Note：The menu item “FACTORY DEFAULT” usually displays 0.
When set to 1, instrument will automatically restart and display
“BOOT” . In addition, all parameters will be restored to factory
default setting, there is a need to re-set gas type, zero calibration and
gain calibration.
[M-05] -- Sensor replacement
For the combustible gas transmitter, you cannot replace the sensor with the device
energized and can only reset the counter of sensor service time (in days) through this
menu item.
(1) Press “+” to select menu item M-05.
(2) Press “ON” and the screen will display the menu for entering password.
(3) Enter the password (see Section 4.4).
(4) If you enter the correct password, you will enter the next submenu. Clear the
sensor service time (in days) and return to the concentration measurement screen.
(5) Press “OFF” to return to the previous menu M-05.
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