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GasAlertMaxXT II
Computed Gas Exposures
Next, the MAX readings display.
Last, the CLEAR ALL readings screen displays.
To clear the TWA, STEL, and MAX exposure readings, press C when
the following screen displays.
a Warning
Follow all safety procedures as defined by your
employer.
Deactivating the detector clears all readings. Confirm
with your supervisor before clearing TWA and STEL
alarms.
Gas Alarm Setpoints
The alarm setpoints trigger the gas alarms and are described Table 8.
Table 8. Gas Alarm Setpoints
Alarm Condition
Low alarm
Toxics and combustibles: Ambient
gas level above low alarm setpoint.
Oxygen: Ambient gas level may be
set above or below 20.9% (or 20.8%).
High alarm
Toxics and combustibles: Ambient
gas level above high alarm setpoint.
Oxygen: Ambient gas level may be
set above or below 20.9% (or 20.8%).
TWA alarm
Toxic only: Accumulated value above
the TWA alarm setpoint.
STEL alarm
Toxic only: Accumulated value above
the STEL alarm setpoint.
Multi-gas alarm
Two or more gas alarm conditions
simultaneously.
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