MTM-A Capacitive Level Meter - Zero Calibration Guide After Interface Upgrade

MTM-A Quality Type Level Meter (after interface upgrade) Zero Calibration Operation Guide: Place the sensing pen at the 9 o'clock position and keep it still, then wait until the screen displays P0 before removing it. Lightly tap the 9 o'clock position once to switch the interface from P0 to P1. Place the sensing pen at the 3 o'clock position and keep it still to enter the P1 zero calibration interface, waiting for the values to stabilise. Place the sensing pen at the 3 o'clock position again and keep it still to perform the zero calibration; the digits flashing indicates successful calibration. Place the sensing pen at the 9 o'clock position and keep it still to exit the P1 interface. Wait for the 10-second countdown to finish; zero calibration is complete.