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Rev. C | 2022.02
FCS - Operation Manual
The Save button will turn green after a change has been made. If you are going through more
relays on the same screen, the system will autosave when you press the + or - to proceed or
return to the next relay number. If you press Home or Back, the change will not be saved. You
can choose to press Save if in doubt.
To continue changing or reviewing the settings for each relay press use the + to proceed to
the next relay number.
8.2 Using Relay Timers to Set ON / OFF Delays
The relay timers functionality offer a high degree of flexibility, allowing for many variations in
settings for turning on and off relay triggered events such as fans and/or signaling a Building
Automation System.
ON Delays are useful for addressing spikes in gas levels that only occur for short moments
during which there is no need to turn on the fans. For example, a car that is parked near the
gas detector is stationary idling for a few moments before leaving. The gas level in that area
could increase above the alarm setpoint and then drop a few moments later when the car
leaves. The ON Delay tells the system to wait a specified length of time before taking the gas
level seriously and to turn on the fans.
OFF Delays are useful for clearing a full cycle of air in the area that caused the gas level
alarm. Instead of turning off the fans as soon as the gas level drops below the alarm setpoint
the system keeps the fans activated for a specified amount of time to allow the air to clear
completely and then turns them off. This is especially useful in situations where the fan is
farther away from the area of gas and clearing the air takes more time.
Press Menu and enter passcode “3022” to enter the Config Channel menu. Select Next and
then Relay Timers.
If you want to review the current settings relay by relay, press the Relay + or - buttons. To skip
ahead by 10 sequential relays at a time, press the +10 button. Or press the yellow field to
reveal the keypad to enter a specific number.
To change the settings, choose the relay number or STROBE, HORN, AUDIBLE and use the +
or - buttons or press the yellow fields to use the keypad to change the values.
Enter the time (in seconds) for each function required. Use the +10 button to jump ahead by
10 seconds at a time.