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GasAlertMicro 5/PID/IR
User Options Menu
TWA Method
OSHA Method: 8 hour moving average – oldest value (first hour) is
replaced by the newest value (ninth hour).
ACGIH Method: Infinite accumulated average to 8 hours – total
accumulation, whether it is 2 hours or 8 hours.
After selecting the desired sensor, press H to scroll to TWA method.
Press C within 20 seconds to confirm.
Note
If the TWA method has been changed, the TWA, STEL, and
MAX values must be reset to ensure the TWA is calculated
correctly. Refer to Clearing Gas Exposures
.
Resolution
Note
Regular resolution for O
3
and ClO
2
sensors is 0.1 ppm, while
extra resolution is 0.01 ppm.
The Resolution option is not available for CO, O
2
, LEL, PID,
and CO
2
sensors.
After selecting the desired sensor, press H to scroll to Resolution.
Press C within 20 seconds to confirm.
The TWA method (time-weighted average)
option is a safety measure used to calculate
accumulated averages of gases to notify the
user when the maximum average is
accumulated. The options are the OSHA or
ACGIH calculating method.
A check displays in the checkbox of the
currently selected method. To select the
other method, press H to move the check
to the other method. Press C to confirm the
selection.
The detector is shipped with the OSHA
method enabled.
The Resolution option displays the gas
measurement using Regular or Extra
resolution.
Regular: Displays gas measurement in
1 ppm increments.
Extra: Displays the gas measurement in
0.1 ppm increments.
A check displays in the checkbox of the
currently selected resolution. To select the
other resolution, press H to move the
check to other resolution. Press C to
confirm the selection.
The detector is shipped with Regular
resolution enabled for applicable sensors.
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