Calibration/Programming Modes - Honeywell Manning AirScan iR Instruction And Installation Manual

AirScan iR - Industrial

Calibration/Programming Modes:

Refer to the Calibration section before proceeding.
Auto "ZERO" Program Function
Start: Press and hold S1 for 1 second or until the
yellow "calibrate" LED turns continuous ON. Release
S1 and the yellow "calibrate" LED will turn off. This
indicates the unit "zero" is now programmed to a
neutral or 4 mA resting state for 0 ppm of target gas.
Figure 17. Auto-zero program function
"Span" Calibration/Programming Mode
Start: Press and hold S2 for 1 second or until the
yellow "system" LED blinks slowly and the yellow
"calibrate" LED blinks fast. Once in this mode the
"span" pot can be adjusted to determine the 20 mA
full-scale concentration.
Figure 18. Span calibration/Programming mode
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Exit: To program the "span" setting and exit this
mode, press and hold S2 for 1 second or until the
yellow "system" LED resumes the state before
the calibration mode was initiated and the yellow
"calibrate" LED turns off.
4 mA Output Calibration/Programming Mode
Start: Press and hold S1 for 7 seconds or until the
yellow "system" LED turns continuous ON and the
yellow "calibrate LED blinks slowly. See the following
example.
Once in this mode the "zero" pot can be adjusted to
calibrate the 4 mA output to a PLC, SCADA system,
panel, etc.
Exit: To program the 4 mA calibration point and exit
this mode, press and hold S1 for 1 second or until
the yellow "system" LED resumes the state before
the calibration mode was initiated and the yellow
"calibrate" LED turns off.