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51
Rev. C | 2022.02
FCS - Operation Manual
these two channels together in the same priority, it would result in skewed average or peak
calculations. It is best to group like channels together and assign them to the same priority.
• PEAK is the highest gas concentration indicated by the channels assigned to that
chosen priority level.
mA output
percentage output for VFDs
Priority:
Add, change or remove the priority levels this analog output will
look at
Fault:
Output this value if any of the channels in the priorities selected
go into fault.
Digital:
Output this value if one or more of the channels in the selected
priorities has a time of day priority engaged.
Normal:
Output this value if the channels in the selected priorities are
reporting everything is normal but you want the analog output to
remain on.
Press SAVE to save the changes.
• STEP allows you to specify a Low, Mid and High percentage of the maximum
output for a particular analog output. This is useful for controlling variable speed
fans (VFDs). The STEP value increases or decreases by 5% increments for VFDs
(otherwise 1 mA) if you use the + or - buttons. If you use the keypad to enter a
number it will be rounded to the nearest 5% or 1 mA. For the specified priority, if a
channel goes into Low Alarm, it will output the percentage value that is entered in the
Low field; at Mid Alarm, it will output the percentage value that is entered in the Mid
field, etc.
mA output
percentage output for VFDs