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AC 4400W 250V 20A digital energy meter, voltage, current Watt, frequency, KWh, Power factor


Dear customers friends, please read our website carefully
We have two models with 20A voltmeter and 100A voltmeter, this is 20A model.


Active power is calculated as: P = U * I * cos, cos represents the power factor, purely resistive loads (such as incandescent, heating, etc.), the power factor is usually close to 1, induction and capacitive load power factor 0-1; therefore, the purely resistive load test time, P is substantially equal to or close to UI; test inductive or capacitive loads (such as refrigerators, washing machines, televisions, computers, etc.) when, P less than UI, in terms of a specific number, to keep the power factor associated with the power factor different for each device, please show the priority of the table.


Specification
Size: 90x54.5x28mm
Apply to 110V-220V network voltage range
Working voltage: 85 ~ 250VAC
Test voltage: 85 ~ 250VAC
Rated power:  0-20A / 0-4400 W
Operating frequency: 45-65 Hz
Measurement accuracy 1.0


Function
Mains voltage direct power supply, no external power supply, measurement precision, large LCD screen LCD display clearly.
A. Function
1. Function for measuring electrical parameters (voltage, current, active power, power).
2. Overload alarm function (over power alarm threshold, tips on backlight and power flickering).
3. Preset power alarm threshold function (can set its own power alarm threshold).
Power button cleaning function.
5. Data off function.
6. Large LCD screen, full display (display voltage, current, active power, power).
7. Backlight.
B. Display and key
Display interface
Display voltage, current, power, energy parameters from a large LCD screen at the same time.