Resetting Gas Alarm Setpoints; Stopping A Gas Alarm; Sensor Alarm - Honeywell GasAlert Max XT II User Manual

GasAlertMaxXT II
User Manual

Resetting Gas Alarm Setpoints

Table 9. lists alarm setpoints as defined by Occupational Safety and
Health Association (OSHA).
Standard factory alarm setpoints vary by region.
Table 9. Sample Factory Alarm Setpoints
Gas TWA
O
N/A N/A
2
LEL N/A N/A
CO 35 ppm 50 ppm
H S
10 ppm 15 ppm
2
To disable an alarm, set the alarm setpoint to 0 (zero) in Fleet
Manager II.
To change the factory-defined alarm setpoints, refer to the following in
User Options:
• Low Alarm
• High Alarm
• TWA Alarm
• STEL Alarm
38
Note
STEL Low
19.5% vol.
10% LEL
35 ppm
10 ppm
Note

Stopping a Gas Alarm

The low and high alarms stop when the ambient gas concentrations
returns to a concentration below the low alarm setpoint.
If alarms are set to latch, press C to reset the alarms.
The detector computes the TWA value based on OSHA standards and
the STEL value based on a user-defined 5 to 15 minute interval. Refer to
STEL Interval.
High
The TWA and STEL alarms can be stopped either by
23.5% vol.
• deactivating and then reactivating the detector, or
• clearing the TWA/STEL/MAX exposure readings. Refer to
20% LEL
Viewing and Clearing Gas
200 ppm
Follow all safety procedures as defined by your
15 ppm
employer. Confirm with your supervisor before clearing
TWA and STEL alarms.

Sensor Alarm

The detector tests for missing or defective sensors during the startup
self-test and continuously thereafter. If a sensor fails the self-test, Err
displays above the gas type of the failed sensor. If a sensor fails, refer to
Troubleshooting.
Note
Exposures.
a Caution