CET Electric Technology Inc.

PMC-D721MD DC Multifunction Meter

PMC-D721MD DC Multifunction Meter

Phase:Three-Phase

Installation:DIN72 (68x68mm Cutout)

Communication:RS-485

Input Current:0-100 mV DC (via external Shunt Resistor)

Power Supply:90-250V AC/DC, 47-440Hz

Inputs and Outputs:2xDI, 2xSS Pulse Output

Input Voltage:0-1000V DC

Display:Backlit B&W LCD Display

Dimensions(mm):72(W)x 72(H)x 71.8(D)

  • Product Details
  • Parameter

Product Overview

The PMC-D721MD DC Multifunction Meter is CET’s latest offer for the low-cost DC metering market. Housed in an industry standard DIN form factor measuring 72x72x71.8mm, it is perfectly suited for industrial, commercial and utility DC metering applications.

The PMC-D721MD complies with Class 0.5 kWh Accuracy Standard and features quality construction, multifunction measurements and a bright, easy to read LCD display. The PMC-D721MD comes standard with two Front Panel LED indicators for Energy Pulsing and Communication. It provides two Digital Inputs for status monitoring and two Solid State Pulse Outputs for kWh Energy Pulsing applications. The standard SOE Log records meter events such as power-off, setup changes and DI operations in 1ms resolution. With a standard RS-485 port and Modbus protocol support, the PMC-D721MD becomes a vital component of an intelligent, multifunction monitoring solution for any DC Power and Energy Management systems.

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Accuracy

Parameters Accuracy Resolution
Voltage ±0.2% 0.1V
Current ±0.2% 0.01A
kW ±0.5% 0.001kW
kWh Class 0.5 0.1kWh

Technical Specifications

DC Inputs

Voltage Input Standard (Un) 1000 V DC
Measurement Range 1% to 120% Un
Starting Voltage 10V DC
Overload 1.2xUn continuous, 2xUn for 1s
Current Input Nominal Input (In) 100mV DC (via Shunt Output), configurable

for Shunts rated at 50, 60, 75 and 100mV

Measurement Range 1% to 120% In
Starting Current 0.2% of In
Max. Shunt Current 10,000A
Overload 1.2xIn continuous, 10xIn for 10s, 20xIn for 1s

Power Supply (L/+, N/-)

Standard 95-250VAC/DC, ±10%, 47-440Hz
Burden <2W

Digital Inputs

Type Dry contact, 24VDC internally wetted
Hysteresis 20ms minimum

Pulse Outputs

Type Front Panel LED/Solid State DO
Pulse Constant 25/100/400/1000/3200 Imp/kWh
Pulse Width 80ms±20ms

Communications

RS-485 Modbus RTU
Baud Rate 1200/2400/4800/9600/19200bps

Environmental Conditions

Operating Temp. -25°C to +70°C
Storage Temp. -40°C to +85°C
Humidity 5% to 95% non-condensing
Atmospheric Pressure 70kPa to 106kPa

Mechanical Characteristics

Panel Cutout 68 x 68 mm
Unit Dimensions 72 x 72 x 71.8 mm
IP Rating 52
Shipping Weight 0.34 kg
Shipping Dimensions 125 x 110 x 80 mm

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