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This symbol is displayed when a gas alarm occurs.
A gas concentration exceeds the high alarm threshold.
A gas concentration exceeds the low alarm threshold.
A STEL alarm occurs.
A TWA alarm occurs.
This is displayed when user's input is needed. It could be
either a single press or a press-and-hold.
A span calibration is in progress or overdue.
A zero calibration is in progress.
A bump test or calibration is overdue.
A bump test or calibration fails.
Peak readings are recalled.
A functional error occurs.
The remaining lifetime is less than 24 hours.
This is the remaining period of lifetime.
This flashes as long as the detector works normally with-
out any gas alarms and functional errors.
Stealth mode is enabled. In stealth mode, the detector
generates only vibration when a gas alarm occurs.
Activating the Gas Detector
Activate the gas detector in a place where the air is clean and free of
hazardous gases. In normal air, the concentration of oxygen is 20.9%.
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