Select an Operation Mode
The detector can be used in one of three modes: Essentials mode, Hole Watch mode, and Inert
mode.
Note: Honeywell BW Ultra always monitors gas levels, regardless of the operating mode. If the
detector detects a sudden gas exposure, it will flash, vibrate, and produce a loud siren noise. A
gas level alarm takes precedence over all of the detector’s other functions.
Essentials Mode
The detector only shows the gas readings.
Hole Watch Mode
The Hole Watch mode is the default operating mode. It is used for confined space monitoring.
Use Hole Watch mode to monitor all gas levels in the same screen view. Hole Watch mode uses
bar graphs that fill when the detector detects rising gas concentrations.
l
When the detector detects normal gas levels, Hole Watch mode displays empty bar graphs.
When the detector detects non-critical gas levels, Hole Watch mode displays filling bar
graphs.
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When the detector activates a single gas alarm, Hole Watch mode highlights the detected
gas level for that gas in a solid bar.
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When the detector activates a multiple gas alarm, Hole Watch mode continues to display the
first detected gas level, as well as highlight other detected gas levels in a solid bar.
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For oxygen, Hole Watch mode displays low and high levels in a bar graph. As the detector
detects a low oxygen level, the bar graph fills toward LO.
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As the detector detects a high oxygen level, the bar graph fills toward HI.
Inert Mode
You can configure Inert Mode in Safety Suite Device Configurator (SSDC). Go to the "Sensors"
tab and click the "Edit" icon on the O
2
sensor. Then click on the dropdown menu within
"Operation Mode". The threshold for operation is 5%. If oxygen readings fall below 5%, the
detector prompts the user to enter the Inert mode. The detector does not start automatically in
Inert Mode.
When the detector goes into Inert Mode, the alarms setpoint get activated. If the detector does
not enter in Inert mode, the O
2
readings are considered normal.
The inert mode operation:
1. Inert mode should be enabled in the configuration
2. When the O
2
concentration becomes < 5 %vol for more than 20 sec, a message will pop up
on LCD to activate inert mode, user has to press and hold for 3 secs.
BW Ultra 28 User Manual
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