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Product at a glance

precision metering series

Apex 200, 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 and display viewing under power outage
  • Field replaceable hot pluggable communication modules


  • 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

  • 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
Measurement voltage range 100 V to 415 V (L-L) ±30% 3P 4W, 100 V to 240 V (L-L) ±30% 3P 3W
Measurement current range 1-10 A (configurable)
Frequency 50/60 Hz
Accuracy Class 0.2S / class 0.5S
Maximum withstand Voltage 1.5 times of nominal voltage continuously
2 times of nominal voltage for 0.5 second
Maximum withstand current 1.5 times of Imax continuously
10 times Imax for 1 second
20 times Imax for 0.5 second
Standards IEC 62052-11, IEC 62053-22, IEC 62053-24, IEC 62056-52
Ingress protection IP54
Operating temperature -25°C to + 60°C
Limit range of operation -25°C to + 70°C
Storage temperature -40°C to + 80°C
Temperature coefficient <0.3%/100C (UPF) for class 0.5
Temperature coefficient <0.1%/100C (UPF) for class 0.2
Dimension 292.7 x 201.5 x 105.2 mm (± 0.5 mm) (H x W x D)
Weight 2 kg (+/- 200 gm)
Power supply Dual / Single auxiliary supply
Range: 60-240 V AC/DC (±20%), Burden: <10VA *
Optional range: 24-48 V DC (±20%),Burden: <10VA*
Display Graphical, with green backlight
extended temperature range -200C to +700C
Size: 69 x 39 mm (H x W), 128×80 pixels
Pixel size: 0.5 mm²
Max display character size 10 x 5 mm (H x W)
Battery Field-replaceable battery for RTC backup and meter reading/display
viewing during power outage
Optical 1107 port Protocol: DLMS, Baud rate: 1200 – 19200 bps, Half duplex
RS232 port Built-in supply of 4 V @ 550 mA, Protocol: DLMS,
Baud rate: 1200 –57600 bps, Half duplex
RS485 port Protocol: Configurable DLMS/MODBUS RTU,
Baud rate: 1200 – 57600 bps, Half duplex
Ethernet port 10/100 Mbps, Protocol: DLMS and MODBUS TCP simultaneous client
Full duplex
Connector type standard RJ45 for all the ports except optical
Inputs and Outputs 7 fixed pulse outputs
4 configurable as pulse inputs/outputs

  • Pulse outputs:
    Type: Volt-free, 100 mA
    Voltage: 48-240 V AC/DC, Option for 24-40 V DC,
    Pulse width: 20 – 1000 ms (for 50Hz); 16 – 1000 ms (for 60Hz)
  • Configurable as pulse input/output:
    Pulse output Type: Volt-free, 100mA
    Pulse input type: Optical isolator
    Voltage: 24-240 V AC/DC
  • Indicator
    Six LEDs: 2 for metrology, 2 for pulse outputs, 2 for alarms/events
Accessories (optional) Panel mounting kit / RS232 communication module /
RS485 communication module / Terminal modem / Software