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in-built IEC 61850 support

Prometer 100, series of next generation energy meter designed for power transfer points requiring precise measurements and revenue transactions. Flexible and modular communications ensure integration with AMR / AMI / SCADA systems and upgrade to future sub-station automation systems. 4 quadrant energy measurement allows monitoring of generation, transmission and distribution loads.


  • Energy transfer measurement and reconciliation
  • Power plants, feeder monitoring, grid substations, wind turbines, renewable/PV, industrial and commercial premises
  • On-line monitoring of energy exchange at various interface points
  • Energy accounting, automation and system integration


  • Minimal integration cost through multiple communication interfaces
  • Suitable for diverse applications through wide-range voltage, current and auxiliary supply inputs
  • Support of industry standard DLMS and MODBUS meter reading protocols
  • Meter reading and display viewing under power outage
  • Field replaceable hot pluggable communication modules
  • Multi-lingual support on display (Swedish, German, English, French, Spanish and Italian)


  • 0.2S/0.5S accuracy for active and reactive measurement
  • Wide-range dual auxiliary supply with options for AC/DC and self-power (VT powered)
  • Power quality features including THD, sag, swell, voltage unbalance and interruption recording
  • Dynamic error compensation for CT/VT
  • Transformer/Line loss adjustment (Copper and Iron losses)
  • Intuitive graphical display including vector diagram, wave forms and bar chart for consumption
  • Remote configuration of communication ports
  • Simultaneous DLMS and MODBUS over Ethernet port
  • Support of meter reading / display over field replaceable battery
  • In built IEC61850 along with RS232/RS485 and Ethernet ports in a single product & capability of simultaneous communication through all these ports
  • Dual loggers for energy and instantaneous parameters
  • Flexible time-of-day tariff, maximum demand support, DST (Daylight saving time) support with automatic billing dates
  • Meter cover and terminal cover open detection
  • RS232 port compatible with meter-powered modem


Connection type HV3/HV4/LV4
Measurementvoltage range 57.7 V to 240 V (L-N), 100 V to 415 V (L-L) ±30%
Measurement current range 1-10 A (configurable)
Frequency 50/60 Hz ±5%
Accuracy Class 0.2S and class 0.5S
Maximum overload Voltage 1.5 times of nominalvoltage continuously
2 times of nominalvoltage for 0.5 second
Maximum overload current 1.5 times of Imax continuously
10 times Imax for 1 second
20 times Imax for 0.5 second
Burden with auxiliary / Self (VT) powered Current circuit: < 0.1 VA/phase @ 1A, < 0.5 VA/phase @ 5A
Voltage circuit in case of Aux power: < 0.1 VA/phase
Voltage circuit in case of internal / self power: < 6 VA/phase
Standards IEC 62052-11, IEC 62053-22, IEC 62053-23, IEC 62053-24, IEC 62056-52, IEC 61010-1, IEC 61010-2-030, CE, MID (EN 50470-1, EN 50470-3)
Ingress protection IP54
Operating temperature -10 °C to + 60 °C
Limit range of operation -25 °C to + 70 °C
Storage temperature -40 °C to + 80 °C
Temperature coefficient <0.3%/10C for class 0.5
Temperature coefficient <0.1%/10C for class 0.2
Dimension 300mm x 200 mm x100 mm (H xWx D)
Weight 2 kg (+/- 200 gm)
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