● High-performance hardware platform ● Various interfaces available ● 4 channels of AC voltage, 4 channels of AC current ● 5 DO, 5 DI, 5-inch color LCD screen ● 2 RS485 interfaces supporting the Modbus RTU protocol and the IRIG-B protocol ● 2 Ethernet interfaces supporting Modbus TCP, IEC 61850 MMS, FTP and device upgrade ● 1 USB port for device upgrades ● Continuous and comprehensive self-test function ● Good anti-interference capacity
Power quality monitor APView400 integrates a high-performance multi-core platform and an embedded operating system, and monitors power quality indexes stipulated in IEC61000-4-30 testing and measurement techniques - power quality measurement methods, and provides various functions such as harmonic analysis, waveform sampling, voltage dips/swells/interruptions monitoring, flicker monitoring, voltage unbalance monitoring, event recording and measurement control.
It meets IEC 61000-4-30 Class A Edition 3.1 with respect to standardization of power quality index measurement methods, measurement accuracy of index parameters, clock synchronization, event alarms and others and satisfy the demands of power quality monitoring of power supply system up to 110kV.
Therefore, it is widely applicable for power quality monitoring in chemical industry, steel industry, metallurgy industry, hospitals, data centers, transportation, construction industry and other industries.

| Rated Value | AC voltage:AC/DC220V, AC/DC110V or DC48VAC current: AC1A, 5A; |
| Overload capacity | 1.2In, continuous working20 times for 1 second |
| power supply | Rated: AC/DC220, AC/DC110V or DC48VPermissible deviation: -20%-+20%Power consumption: ≤15W |
| Power Consumption | ≤0.5VA (single phase) |
| Measuring rage | 0-1.2In |
| Digital output | Mechanical service life: ≥10000Output mode: Passive contactsSwitching capacity: ≤4000W or ≤384VAOn-state current: ≥16A(AC250V/DC24V) in the continuous mode;≥30A for a short term (200ms) |
| Accuracy | Class 0.5 |
| RMS Voltage: ±0.1%RMS Current: ±0.1%P, Q, S: ±0.2%Power factor: Class 0.5Voltage deviation: 0.1%Frequency deviation: ±0.001Hz | |
| Communication | RS485, Modbus-RTU protocol; Ethernet. |
| Three phase unbalance | Voltage unbalance: ±0.15%Current unbalance: ±1% |
| Power frequency withstand voltage | Between power supply set of terminals and signal input, output set of terminals 2kV/1min (RMS)Between the shell and all set of terminals (except the set of terminals reference voltage less than 40V) AC 4kV |
| Temperature | Operation: -10ºC~+55ºC; Storage: -30ºC-+80ºC |
| Humidity | ≤95%RH, no condensation, without corrosive gas |
| Altitude | ≤ 2500m |






