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Product at a glance

Bulk energy measurement, draw out type, long range site configurable with multi comms options

The Apex 100 is an advanced high-end precision meter that has been specifically designed for generation, transmission, and consumer bulk power transfer points. It supports the ICS DLMS open data exchange protocol. This allows for ease of reading and enables integration with other systems. For monitoring and billing purposes, comprehensive connectivity to backed-end systems is provided via various communication technologies.


  • Bulk energy transfer measurement and reconciliation
  • Captive power plants (CPP), feeder monitoring, grid substations and wind turbines
  • On-line monitoring of energy exchange at various interface points
  • Metering for availability-based tariffs (ABT) and open access systems
  • Energy accounting systems


  • Elimination of data gaps and revenue losses through use of hot-swappable meter modules, with automatic shorting of external current transformers
  • Minimal integration costs through multiple communications interfaces
  • Complies with the DLMS open data exchange protocol
  • Maximum revenue integrity through highest possible level of metering system accuracy
  • Efficient network management through accurate and detailed energy flow data
  • Suitable for diverse applications through wide-range voltage, current and auxiliary supply inputs


  • Full four-quadrant import / export metering with active, reactive and apparent measurement
  • Total harmonic distortion (THD) measurement for currents and voltages
  • Draw-out type meter module with automatic CT shorting
  • Wide-range dual auxiliary power supply (AC and DC), with option for self-powering
  • Dynamic error compensation for external current and voltage transformers
  • Intuitive graphical display for parameters and data
  • Two metrology LEDs for simultaneous accuracy testing of different parameters
  • Four LEDs for energy redirection and status indication
  • Comprehensive data storage for current and historical readings and load survey data
  • Flexible time-of-day tariff and maximum demand support, with automatic billing
  • Multiple communication ports for local and remote data transfer and for interfacing with external systems
  • Inter-operable DLMS and Modbus protocols for meter reading
  • Best suitable for Interface Energy Meters with five minutes integration period (field configurable)


Connection type CT/PT-operated
Wiring configuration 3-phase 3-wire, 3-phase 4-wire
Voltage range (L-N/L-L) 57.7/100 V to 69.3/120 V (configurable)*
Current range Ib: 1A or 5A (configurable)*
Imax: up to 10A (configurable)*
Accuracy Class 0.2s
Mains frequency 50 Hz ± 5%
Burden As per compliance standards
Standards IEC 62053-24, IS 14697
Certification IS 15959 DLMS Indian companion standard, category B
Dimensions (W x H x D) 19” rack (up to two meters) 428 × 133 × 260 mm approx
11” rack (single meter) 299 × 133 × 260 mm approx
Enclosure Translucent polycarbonate cover (with clear tranparent window fordisplay) and overall mild steel body
Sealing Sealable screws on the front and back fascia of meter
Sealing provision for optical port & MD reset button
Weight 6 kg approx. (with rack)
Temperature -10˚C to +55˚C (operating)
-20˚C to +65˚C (storage)
Humidity 95 % non-condensing
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