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              NPM96ZH/NPM72ZH series

              Product Overview

              The NPM96ZH/NPM72ZH meters are designed and manufactured using the latest microprocessors and digital signal processing technology. The 320*240 color large screen Chinese display 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 320*240 color large screen Chinese display allows the users to view and set the data easily and conveniently.
              • The user can intuitively view the total current and voltage harmonics, the total even and odd harmonics amount of current and voltage, and the unbalance rate for current and voltage.
              • 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 system time, and view the running time of the power meter to date, and judge if any outage occurs before according to the time.
              • Directly view the three-phase current/voltage 2nd ~31st harmonic histogram.
              • View the maximum and minimum values of three-phase current and voltage and the time of occurrence.
              • 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 True color Chinese LCD
              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
              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 40~65Hz, 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 LCD 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 (for expansion into dual 485, consult with the manufacturer), 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
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