more than 20 years digital led panel meter OEM experence
strong product ability with SMD
competitive price and high quality
3 phase voltmeter is a kind of programmable electrical digital meter. It can measure 3 phase voltages accurately. With 4 keys on the front panel, we can set the parameters, such as PT ratio, parameters of commnucation etc..
It can transmit the measure data to analog output or RS485 communication. With digial input or digital output, we can realize alarming or controlling other equipment (contactor) remotely.
2.Technical feature
- Measurement: VL1,VL2,VL3 or VL12,VL23,VL31
- PT ratio: Programmable
- Voltage: AC 3x120/220V, 3x230/400V, 3x400V
overload: 480V (continuous); 800V during 30s; Consumption: < 0.2VA
- Frequency: 45Hz ~ 65Hz
- Consumption: < 0.5VA
- Accuracy class: 0.2s
- Power Supply: AC85 ~ 265V or DC110 ~ 350V; Consumption: < 1.2W
- Insulation resistance > 100MΩ
- Isolation: 2kV/1min (RMS) power / Input / output
- Temperature: Operation: LCD: -10C ~ +45C; LED: -10C ~ +55C; Storage: -20C ~ +70C
- Humidity: < 93%RH, no condensation, without corrosive gas
- Altitude: < 2500m
3.Options
- Communication (/C) : RS485 (Modbus-RTU);
1 start bit, 8 data bit, 1 stop bit, no parity,
speed (1200/2400/4800/9600/19200)
- Analog output(/M): DC4 ~ 20mA, DC0~20mA( load < 600Ω),
DC0 ~ 5V,DC1 ~ 5V( load > 1kΩ)
- Alarm output(/J): 1 passive relay (1A/30VDC, 1A/250VAC):
Alarms of over voltage, under voltage and over current;
The hysteresis and the delay can be programmable.
- Digital options(/K): 2DI/2DO;
DI: dry contact Input, supplied inside, optoisolator;
DO: NO-NC contact; 1A/30VDC,5A/250VAC (to control other equipments)
