User Manual_NOKEE LCD Display_King-Meter Technology Co.,Ltd

KING-METER SPECIFICATIONS OF NOKEE V1.0
Contents
1 Preface··············································································· 1
2. Appearance and dimensions··········································· 2
2.1 Main Materials and Color···································2
2.2 Materials and Colors of Buttons··························3
3 Precautions for Use ·························································· 4
4. Overview of Functions and Indications························· 5
4.1 Overview of Functions ········································5
5. Installation Instructions ················································· 7
5.1 Installing onto handbar·······································7
6. Normal Operations ························································· 8
6.1 Power on/off ····························································· 8
6.2 Displaying Running Speed······································ 9
6.3 Setting Push Cruise ··············································· 10
6.4 Switching Headlight ·············································· 11
6.5 Battery Indication·················································· 12
6.6 Indication of Miles················································· 13
6.7 Error Code Display················································ 14
7. Instrument Settings······················································· 15
I

7.1 Settings before Riding·······································15
7.2 Setting of Metric/Imperial System·····················16
7.3 Maximum Speed Limit Setting··························17
7.4 Wheel Diameter Setting ····································17
7.5 Exit Settings ·····················································18
8. FAQ ················································································ 19
9. Barcode of the Meter ···················································· 19
10. Quality Assurance and Scope of Warranty··············· 20
10.1 Warranty Information：·································20
10.2 The following circumstances will not be covered by
warranty. ·······························································20
11. Wiring Diagram··························································· 21
11.1 Wire Sequence of Standard Plug Connectors ···21
12. Change of Version ······················································· 22
II

1 Preface
Dear users,
Please read through the instructions of NOKEE meter carefully
before using it to ensure a better performance of your e-bike. We
will use the most concise words to show you all detailed steps for
using it, including the steps from installation and setting of
hardware through normal use of the instrument. The instructions
will also help you eliminate the confusion and malfunctions that
you may encounter.
1

2. Appearance and dimensions
2.1 Main Materials and Color
NOKEE is mainly made of aluminum alloy and
toughened glass. The shell of display is made of
black matte material, which can be normally
used in the temperature ranging from -40°C to
80°C, with good mechanical property.
The dimensions of NOKEE are shown below.
(unit: mm)
Appearance and dimensions (with 31.8mm gripper)
2

Appearance and dimensions (with 22.2mm gripper)
2.2 Materials and Colors of Buttons
The main body of buttons is made of PC material while keys on
them are made of soft silica gel, appearing black in general. There
are three keys, namely Mode , Up , and Down .
Appearance and dimensions of N3 keys
3

3 Precautions for Use
Take care when using the meter and do not connect /
disconnect it with power on.
Try to avoid bumping or colliding the meter.
Avoid direct contact with water.
The parameters and settings of the meter are not expected
to be modified by the user; otherwise, your riding
experience will be affected.
The meter should be delivered for repair as soon as
possible in case of malfunction.
4

4. Overview of Functions and Indications
4.1 Overview of Functions
NOKEE provides you with a number of functions and indications
to satisfy your demands for riding. The indications on NOKEE
include:
◆Battery indications;
◆ Speed indication (including real-time speed, maximum
speed and average speed);
◆Miles indication (including indicators for single-trip miles
and total miles);
◆Indication of push cruise;
◆A number of settable parameters, such as wheel diameter,
speed limit, setting of battery, a number of PAS levels,
switching headlight, automatic shutdown, as well as burning
of external program through dis-pro.
The above functions are only existing functions of the
product, which is subject to expansion according to
customer’s demands, such as settings of boosting
parameters, power-on password setting and controller
current limit setting.
5

4.2 Indications
Normal display of NOKEE
6

5. Installation Instructions
Open the gripper to clip the meter onto handlebar. Adjust it until
appropriate angle of view is obtained, then tightly screw the gripper
to a proper torque, which is advised to be 1.5N.M.
5.1 Installing onto handbar
Open the gripper as
per the direction of
the arrow
Adjust the angle
and tighten the
screw.
Installation finished.
7

6. Normal Operations
6.1 Power on/off
Press the key for several seconds to initiate the meter
and supply power to the controller. Press the key for
several seconds while power is on to cut off the power of
e-bike. While power is off, the meter will no longer
consume power of the battery and the leakage current is
less than 1uA.
The meter will automatically shut down if the e-bike is
suspended for over 10 minutes.
8

6.2 Displaying Running Speed
Interfaces displaying running speed
Press the key
briefly to enter speed
display interface, and
briefly press the
key again to
respectively display
SPEED (real-time
speed), AVG (average
speed) and MAX
(maximum speed), as
shown in the figure:
9

6.3 Setting Push Cruise
Push cruise interface
Push cruise is only for pushing the e-bike; do not use the
function when you are riding the bike.
While the power of meter is
on, press for 3 seconds
to enable push cruise for
the e-bike, as shown in
right figure. The e-bike
will runs at a constant
speed of 6km/h. “Walk 1”
is displayed on screen.
10

6.4 Switching Headlight
Headlight switching interface
If the e-bike has no headlight function, the symbol
will not be displayed.
Long press to display the
symbol , as shown in the right
figure, which indicates the headlight
is on.
Long press again to switch off
the headlight.
11

6.5 Battery Indication
When the battery has sufficient voltage, all the five lines will be
displayed on LCD. When only one line is displayed, it indicates
low battery, requiring prompt recharging.
The battery symbol as shown in the right figure
indicates low battery and requires prompt recharging!
12

6.6 Indication of Miles
Press the key briefly to switch among indications of mile
information in the following order: TRIP A (single trip miles A)
→TRIP B (single trip miles B) →ODO (accumulated miles)
→RMAIN (remaining miles) →TRIP A (single trip miles A). The
schematic view is shown below:
13

6.7 Error Code Display
Attached List 1: Definitions of error codes
Error codes Definitions
21 Current abnormality
22 Throttle abnormality
23 Missing phase on motor
24 Motor Hall signal abnormality
25 Brake power-off sensor abnormality
30 Controller/instrument communication abnormality
Malfunctions in electrical control
system of the e-bike will trigger
automatic display of ERROR on the
meter with corresponding error codes.
See Attached Table 1 for definitions of
detailed error codes.
Only after trouble shooting
will the error code exit. It is not
possible to run defective e-bike.
14

7. Instrument Settings
7.1 Settings before Riding
After power on, the instrument displays real-time speed by default.
Press and for 3 seconds, to enter setting state of unit/speed
limit/wheel diameter.
Briefly press to switch display information in the following
order, ｓｔ¹ switch between metric and imperial system (Km/h－
Mp/h)→ｓｔ² speed limit setting (unit: Km/h—Mp/h)→ｓｔ³
wheel diameter setting (unit: inch)→ｓｔ¹ switch between metric
and imperial system (Km/h－Mp/h).
15

7.2 Setting of Metric/Imperial System
In setting state, ST¹ stands for metric system selection. Briefly press
or to switch between metric (Km) and imperial unit (Mp).
Briefly press , to confirm the setting and enter ST² setting
interface.
16

Briefly press or to set maximum
limit speed, which is from 20 Km/h to
40Km/h. Briefly press to confirm and
enter the wheel diameter setting
interface. The maximum limit speed of
factory setting is 25Km/h.
Maximum limit speed is subject to
customization depending on
demands.
7.3 Maximum Speed Limit Setting
7.4 Wheel Diameter Setting
Briefly press and to
select corresponding wheel
diameter, to guarantee accuracy
of speed display and mile
display on the meter. It can be
set to be 16, 18, 20, 22, 24, 26,
28 and 700C. The factory
default setting of wheel
diameter is 28inch. Briefly
press to confirm and enter
running speed display.
17

7.5 Exit Settings
Under setting state, briefly press (no longer than 2 seconds) to
confirm and save current setting. Press and hold it (at least for
2 seconds) to confirm and save current setting, and exit current
setting. Press and hold it (at least for 2 seconds) to cancel current
operation and exit without saving current settings.
Setting interface will exit automatically if the meter is
suspended without any operation for 1min.
18

8. FAQ
Question: why the meter does not start up when the button is
pressed?
Answer: check and be sure the battery switch is on or check
the outgoing cable for broken wires.
Question: how to deal with the malfunction code displayed on
the meter?
Answer: get your bike at repair station in a timely manner.
9. Barcode of the Meter
In the number 513NOKEE36L0376S4001 below the instrument
barcode, 513 refers to the customer code, NOKEE the product
name, 36L the voltage of product battery, 0376 the drawing No.,
and S4001 the software version No..
19

10. Quality Assurance and Scope of Warranty
10.1 Warranty Information：
 Any malfunction caused by quality defects of the product
during normal use will be covered by limited warranty of the
company within warranty period.
 The warranty period is 24 months since the meter is delivered
from the factory.
10.2 The following circumstances will not be covered by
warranty.
 Opened enclosure
 Damaged plug connector
 Scratched or damaged enclosure after delivery
 Scratched or broken lead wires of the meter
 Fault or damage due to force majeure (such as fire and
earthquake) or natural disasters (such as lightning stroke)
 Expired warranty
20

11. Wiring Diagram
11.1 Wire Sequence of Standard Plug Connectors
To controller The end on meter For joint
Table: wire sequence of standard plug connectors
Standard wire
sequence
Color of standard
wire
Function
1 Red (VCC) Power cord
2 Blue (K) Power supply control wire
of controller
3 Black (GND) Grounding wire
4 Green (RX) Data receiving wire
5 Yellow (TX) Data transmitting wire
Note: water-proof plug connectors are used for the
wires of some products, so the users cannot see the
colors of the enclosed wires.
21

12. Change of Version
This Users Guide is prepared for general-purpose software (V1.0)
of Tianjin King-Meter Electronic Co., Ltd. The version of software
used on some bikes may be slightly different, which should depend
on the actual version in use.
22

User Manual_NOKEE LCD Display_King-Meter Technology Co.,Ltd

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