Gas Exposures Computed; Viewing Gas Exposures - Honeywell BW GasAlertMicro User Manual

GasAlertMicro
User Manual

Gas Exposures Computed

a
To avoid possible personal injury, do not
deactivate the detector during a work shift.
TWA and STEL readings reset if the detector
remains off for more than 5 minutes.
Table 7. Computed Gas Exposures
Gas Exposure
TWA (CO, SO , Time-weighted average based on an
2
and H S only) 8-hour workday. Accumulated value.
2
STEL (CO, SO , Short-term exposure level based on a
2
and H S only) 5-15 minute period (user defined).
2
Accumulated value.
Maximum* Maximum gas exposures encountered
(Peak) during a work shift.
* For oxygen, maximum concentration encountered of
either very high or very low levels.
38
Warning
Description

Viewing Gas Exposures

The detector computes the TWA value based on an 8-hour
workday and the STEL alarm is based upon a 5 to 15 minute
period (user defined). For additional information and
procedures, refer to STEL Calculation
Press C until the LCD displays the TWA gas exposures and
then the STEL gas exposures.
Lastly, the LCD displays the maximum gas exposures.
To clear the TWA, STEL, and maximum gas exposure
readings, press C and G simultaneously.
Period.