EMS-Series Specification 2

Product Features:

Microcontroller based multifunction AC Energy Meter.
Accuracy Class1.0 / (Class 0.5 calibration on Request).
CT /PT (Pri/Sec) Programmable.
Digital Measurement.
IEC 62052-11 IEC 62053-21 IEC 62053-22 IEC 62053-23.
RS 485 Serial Port with Modbus RTU Output.
Flush / Panel Mounting .
96 x 96 mm DIN Mounting.
Auto Scroll / Hold Facility.
Internal Resettable fuse for protection of device against voltage fluctuations.

Model	EMS-03	EMS-09
Function	Kilo Watt Hour Meter	Basic / Energy Meter
Rated voltage (Aux. Supply)	85 to 270 V AC / DC
Rated frequency (Aux. Supply)	50 / 60 Hz +/- 5% for AC only
Power consumption	< 5 VA / 1W
Input voltage	3 Phase 4 wire (R,Y,B,N ) Range: 415 V AC (-40% to +20%) 110 V AC (-40% to +20%)
Input current	Current inputs (AR, AY, AB) 1A to 5A (to 200%)
Input Frequency	50 Hz, ± 2%
Burden	< 0.2 VA per Volts / Amps input
Accuracy	Class 1 / Class 0.5
Recovery Time	2 sec minimum
Communication	RS-485 MODBUS RTU Protocol
Meter Constant	3200 Pulses / KWh	3200 Pulses / KWh
CT Ratio Selectable	Primary 1 to 5000Amp max. Secondary 1 to 5A.
PT Ratio Selectable	Primary 110 to 999KV Secondary 110 to 500V
Device ID	1 – 247
Baud rate	2400, 4800, 9600,19200bps
Pulse Output	N.A
Protection of configuration settings	User settable Password Ranging from 0001 to 9999
Ambient Temperature	Operation: -10°C to + 55°C (14°F to 131°F) Storage: -25°C to + 80°C (-13°F to 176°F)
Humidity	Up to 95% RH @ 40°C
Insulation resistance	>100M ohms @ 500V DC
Dielectric strength	2.5 KV AC, 50Hz for 1 minute (Between current carrying & non-current carrying parts)
Electrical connection	Screw type terminals with self lifting clamps.
Dimension	96 X 96 X 117 mm (W X H X D)

Connections:

EMS-Series Specification 2 block diagram

Dimensions:

Accessories:

Instruction Manual—–1No
Calibration certificate for energy meter—–1No
Side Anchors —– 2 Nos

Hints on correct use:

Tools and Fasteners Kindly use star – type screw driver for tightening the screws.

NOTE: Installation should include a disconnecting device, like switch or circuit breaker, with clear ON/OFF markings, to turn-off the auxiliary supply(control power).The disconnecting device should be within the reach of the equipment and the operator.

Caution:

Apply appropriate personal protective equipment(PPE) and follow safety work practices
Only qualified electrical workers should install this equipment. Such work should be performed only after reading this entire set of instructions.
If the equipment is not used in the manner specified by the manufacturer, the protection provided by the equipment may be impaired.
NEVER work alone.
Turn OFF all power supplying the energy meter and the equipment in which it is installed before working on it.
The successful operation of this equipment depends upon proper handling, installation and operation. Neglecting fundamental installation requirements may lead to personal injury as well as damage to electrical equipment or other property
NEVER bypass external fusing.
NEVER short the secondary of PT
NEVER open circuit a CT; use the shorting block to short circuit the leads of CT before removing the connection from energy meter.
Before performing Dielectric or Megger testing on any equipment in which the energy meter is installed, disconnect all the input and output wires to the energy meter. High voltage testing may damage electronic components contained in the energy meter.
The energy meter should be installed in a suitable electrical enclosure
EAPL is not responsible for any consequential damages arising out of use of our products, though the technology is cautiously chosen and implemented like any other well designed good electric meter.