Frequently Asked Question

How does exSILentia use the sensor selections 1oo2 vs 1oo2D or 1oo1 vs 1oo1D?
Last Updated 5 years ago

The "D" in the 1oo1D and 1oo2D options indicates that there is an independent diagnostic output switch that will de-energize the output upon failure detection.

In other words for sensors this means that any detected failure is converted into a trip.

The 1oo1D and 1oo2D options are obsolete as the user can now identify that "alarms should be voted as trip". We have left the two options in the voting selections for backwards compatibility.

For any new SIF/sensor configuration it is suggested to use the 1oo1 or 1oo2 with "alarm voted as trip".

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