Page 212 - Gas Detection Systems Training Manual

By choosing one of the “Relay Delay” “On” or “Off” text boxes (low, mid, high or fault) touching the associated current value, the new value can be entered in seconds using the popup keypad. You may continue to change the other relay delay values as long as you remain on this screen. If you wish to cancel the changes, simply press the “Alarm Levels” button to navigate back to the “Alarm Levels” Screen.
This setting changes the behavior of the SEC 3100 relays, such that when they are energized on or off the prescribed delay in seconds will occur before changing states. For example; a low alarm/relay “On” delay of 4 seconds will be applied when the low alarm transitions from an off condition to an on condition- therefore it will not actually turn on until 4 seconds after the actual “on” event occurs. If the on event goes away during the 4 seconds delay, then it will never turn on. The same can be applied to the “Off” timing. A relay will delay transitioning from “On” to “Off” by the “Off” time in seconds. If the “Off” event goes away during the “Off” time delay period, then the relay will not transition from “On” to “Off”. A value of zero indicates no delay timing.
To commit the changes and write them to the SEC 3100, simply press the “Commit Changes To 3100” button. A popup status box then appears, indicating the progress of updating the Relay Delay Settings in the 3100, as shown on the following page. Once the
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SEC 3500 OI Supervisor Operator’s Manual Version 2.1.0095