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DFPM902 DC Energy Meter

AdoptS microelectronics technology and special-purpose large-scale integrated circuit, and apply digital sampling processing and SMT technology. With single channel or dual-channel DC measurement, LCD display and RS485 communication.

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Feature

Class 0.5 High Accuracy Metering

Multi-tariff Metering

Daily & Monthly Electric Energy Freezing

Rich Communication Protocols

4P Dimension Lightweight & compact design

Function

-Applied to DC power supply, EV charging station

-Measure bidirectional electric energy, Class 0.5 high accuracy

-Real-time measure current, voltage, power, etc.

-Multi-tariff Metering (sharp, peak, flat, valley)

-35mm DIN Rail installation

-Daily & Monthly electric energy freezing (the latest 31 days & 12 months)

-Multi communication protocols (Modbus-RTU, DL/T 645-2007, DL/T 698.45-201X)

-Lead sealing to prevent electricity-stealing

-DFPM902 has 2 RS485 ports, DFPM902-A has 1 RS485 port

Technical Specification

Rated voltage	1000V
Rated current	100A/75mV, 200A/75m, V300A/75mV, 400A/75mV, 500A/75mV
Auxiliary power supply	18~58VDC or 80~264VAC
Power consumption	Voltage measuring circuit: <0.5VA Current measuring circuit: < 0.1VA
Power consumption	Auxiliary power supply： AC: apparent power <5VA, active power <2W DC: power <2VA
Accuracy	Class 0.5
Pulse output	50imp/kWh, 100imp/kWh, 200imp/kWh (settable)
Display	LCD display, HTN material
Working condition	Working temperature: -25℃~ 55℃ Storage temperature: -40℃~ 70℃ Humidity: 5%~95%, no condensation
Insulation property	Power frequency AC voltage: 4.4kV, impluse voltage: 6kV
Electrostatic discharge immunit test	IEC61000-4-2, Level 4
RF electromagnetic field immunity test	IEC61000-4-3, Level 3
Electrical fast transient immunity test	IEC61000-4-4, Level 4
Surge immunity test	IEC61000-4-5, Level 4
Conducted emission	EN55022, Class B
Radiated emission	EN55022, Class B