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NPD series single phase voltage meter

Product Overview

The product is used to measure the single-phase voltage in the power circuit. It is applicable to the power circuit, and automatic control system, and can be installed in many HV and LV fixed cabinet or handcart, and drawer cabinet, and features easy installation, simple wiring, easy maintenance, low workload, and manual setting of panel key input and modifying parameter ratio at site. Complete the networking communications between different PLCs within industry and industrial control computers.

Product Features

  • The LED digital tube is used to display single-phase voltage.
  • The standard RS485 interface MODBUS-RTU communication protocol facilitates networking with background.

Main Technical Parameters

Performance Parameters
Display method LED digital display
Input signal Voltage Network Single phase
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
Measurement display Display LED digital display, and programmable settings
Operating power Scope of Work AC 220V
Power consumption ≤5VA
Extension function Communication Interface RS485, MODBUS-RTU protocol
Switch interface 2 way DI input/1 way DO output
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 96×48mm,72×72mm,48×48mm
Opening size 92×44mm,66×66mm,45×45mm
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