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 “remote measuring” 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 Data

Accuracy 0.5, 0.2 class, Frequency meter 0.1 class Display Four digital LED with sign bit Input Nominal input Current AC1A, AC5A, DC20mA and etc; VoltageAC100V, AC220V, AC380V, DC75mV and etc. Overloading Continuance: 1.2 times, Instantaneous: current 10 times(5s), Voltage 2 times(10s) Frequency 50/60Hz±10% Power supply Auxiliary power supply AC, DC 80~270V Power consumption ≤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, Ri<500Ω connect; Ri>100kΩ disconnect Isolation withstand voltage Input and power supply＞AC2kV, Input and output＞AC1kV, Power supply and output＞AC2kV, Output and output＞1kV Insulation resistance ≥100MΩ Mean time between failures ≥50000h Communication output RS-485 interface, MODBUS-RTU protocol, Address: default1(1~256 optional) Baud rate: default 9600(optional 4800, 9600)bps