Computed Gas Exposures; Viewing Gas Exposures; Toxic Gases; Oxygen - Honeywell GasAlert Extreme User Manual

GasAlert Extreme
User Manual

Computed Gas Exposures

To avoid possible personal injury, do not deactivate the detector
during a work shift. The detector automatically resets the TWA,
STEL, and MAX gas exposures during start-up. If the detector is
reactivated during a work shift, the new values will not reflect the
entire work shift.
Table 7. Computed Gas Exposures
Gas Exposure
TWA Time-weighted average based on an
8-hour workday.
Accumulated value.
STEL Short-term exposure limit (STEL) to
gas based on a 15-minute period.
Accumulated value.
MAX* Maximum (MAX) concentration
encountered during a work shift.
*For oxygen, it is the highest or the lowest value from
20.9% encountered.
28
a Warning
Description

Viewing Gas Exposures

Toxic Gases

C D
1. Press and simultaneously. The LCD displays the TWA
gas exposure first.
2. Then the LCD displays the STEL gas exposure.
3. Then the LCD displays the MAX gas exposure.

Oxygen

C
For oxygen detectors, press
maximum low and maximum high levels of oxygen exposure.
D
and simultaneously to view both the