Page 223 - Gas Detection Systems Training Manual

7.3 Choosing the Alarm Triggers
Next, the Alarm trigger combination must be made from the right side of the screen:
Any combination may be made. When selected, it appears lit up. Above, both the high and mid alarm triggers are selected, meaning that either the high OR mid alarm if triggered, will activate the coil.
7.4 Choosing the Latch Type
Normal Latching (off) Latching (on) Audible Alarm Type
Then finally, the coil polarity must be chosen from the right under the Trigger(s) Pane:
Normally de-energized Normally Energized
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SEC 3500 OI Supervisor Operator’s Manual Version 2.1.0095