5. Usage Instrucions 5-5. Measuring gas concentration
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NOTE
When the confirmation beep has been set, the buzzer sounds at the set interval during measurement. (Refer to
‘6-7. Confirmation beep setting (BEEP)’ in the Technical Manual.)
The gas concentration alarm setpoints can be checked in display mode. (Refer to ‘5-6. Checking the gas
concentration, alarm setpoints, etc. (display mode)’.)
The LCD backlight lights up when you press the POWER/MODE button or the AIR button. The LCD backlight
will go out after about 30 seconds if no operation is performed. Thirty seconds is the default setting. Change the
LCD backlight lighting time in user mode. (Refer to ‘6-8. LCD lighting time setting (BL TIME)’ in the Technical
Manual.)
The LCD backlight turns on automatically if an alarm is triggered.
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