PANUO PNI800A Three-phase Multi-functional Power Intelligent Measurement and Control Instrument
I. Product Basic Information
Brand: PANUO
Model: PNI800A (Basic communication model of the PNI800 series)
Installation method: Embedded installation on a 96×96mm panel, standard opening size 91×91mm
Display: High-definition LCD liquid crystal cycle display, 4 key parameter settings
Power supply: AC/DC 85~265V wide-range AC/DC universal power supply
Protection level: Front panel IP51, instrument body IP30 (Only for installation inside the control cabinet)
Operating environment: -20℃~+70℃, humidity ≤90% without condensation, with industrial EMC anti-interference design

Core measurement functions
1. Basic electrical quantity measurement (three-phase three-wire / three-phase four-wire adaptive)
Voltage: Three-phase phase voltage, three-phase line voltage
Current: Three-phase current, zero-sequence current (standardly equipped with an external 5A current transformer)
Power: Three-phase active, reactive, apparent power, total power, power factor
Frequency: 45~65Hz grid frequency
2. High-precision energy metering
Forward / reverse active energy, forward / reverse reactive energy four-quadrant cumulative measurement
Accuracy: Voltage, current 0.5 class; Active energy 0.5S class (industrial measurement grade)
Permanent storage of power loss, fault extreme data, data retention ≥10 years
3. Harmonics and power quality monitoring
2~31th voltage, current harmonics, total harmonic distortion rate THD
Voltage / current three-phase imbalance degree, voltage and current maximum / minimum values, demand statistics
Built-in switch quantity configuration
2 DI switch quantity remote signal input: Passive contacts, collecting circuit breaker, contactor, disconnect switch position status
2 DO relay alarm output (contact capacity AC250V/5A)
Settings: Overvoltage, undervoltage, overcurrent, phase loss, reverse power, power factor too low, etc. over-limit alarm settings

Communication parameters
Interface: Electrical isolation type RS485
Communication protocol: Standard Modbus-RTU
Slave station address: 1~247 configurable
Baud rate: 1200/2400/4800/9600/19200bps selectable
Check digit: No check / Odd check / Even check, data bit 8, stop bit 1
Bus mounting: A single 485 bus can be connected to a maximum of 247 instruments, compatible with PLC, GroupWare, ForceControl, WinceTouch screen, energy system remote collection

Model breakdown (comparison of PNI800 series) Table
Model Core Configuration Applicable Scenarios
PNI800A RS485 + 2DI + 2DO General distribution cabinet energy consumption collection, switch status monitoring
PNI800B Ethernet Modbus TCP Remote network port direct connection, unmanned distribution room
PNI800C Peak-valley time-of-use metering Industrial and commercial time-of-use electricity charge calculation, energy assessment






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