 hex nut (2); only one visible in this graphic
7 5/16 flat spring lock washer (2) only one visible; placed on bolt between washer and nut
8 mounting bracket

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2.12.2 Mounting the Solar Panel (Integral Mount)
DANGER
Restriction
The solar panel and lead acid battery combination cannot be used with ATEX/IECEx applications.
The integral mount solar panel cannot be used in a Class I Division 1 area; C1D1 solar panels must
be remote mounted with the solar panel in a safe area.
1. Apply Loctite®
380™ Black Instant Adhesive to threads of elbow pipe (Item 15 in Figure 2-
20). Attach elbow pipe (Item 15) to the flow computer conduit opening (Item 16); torque to
50 in-lbs (5.6 N m).
2. Apply Loctite380 adhesive sparingly to threads of pipe (Item 14).
3. Attach pipe (Item 14) to elbow pipe (Item 15). Torque to 50 in-lbs (5.6 N m).
4. Attach pipe cap (Item 11) to top of pipe (Item 14). Torque to 50 in-lbs (5.6 N m).
5. Apply Loctite 222 threadlocker sparingly to threads of U-bolt (Item 12).
6. Attach solar panel assembly to pipe (Item 14) using U-bolt (Item 12).
7. Attach a ground wire at the back of the solar panel. For more information on grounding,
refer to Site Considerations for Equipment Installation, Grounding, and Wiring Manual
(D301452X012).
8. Adjust swivel and tilt angle for maximum solar exposure (see Section 2.13.5).

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Figure 2-24: Integral Mounted Solar Panel
2 aluminum tilt bracket (2)
3 10-32 x ½ pan head screw (4).
4 5/16 flat washer (4); only two visible in this graphic
5 5/16-18 x .75 LG hex head bolt (2)
8 mounting bracket
9 #10 lock washer (4)
10 #10-32 hex nut (4)
11 ¾ NPT pipe cap
12 U-bolt 1 1/8 in. diam. pipe x ¼ -20 x 2-inch-long
13 pipe threads (2)
14 ¾ NPT x 8-inch-long threaded pipe
15 ¾ NPT 90-degree female x male elbow pipe
16 Conduit fitting

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2.12.3 Mounting the Solar Panel (Remote Mount)
DANGER
Restriction
Battery power is not allowed in ATEX/IECEx applications.
1. Apply Loctite 222 thread locker sparingly to threads of U-bolt (Item 12).
2. Attach solar panel assembly to pole using U-bolt (Item 12). Torque to 30 in-lbs (3.4 N m).
3. Adjust swivel and tilt angle for maximum solar exposure (see Section 2.13.5).
Figure 2-25: Remote Mounted (pole mounted) Solar Panel
2 mounting bracket
12 U-bolt 1 1/8 in. diam. pipe x ¼ -20 x 2 inch long
17 pole (customer supplied)

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Installation 39
2.12.4 Connecting Solar Power
DANGER
When power comes from a solar panel/lead acid battery combination, connect using the +SPIN and
—SPIN terminals and standard copper wire (#18 AWG minimum).
Note
The top portion of Figure 2-26 shows wiring for units with option I/O; the bottom portion shows
wiring for units without optional I/O.
Figure 2-26: Wiring Solar Power
1 To solar panel
Restriction
Battery power is not allowed in ATEX/IECEx applications.

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2.12.5 Adjusting the Optional Solar Panel Tilt Angle
DANGER
The mounting brackets allow you to adjust the solar panel for maximum solar exposure. You can
adjust the swivel of the panel by adjusting the U-bolt.
Figure 2-27: Adjusting Solar Panel Tilt Angle
 Point the solar panel surface due south (in the northern hemisphere) or due north (in the
southern hemisphere) at an angle determined by the latitude of the site. Table 2-6 shows the
angle (from horizontal) at which you should install the solar panel to maximize annual energy
output. At most latitudes, you can improve performance by reducing the angle during the
summer and increasing the angle during the winter. If no seasonal adjustments in panel
direction are needed then adjust the position for the worst-case December-February angle.
 Solar insolation is the amount of solar energy in hours received each day by an optimally
tilted panel during the worst month of the year. An insolation rating of one hour means that
the site, on average, would receive one hour of solar energy at the panel's rated power level
(1000W/m2
per day). This rating varies from less than one hour in northern Canada to more
than six hours in the Sahara Desert.

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Table 2-6: Solar Panel Tilt Angle
Latitude Installation Angle
0 to 4 10 from horizontal
5 to 20 Add 5 from the local latitude
66 to 75 80 from horizontal
2.13 Connecting Communication Ports
DANGER
The communication ports allow you to connect either to a PC or laptop running FBxConnect
software or to other devices. If your application measures two meter runs, you must dedicate a
port for communication to the external transmitter for the second meter run.
Access the three serial communication ports and the Ethernet port on the terminal plate under the
rear end cap. Route communication cables through the conduit fittings and connect the cables on
the terminal plate.
2.13.1 Connecting to COM1
COM1 can be configured for RS-232, RS-485 (2-wire), or RS-485/422 (4-wire) communications.
When connecting COM1 to another device using RS-232, use wiring as shown in Figure 2-28.
Note
The upper portion of Figure 2-28 shows wiring for units with optional I/O; the lower portion shows

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Figure 2-28: Connecting a Device to COM1 Using RS-232
1 RS-232 port (COM1) on FB device
2 RS-232 port on external device
When connecting COM1 to another device using RS-485/422 (4-wire), use wiring as shown in
Figure 2-29.
Note

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Figure 2-29: Connecting a Device to COM1 Using RS-485/422 (4-wire)
1 RS-485/422 (4-wire) port (COM1) on FB device
2 RS-485/422 (4-wire) port on external device
When connecting COM1 to another device using RS-485 (2-wire), use wiring as shown in Figure 2-
30.
Note

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Figure 2-30: Connecting a Device to COM1 Using RS-485 (2-wire)
1 RS-485 (2-wire) port (COM1) on FB device
2 RS-485 (2-wire) port on external device
Regardless of the interface standard (RS-232, RS-485 [2-wire or 4-wire]), you must use FBxConnect
to configure the port for proper usage.
2.13.2 Connecting to COM2 and COM3
COM2 and COM3 operate identically. Each can be configured for either RS-232 or RS-485 (2-wire)
communication.
When connecting COM2 or COM3 to an RS-232 port on another device (a PC or another
controller/flow computer) use wiring as shown in Figure 2-31:

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Installation 45
Figure 2-31: Connecting a Device to COM2 or COM3 Using RS-232 (with Optional I/O)
Note
COM3 does not have its own GND terminal. Use either GND terminal on the COM1 terminal block.

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46 Installation
Figure 2-32: Connecting a Device to COM2 or COM3 Using RS-232 (without optional I/O)
Note
When connecting COM2 or COM3 to an RS-485 (2-wire) port on another device (such as a
transmitter), use wiring as shown in Figure 2-33:

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Figure 2-33: Connecting a Device to COM2 or COM3 Using RS-485 (2-wire) (with optional I/O)
Note

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48 Installation
Figure 2-34: Connecting a Device to COM2 or COM3 Using RS-485 (2-wire) (without optional I/O)
Note
Neither COM2 nor COM3 have GND terminals. Use either GND terminal on the COM1 terminal
block when grounding COM2 or COM3.
Regardless of the interface standard (RS-232 or RS-485 2-wire), you must use FBxConnect to
configure the port for proper usage.
2.13.3 Ethernet Port
The Ethernet port is a standard 8-pin 10/100Base-T RJ-45 modular connector located on the
terminal plate. Connect to the Ethernet port using the appropriate Category 5 shielded patch cable

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Note
The default IP address for the Ethernet port is 192.168.1.10; the default port is 20000.
Figure 2-35: Location of Ethernet Port
1 Ethernet Port
Note
If you ordered Ethernet, the unit ships with Ethernet enabled. If you need to operate the device in
lower power mode, you must disable Ethernet. Jumper J10 on the CPU module (see Figure 2-36)
controls whether Ethernet is enabled or disabled (lower power mode). See the CPU Module Field
Replacement Guide (D301802X012) for information on how to open the unit to gain access to the
CPU module.

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Figure 2-36: Ethernet Port jumper

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I/O Configuration and Wiring 51
Section 3: I/O Configuration and Wiring
 Analog Inputs
 Analog Outputs
 Digital Inputs
 Digital Outputs
 Pulse Inputs
 Connecting the RTD
 Connecting a Rosemount 4088B Transmitter For Use in a Second Meter Run
I/O in the flow computer comes from the integrated multivariable sensor and RTD connector, the
CPU board, as well as from the optional 6-channel expansion I/O board.
Note
When using a digital output to drive an inductive load (such as a relay coil), place a suppression diode
across the load. This protects the DO from the reverse Electro-Motive Force (EMF) spike generated
when the inductive load is switched off.
Notes About Power for an External Device Connected to a Flow Computer I/O Point:
If the external device does not include its own integrated power supply, you must provide your own
external supply (30Vdc maximum) for that device.

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52 I/O Configuration and Wiring
Figure 3-1: Base I/O on CPU (with Optional I/O)
A When wiring a 1-5 V Analog Input (AI), use configuration at left
B When wiring a 4-20 mA Analog Input (AI), use configuration at left
1 Field Device
2 Power Supply 30Vdc Max
3 500 mA load max
4 To AGND
5 To AIAOx
6 Dry contact

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Figure 3-2: Base I/O On CPU (without Optional I/O)
1 Field Device
3 500 mA load max
4 To AGND
5 To AIAOx
6 Dry contact

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Figure 3-3: Optional 6-channel Expansion I/O Module
1 Field Device
3 500 mA load max
4 To AGND
5 To AIAOx
6 Dry contact

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3.1 Analog Inputs
The flow computer includes two on-board channels you can individually configure as either analog
inputs (AI) or analog outputs (AO). In addition, if you purchased the optional 6-channel expansion I/O
board, there are two additional channels you can individually configure as either AIs or AOs.
Note
No external resistor is required for a current (mA) device. You can apply a 250 ohm resistor using
analog input configuration selections in FBxConnect.
When configured as analog inputs, the channels have the following characteristics:
Table 3-1: Analog Input Characteristics
Type Number Supported Characteristics
Analog
Input
(AI)
0 to 4 as follows:
 1 or 2 non-isolated channels on CPU
board (AIAO1 and AIAO2) always
present. You can configure one, both,
or neither as AIs.
 1 or 2 additional non-isolated channels
on optional 6-channel expansion I/O
board (AIAO3 and AIAO4). If present
you can configure one, both, or neither
as AIs.
 4 to 20 mA range (@24Vdc), or 1 to
5Vdc
 Over range for calibration purposes:
3.2 to 20.8 mA or 0.8 to 5.2 Vdc
 Externally powered
 Factory calibrated (re-calibration is
unnecessary for at least 3 years)
 Signal conditioning
 When you configure a channel as an
AI it cannot be used as an AO
3.1.1 AI Wiring
Wire analog inputs as shown in the following figures.
Note
Figures 3-4 and 3-5 show analog input wiring for AIAO2. AIAO1 and AIAO2 share the same GND
terminal.

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Figure 3-4: 4-20 mA AI Wiring (Base I/O with Optional I/O Module)
1 Field Device
Figure 3-5: 1-5 V AI Wiring (Base I/O with optional I/O)
1 Field Device

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Figure 3-6: AI Wiring (Base I/O without Optional I/O Module)
1 Field Device
3 To AGND
4 To AIAOx
Note
Figures 3-7 and 3-8 show analog input wiring for AIAO3. AIAO3 and AIAO4 share the same GND
terminal.

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Figure 3-7: 4-20 mA AI Wiring (with Optional 6-channel Expansion I/O Module).
1 Field Device
Figure 3-8: 1-5 V Analog Input (AI) Wiring (Optional 6-channel Expansion I/O Module
1 Field Device

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3.2 Analog Outputs
The flow computer includes two on-board channels you can individually configure as either analog
outputs (AO) or analog inputs. In addition, if you purchased the optional 6-channel expansion I/O
board, there are two additional channels you can individually configure as either AOs or AIs.
When configured as analog outputs, the channels have the following characteristics:
Table 3-2: Analog Output Characteristics
Analog
Output
(AO)
0 to 4 as follows:
board (AIAO1 and AIAO2) always
present. You can configure one, both,
or neither as AOs. Note: If you
configure both as AOs we recommend
you provide isolation to avoid ground
loops which could affect readings.
 1 or 2 additional non-isolated channels
board (AIAO3 and AIAO4). If present
you can configure one, both, or neither
as AOs.
 4 to 20 mA range (@24Vdc)
 Externally powered field device
(AIAO1/AIAO2)
 AO provides current to power field
device (AIAO3/ AIAO4)
 AO sinks current to system ground
 Factory calibrated (re-calibration is
unnecessary for at least 3 years)
 You can configure a fail state so that
on power up or if the CPU fails the
output drives to 0 μA
 When a channel is configured as an
AO it cannot be used as an AI
3.2.1 AO Wiring
Wire analog outputs as shown in the following figures.
Note
Figure 3-9 shows analog output wiring for AIAO1. AIAO1 and AIAO2 share the same GND terminal.

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Figure 3-9: AO Wiring (Base I/O with Optional I/O)
1 Field Device
Figure 3-10: AO Wiring (Base I/O without Optional I/O)
1 Field Device

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Note
Figure 3-11 shows analog output wiring for AIAO4. AIAO3 and AIAO4 share the same GND terminal.
Figure 3-11: AO Wiring (with Optional 6-channel Expansion I/O Module)
1 Field Device
3.3 Digital Inputs
Depending upon how you ordered it, the flow computer includes either two or six channels you can
individually configure as digital inputs (DI), digital outputs (DO), or pulse inputs (PI).
When configured as digital inputs, the channels have the following characteristics:
Table 3-3: Digital Input Characteristics
Digital
Input
(DI)
0 to 6 as follows:
board (PI/DI/DO1 and PI/DI/DO2). Two
always present; you can configure one,
both, or neither as DIs.
 1 to 4 additional non-isolated channels
board (PI/DI/DO3 through PI/DI/DO6).
If present you can configure one,
two, three, four or none as DIs.
 Circuit protection
 30ms input filtering
 Maximum input frequency of 10 Hz
 Selectable current source of 66 μA or
2 mA
 Either externally driven or internally
driven and pulled to ground by dry
contact closures or open collector
devices
 When a channel is configured as a DI
it cannot be used as a DO or PI
channel

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3.3.1 DI Wiring
The following figures show how to wire digital inputs.
Note
Figure 3-12 shows discrete input wiring for DIDO1. DIDO1 and DIDO2 share the same GND terminal.
Figure 3-12: DI Wiring (Base I/O with Optional I/O)
1 Dry contact

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Figure 3-13: DI Wiring (Base I/O without Optional I/O)
1 Dry contact
Note
Figure 3-14 shows discrete input wiring for DIDO5. DIDO5 and DIDO6 share the same GND terminal.
DIDO3 and DIDO4 share a different GND terminal.
Figure 3-14: DI Wiring - (with Optional 6-channel Expansion I/O Module)
1 Dry contact

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3.4 Digital Outputs
Depending upon how you ordered it, the flow computer includes two or six channels you can
configure as digital outputs (DO), digital inputs (DI) or pulse inputs (PI).
Note
When using a digital output to drive an inductive load (such as a relay coil), place a suppression diode
across the load. This protects the DO from the reverse Electro-Motive Force (EMF) spike generated
when the inductive load is switched off.
When configured as digital outputs, the channels have the following characteristics:
Table 3-4: Digital Output Characteristics
Digital
Output
(DO)
0 to 6 as follows:
both, or neither as DOs.
If present you can configure one, two,
three, four or none as DOs.
 DO is a low side switch that sinks
current to ground
 Current rating of 500 mA
 Maximum operating frequency of 50
Hz
 Pulse off/on time can be configurable
with a 31 ms minimum on time and a
31 ms minimum off time
 Can be configured in software with an
output state for initial power-up and
in the case of a CPU failure
 Software configurable failure mode of
fail open, fail closed, or hold last state
 When a channel is configured as a DO
it cannot be used as a DI or PI channel

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3.4.1 DO Wiring
The following diagrams show how to wire digital outputs.
Note
Figure 3-15 shows digital output wiring for DIDO2. DIDO1 and DIDO2 share the same GND terminal.
Figure 3-15: DO Wiring (Base I/O with Optional I/O)
1 Power Supply 30VDC max
2 500 mA load max

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Figure 3-16: DO Wiring (Base I/O without Optional I/O)
2 500 mA load max
Note
Figure 3-17 shows digital output wiring for DIDO4. DIDO3 and DIDO4 share the same GND terminal.
Figure 3-17: DO Wiring (with Optional 6-channel Mixed I/O Module)
2 500 mA load max

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3.5 Pulse Inputs
The flow computer includes two channels that can be individually configured as pulse inputs (PI),
digital inputs (DI), or digital outputs (DO).
When configured as pulse inputs, the PI channels have the following characteristics:
Table 3-5: Pulse Input Characteristics
Pulse
Input
(PI)
0 to 6 as follows:
both, or neither as PIs.
If present you can configure one,
two, three, four or none as PIs.
 Supports dry contacts and open
collector outputs connected to
ground and voltage inputs
 Supports single pulse for volume or
mass
 Input filtering selectable at 30 μs or 1
ms
 Frequency range from 0 to10.5 KHz
 Maximum input frequency for the 1
ms filter is 300 Hz
 When a channel is configured as a PI it
cannot be used as a DI or DO channel
 ON when greater than 3.0V; OFF
when less than 2.0V
3.5.1 PI Wiring
The following diagrams show how to wire the pulse inputs.
Note
Figure 3-18 shows pulse input wiring for PIDIDO1. PIDIDO1 and PIDIDO2 share the same GND
terminal.

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Figure 3-18: PI Wiring (Base I/O with Optional I/O)
Figure 3-19: PI Wiring (Base I/O without Optional I/O)

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Note
Figure 3-20 shows pulse input wiring for PIDIDO5. PIDIDO5 and PIDIDO6 share the same GND
terminal. PIDIDO3 and PIDIDO4 share a different GND terminal.
Figure 3-20: PI Wiring (with Optional I/O Module)
3.6 Connecting the RTD
DANGER
RTD connections reside on the terminal plate under the rear end cap. The flow computer supports 2-
wire, 3-wire, and 4-wire operation. Route the RTD cable through the conduit fittings and connect
them on the terminal plate (as shown on Figure 3-21 and Figure 3-22).
Note
The device defaults to the 4-wire RTD configuration; you can change this setting in FBxConnect.

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Figure 3-21: Wiring for 2-Wire, 3-Wire, and 4-Wire RTD (Units with Optional I/O)
1 2-Wire RTD
2 3-Wire RTD
3 4-Wire RTD

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Figure 3-22: Wiring for 2-Wire, 3-Wire, and 4-Wire RTD (Units without Optional I/O)
1 2-Wire RTD
2 3-Wire RTD
3 4-Wire RTD

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3.7 Connecting a Rosemount 4088B Transmitter for Use in
a Second Meter Run
Data for the second run comes from an external transmitter such as the Rosemount 4088B.
Figure 3-23: Connecting a 4088B Transmitter for a Second Meter Run
1 RS-485 bus, twisted pair required
2 Enable AC termination using switches.
3 User-provided power supply (5.4V to 30V)

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See the Rosemount™ 4088 Multivarible™ Transmitter Reference Manual (00809-0100-4088, Rev CB,
Feb. 2017) for details on installing the 4088B.
1. Using twisted pair wire, connect the RS-485 terminals for COM3 to the RS-485 terminals on the
4088B as shown in the graphic.
2. Set switches on the 4088B for bus termination or use a 120 ohm resistor.
3. Use FBxConnect software to configure COM3 for RS-485. In particular, enable termination for
the port.

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Operation 75
Section 4: Operation
 Powering Up/Powering Down the Device
 Establishing Communications
 Communicating using the HMI Module
This section describes day-to-day operation of the Emerson FB1200 Flow Computer including how
to turn it on and off and how to communicate with it.
4.1 Powering Up/Powering Down the Device
DANGER
Do not attempt to connect or disconnect power from the unit in a hazardous area. Ensure the
area is non-hazardous. Failure to do so could result in an explosion.
1. Remove the front end cap.
2. Terminal block TB1 includes connections for DC power (+DCIN, -DCIN) and solar power
(+SPIN, -SPIN). Battery power (which is also used with solar power) has its own internal
connections.
 Plug in TB1 to activate DC or solar power. If your device uses an internal battery and it
is not connected, connect it as discussed in 2.12.3 Connecting Battery Power.
 Unplug TB1 to deactivate DC or solar power. If your device uses an internal battery,
disconnect the main battery.
This turns on (or shuts OFF) power from either an external power supply or the battery
pack/solar panel.
Note
When you turn power on, the backlight on the HMI module lights, momentarily turns off and then
remains lit while the INPUT LED blinks. After approximately one minute the initialization process
finishes and the HMI starts to display live data.
4.2 Establishing Communications
The flow computer supports three ways to establish communications: through the host SCADA
system, through a local laptop computer running FBxConnect, or through the HMI module.
4.2.1 Communicating with the SCADA Host
Communication to the flow computer through a SCADA host computer requires configuration of
the host computer software, which varies depending upon whether you are using OpenEnterprise
or another host software package. Much of this configuration is beyond the scope of this topic, but
no matter which host you are using, there are certain steps you must take:

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76 Operation
1. Decide how the SCADA host should communicates with the flow computer. This could be
through connection with one of the communication ports. A serial port connection could be
a cable directly connected to the SCADA host or there could be intermediate connections
through a radio or modem. An Ethernet port connection must be through an Ethernet switch
with an appropriate Category 5 shielded patch cable.
2. Decide which communication protocol you will use. This could be DNP3, ROC, or BSAP. See
these documents for more information:
 Emerson FB Flow Computer DNP3 Protocol Specifications Manual (D301806X012)
 ROC Protocol Specifications Manual (for Emerson FBx-series) (D301828X012)
 BSAP Communication Guide for FB1000/FB2000 Series Flow Computers (D301808X012)
3. Provide the SCADA host with information about the various parameters it needs to extract
from the application running in the flow computer. Typically, the SCADA host software
includes a utility that allows you to identify this information so it can be incorporated into the
database at the SCADA host.
4. Using whatever human-machine interface (HMI) tools exist for the SCADA host, create
graphical displays or reports that include the parameters from the application required for
successful operator interaction (setpoints, flow variables and so on).
4.2.2 Communicating with a Laptop Using One of the Serial Ports
 If the flow computer is not awake, you must wake it up first. (See Section 4.3)
 Your laptop must have Field Tools software with FBxConnect software installed.
 You must know a valid username/password combination for the flow computer.
DANGER
1. Connect a cable between a serial port (or serial/USB adapter) on your laptop and port COM2
on the flow computer.
2. Launch Field Tools and add a new serial connection for this device; this launches FBxConnect
configuration software. (If you already have an existing saved serial connection for this
device in Field Tools, just double-click on it in the Connections list.)
3. Log into the flow computer if prompted.
4. Use the FBxConnect configuration software to view or change any desired parameters.
5. When finished, log off the flow computer and disconnect the cable from its serial port.
4.2.3 Communicating with a Laptop Using Ethernet
Your laptop must have Field Tools software with FBxConnect software installed.
You must know a valid username/password combination for the flow computer.

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Operation 77
DANGER
1. Connect a Category 5 shielded cable between an Ethernet port on your laptop and an
Ethernet switch for your network.
2. Connect a Category 5 shielded cable between your Ethernet switch and the Ethernet port on
the flow computer.
3. Launch Field Tools and add an IP connection for the device then click Connect to start the
FBxConnect software. (If you already have an existing saved IP connection for this device in
Field Tools, just double-click on it in the Connections list.)
5. Use the FBxConnect software to view/change any desired parameters.
6. When finished, log off from the flow computer and disconnect the cable.
4.2.4 Communicating with a Laptop Wirelessly with FBxWifi
You must have purchased the flow computer with the optional FBxWifi communcations feature to
connect to a laptop PC wirelessly. Additionally:
 Wi-Fi
®
must be configured and working on your laptop PC.
 Your laptop PC must have Field Tools software with FBxConnect installed.
 You must know a valid username/password combination for the flow computer.
 You must know the name of the wireless network and the security key required to connect to
it.
 Your laptop PC must be within line-of-sight with either the front display of the flow computer
or of an external antenna for the FBxWifi communications module.
 If the flow computer is not awake, you must wake it up first. (See Section 4.3)
WARNING
Ensure that you and your laptop PC are in a non-hazardous area.
1. Launch Field Tools software and add a new wireless connection. (If you already have a saved
wireless connection for this device in Field Tools, just double-click on the device in the
Connections list and skip to Step 4.)
2. Select the wireless network to which the flow computer belongs and enter the appropriate
security key.
3. Click Connect to start the FBxConnect software.
5. Use the FBxConnect software to view or change any desired parameters.
6. When finished, log off the flow computer and disconnect from the wireless network.

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78 Operation
4.3 Communicating using the HMI Module
You must have purchased the flow computer with the HMI module version that includes the
optional display. Not all models include the display. Units without the display still include a button
to wake up the device and status LEDs.
Notes
 If the device is configured to require logins to view data, you must know a valid
username/password combination for the flow computer.
 To conserve power, the HMI module enters sleep mode after a period of inactivity. Sleep
mode disables FBxWifi communication. In FBxConnect, you can configure the number of
minutes of inactivity triggering sleep mode through the LCD Sleep Time parameter. Setting
this parameter to 0 disables sleep mode which keeps the HMI module on but uses
significantly more power.
The operator “awakens” the device by holding a finger against the front cover glass over the
Hold to Wake button (the left-most button) for typically five to ten seconds. You can also
pre-define a number of automatic wake-up times during the day from the Power Control
screen in FBxConnect.
To temporarily keep the HMI module out of sleep mode, maintain an active FBxConnect
connection. So long as communications remain active, the HMI module does not sleep.
1. Go to the front of the flow computer and touch your finger on the glass above the Hold to
Wake button until the display lights up. (This may take several seconds.)
Figure 4-1: Waking up the Display
2. If prompted, login using a valid username/password combination. For information on how
the buttons work, see Table 4-1.
3. The display enters Screen Saver Mode where it sequentially presents a series of screens
showing details about the meter run flow rates, totals, and current process variables.

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Operation 79
Figure 4-2: Infrared (IR) Button Location
1 Left Infrared (IR) Button
2 Down Infrared (IR) Button
3 Up Infrared (IR) Button
4 Right Infrared (IR) Button
Note
When using the IR buttons, aim your finger at the round spot just below the arrow.

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80 Operation
Table 4-1: Infrared (IR) Buttons on HMI Module
Button Mode Use
OR Screen Saver  Tap once to move up or down one item through list
of parameters.
 Hold to stay on current parameter.
Data Entry  Tap (UP) once to move the cursor to the previous
character in the list or (DOWN) once to move the
cursor to the next character in the list.Hold (UP) or
(DOWN) to scroll more quickly through the
character list.
Idle Mode Hold to wake the display (if screen is off)
Screen Saver Log out (if logged on)
Data Entry  Tap once to move the cursor to the left.Hold to
perform action shown on screen (such as “Hold to
Accept”)
Data Entry  Tap once to move the cursor to the right.Hold to
perform action shown on screen (such as “Hold to
Cancel”)
Symbol(s) representing the status of a value may appear in the upper right of the display,
next to the description. Multiple symbols may display. If there are no data quality issues, no
symbols display.
Table 4-2: Symbols on Display
Symbol Meaning
Alarm: The parameter value shown is in an alarm state (such as High Alarm,
Low Alarm, etc.).
Override: The parameter value shown is in override mode (that is, a user-
entered fixed value).
Fault: The parameter value shown is somehow invalid.
Unverified: For parameter values that require additional validation (beyond
simple database min/max range checking), the firmware has not yet validated
the parameter value shown.

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Service and Troubleshooting 81
Section 5. Service and Troubleshooting
 Returning the Unit for Repairs
 Interpreting the Status LEDs
 Switch and Buttons
 Removing/Replacing the HMI Module
 Replacing the Main Battery Pack
 Removing/Replacing the SRAM Battery
 Upgrading System Firmware
To maintain hazardous location certifications, you can only replace components in the field with
the exact same part so that the model string on the data plate remains correct. This means you
cannot add any hardware not reflected in the model string or upgrade a hardware component to a
newer version; any such upgrades are prohibited and void the hazardous location certification.
For a list of user serviceable parts contact your Emerson Remote Automation Solutions sales
representative or Emerson Impact Partner.
This chapter describes the service tasks that everyone needs to know such as replacing batteries or
installing a firmware upgrade. A separate series of field replacement guides covers major field
replaceable components.
Any replacement not covered in this chapter or in the field replacement guides (such as adding or
upgrading hardware or replacing sensors) can only be performed at an Emerson-authorized repair
facility.
Important
Use only batteries supplied with the flow computer or sold by Emerson as spare parts for this flow
computer. If you substitute a battery you obtain elsewhere you will void your certification unless it is
the identical part from the same manufacturer as that supplied with the flow computer from
Emerson.

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82 Service and Troubleshooting
Figure 5-1: FB1200 Flow Computer Components
1 Front end cap (cover)
2 HMI module
3 Battery pack
4 Data plate
5 Rear end cap (cover)
6 Threaded ¾ in NPT to M20 x 1.5 conduit fitting (2 of 4 shown)
7 Housing/Enclosure
8 Sensor Module
9 Mounting hardware
5.1. Returning the Unit for Repairs
Only certain field replacement procedures are allowed under warranty and hazardous location
certification. Other types of repairs cannot be performed in the field. In those cases, you must ship
the unit to an Emerson-authorized repair facility. Contact Emerson Remote Automation Solutions
for a return authorization number and instructions for where to ship the unit.

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WARNING
International safety regulations restrict the shipment of lithium batteries. If you need to return
the flow computer, remove the lithium battery before you ship the unit. Failure to remove the
lithium battery may delay or prevent shipment of the flow computer.
5.2. Interpreting the Status LEDs
The flow computer display has four (4) status LEDs. The meaning of each LED varies depending
upon the color displayed or whether the LED flashes.
Figure 5-2: LED Locations
1 Input LED
2 Link LED
3 Status LED
4 Alarm LED

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Table 5-1: LED Descriptions
LED Color/State Meaning
Link LED GREEN
An active wired Ethernet connection exists.
Otherwise it is off. (FB1200/FB2200 only)
Input LED GREEN One of the IR buttons is being pressed.
Flashing YELLOW
CPU booting or CPU has not yet recognized
HMI module when HMI first powered on; goes
off when recognized.
Status LED GREEN OK - Normal
RED Unit failed
YELLOW
Low power source/change battery soon
(FB1100 Flow Computer with lithium battery
pack only)
Off No power
Flashing GREEN System is booting
Momentary GREEN —
approximately every 6
seconds
HMI module is in sleep mode (to reduce
power consumption); LED goes on when HMI
module checks the “Hold to Wake” IR button.
Alternating RED, GREEN,
YELLOW
HMI module boot firmware loaded but no
application is present. You may see this
during an HMI firmware update.
Alarm LED GREEN No alarms.
Flashing RED
HMI firmware update in progress.
RED Alarms are present.
Table 5-2: Special LED Sequences using Multiple LEDs
LED Sequence Color/State
Link, Input, Status, and Alarm all solid RED
HMI module failed. Replace with spare or
return for repairs.
Link and Alarm alternately flash RED; sequence
repeats
CPU stuck in boot mode. Contact technical
support.

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5.3. Switch and Buttons
A momentary switch and two push buttons on the HMI module provide trouble-shooting options
for the flow computer.
DANGER
EXPLOSION HAZARD: Never remove end cap(s) in a hazardous location. Removing end cap(s) in a
hazardous location could result in an explosion.
Table 5-3: Switch and Buttons
Button Name Purpose Procedure
SYSTEM RESET Resets power. This momentary switch
interrupts power to the flow
computer to reset it. Used if system is
powered on but is non-functional; this
attempts a reboot.
Move the SYSTEM RESET switch
either up or down. Unit powers off
and then restarts.
A Clears memory (SRAM). The SRAM
memory holds current data values and
pending alarm messages. If unit has
unexpectedly stopped operating, you
can depress this button on power-up
to clear that information from
memory (hard reset). Try this if a
SYSTEM RESET alone does not work.
1. Press and hold the A button.
2. While continuing to hold the A
button, move the SYSTEM RESET
switch either up or down to
initiate a reset.
3. Release the A button. The system
clears SRAM during the power up
sequence.
B Currently undefined None
5.4. Removing/Replacing the HMI Module
You do not need to power down the unit to replace the HMI module.
DANGER
Ensure the flow computer is in a non-hazardous area. Never remove/replace the HMI module in a
hazardous area.
Important
The HMI module includes the FBxWifi transceiver; once you remove the HMI module; Wi-Fi
communication with the flow computer ceases.
1. Remove the retaining clamp from the front end cap (if present). (See Section 2.6.1.)
2. Unscrew the front end cap.
3. Loosen the four captive fastening screws on the HMI module.

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Figure 5-3: Captive Fastening Screws
4. Grasp the HMI module and remove it by gently pulling it straight out.
5. To replace the HMI module, line up the printed circuit board (PCB) with the slot on the back
and gently press it back on. Tighten the four captive fastening screws.
6. Replace the front end cap. Screw the end cap clockwise (eight full turns) until it is tightly
sealed to the enclosure. Replace the retaining clamp, if applicable (see Section 2.6.1).
5.5. Replacing the Main Battery Pack
Periodically you must replace the main battery pack. FBxConnect provides a battery life indicator to
show the number of days in use.
WARNING
If lead acid battery voltage falls below 4.7V, the battery can no longer be recharged, and the
charging system considers the battery dead. You must replace the battery.
Figure 5-4: Main Battery Pack

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The device provides two battery connectors, enabling you to hot-swap the battery pack in a non-
hazardous location. Slide out the first battery pack (leaving it connected), attach the new battery to
the second (available) connector (so both batteries are connected), and then disconnect the old
battery pack.
DANGER
DANGER
EXPLOSION HAZARD: Do not disconnect equipment unless power has been removed or the area
is known to be non-hazardous.
DANGER
EXPLOSION HAZARD: Substitution of any components may impair suitability for Class I, Division 1
or Class I, Division 2.
DANGER
EXPLOSION HAZARD: Do not replace batteries unless power has been switched off or the area is
known to be non-hazardous. Batteries must only be changed in an area known to be non-
hazardous.
WARNING
There are no user-serviceable parts inside the battery pack. Do not open the battery pack as you
may damage the battery pack or injure yourself.
Restriction
Battery packs cannot be used with ATEX or IECEx applications.
Keep the replacement battery pack handy during the procedure.
3. Loosen the two bottom captive fastening screws on the HMI module. Leave the two top
screws connected to the battery pack.
4. Grasp the HMI module and gently pull it and the battery pack out of the enclosure, leaving
the battery still connected.

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Figure 5-5: Removing the Battery Pack
5. Connect the new battery to the open connector. Route the wires so they are in the recessed
area. Make sure the wires won’t get caught in the end cap threads.
6. Disconnect the old battery pack’s connector from the unit and set the old battery pack aside.
7. Slide the new battery pack into the unit.
8. Loosen the top captive fastening screws on the HMI module to separate it from the old
battery pack.
9. Align the HMI module with the new battery pack and the tab on the CPU carrier board
(bezel). Gently press the assembly on, being careful not to pinch the battery wires.
Tighten all four screws.
sealed to the enclosure. Replace the retaining clamp, if applicable (see Section 2.6.1).
5.6. Removing/Replacing the SRAM Battery
A lithium coin cell battery provides backup power for the SRAM and the real time clock. The SRAM
backup battery can last for up to 10,000 hours of cumulative operation, and only runs if the main
power system fails. You do not need to power down the unit to replace the SRAM backup battery.
Important
If the unit is ever powered down without the SRAM battery installed, SRAM data is lost. Always back
up your data before you remove the SRAM battery if you know that main power will also be off.
Important
Replacement SRAM backup batteries must be Rayovac® Model BR2335.
DANGER
Ensure the flow computer is in a non-hazardous area. Never remove end caps in a hazardous area.

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DANGER
Do not disconnect equipment unless power has been removed or the area is known to be non-
hazardous.
DANGER
EXPLOSION HAZARD: Substitution of any components may impair suitability for Class I, Division 1
or Class I, Division 2.
DANGER
hazardous.
3. Remove the HMI module.
4. Grasp the coin cell battery and remove it from its slot.
Figure 5-6: Removing/Replacing the Coin Cell Battery
5. Insert the new coin cell battery in the slot. The positive side (+) must be on top.
CAUTION
When inserting the SRAM coin cell battery, push the battery gently into its slot until it
stops. The battery should slide in easily. Do not use excessive force.
6. Replace the HMI module.
sealed to the enclosure. Replace the retaining clamp, if applicable (see Section 2.6.1.).

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5.7. Upgrading System Firmware
Periodically Emerson releases new system firmware for the flow computer to introduce new
features or update system functions.
You must know a valid username/password combination for the flow computer to complete this
process.
DANGER
1. Launch Field Tools and use FBxConnect to connect to the flow computer.
2. Click the Services tab, then click Firmware Update.
3. Click Configuration Save to save the flow computer’s configuration.
4. Click History Collection to save the historical data contained in the flow computer.
5. Click Firmware Update.
6. In the Firmware Update dialog box, click Browse and navigate to the zip file containing your
new system firmware. The grid updates with details of the firmware version currently in the
device, and the firmware version in the zip file.
Figure 5-7: Firmware Update Dialog Box
7. Select the checkbox in the Selected column to choose the firmware. If you are downloading
the same version that is already installed on the device, select Download Even If Unchanged.
Click Start to begin the firmware download. Allow the download to proceed to completion. If
you choose to cancel the firmware download before it completes, the system restores the
current version already in the device.

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Special Instructions for Class I Division 2 Locations 91
Appendix A: Special Instructions for Class I
Division 2 Locations
1. The Emerson FB1200 Flow Computer is listed by Underwriters Laboratories (UL) as non-
incendive and is suitable for use in Class I, Division 2, Groups A, B, C and D hazardous
locations or nonhazardous locations. Read this appendix carefully before installing a non-
incendive Emerson FB1200 Flow Computer. Refer to the other chapters of this manual for
general information. In the event of a conflict between the other chapters of this manual and
this appendix, always follow the instructions in this appendix.
2. The Emerson FB1200 Flow Computer includes both non-incendive and unrated field circuits.
Unless a circuit is specifically identified in this appendix as non-incendive, the circuit is
unrated. Unrated circuits must be wired using wiring methods as specified in Article 501-4(b)
of the National Electrical Code (NEC), NFPA 70 for installations in the United States, or as
specified in Section 18-152 of the Canadian Electrical Code for installation in Canada.
3. All communication ports terminate on the terminal plate within the enclosure. Wiring to the
connectors is unrated. No connections may be made to communication ports unless the
user ensures that the area is known to be nonhazardous. Connections to the "Local Port" are
temporary and must be short in duration to ensure that flammable concentrations do not
accumulate while it is in use.
4. An RTD may be supplied with the Emerson FB1200 Flow Computer. Connection to the RTD is
approved as a non-incendive circuit so that Division 2 wiring methods are not required.
5. I/O connections are unrated and must be wired using Division 2 wiring methods.
DANGER
DANGER
EXPLOSION HAZARD: Substitution of any components may impair suitability for Class I, Division
1 or Class I, Division 2.
DANGER
hazardous.

D301782X012
August 2020
92 Special Instructions for Class I Division 2 Locations
Figure A-1: Data Plate (No Battery) — Class I Division 2 Non-incendive (UL)

D301782X012
August 2020
Special Instructions for Class I Division 2 Locations 93
Figure A-2: Data Plate (Lead Acid Battery) — Class I Division 2 Non-incendive (UL)

D301782X012
August 2020

D301782X012
August 2020
Special Instruction for Class I Division 1 Locations 95
Appendix B: Special Instructions for Class I
Division 1 Locations
1. The Emerson FB1200 Flow Computer is listed by Underwriters Laboratories (UL) as explosion
proof and is suitable for use in Class I, Division 1, Groups C and D hazardous locations or
nonhazardous locations. Read this appendix carefully before installing an Emerson FB1200
Flow Computer. Refer to the other chapters of this manual for general information. In the
event of a conflict between the other chapters of this manual and this appendix, always
follow the instructions in this appendix.
2. The Emerson FB1200 Flow Computer includes both non-incendive and unrated field circuits.
Unless a circuit is specifically identified in this appendix as non-incendive, the circuit is
unrated. Unrated circuits must be wired using wiring methods as specified in Article 501-4(b)
of the National Electrical Code (NEC), NFPA 70 for installations in the United States, or as
specified in Section 18-152 of the Canadian Electrical Code for installation in Canada.
DANGER
Though the Emerson FB1200 Flow Computer has a local port for local interrogation, it
should not be accessed with the cover removed in a Class I Division 1 area unless it has first
been verified that no flammable concentrations exist in that area. The local port may be
wired through a conduit, using seals, to an unclassified or Division 2 area.
3. All communication ports terminate on the terminal plate within the enclosure. Wiring to the
connectors is unrated. No connections may be made to communication ports unless the
user ensures that the area is known to be nonhazardous. Connections to the "Local Port" are
temporary and must be short in duration to ensure that flammable concentrations do not
accumulate while it is in use.
4. An RTD may be supplied with the Emerson FB1200 Flow Computer. Connection to the RTD is
approved as a non-incendive circuit.
Note
A bendable RTD (with a plastic bushing, as utilized in Division 2 installations) may not be
used in a Division 1 area as it renders the area non-explosion proof. Use an RTD connection
head and explosion-proof conduit for Division 1 installations.
5. I/O connections are unrated and must be wired using wiring methods as specified in Article
501-4(b) of the National Electrical Code (NEC), NFPA 70 for installations in the United States, or
as specified in Section 18-152 of the Canadian Electrical Code for installation in Canada.

D301782X012
August 2020
DANGER
DANGER
EXPLOSION HAZARD: Substitution of any components may impair suitability for Class I, Division
1 or Class I, Division 2.
DANGER
hazardous.
DANGER
The area must be known to be non-hazardous before servicing the unit and before installing or
removing I/O wiring.

D301782X012
August 2020
Special Instruction for Class I Division 1 Locations 97
Figure B-1: Data Plate (No Battery) — Class I Division 1 Explosion Proof (UL)

D301782X012
August 2020
Figure B-2: Data Plate (Lead Acid Battery) — Class I Division 1 Explosion Proof (UL)

D301782X012
August 2020
ATEX Non-Sparking Zone 2Certifications 99
Appendix C: ATEX Non-Sparking Zone 2
Certifications
This appendix includes notes on ATEX certifications. For full details, please refer to the Emerson
FB1200 Flow Computer Safe Use Instructions (D301769X012).
Special Conditions of Use:
 Make provisions to ensure, in the event of transient disturbances, that the rated voltage does
not exceed 140% of the peak rated voltage.
 Impact tests on the display were conducted based on Group II values for the low risk of
mechanical danger, in accordance with Table 13 of both EN 60079-0:2012+A11:2013 and
IEC 60079-0 6th
Edition. Install flow computers with displays in areas where the risk of impact
is low.
 Lead Acid Battery, and Solar Panel options are not for use in ATEX/ IECEx applications.
 For Zone 2 installation, take care to install and use the flow computer in such a way that
excludes the danger of electrostatic charge.
 Refer to field replacement guides for replacement of the following parts:
Replacement Part Kit Number
Field Replacement Guide
document number
End Caps 399122-01-0 and
399123016-KIT
D301814X012
HMI Module Display Assembly 399379-01-0, 621627011-
KIT, 399380-01-0,
621627020-KIT
D301816X012
CPU Board 399134018-KIT D301802X012
Termination Board and
Terminal Block
399185-01-1, 400216010-
KIT, 395791014-KIT
395803000-KIT
D301820X012
6-Channel I/O Expansion
Board
400215-01-0 D301819X012
Sensor Assembly Variable Kit Number D301842X012
Coin Cell Battery 395620-03-1 D301854X012
This device was evaluated according to the following standards:
 IEC 60079-0 6th Edition
 IEC 60079-15 4th Edition
 EN 60079-0 :2012+A11:2013
 EN 60079-15:2010

D301782X012
August 2020
100 ATEX Non-Sparking Zone 2 Certifications
Enclosure Rating: IP66
Terminal blocks for the FB1200 Flow Computer have the following characteristics:
 Terminal blocks can accommodate two conductors per channel.
 Stranded or solid wire allowed.
 Torque values: NM 0.5-0.6
 Wire size: 28-12 AWG (0.08 — 3.3 mm2
); (0.32 — 2.05 mm)
Bristol Inc. d.b.a. Remote Automation Solutions
1100 Buckingham Street
Watertown, CT 06795 U.S.A.
Figure C-1: Data Plate — ATEX nA Non-Sparking

D301782X012
August 2020
ATEX Flame-Proof Zone 1 Certifications 101
Appendix D: ATEX Flame-Proof Zone 1
Certifications
The data plate and certain conditions of use are shown below. For full details refer to the Emerson
FB1200 Flow Computer Safe Use Instructions (D301769X012).
Figure D-1: Data Plate — ATEX Ex db Flame-proof

D301782X012
August 2020
102 ATEX Flame-Proof Zone 1 Certifications
Special Conditions of Use / Schedule of Limitations:
 Contact your authorized sales and service representative for any maintenance or repair
beyond the routine maintenance of the FB1200 Flow Computer. Do not alter or disassemble
any of the fireproof joints of the FB1200 Flow Computer.
 The Model 4088 and Model 215 Scalable Pressure Transmitters provided with the FB1200
Flow Computer contain a thin-wall diaphragm. Installation, maintenance, and use must take
into account the environmental conditions to which the diaphragm is subjected. Follow the
manufacturer’s instructions for installation and maintenance to ensure safety during the
device’s lifetime.
 Refer to field replacement guides for replacement of the following parts:
Replacement Part Kit Number
Field Replacement Guide
document number:
End Caps 399122-01-0 and
399123016-KIT
D301814X012
HMI Module Display Assembly 399379-01-0, 621627011-
KIT, 399380-01-0,
621627020-KIT
D301816X012
CPU Board 399134018-KIT D301802X012
Termination Board and
Terminal Block
399185-01-1, 400216010-
KIT, 395791014-KIT
395803000-KIT
D301820X012
6-Channel I/O Expansion
Board
400215-01-0 D301819X012
Sensor Assembly Variable Kit Number D301842X012
Coin Cell Battery 395620-03-1 D301854X012
This device was evaluated according to the following standards:
 IEC 60079-0, 6th Edition
 IEC 60079-1, 7th Edition
 EN 60079-0:2012+A11:2013
 EN 60079-1:2014

D301782X012
August 2020
Index 103
Index
4
4088B transmitter ...................................................72
A
Analog Inputs ..........................................................55
Analog Outputs .......................................................59
ATEX Certification
notes about..................................................99, 101
ATEX Zone 1 ..........................................................101
ATEX Zone 2 ............................................................99
Attaching Mounting Hardware to the Solar Panel.....34
B
Battery
connecting...........................................................33
Bolting Considerations.............................................18
C
Case
rotating................................................................24
Class I Division 1.......................................................95
Class I Division 2.......................................................91
COM1
wiring...................................................................41
COM2
wiring...................................................................44
COM3
wiring...................................................................44
Communication
establishing..........................................................75
through an Ethernet port .....................................76
to a laptop using a wireless connection.................77
to laptop through a serial port..............................76
using HMI module................................................78
with SCADA host ..................................................75
Communication ports
connecting...........................................................41
overview ................................................................8
Configuration software............................................10
Connecting
4088B transmitter................................................72
battery ................................................................ 33
DC power ............................................................ 32
Ethernet.............................................................. 48
I/O....................................................................... 51
ports ................................................................... 41
power.................................................................. 31
RTD..................................................................... 69
solar power ......................................................... 39
Coplanar mounting kit ............................................ 23
Covers
removing .......................................................15, 17
replacing............................................................. 18
CPU........................................................................... 5
D
Daily operation ....................................................... 75
DC power
connecting.......................................................... 32
Digital Inputs .......................................................... 61
Digital Outputs ....................................................... 64
Direct mounting ..................................................... 21
E
Enclosure
explosion-proof..................................................... 5
mounting the ...................................................... 18
End caps
removing .......................................................15, 17
replacing............................................................. 18
Environmental Specifications .................................. 11
Equipment required for servicing the unit ............... 12
Ethernet
connecting.......................................................... 48
Ethernet communications....................................... 76
Ethernet Port
Location .............................................................. 49
Explosion-proof Enclosure......................................... 5
F
FBxWifi.................................................................... 77
Features.................................................................... 3
Figures

D301782X012
August 2020
104 Index
1-1. FB1200 Flow Computer...................................2
1-2. FB1200 Flow Computer (MV or Static Pressure
Version)..............................................................4
1-3. FB1200 Flow Computer (No Integral Sensor) ...5
1-4. Retaining Clamps and Tie Holes for Tamper-
resistant Seals.....................................................6
1-5. HMI Module with LCD......................................9
1-6. HMI Module without LCD ................................9
2-1. FB1200 Flow Computer Dimensions —
Multivariable Sensor Version.............................13
2-2. FB1200 Flow Computer Dimensions (No
Integral Sensor) ................................................14
2-3. FB1200 Flow Computer Dimensions (with Static
Pressure Sensor)...............................................15
2-4. Front End Cap with Retaining Clamp Fitted....16
2-5. Retaining Clamp in Place ...............................16
2-6. Retaining Clamp and Screw...........................16
2-7.Removing or Tightening the End Cap with
Prybar...............................................................17
2-8. Front (left) and Rear (right) End Caps.............17
2-9. Front (left) and Rear (right) End Caps Removal
.........................................................................18
2-10. Transmitter with Coplanar Flange................19
2-11. Transmitter with Coplanar Flange and
Optional Flange Adapters .................................19
2-12. Transmitter with Traditional Flange and
Optional Flange Adapters .................................19
2-13. Bolt Installation ...........................................20
2-14. O-rings (w/ Flange Adapters ........................21
2-15. Traditional Flange Mounting Kit...................22
2-16. Coplanar Mounting Kit ................................23
2-17. Inline Mounting Kit......................................24
2-18. Housing Rotation Set Screws.......................25
2-19. Ground Lug .................................................26
2-20. Terminal Plate .............................................27
2-21.DC Power Connections.................................32
2-22. Connecting the Battery Pack .......................33
2-23. Attaching Mounting Hardware to the Solar
Panel ................................................................35
2-24. Integral mounted solar panel.......................37
2-25. Solar panel remote mounted (pole mounted)
.........................................................................38
2-26. Wiring Solar Power......................................39
2-27. Adjusting Solar Panel Tilt Angle ...................40
2-28. Connecting a Device to COM1 Using RS-23242
2-29. Connecting a Device to COM1 Using RS-
485/422 (4-wire) ..............................................43
2-30. Connecting a Device to COM1 Using RS-485
(2-wire) ............................................................44
2-31. Connecting a Device to COM2 or COM3 Using
RS-232 (with Optional I/O)............................... 45
RS-232 (without optional I/O) .......................... 46
RS-485 (2-wire) (with optional I/O) .................. 47
RS-485 (2-wire) (without optional I/O)............. 48
2-35. Location of Ethernet Port............................ 49
2-36. Ethernet Jumper......................................... 50
3-1. Base I/O on CPU (with optional I/O)............... 52
3-2. Base I/O On CPU (without Optional I/O)........ 53
3-3. Optional 6-channel Expansion I/O Board....... 54
3-4. 4-20 mA AI Wiring (Base I/O with Optional I/O
Module)........................................................... 56
3-5. 1-5 V AI Wiring (Base I/O with Optional I/O).. 56
3-6. AI Wiring (Base I/O without Optional I/O
Module)........................................................... 57
3-7. 4-20 mA AI Wiring (with Optional 6-channel
Expansion I/O Module)..................................... 58
3-8. 1-5 V Analog Input (AI) Wiring (with Optional 6-
channel Expansion I/O Module)........................ 58
3-9. AO Wiring (Base I/O with Optional I/O) ......... 60
3-10. AO Wiring — (Base I/O without Optional I/O)60
3-11. AO Wiring (with Optional 6-channel Expansion
I/O Module) ..................................................... 61
3-12. DI Wiring (Base I/O with Optional I/O)......... 62
3-13. DI Wiring (Base I/O -without Optional I/O) .. 63
3-14. DI Wiring - (with Optional 6-channel Expansion
I/O Module) ..................................................... 63
3-15. DO Wiring (Base I/O with Optional I/O)....... 65
3-16. DO Wiring (Base I/O without Optional I/O).. 66
3-17. DO Wiring (with Optional 6-channel Mixed I/O
Module ............................................................ 66
3-18. PI Wiring (Base I/O with Optional I/O) ......... 68
3-19. PI Wiring (Base I/O without Optional I/O ..... 68
3-20. PI Wiring (with Optional I/O Module) .......... 69
3-21. Wiring for 2-, 3-, and 4-Wire RTD (Units with
Optional I/O).................................................... 70
3-22. Wiring for 2-Wire, 3-Wire, and 4-Wire RTD
(Units without Optional I/O)............................. 71
3-23. Connecting a 4088B Transmitter for a Second
Meter Run........................................................ 72
4-1. Waking up the Display.................................. 78
4-2. Infrared (IR) Button Location......................... 79
A-1. Data Plate (No Battery) — Class I Div 2 Non-
incendive (UL).................................................. 92
A-2. Data Plate (Lead Acid Battery) — Class I Div 2
Non-incendive (UL).......................................... 93

D301782X012
August 2020
Index 105
B-1. Data Plate (No Battery) — Class I Div 1 Explosion
Proof (UL) .........................................................97
B-2. Data Plate (Lead Acid Battery) — Class I Div 1
Explosion Proof (UL)..........................................98
C-1. Data Plate — ATEX nA Non-Sparking.............100
D-1. Data Plate — ATEX Ex db Flame-proof...........101
Flameproof
ATEX Zone 1 certification notes..........................101
FLASH
amount of..............................................................5
G
Grounding ...............................................................26
H
Hazardous locations.................................................11
ATEX Zone 1.......................................................101
ATEX Zone 2.........................................................99
Class I Division 1...................................................95
Class I Division 2...................................................91
HMI module.........................................................8, 78
symbols on display ...............................................80
Housing
rotating................................................................24
I
I/O
configuration and wiring ......................................51
options...................................................................7
Indirect mounting....................................................21
Inline mounting kit ..................................................24
Installation...............................................................11
L
LCD
communicating using ..........................................78
Location of Ethernet port .........................................49
Low Power Mode .....................................................28
M
Memory
FLASH ....................................................................5
SRAM .....................................................................5
Models.......................................................................4
Mounting
direct ...................................................................21
indirect ................................................................21
Mounting kit
coplanar...............................................................23
inline................................................................... 24
traditional ........................................................... 22
N
Non-sparking
ATEX Zone 2 certification notes........................... 99
Notes on Battery Life............................................... 31
O
Operation ............................................................... 75
O-rings.................................................................... 20
P
Physical Security ....................................................... 6
Ports
connecting.......................................................... 41
Power
connecting.......................................................... 31
options.................................................................. 7
turning ON or OFF ............................................... 75
Power Modes .......................................................... 28
Pulse Inputs ............................................................ 67
R
Removing/Replacing End Cap Retaining Clamp....... 16
ROHS2 Compliance................................................. 10
Rotating the housing .............................................. 24
RTD
connecting.......................................................... 69
Run 2 transmitter
connecting.......................................................... 72
S
Safety Labels............................................................. 3
Screen Saver Mode.................................................. 78
Second meter run
connections for ................................................... 72
Security seals ............................................................ 6
Serial communications............................................ 76
Site considerations.................................................. 12
Software Tools ........................................................ 10
Solar panel
adjusting the tilt angle......................................... 40
installing the optional.......................................... 34
integral mounting ............................................... 36
remote mount (pole mount) ............................... 38
remote mounted (pole)....................................... 38
Solar power
connecting.......................................................... 39

D301782X012
August 2020
106 Index
SRAM
amount of..............................................................5
Standard Power Mode..............................................30
Symbols
on LCD display......................................................80
T
Tables
1-1. Memory ..........................................................5
1-2. FB1200 Flow Computer I/O Configurations......7
1-3. Power Options.................................................8
1-4. Serial Ports ......................................................8
2-1. Environmental Specifications ........................12
2-2. Required Tools ..............................................12
2-3. Bolt Torque Values ........................................20
2-4. Typical Power Usage— Low Power Mode ........29
2-5. Typical Power Usage (Standard Power Mode)30
2-6. Solar Panel Tilt Angle.....................................41
3-1. AI Characteristics...........................................55
3-2. AO Characteristics.........................................59
3-3. DI Characteristics ..........................................61
3-4. DO Characteristics........................................ 64
3-5. PI Characteristics.......................................... 67
4-1. Infrared (IR) Buttons on HMI Module............. 80
4-2. Symbols on Display....................................... 80
Terminal plate......................................................... 26
Tools required......................................................... 12
Traditional flange mounting kit............................... 22
Transmitter
connecting for a second meter run ...................... 72
W
Wi-Fi ....................................................................9, 77
Wiring
guidelines............................................................ 15
I/O....................................................................... 51
Z
Zone 2
ATEX certification................................................ 99
Zone1
ATEX certification.............................................. 101

D301782X012
August 2020
For customer service and technical support,
visit www.Emerson.com/SupportNet
Global Headquarters,
North America, and Latin America:
Emerson Automation Solutions
6005 Rogerdale Road
Houston, TX 77072 U.S.A.
T +1 281 879 2699 | F +1 281 988 4445
www.Emerson.com/RemoteAutomation
© 2018-2020 Remote Automation Solutions, a business unit of Emerson Automation
Solutions. All rights reserved.
This publication is for informational purposes only. While every effort has been made to ensure
accuracy, this publication shall not be read to include any warranty or guarantee, express or
implied, including as regards the products or services described or their use or applicability.
Remote Automation Solutions (RAS) reserves the right to modify or improve the designs or
specifications of its products at any time without notice. All sales are governed by RAS terms
and conditions which are available upon request. RAS accepts no responsibility for proper
selection, use or maintenance of any product, which remains solely with the purchaser and/or
end-user.
Europe:
Unit 1, Waterfront Business Park
Dudley Road, Brierley Hill
Dudley DY5 1LX UK
T +44 1384 487200 | F +44 1384 487258
Middle East/Africa:
Emerson FZE
P.O. Box 17033
Jebel Ali Free Zone — South 2
Dubai U.A.E.
T +971 4 8118100 | F +971 4 8865465
Asia-Pacific:
1 Pandan Crescent
Singapore 128461
T +65 6777 8211| F +65 6777 0947

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