Hello Muhammad Asif，

Thanks for writing in.

Do you mean current draw of  meter?  It is less than 20mA.

Best regards.

Hello Edward Van Hook，

Thanks for your message.

As per your description, it should be 200199.  Meter can only work with the original CT, which is high precision one. We are sorry other kind of CT is not suitable.

Any more questions, please kindly contact us.

Best regards.

Hello Pedro，

From the video, we can see display is not statble. How large is the input voltage? If without any load, how is it?

And is it the first use?

Best regards.

Hello RJC,

Could you please tell us more details about your problem? It is easy to adjust voltage. You can turn it clockwise or anti-clockwise.

Here is simple manual, https://www.droking.com/RJCcs/wp-content/uploads/2017/01/DATASHEET_180050.pdf

Best regards.

Hello Joel,

If reading is not correct after changing, you need to calibrate it according to below steps.

DC adjustable power supply, multimeter, load

Voltage calibrateion:

1. Hook up the meter with power supply and load.
2. Keep pressing ‘’OK” button and power on meter. After power on, please wait for 3 seconds and then release button. It will come to setting interface.
3. Please move yellow cursor to “Mode” and short press OK button, then move the yellow cursor to “10.V” and increase the voltage of adjustable power supply to 12V. Then press up or down button to adjust measured voltage of meter until it is the same as actual output voltage.
4. Next, please press “OK” button to move the cursor to “40.V”; increase the voltage of power supply, this voltage value can be any one between 32V-40V; Then press up or down button to adjust measured voltage of meter until it is the same as actual power supply voltage.
5. Please short press “OK” button again to move to”10.V”, and repeat the above two calibration for 12V and 40V. When the error between measured value and actual value is small, the calibration is finished. Then press “OK” to move the cursor to “Save” to save the setting; at last, power off and then power on again.

Charging / discharging current calibration:
1. Hook up the measuring module with power supply and load according to the charging/ discharging wiring diagram.
2. Set the power supply as over 12V, then hold on the OK button and power the meter simultaneously. Hold on OK for 3 seconds and then release. It will come to parameter setting;
3. Please move yellow cursor to “Mode” and short press OK button, then move the yellow cursor to “+4.A”(It is “-4A” in discharging mode). In that case, please make sure the actual load current is over 1.00A. Next, please press up or down button to adjust the current value of meter until it is the same as actual load current. After that, press OK, move yellow cursor to ”Save” and save the calibration.

1.Connect the meter, power supply and load according to the charging wiring diagram.
2. Hold the “OK” button for three seconds to go to the parameter setting;

3: Move yellow cursor to “Mode” position, disconnect the load firstly or make sure the load current is 0.00A; then click the “OK” button to adjust it to “0.0A”, and then short press the ↓button, the current display value will be returned to zero.

3: Then click OK to move the Yellow cursor to Save, and click OK to move the Yellow cursor to Mode.

Any more questions, please kindly contact us.

Best regards.

Hello Marc，

Thanks for writing in.

Is this item? 200219?

Below is the calibration steps. Did you operate it like that?

A DC adjustable  power supply, multimeter, load

Charging / discharging current calibration:
1. Hook it up according to the charging/ discharging wiring diagram.
2. Set the power supply as above 12V, then hold the OK button and power the meter simultaneously. Hold on OK for 3 seconds and then release. It will come to parameter setting;
3. Please move yellow cursor to “Mode” and short press OK button, then move the yellow cursor to “+4.A”(It is “-4A” in discharging mode). In that case, please make sure the actual load current is over 1.00A. Next, please press up or down button to adjust the current value of meter until it is the same as actual load current. After that, press OK, move yellow cursor to ”Save” and save the calibration.

Best regards.

Hello Justin,

Thanks for your information.

After checking, it should be normal. The problem is caused by NX setting.  Please refer to below instruction.

For mode 7, 8, 17, and 18, NX means the number of cycle.  But for 1-6 and 11-16, it is  a  unit of time.

For example, you want  to set T1 as 10 seconds.  If NX is set as 1 second,  you can set T1 as 10.

However, if NX is 2, T1 should be  5. The LED  will flash 5 times instead of 10.  It seems the frequency is different, actually time length is the same. You can check the time with other device. For any questions, please kindly contact us.

Best regards.

• This reply was modified 6 years, 9 months ago by  Drok.

Hello Shawn，

We don’t have AC version for 200310. Any more questions, please kindly contact us.

Best regards.