Part number 20079, Rev 0
11
rd (Relay Delay)
If there is an alarm condition, the relay contacts will switch. The relay delay parameter allows
the user to set the amount of time delay from the start of the alarm condition to the time the
relay contact switches. This keeps the relay from switching during short “nuisance alarms”.
The operator may set the relay delay time for 0 to 30 minutes.
SIL (Alarm Silence, or Alarm Mute Time)
This parameter sets the number of minutes the beeper will “chirp” when the mute button is
pressed during an alarm condition. After the Silence Time elapses, if the alarm condition still
exists, the beeper will begin to sound at full volume again. This parameter can be set from 5 to
120 minutes.
Remote Alarm Contacts
The Remote Alarm Relay is a single-pole double-throw (SPDT) relay that changes state
(switches) with the loss of line power or with the presence of an alarm condition.
NOTE: The relay is rated for pilot duty operation only. Do NOT use it for control switching. The
relay contacts and connections are rated at 30v/1A.
In normal applications, the relay signals remote alarms or central monitoring systems that an
alarm condition has occurred at the unit being monitored.
The relay will “pull-in” when line power is present. If an alarm condition lasts for a designated
time (the “relay delay”), the relay will “drop out”, causing the relay contacts to switch. If the
alarm condition does not last long enough for the relay delay to time out, the relay will not go
into its alarm position. The relay will also “drop out” if power to the alarm is lost, acting as a
power loss detector.
The diagram below is an example of hooking up our external relay output to a remote alarm.
