The DC voltmeter mainly measures DC voltage. DC voltages DC100V, DC220V, and DC380V can be directly input into the DC voltmeter to display DC voltage transmission output standard 4-20mA signal, alarm output, 485 communication output, etc.

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1、 Functions and characteristics of DC voltmeter:

1. The display rate, communication address, baud rate, etc. of the DC voltmeter can be set through buttons on the panel, making it very flexible and convenient to use.

2. The DC voltmeter can choose analog output, with outputs ranging from 4 to 20mA, 0 to 12 to 20mA, etc.

3. The DC voltmeter can choose two alarm outputs to monitor the upper and lower limits of the measured parameters.

4. The DC voltmeter can choose RS-485 digital interface and use standard MODBUS-RTU protocol.

5. The DC voltmeter can have two optional switch inputs, which can monitor the switch status within the system.

6. The digital zero and digital calibration of the digital DC voltmeter has high accuracy and extremely high cost-effectiveness.

IIDC voltmetertechnical indicators

DC voltmeter degree: display accuracy of 0.5 level
DC voltmeter display: Simultaneously display the current values of phase A, phase B, and phase C, and the display screen is a full four digit LED digital tube display
DC voltmeter input:
Standard input current: When AC1A or AC5A is greater than 5A, an external CT should be used to expand the range setting through CT. Please specify when ordering
Current impedance:<20M Ω
Current overload: continuous overload: 1.2 times instantaneous overload: current 10 times (5 seconds)
Frequency: 50, 60HZ ± 10%

DC voltmeter power supply:
Working power supply: AC220V, AC/DC80-265V, AC380V, DC24V, DC48V. Note: Please specify when ordering the power supply
Power consumption: ≤ 5VA

Output module:
Pulse output: 2-channel power pulse output, optocoupler relay, constant: 5000imp/Kwh (Kvarh)
Switching output: 2 or 4 switching inputs
Switching output: 2-channel or 4-channel switching output
Analog output: 1-4 channels
Communication interface: RS485 interface MODBUS-RTU protocol, baud rates of 1200, 2400, 4800, 9600 optional

Isolation withstand voltage: Input and power>2kV, input and output>1kV, power box output>2kV
Insulation resistance: ≥ 100M Ω
Working conditions: Environmental temperature: -10~55 ℃, relative humidity ≤ 93%, no corrosive gas field, altitude ≤ 2500m

IIIDC voltmeterSelection Table:

4、 Connection Diagram