Hello Rod Mattos,

We only have one manual, did you get this one? https://images-na.ssl-images-amazon.com/images/I/C1zIm9IgBsS.pdf

Best regards.

Hello,

Here is manual for #200310

https://www.droking.com/cs/wp-content/uploads/2020/11/200310.pdf

Best regards.

Hello David F,

Thanks a lot for your suggestion.

But it seems you mistake the OUT” arrow . When the arrow  point to the right, that is discharging status, AH is decreasing.

On the contrary， AH increases  when arrow point to the left.

Best regards,

DROK

Hello Mark Jose,

Please refer to below current calibration. If there is no large error,  it is not recommend to calibrate meter.

Charging and discharging current calibration methods are the same.
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. release button after 3 seconds. 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 reading of meter until it is the same as actual load current. After that, press OK, andmove yellow cursor to ”Save” and save the setting.

Best regards,

DROK

Hello,

For any questions, please kindly contact us through service@droking.com

Best regards.

Hello Jay Lyons,

As shown below, the red wire and black wire are connected to power supply, the yellow wire and the other black wire are connected to load.

For any more questions, please let us know.

Best regards.

Hello Robin,

According to your description, please check if it is this item, #200324 https://www.amazon.com/dp/B0744BT79M/ref=as_li_tl?tag=proeng-20

For charging battery, please connect diode to output terminal in case current flow back to converter.

Best regards,

DROK