After the instrument has been working for a certain period of time, especially in environments with high humidity, the air filtration combination may retain some moisture. You can check whether drainage is needed through the observation window on the back panel of the instrument.

When drainage operation is required, the specific method is as follows: first, turn off the power of the instrument and empty the air in the pressure chamber. Then, use a cross screwdriver to remove the small cover plate with an observation window installed on the rear panel. Place the drainage outlet pipe into the water receiving vessel. Finally, rotate the gray knob at the bottom of the air filter combination counterclockwise to perform drainage operation.

(Note: 1. Ensure that water does not leak into the instrument during drainage; 2. After drainage is complete, tighten the black knob clockwise to prevent air leakage.)

The manufacturer recommends observing every 6 months or so, and you can adjust the observation period according to the local climate.

When obvious condensation is observed in the observation window, it is necessary to consider the saturation failure of the molecular sieve and replace it in a timely manner while draining it. Specific method: First, remove the upper panel of the instrument, then use a screwdriver to remove the fixing ring that fixes the drying cylinder, unplug the air pressure pipes at both ends of the drying cylinder, unscrew the sealing cover of the drying cylinder, and pour out the desiccant inside for replacement. Finally, follow the reverse steps to install the instrument.