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3
Operation
Calibration/Programming Modes:
Refer to Calibration, Section D 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.
LED
SEQUENCE
G
POWER
Y
SYSTEM
CALIBRATE
Y
FAULT
R
mA FAULT
R
SOURCE
G
G
ATMOS
"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.
LED
SEQUENCE
G
POWER
Y
SYSTEM
CALIBRATE
Y
FAULT
R
mA FAULT
R
SOURCE
G
ATMOS
G
Manning AirScan-iR Refrigerant Sensor
continued
N/A
OFF
OFF
N/A
N/A
OFF
OFF
N/A
N/A
19100 AirScan-iR-ind 05/2006 REVA Copyright © 2006 Manning Systems, Inc. All Rights Reserved.
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.
LED
SEQUENCE
POWER
G
SYSTEM
Y
CALIBRATE
Y
R
N/A
FAULT
OFF
mA FAULT
R
N/A
SOURCE
G
ATMOS
G
N/A
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.
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