Honeywell MultiRAE Series User Manual page 141

Exiting Gamma-Only Measurement Mode
To exit gamma-only mode and either switch back to normal mode (where both gamma
radiation and gaseous threats are measured) or to gas-only mode:
1.
Press [N/-] when the instrument is running in gamma-only mode:
2. The following screen appears:
Press [Y/+] to enter normal (multi-threat) mode.
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Press [MODE] to enter gas-only mode.
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Notes:
If the monitor runs in gamma-only mode for over 20 minutes, TWA is not calculated for
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gas sensors.
STEL is reset for gas sensors when the instrument exits gamma-only mode.
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Honeywell MultiRAE Series™ 136 User Manual