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EMS-Series Multi-Function Meters 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. Protection from dust and water as per IP-51. Specifications Model EMS-01 Rated voltage (Aux. Supply) 85 to 270 V AC / DC Rated Frequency 50 / 60Hz ± 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%) 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 / KVArh CT Ratio Selectable Primary 1 to 5000A 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 Active Energy / Reactive Energy Poles 1 - 28 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) Input Frequency 50 Hz ± 2% Electrical connection Screw type terminals with self lifting clamps. Dimension 96 X 96 X 117 mm (W X H X D) Connections 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.