... measuring parameters of meter andrunning information of the network system.The meter has four buttons for programming ... electric parameters2. Monitoring and controlling power switch3. 4-quadrant,active and reactive electric energy measuring4. Multi ... ,kW,kVar,kVarh,kWh,Hz,cosφLED 4 loops 4-20mA or 0-20mA4 DO/4DIRS-485MODBUS- ... ,kW,kVar,kVarh,kWh,Hz,cosφLED 4 loops 4-20mA or 0-20mA4 DO/4DIRS-485MODBUS- ...