VR-820EH
Standard features
Measure over 40 kinds of electrical parameters: three-phase phase/line voltage, zero-sequence voltage, three-phase voltage unbalance factor, threephase 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 0-63rd harmonic component of the system, calculate many power quality parameters;
Demand statistics: four-quadrant and three-phase active/reactive power demand, current demand, previous peak demand record, fault record, trend record, power quality monitoring, intelligent wiring adjustment, harmonic analysis,accumulated time-sharing record, peak demand and time tag, demand forecast;
Electric energy metering: two-way four-quadrant electric energy metering, time-sharing charging, electricity settlement and automatic meter reading
Support waveform record, trend record, maximum (minimum) value record and event record;
Standard CT, PT or direct voltage input, suitable for various connection modes;
AC/DC 110V~250V；Wide range AC/DC power supply: AC/DC 110V~250V
1-channel RS-485 communication interface, Modbus-RTU communication protocol;
With large-screen LCD real-time display, all instrument parameters can be set through display screen;
Optional features
8-channel remote digital signal input (R8)
2-channel remote relay control output (Q)
1-channel over limit alarm relay control output (M)
1/2-channel electric energy pulse output (K/K2)
1-channel programmable analog output 4mA~20mA (A)
Double RS-485 communication interface (C)
Profibus-DP communication interface (DP)
DeviceNet communication interface (DE)
TCP/IP communication interface (TCP/IP)
The pulse output cannot be selected with over limit alarm output, remote control output or analog output; over limit alarm output cannot be selected with remote control output. Select one from DP, DE, TCP/IP and double RS-485 communication functions
Overall Dimensions:
