Installation Guide

B1-MT400

Key 3- "OK" key: When you press the button, the device will perform calibration and the system will

automatically save parameters and return to the setting interface;

Key 4 - "EXIT" key: When you press the button, the system directly returns to the setting interface.

Note: This device supports two-point O

calibration, namely 0% and 21%.

3.7.6 "5.SET VOC"

Note: This option is used for VOC calibration;

Select "5.SET VOC" on the setting menu, and then press the "OK" button (Key 3) to enter the setting

interface. As shown in the following figure:

Operation Instructions of Buttons:

Key 1- "+" key: Press this button to add the calibration value by 0.001 ppm and press and hold this button

to add the calibration value by 0.01 ppm;

Key 2- "-" key: Press this button to reduce the calibration value by 0.001 ppm and press and hold this

button to reduce the calibration value by 0.01 ppm;

Key 3- "START" key: Press the button to start the calibration and display the calibration results: "OK"

indicates that the calibration is successful and "ERR" indicates that the calibration fails;

Key 4 - "EXIT" key: When you press the button, the system directly returns to the setting interface.

Note: The VOC calibration shall be performed by professional engineers. Users are not allowed to

perform such calibration by themselves.

3.7.7 "6.SET DATA FREQ"

Note: This option is used for setting data upload frequency;

Select "6.SET DATA FREQ" on the setting menu, and then press the "OK" button (Key 3) to enter

the setting interface. As shown in the following figure: