SMTD Wireless Remote Differential Pressure Meter - Medium Change Operation Guide

SMTD differential pressure meter medium change procedure: Keep the sensing pen at the 9 o'clock position, remove it once P0 is displayed, then place the sensing pen at the 3 o'clock position to enter the P0 menu, change the medium to argon, repeatedly tap the sensing pen at the 3 o'clock position to switch the medium until argon is displayed, then keep the sensing pen at the 9 o'clock position and wait for the 10-second countdown to complete. Medium change successful.