Setra Systems SRCM Operation page 19

Audible Alarm
Mute Time Out
Digital Input (DI)
Deadband
Buzzer Volume
Enables or disables the audible buzzer. Regardless of
whether audible alarming is enabled or disabled, the red
ALARM condition will show on the Home screen, annun-
ciate to an SRAN, and propagate to a configured Digital
Output. If an alarm occurs and the audible alarm is en-
abled, a new SILENCE button will appear on the Home
screen so that the operator can silence the audible alarm.
The audible alarm is silenced only for the period of time
defined by Mute Time Out.
Sets the time (in seconds) that the alarm will remain silent
after pressing the SILENCE button before the audible
alarm resumes again. This assumes that the room pressure
condition is still outside the normal setpoint operating
limits. Mute Time Out can be set from 0 to 9998 seconds.
Entering a value of 9999 will silence the audible alarm
"forever," as long as a new alarm condition does not oc-
cur.
Used for monitoring the door status, open or closed. The
DI is a Normally-Closed dry contact. A door jamb or
valve pressure switch must be wired to the terminals la-
beled DOOR in the rear of the unit. When the door opens
the contact will open, and this will show a yellow DOOR
Warning on the Home screen.
is adjustable from 0 to 10% and represents the region
within the setpoint range where yellow WARNING is dis-
played on the Home screen to indicate that the pressure is
near ALARM limits. If set to 0, no WARNING will occur,
only ALARM when the pressure value reaches setpoints.
If set to any other value, WARNING will be displayed if
the pressure value reaches that percentage of total pres-
sure setpoint range.
When the unit goes outside of the deadband range the
alarm will occur. The alarm will remain until the pressure
returns within the alarm limit range (or acknowledged
Latch alarm) minus the setpoint.
The buzzer volume can be adjusted from one—four, with
four being the highest sound level. The alarm buzzer is
disabled using audible Audible Alarm disable function.
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