Trinity ENTITY User manual

TRINITY
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Entity –Operational Manual
USER’S MANUAL
ENTITY
Energy Meter
This document contains the latest technical information about ENTITY which is a
micro-controller based Energy Meter. The unit is tested against latest "MTE"
Standard Model PRS 1.3 having basic accuracy of 0.02%, traceable upto
International Standards derived using appropriate ratio techniques.
The product, Entity is sophisticated electronic equipment, and the user is advised to
read this User’s Manual carefully before attempting to install or operate the
equipment.
Published on:05/03/2019
Document Version: 1.1

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Entity –Operational Manual
Warranty statement
Trinity warrants to the original retail purchaser of the Trinity product enclosed with this
limited warranty statement that the product, if purchased new and used in the India
conforms to the manufacturer’s specifications and will be free from defects in
workmanship and materials for a period of one year from the date of original
purchase, unless expressly stated otherwise by Trinity, in a written format.
Should your Trinity product prove defective during the warranty period, please bring
the product securely packaged in its original container or an equivalent, along with
proof of the date of original purchase, to our Trinity Dealer or Factory. You are
responsible for all costs (shipping, insurance, travel time) in getting the product to the
service location. Trinity will, at its option, repair or replace on an exchange basis the
defective unit, without charge for parts or labor. When warranty service involves the
exchange of the product or of a part, the item replaced becomes Trinity property. The
replacement unit may be new or refurbished to the Trinity standard of quality, and at
Trinity’s option, the replacement may be another model of like kind and quality.
Trinity’s liability for replacement of the covered product will not exceed the original
retail selling price of the covered product. Exchange or replacement products or parts
assume the remaining warranty period of the product covered by this limited warranty.
What This Warranty Does Not Cover:
This warranty does not apply to refurbished or reconditioned products. This warranty
covers only normal use in India. This warranty does not cover damage to the Trinity
product caused by parts or supplies not manufactured, distributed or certified by
Trinity. This warranty is not transferable. This warranty does not cover third party
parts, components or peripheral devices added to the Trinity product after its
shipment from Trinity. Trinity is not responsible for warranty service should the Trinity
label or logo or therating label or serial number be removed or should the product failto
be properly maintained or fail to function properly as a result of misuse, abuse,
improper installation, neglect, improper shipping, damage caused by disasters such
as fire, flood, and lightning, improper electrical current, interaction with non-Trinity
products, or service other than by an Trinity Authorized Service.
The warranty and remedy provided above are exclusive and in lieu of all other
express or implied warranties including, but not limited to, the implied warranties of
merchantability or fitness for a particular purpose. In the event, the remedies above
fail, Trinity’s entire liability shall be limited to a refund of the price paid for the Trinity
product covered by this limited warranty. Except as provided in this written warranty,
neither Trinity Energy Systems Pvt. Ltd. nor its affiliates shall be liable for any loss,
inconvenience, or damage, including direct, special, incidental, or consequential
damages, resulting from the use or inability to use the Trinity product, whether
resulting from breach of warranty or any other legal theory.

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Entity –Operational Manual
Contents
Introduction …………………………………………………………………................. 4
The Main Features Available in This Model …………………………………. ....... 4
Technical Specifications …………………………………………………………….. 5
Installation and Commissioning …………………………………………………… 6
Connection Scheme ……………………………………………………………….. .. 7
Operational Details
……………………………………………………………………. 8
Programming Mode …………………………………………………………….. ...... 8
Setting CT-Primary …………………………………………………………………... 8
Setting CT-Secondary ……………………………………………………………….. 9
Setting Device ID …………………………………………………………………….. 9
Run Mode …………………………………………………………………………… ... 10
Resetting Energies…………………………………………………………………..... 10
Communication.................................................................................................... 11
Appendix ................................................................................................................... 11

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Entity –Operational Manual
Introduction
Entity is based on proven microcontroller technology with front end ASICs, resulting in
compact and accurate energy metering. The accuracy of the meters is maintained
even under severely distorted waveform conditions which occur due to harmonics in
the system.
Entity is a low cost effective, easy user interface and can measure accurate KWh
energy that displays on 16X1 LCD. The unit supports only for three phase four wirein
an electrical installation.
TheMain Features Available in This Model:
• Class1.0S accuracy as per IS13779
• Class 0.5S accuracy also available
• Compact 96 x 96 x 55 mm enclosure
• Microcontroller based with true RMS measurement
• 16X1 LC display
• Measurement of KWh,KVAh and KVARh Energy (3 Energy)Variant available
without RS485.

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Entity –Operational Manual
Technical Specifications
Parameter
Type
Name
Statistics
INPUT
Supply
Three Phases and Neutral of a 3P4W system
Voltage
Direct Voltage Input : Up to 300V L-N or 500V L-L
Burden : 0.5VA
Current
Secondary Current Input : 5A or 1A (Site Selectable)
CT Primary : Site Selectable
Range of Reading : 5 –5000A
Burden : < 1.0VA
Overload (Through CT) : 5A CT = 6A RMS Continuous
1A CT = 1.2A RMS Continuous
(Whole Current) : 120% of Imax continuous
Power Supply
Wide operating Voltage SMPS : 80 VAC - 270 VAC, 50-60 Hz.
MEASUR
EMENT
Energy
Total Active Energy
(KWh)
Range of Reading : 0 to 9999999.9 KWh
Accuracy : 1.0S as per IS13779.
Dimensions
Bezel
96 X 96 mm
Panel Cutout
92 X 92 mm
Depth of installation
55 mm
Display
16X1 LCD
Operating temp
10°C to 50°C
Min. Operating Current
0.4% OF CT-Secondary

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Entity –Operational Manual
Installation and Commissioning:
To install the Unit, proceed the following instruction:
1.
Push the unit into the panel and mount using the clamps provided.
2.
Connect the Auxiliary supply (80-270 VAC) to the terminals marked P and N.
3.
Connect the three phases with the phase sequence being R, Y, B to the
terminals marked U1, U2, and U3 respectively and then, connect the neutral
wire to the terminal marked, U4. Make sure the three phases coming to the unit
come through control fuse of 1.0A rating. This will protect the electronic inside
from damage due to sever overvoltage or phase fault in the system.
4.
Connect the two wires from R-phase CT to the terminals marked M1 and L1
such that S1 goes to the terminal marked M1. Connect the two wires coming
from the Y-phase CT to the terminals marked M2 and L2 such that S1 from the
CT goes to terminal marked M2. Connect the two wires coming from B-phase
CT to the terminals marked M3 and L3 such that S1 from the CT goes to the
terminals marked M3.
5.
Supply power to the three phases. The unit will display power receiving
information such as ““---TRINITY----”,CT Ratio, Device Id(Only In the KWh
variant)” thenit comes into Run Mode.
6.
First the CT-primary should be set, and then enters into Run Mode. Refer
Operational Details in the next section.
7.
Now the unit is ready for operation.

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Entity –Operational Manual
Connection Scheme
Note: A+ & B- only applicable for Rs 485 Variant

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Operational Details:
The energy based Entity is a versatile meter with all the features needed to
implement for a robust electrical system. It can be configured to suit for the
measurement of energy. There are two types of operational Mode in this unit such as
Programming Mode and Run Mode.
After supplying power (80 to 270 VAC), the unit will display with power receiving
information such as “---TRINITY ”, CT Ratio, Device Id (Only In the KWh variant)
and then enters into Run Mode by default with the following display.
Programming Mode:
The unit has programmable parameters CT-Primary, CT Secondary and Device Id and
is also easy user interface by pressing three keys such as, , and
Setting CT-Primary:
The CT-Primary is freely programmable from 5 to 5000 A of which 5 to 200 can be
set with the steps of 5 and 200 to 5000 with the steps of 25, and hence the CT
setting falls onto the standard rating of user’s desire. The CT setting thus gives the
true current value for CT operated meter in your electrical installation system.
To set the CT-Primary, proceed the following instructions.
1.
In Run Mode display, press key for about 4 to 5 seconds continuously. The
unit will enter into Programming Mode with the following display.
2.

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3. Press key. Immediately, ”P ” starts blinking which shows that CT-Primary
can now be set. Set the desired CT-Primary by pressing and keys and
then press to confirm the setting.
4. Now,the unit will reset and return into Run mode
Setting CT Secondary:
The CT-Secondary can be set to either 5 or 1.
To set CT-Secondary, Proceed the following instruction:
1. In the Run Mode display,Press PROG/ENTR key for about 4 to 5 seconds.The
unit will prompt CT Primary and then,press "UP" key till you get display CT
Secondary with following display.
2. Press PROG/ENTR key again, Immediately, P starts blinking which indicates
that the parameter can now be changed. Set the parameter value by pressing
"UP" and "DOWN" keys untill the desired value is received.
3.
Press PROG/ENTR key to confirm the parameter value. Hence, the unit will
restart and return into Run Mode
Setting Device Id
The unit also supports RS485 communication port and it should therefore be set the
Device ID from 1 to 255 for the communication of it.
To set Device ID, proceed the following instruction:
1.
In the Run Mode display,Press PROG/ENTR key for about 4 to 5
seconds.The unit will prompt CT Primary and then,press "UP" key till you get
display Device IDwith following display.

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2. Press PROG/ENTR key again, Immediately, P starts blinking which indicates
that theparameter cannow be changed. Set the parameter valueby pressing "UP"
and "DOWN" keys untill the desired value is received.
3.
Press PROG/ENTR key to confirm the parameter value. Hence, the unit will
restart and return into Run Mode.
Run Mode
In the Run Mode, KWh energy calculated by the unit is displayed on a 16X1 LC
display such as shown below.
Resetting Energies
The Active Energy (KWh), can be reset by pressing key and key
simultaneously for about 8 seconds. Hence, the unit will restart and return into Run
Mode displaying zero energy.

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TRINITY
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Communication
RS485 CONNECTION
The industrial standard RS-485 communication port option is also available ENTITY.
This option makes it possible for a user to select ENTITY to provide power and
energy information into a variety of existing or new control systems and
communication networks such as EMS/PLC/SCADA.
Modbus RTU on RS485 Port
In order to download live data for the various system parameters, user can use
RS485 connecting to SCADA or EMS software. ENTITY supports an RS485
port with MODBUS-RTU protocol. The station ID for every meter is site
selectable. The data which can be read using MODBUS query # 3 (Read Holding
Registers) is provided inan address map, with the applicable multiplication factors,
vide Appendix.
Communication line parameters: 9600/8/N/1.
The register map is described below. All addresses are in decimal. Parameter is
Unsigned long format. If illegal address is sent in the query or the host tries to
read more than 2 bytes of data in one query, exception message is generated.
The parameters name, address and multiplication factor are also mentioned.
Appendix
ENTITY ADDRESS MAP
Address
Parameter
MF
3030
KWh
X100

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P.O No. : …………………………………………………………………
Customer : …………………………………………………………………
Sr. No. : …………………………………………………………………
Routine and function tests conducted to relevant standards and our
Specifications/Literature/O & M Manual.
Traceability: tested against latest "MTE" Standard Model PRS 1.3 having basic
accuracy of 0.02% traceable upto International Standards derived using appropriate
ratio techniques.
Result of Test : …………………………………………………………………
Remarks : …………………………………………………………………
Test engineer : …………………………………………………………………
Date : …………………………………………………………………

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