Fume Hood Monitor and Controller – User Guide 5 © 2016 CRITICAL ROOM CONTROL
Air Flow Alarm
When the current face velocity (FPM) or volumetric (CFM) reading goes outside of the alarm high
and low parameters, the unit will go into alarm. The FHM/C can be configured with an audible
alarm delay (nuisance delay). When an audible alarm delay is used, the "Hood Caution” screen
with a yellow background will be displayed until the timer runs out and the unit goes into alarm.
It is important to note that the FHM/C's face velocity and CFM alarm is ONLY active when in the
“IN USE” mode. Face velocity and CFM alarms are not active while in the “STANDBY” or
“Decommission” mode.
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AUDIBLE ALARM MUTE
HOOD FLOW NORMAL
LOSS OF HOOD EXHAUST