Gprs based meter and data logger

GML-3
GPRS BASED METER AND LOGGER
THREE PHASE METER WITH INBUILT DATA LOGGER
© Embuilt Technologies
Visit us at www.embuilt.com
Or
For see live demo of energy monitoring system logon to
www.emdata.in

GML-3
•Three phase energy
measurement
•GPRS based logging
•No need of computer for logging
•Accuracy class 0.2
•All energy parameter will display
on LCD for clear view
•Multifunction meter
•Can view and set real date and
time.
• Can store 100 continuous
events
• Sent SMS on event and alarm
• Upload event information on
server with its date and time
• Input voltage range is 10V to 250
V (Normally) and 999KV with PT.
• Current range is 10 mA to 5 A
normally and 999A with CT
•Normal sim card of any provider is
used

Introduction
 GML-3 is GPRS Based three phase meter with inbuilt data
logger.
 It measures three phase electrical parameters and logs it
on server.
 It has inbuilt GSM interface so you don’t need computer
for data logging.
 It can be accessed by using buttons on it or by visit
www.emdata.in .
 It has also interfacing with temperature and humidity
sensor.

Features
 Anywhere anytime online data access by visit
www.emdata.in .
 Data is secure on our server.
 Meter accuracy is 0.2 .
 Direct SMS and E-mail alerts for alarm notification and data
notification.
 Unlimited data storage on server.
 SD Card back for network outage so your data doesn’t lost.

Analysis of graph data

Voltage Graph
© embuilt technologies
In above graph we can see the voltage fluctuation this may be due to use external
energy source like generator or ups or main line. If from main line in use then we
can examine that the load at that time is high on the locality.

Voltage Analysis
 The above graph shows the values of average voltage.
 You can see the voltage fluctuations and also the
values at any point.
 The voltage fail is also shown so you will know what is
the trend of voltage presence at these time.
 Set alarm and event for voltage high and low values.
 You will get notified by SMS and EMAIL for events and
alarms.

Current Graph
In above graph the variation of load is shown. The devices which are running are
taking different power at different time it may be because of any machine fault or the
load on the machine is vary.

Current Analysis
 The previous graph shows the total current variations
in three phase.
 The current fluctuation is shown which shows the load
current consumption.
 In graph on 15:45 current value is high which shows at
that time maximum load is present.
 You can limit the current value by switch off some
appliances when current exceeds the limit.
 Set alarm to limit value of current and get notified by
SMS and EMAIL.

Watt Graph
This shows the load pattern. If GML-3 used at any critical machine the sudden
high change in wattage shows the external load on machine is high or machine has
any fault. Some machines have load limit so this will be shown here.

Watt Analysis
 Previous graph shows the real time and previous time
energy consumption in wattage.
 Wattage changes continuously which shows that
equipments are not taking the full energy.
 You can manage the energy wastage by turn off some
equipments or using equipments which takes less
power.
 Example using laptops besides computer may save
electricity, turning off printers and equipments which
are not in use.

Power Factor Graph
The above graph shows the good PF, means there is very less power wastage. The idle
PF is 1. but the good power factor for real application is around above 0.8 . If device
with low power factor used ,it will take higher current and require larger wire. For
linear loads such as induction motor PF can be optimized using network of capacitor
and inductor.

Power Factor Analysis
 Previous graph shows the power factor which indicate
the difference between actual power used and waste
power in form of reactive energy.
 PF should above 0.8 when load is on for industrial
sector otherwise penalty can be put by Kesco.
 Graph shows the power factor is around 0.9 it shows
very less power is wastage.
 You can improve power factor using APFC panel.
 Can set alarm for low PF ,so you will be notify by SMS
and EMAIL.

Frequency Graph
The graph shows the frequency variation. In India equipments are made for 50 Hz
supply. So sources with high frequency are not compatible in India. In the above graph
frequency is around 50 Hz which variation is low , so it is good for equipments to get
power in form of voltage and current.

Frequency Analysis
 The frequency of voltage should be around 50 Hz.
 It shows the frequency is around 50 Hz which is good
for equipments and also heavy machines.
 Some energy sources may give voltage at low frequency
so you will know at what frequency they are producing
voltage.
 Can set alarm for frequency so you will be notified by
SMS and alarm.

How to use energy data
 The data in excel file can be downloaded on
www.emdata.in .
 This shows the energy data of GML-3 with sample rate
of 1 minute.
 You can find maximum, minimum, and also average
values for your parameter.
 Can generate graph.
 Calculate the minimum voltage time, maximum
voltage time and also the other parameters filter
values.

 Two files will be generated online which you can
download.
 First file contains voltage ,current, wattage, pf and
frequency.
 Second file contains KWh, KVAh, KVARh.
 All values are with date and time.
 Can be used with other softwares to generate different
charts.

Event Analysis
 Shows every event on www.emdata.in .
 Event will be updated on real time.
 Events are logged with date and time.
 Unlimited events can store on server.
 GML-3 meter itself save 100 latest events in his
memory.
 Set production rate or machine fault according to
events.

Advantage of GML-3 over manual
system
 GML-3 measures data and logs data at fix time.
 It can be installed at any place where human can not
go to take readings.
 No mistake in take reading ,but human can mistake to
take reading, such as taking reading from a
thermometer scale.
 It can easily generate graph.

Benefits of GML-3 over Traditional
EMS systems
 The cost of GML-3 is low comparison to other EMS
systems.
 The GSM technique is used for data logging, so no wire
is used to access data.
 No need of computer running for 24 hours for data
logging.
 Installation complexity is reduce, so anybody can
install it at any location.
 Can access from anywhere in the world.

Applications
 In industries for critical machine monitoring system.
 Energy management system.
 Cold chain monitoring.
 Weather station.
 small and medium scale energy monitoring.
 Energy saving field.
© embuilt technologies

Gprs based meter and data logger

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