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Indicating the measured gas concentration (Alarm or safe)
6.
Whether a gas concentration has been measured by the sensor and whether the
sensor is functioning correctly is shown by an acoustic alarm and two LEDs, one for each
sensor.
1 SENSOR 2
7.
The indication is as follows:
Switching off the acoustic alarm.
8.
If there is an alarm situation, the acoustic alarm (buzzer) can be switched off by
pressing alarm mute button. If the alarm situation still exists 5 minutes after the alarm mute
button has been pressed the acoustic alarm will be switched on again.
Fan.
9.
Use the fan button to switch the fan on and off. When the fan is switched on the
green LED above the fan button will be on. This LED will flash if the battery voltage is too
low. The fan is switched on automatically if there is an alarm situation.
Ageing of the sensors
10.
The sensor ages through use. The extent of the ageing is monitored by the gas
detector. After about 2 years continuous use, the sensor is aged and the gas detector will
give a warning. The LED of the corresponding sensor on the panel will flash red and the red
7 - 3
Mar 20
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