Dear Drok team,

looks like I have done something bad to my fresh new SKU:200219 100A power meter. I had it put on a plus wire of  4cell lifepo4 battery (12.8V). It was working just fine – reading Volts, showing Amps when engaged inverter, etc. Then, as I was trying to accustom the menu (e.g. accidentally resetting the no-load A reading, etc) … I also got it (accidentally) disconnected from power supply few times. And next thing what I noticed was it reading 90-94V instead of 13V.

Went into google and found calibration menu … I tried it, but I only had a battery available, no external powersupply. First I did try to adjust the Voltage reading when in 10V  … even with arrow down and getting adjustment all the way down from ~4000 to 0, I could not get voltage reading much below the 80V. Then I went into 40V setting and tuned down … from few thousands to tens, to get roughly 13.5V.

Looks like that might not have been a good idea to do as now the Voltage reading is very instable (e.g. jumping from 13V-13.5V) and also Amps appears way off 🙁

Also if try to do calibration with 12V power supply … in the 10V mode the adjustment is down to 0000, but read voltage is still above 13V:(

Hence few questions – is it possible to do some kind of factory reset? Is it possible to calibrate the voltage reading if I have only 12V and 24V powersupplies available (two separate units) or do I need a single unit adjustable from 12V to 32V?

Taking into account the mess with 10V/40V adjustments that I have caused, what would be the procedure to reset/get it back to normal?

Thank You so much in advance and apologies for abuse of equipment:)

Best regards,

Austris
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