Voltage calibration. Used to correct minor discrepancies in the display vs. actual voltage. Wiring Overview Input (Power):
Adjust the displayed voltage () to match a professional multimeter. How to Set Thresholds Enter Menu: Press SET until "P1" or "P2" appears. Xh-m608 Manual
Select between Charge ( U ), Discharge ( P ), Timing Charge ( C ), or Timing Discharge ( D ). Voltage calibration