I. Performance Overview 1.XD series programmable three-phase power meter, can power lines in three-phase voltage three-phase current real-time measurements. By installing different functional modules for digital input switch outputs. Analog transmit .RS485 communication. 2. Instrument entire four-digit display, precision 0.5. 3. Using the standard Modbus-RTU communication protocol. 4. The user can set the alarm relay parameters via buttons. Transmitter output parameters communication parameters. Two main technical indicators 1. ⑴ current input signal input signal 0-5A AC current through, continue to work 1.2 times, instantaneous 10 times / 1 sec ⑵ voltage signal input AC voltage 0-500V straight, continue to work 1.2 times, instantaneous 2 times / 1 second frequency 40-60Hz ⑷ ⑶ input impedance voltmeter> 500k1Ω; ammeter <2mΩ 2. measurement display ⑴ display range 0-9999 ⑵ ⑶ resolution Accuracy 0.5 0.1 (voltage); 0.001 (current) 3. Output function ⑴ switching output relay contact output, contact capacity AC220V, 3A (resistive) ⑵ analog output DC 4-20mA.DC0-20mA.DC0-10mA ⑶ communication RS485 communication, M0DBUS-RTU protocol 4. Other features ⑴ Power AC220V ± 10% 50Hz (special voltage can be customized), power consumption <3VA. ⑵ Operating Environment Operating Temperature: -10 ~ 50 ℃, relative humidity <90% non-corrosive gas applications. ⑶ safety performance insulation resistance ≥100MΩ. Power frequency withstand voltage: 2KV / 1min AC RMS.