AIP7931 Three-Phase AC Power Meter

AIP7931 Three-phase AC Power Meter

The AIP7931 three-phase AC power meter features a basic accuracy of ±0.1%, supports voltage measurements up to 600 V and current measurements up to 50 A, and accommodates various three-phase wiring configurations. It is suitable for power testing of motors and commercial appliances.

Key Features

Technology

Specification

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Key Features

■ Three-phase : Supports 1P2W, 1P3W, 3P3W, 3P4W, and 3V3A measurement modes.

■ High precision: Basic accuracy can reach 0.1%.

■ Width achievement Rate: Measurable current up to 50A, minimum power resolution 0.01W

■ Pass-through Device: Transformation ratio function, supports conventional Class II current transformers.

■ Threshold alarm: Threshold values and measurement limits for three-phase total voltage, current, and power can be set; automatic upper and lower limit determination and alarm activation.

Technology

■ Basic accuracy ±0.1%

■ Measurement bandwidth 45Hz~65Hz

■ Maximum voltage 600Vrms

■ Maximum current 50A, supports current transformers

Specification

Product Application

Ⅰ. Motor Power Measurement

■ Power bandwidth: 45 Hz–65 Hz.

■ Current range: 0–50 A / current sensor.

Ⅱ.Performance Evaluation of Commercial Appliances: Standby Measurements

■ Current range: 50 A; measures both rated power and standby power.

■ Minimum power resolution: 0.01 W.

■ Automatically detects appliance statuses (e.g., running, stopped, standby) and selectively accumulates electrical energy.

Measurement Channel	Three-phase (supports single-phase use)
Measurement parameters/functions	Single-phase: Voltage U, Current I, Active Power P, Reactive Power Q, Apparent Power S, Power Factor λ, Phase Angle Φ, Voltage Frequency fU, Current Frequency fI, Electrical Energy Wh, Electricity Quantity Ah, Electrical (Energy) Timing Time Three-phase: Voltage ΣU, Current ΣI, Active Power ΣP, Apparent Power ΣS, Reactive Power ΣQ, Power Factor Σλ
Wiring method	1P2W, 1P3W, 3P3W, 3P4W, 3V3A
signal input	Floating input (current transformer input)
Full-scale peak factor	3
Voltage Rated Range	600V
Voltage accuracy range	0.6 ~600V
Voltage resolution	0.1V
Rated current range	50A
Current accuracy range	20m A ~ 50A
Current resolution	0.001A
Power factor accuracy range	±(0.1～1.0)
Power factor resolution	0.01
Voltage/current measurement accuracy	45Hz≤f≤65Hz	±(0.1% × displayed value + 0.1% × range)
Active power measurement accuracy	45Hz≤f≤65Hz	±(0.1% × displayed value + 0.1% × range)
Active power measurement range	0.44W~11kW@220.0V/phase, PF=0.1~1.0
Highest resolution of active power	0.01W
Frequency measurement range	45Hz~65Hz
Frequency measurement accuracy	±0.1% × displayed value
Electrical energy measurement range	0～99999MWh (resolution: 0.01mWh)
Electrical energy measurement accuracy	±0.2% × displayed value
Electricity timing range	9999 hours 59 minutes 59 seconds
Data update cycle	0.5 / 1 / 2 / 5 [s]
Transformer range	1～5000
Alarm function	Five groups of settings: upper/lower limits for total voltage, total current, and total power, and threshold settings.
Control Interface	Standard configuration: RS-232; Optional configuration: RS-485, digital input/output
External dimensions	213(W) x 132.5(H, excluding feet) x 384.5(D, excluding terminals) mm
Opening size	213 x 132.5
Foot height	14.5 mm
Total weight	Approximately 4 kg
Overall power consumption	Approximately 10VA

■ [Conditions] Temperature: 23±5℃, Humidity: 30%~75%RH, Input waveform: Sine wave, Common mode voltage: 0V, Power factor λ: 1, Peak factor: 3. After preheating.

■ When the data update rate is 100ms, all precision is added to the reading by 0.05%.

■ The effects of temperature changes:

Voltage accuracy is increased by 0.02%/℃ of the range; current accuracy is increased by 500μA/℃; power accuracy is increased by the product of the effects of voltage and current.

Ⅲ. Accessories

■ Power cord

■ Communication line