AMC series AC ammeter&voltmeter, adopting AC sampling technology, can directly measure current and voltage of three phase grid. It can be used for local display, and connecting industrial control device to form measuring control system.
Technical Parameter
| Value
|
Input
| Rated Value
| AC voltage:Single phaseAC 100V,400V
Three phaseAC 100V,400V,660V(UL-L,Only 72/ 96)
AC current:AC1A,5A;
DC voltage:1000V,300V,75mV,10V;
DC current: 0-20mA,4-20mA,5A;
|
Overload
| Voltage: 1.2 times rated value(continuous); 2 times rated value /1 second
Current:1.2 times rated value(continuous); 10 times rated value /1 second
|
Frequency
| 45Hz～65Hz
|
Power Consumption
| Power consumption of each voltage,current input circuit is less than 0.5VA
|
Accuracy
| Class 0.5
|
Function
| Display
| LED or LCD
|
Communication
| RS485,Modbus-RTU protocol;(1 start bit,8 data bit,1 stop bit,no parity)
Baud Rate 2400/4800/9600/19200 bps etc.
|
Alarm
| 1 channel passive relay,contact capacity 3A/30VDC,3A/250VAC, Used for high,low,unbalance alarm etc.
|
Analog
| DC4~20mA,( load | Switching
| Input:4 channel or 2 channel dry contact Input,built in power supply
Output:2 channel switching output,NO relay contact,capacity:3A/30VDC,3A/250VAC
|
Auxiliary Supply
| AC/DC 85-265V
|
Power Consumption
| | Insulation resistance
| ≥ 100MΩ
|
Power frequency withstand voltage
| Between power supply set of terminals and signal input,output set of terminals 2kV/1min (RMS)
Between the shell and all set of terminals(except the set of terminals reference voltage less than 40V) AC 4kV
|
Environment
| Temperature
| Operation: -10℃～+55℃Storage: -25°C ~+70°C
|
Humidity
| ≤95%RH,no condensation,without corrosive gas
|
Altitude
| ≤ 2500m
|
A: Check whether the supply voltage is within the operating voltage range.
Checking whether the wiring mode setting is consistent with the actual situation;
Checking whether the voltage transformer and current transformer are in good condition.
Check the connection is corrent if the resistor above 120 ohm is connected in parallel at the communication end.
