Digital Monitoring Controller

These S Series Digital Monitoring Controller is designed for power system enterprises and industries for monitoring and controlling. They can measure most of common use electric parameters in high accuracy, such as three phase voltage, three phase current, three phase current and voltage combined, three phase active power, with the function of four loops switch value input measuring(remote surveillance) and 2/3 loops relay output(remote control) with RS485 interface, realize a remote measuringa function by MODBUS-RTU communication protocol. The transformation ratio can be programmable configured by the panel of the meter. The operation is easy and convenient.

Technical Specifications :
Accuracy 0.5a 0.2 class, Frequency meter 0.1 class
Display Four digital LED with sign bit
Input Nominal input Current AC1Aa AC5Aa DC20mA and etci VoltageAC100Va AC220Va AC380Va DC75mV and etc.
Overloading Continuance: 1.2 times, Instantaneous: current 10 times(5s), Voltage 2 times(10s)
Frequency 50/60HzA 10%
Power supply Auxiliary power supply ACa DC 80~270V
Power consumption a 4VA
Relay output 2~3 loops relay output, Relay contact catacty: AC3A/250V resistive, DC5A/30V resistive
Switch value input 4 loops switch value input by dry node point mode, Ri100kIC disconnect
Isolation withstand voltage Input and power supplyi AC2kV, Input and outputi AC1kV, Power supply and outputi AC2kV, Output and outputi 1kV
Insulation resistance a Y100MIC
Mean time between failures a Y50000h