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Rev. 11-5 12/15/2020
Copyright © 2020 by Cool Air Incorporated. All rights reserved.
Additional functions are available through the rotary selector switch
when the jumper (labeled “SET1”), located below the rotary
selector switch on the front panel-mounted circuit board, is
installed:
To:
Set the Rotary
Selector Switch to:
Display ammonia sensor temperature (Solid
State Sensor Only)
1
Zero adjust for the Electrochemical sensor
2
Program the ammonia sensor 4 – 20mA Range
3
Set the Service Mode Time out
4
Set the status of the External Temperature
sensor (installed or not installed)
5
Sets the AUX relay pairing
6
Set the Display start value. 0PPM, 10PPM or
25PPM
7
Select for Solid State Sensor or
Electrochemical Sensor
8
Calibrate the detector
9
Note:
If the SET1 jumper is left in the installed position for more
than 5 minutes without pressing an “UP” or “DOWN” button, the
digital display will begin to display ammonia concentration. If this
happens, remove the SET1 jumper and return the selector switch to
the “0” position, then re-install the SET1 jumper and set the switch
to the desired position.
