Riken Keiki GW-3, Operation Manual

Page: 47 / 75

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 default settings 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.