PDM-820EH is with the following standard features:
- Measure over 40 kinds of clectrical parameters: three-phase/line voltge, zero-sequence voltage, three-phase voltage unbalance factor, three-phase current, frequency, zero-sequence current, three-phase current unbalance factor, active power, reactive power, power factor, current/voltage THD, load indication, three-phase voltage/current phase angle, etc.
- Monitor real-time 0-50rd harmonic component of the system, calculate many power quality parameters
- Demand statistics: two-way four-quadrant three-phase active/reactive power demand, current/voltage demand
- Electric energy metering: two-way four-quadrant electric energy metering, time-sharing charging, electricity settlement
- Fault record, power quality monitoring, waveform record, trend record, harmonic analysis, accumulated time-sharing record, event record
- Standard CT, PT or direct voltage input, suitable for various connection modes
- AC/DC 100V-250V: Wide range AC/DC power supply: AC/DC 110V-250V
- 1-Channel RS-48S communication interface. Modbus-RTU communication protocol
- With large-screen LCD real-time display, all instrument parameters can be set through display screen.
- 1-channel RS-485 communication interface, 104 communication protocol (c)
- 2/4-channel remote digital signal input (R/R4)
- 1-channel electric leakage current input (Y50)
- 2-channel remote reply control output (Q)
- 2-channel electric energy pulse output (K)
- 1-channel over limit alarm relay control output (Q3)
- 1-channel programmable analog output 4mA-20mA (A)
- Protection control output (Q4)
- The pulse output cannot be selected with over limit alarm output, analog output cannot be selected with over limit alarm output; 4-channel remote digital signal input cannot be selected with electric leakage current imput.