MultiRAE Pro monitors equipped with a gamma radiation sensor in addition to one or more
sensors for detecting chemical threats can operate in two different measurement modes:
l
Normal mode, in which the instrument monitors for both chemical threats and radiation
simultaneously
l
Radiation-only mode, in which the instrument continuously monitors for gamma radiation
and does not monitor for chemical threats
The specifics of each operating mode are described in the following sections.
Normal Mode for Simultaneous Radiation & Gaseous Threat
Measurements
Normal mode is the default mode of MultiRAE Pro’s operation. It is only available on MultiRAE
Pro monitors equipped with a gamma radiation sensor, provided the gamma sensor is enabled.
The minimum instrument firmware requirements for the gamma sensor are:
l
Application firmware: v.1.16 or higher
l
Sensor firmware: v.1.06 or higher
When the monitor is turned on, it boots up in normal mode to monitor for both gamma radiation
and gaseous threats. Measurements are done continuously.
Gamma Radiation-Only Measurement Mode
When the instrument is in gamma-only mode, gas sensors are not shown on the display and gas
measurements are not taken. The pump remains off and gamma radiation is measured all the
time.
WARNING
Toxic and combustible gases cannot be detected by the MultiRAE when it is operated in gamma-
only mode.
Honeywell MultiRAE Series™ 134 User Manual
CHAPTER
13
MultiRAE Pro Normal & Gamma Operation
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