1.Product display
2.Product introduction
This series digital display voltmeters are used to measure single phase or three phase AC voltage in low voltage distribution system. They are equipped with analog output, relay output, digital input and communication supporting Modbus-RTU protocol. Their transmitting ratio also can be changed through programming. There are different choices of outline size for this kind of meters. So they are suitable to replace analog pointer voltmeters.
This series digital display AC voltmeters have high environment adaptability because their working temperature range is -40~70℃ and EMC better than III level. They can be applied in control systems, distribution automation systems, industrial automation systems and intelligent buildings.
3.Technical specification
Accuracy | 0.5%(defaulted), 0.2% | |
Display mode | LED or LCD | |
Data refresh rate | 1s | |
Input | Rated value | AC 100V, 220V, 380V |
| Overload | continuous 1.2Un |
| Frequency | 45~65Hz |
Power supply | Working range | AC 80~270V 50/60Hz, DC 80~270V |
| Consumption | ≤5VA |
Digital input | Dry contact mode | |
Relay output | Contact capacity (resistive):AC 5A/250V, DC 5A/30V | |
Analog output | Current output | DC 4~20mA, 0~20mA, 0~5mA etc., If 4~20mA or 0~20mA,load≤350Ω If 0~5mA,load≤1 kΩ |
| Voltage output | DC 0~5V, 1~5V, 0~10V etc.,load≥20kΩ |
Communication | RS485 interface,Modbus-RTU protocol,baud rate 2400~9600bps | |
Environment | ||
Working temperature | LED:-40~70℃ LCD:-25~70℃ | |
Storage temperature | -40~85℃ | |
Relative humidity | ≤93%RH | |
Pollution degree | 2 | |
Measurement type | CAT III | |
Insulating ability | Between power and input or output≥AC2kV, Between input and output≥AC1kV | |
Altitude | 2500m | |
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