Installation Manual

A3-MT300

UP key: No function

DOWN key: No function

OK key: The system returns to the setting

interface when this key is pressed

Menu key: The system returns to the setting

interface when this key is pressed

Interface and Operation Instructions Upon CO

Concentration Calibration Failure

UP key: Press this button to add the value by

0.1% and press and hold this button to add the

value by 1%

DOWN key: Press this button to reduce the

value by 0.1% and press and hold this button to

reduce the value by1%

OK key: Start calibration again

Menu key: The system returns to the setting

interface when this key is pressed (the

calibration fails and the system does not save

the calibrated value)

Interface and Operation Instructions Upon Successful CO

Concentration Calibration

UP key: Press this button to add the value by

0.1% and press and hold this button to add the

value by 1%

DOWN key: Press this button to reduce the

value by 0.1% and press and hold this button to

reduce the value by1%

OK key: Start calibration again

Menu key: The system returns to the setting

interface when this key is pressed (the system

will save the calibrated value automatically)

Note:

1. CO

concentration calibration setting range: From 0% to 10%;

3.2.7 "4. SET RH"

Select "4. SET RH" on the setting interface, and then press the "OK" button to enter the temperature

calibration interface, as shown in the picture below: