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3
Operation
Figure 7. LED Indicator Summary, continued
See LED indicators and blink sequence descriptions on page 9.
Fault Indicator Error Sequences
LOST FACTORY
LED
CALIBRATION
G
POWER
SYSTEM
Y
Y
N/A
CALIBRATE
N/A
FAULT
R
mA FAULT
R
N/A
G
N/A
SOURCE
N/A
ATMOS
G
NOTE 1: Indicates Normal Run Mode wthout output filtering where unit lost factory calibration data. Contact Manning Systems for technical support.
NOTE 2: Indicates failed 4/20 mA output signal. Load resistance is too high.
READING DRIFTED
LED
BELOW 4 mA
POWER
G
Y
N/A
SYSTEM
N/A
CALIBRATE
Y
FAULT
R
N/A
mA FAULT
R
SOURCE
G
G
N/A
ATMOS
NOTE 1: Indicates the gas reading drifted below 4 mA and needs to be
re-calibrated only in non-filtered output run mode (no dead-band).
Manning AirScan-iR Refrigerant Sensor
continued
FAILED 4/20 mA
1
OUTPUT
N/A
N/A
N/A
N/A
N/A
SHORTED
1
SOURCE
N/A
N/A
N/A
N/A
OFF
N/A
19100 AirScan-iR-ind 05/2006 REVA Copyright © 2006 Manning Systems, Inc. All Rights Reserved.
= Initiated by button press
LOW SIGNAL OR
2
FAILED SOURCE OR CIRCUIT
N/A
N/A
N/A
N/A
N/A
G
= Green LED
Y
= Yellow LED
POWER SUPPLY
OPERATING TEMPERATURE
VOLTAGE TOO LOW
RANGE EXCEEDED
N/A
N/A
N/A
N/A
N/A
R
= Red LED
N/A
N/A
N/A
N/A
N/A
11
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