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NPM96S/NPM72S series

Product Overview

The NPM96S/NPM72S meters are designed and manufactured using the latest microprocessors and digital signal processing technology, can fully measure a variety of power parameters, and cooperate with other electrical components to realize primary circuit protection and remote data acquisition and control. Use MODBUS-RTU communication protocol via the RS-485 communication interface according to the need, and form the background network monitoring system.

Product Features

  • The key function interface navigation makes operation more convenient and realizes function of similar phone navigation button, so that the instruments are more intelligent.
  • Multi-level setting interface, users can directly select the items of interest to set, so that the setting is more convenient.
  • The sliding window demand is selected for use by the meter, under which the active demand, reactive power demand and apparent power demand can be measured.
  • View the last 20 SOE records (switch value action status and occurrence time).
  • Realize remote data acquisition and control.

Main Technical Parameters

Performance Parameters
Display method LED digital display
Input signal Voltage Network Single phase, three-phase four-wire (three-phase three-wire)
Rating value AC100V、400V
Overload 1.2 times for long term overload; 2 times for short term overload (60s)
Power consumption <1VA(every phase)
Impedance >300kΩ
Accuracy True RMS measurement, accuracy class 0.2
Current Rating value AC1A、5A
Overload 1.2 times for long term overload; 10 times for instantaneous load (5s)
Power consumption <0.4VA(every phase)
Impedance <200mΩ
Accuracy True RMS measurement, accuracy class 0.2
Measurement display Frequency 40Hz~65Hz, accuracy 0.05Hz
Power Active, reactive, apparent power, accuracy class 0.5
Electric energy Four quadrant metering, active power accuracy 0.5, reactive power accuracy class 1.0
Display All Chinese LED display, programmable setting, display content can be switched or cyclically display
Operating power Scope of Work AC 85V~265V / DC 90V~300V
Power consumption ≤5VA
Extension function Communication Interface RS485, MODBUS-RTU protocol
Switch interface DI passive dry contact input, DO output (DO can be set over-limit alarm output)
Pulse output 2 way electric energy pulse output, pulse constant can be set
Transmission output DC 4 mA~20mA 0.5 class
Environment Operating Environment -10~60℃ Humidity scope: 5~95% (non-condensing)
Storage environment -40℃~85℃
Safety Withstand voltage Among input, output, power supply >2kV
Insulation Input, output, power supply to shell >100MΩ
Overall dimensions Frame size 96×96mm,72×72mm
Opening size 92×92mm,68×68mm