With voltage + current + power + power four functions Full-screen LCD display in one multi-function AC LCD backlight display with AC test instrument head, the voltage range of 110V-220V, maximum current 20A; comes with shunt, without the buyer-owned ; Grid voltage direct power supply, no external power supply, accurate measurement, large screen LCD full screen clear LCD!

Product Type: PZEM-021 (V2.0)

A. Function

1. Electrical parameters measurement (voltage, current, active power, electricity).

2. Overload alarm function (over power alarm threshold, backlight and power flickering prompt).

3. Power alarm threshold preset function (can set the power alarm threshold).

4 power button reset function.

5. Power-down data save function.

6. Large-screen LCD display full of all functions (while displaying voltage, current, active power, power).

Backlight function.

B. Display and buttons

one. UI

    Display by the big screen LCD display voltage, current, power, power parameters.

two. Display format

 

1. Power: Test range 0 ~ 4.5kW

        1kW within the display format 0.0 ~ 999.9W;

        1kW above display format 1000 ~ 4500W.

2. Power: Test range 0 ~ 9999kWh

        Within 10kWh display format 0 ~ 9999Wh;

        10kWh above display format 10 ~ 9999kWh;

3. Voltage: Test range 80 ~ 260V

        Display format 80 ~ 220V

4. Current: Test range 0 ~ 20A

        Display format 0.00 ~ 20.00.

three. button

Backlight control

The backlight can be turned on or off by pressing the button briefly, and the backlight status is automatically saved after power-off.

2 power is cleared

  Step 1: Long press the button for 5 seconds until the power display window number flashes, and then release the button;

Step 2: If you short press the button again, the battery data is cleared and exit the clear flashing state;

Step 3: If you press and hold the button for 5 seconds again until it is no longer blinking, it indicates that the battery data is not clear and exit the cleared status.

3 power alarm settings

Step 1: Long press the button, when the LCD screen shows "SET CLr" release the button, enter the power value set state;

Step 2: The power zone displays the current power alarm value and the lowest digit starts flashing. In this case, +1 can be pressed by pressing the button for a short time. When there is no button operation for more than 3 seconds, the digit is automatically switched. The setting method is the same as above.

Step 3: After the setting is completed, press and hold the key for more than 5 seconds to save and exit automatically. The active power threshold setting range is 0.0 ~ 4.5kW.

E. Precautions

1. This module is suitable for indoor use, not for outdoor use.

2. The load can not exceed the rated power.

3. Wiring order can not be wrong.

F. Specifications

1. Working voltage: 80 ~ 260VAC

2. Test voltage: 80 ~ 260VAC

2. Rated power: 20A / 4500W

3. Working frequency: 45-65Hz

4. Measurement accuracy: 1.0 level

 
G.接线示意图

H.尺寸示意图（单位：mm)