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Honeywell 301C User Manual
Alarm A, B, and C Menus
The screens for viewing alarm thresholds are combined in this manual.
There will be either two or three levels, depending on transmitter type.
If present, separate “MIN” and “MAX”levels permit manual control of
the hysteresis of each alarm. Normally, the “MAX” level is set greater
than “MIN.” However, alarms can be made to trigger on falling
concentration (as with oxygen) by setting the “MAX” threshold smaller
than the “MIN” threshold.
With certain transmitters, only one threshold will be displayed.
Additionally, with certain transmitters, the alarm thresholds are read-
only at the controller. These thresholds can be set only at the
transmitter.
These are typical screens:
Typical screen for viewing alarms A or B on XCD and XNX transmitters
Typical screen for viewing or changing alarm A, B, or C thresholds on
other transmitters.
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