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Chapter 7: Maintenance
AirLink 7032 Gas Monitor Operator’s Manual
F4
• The top card is losing communication to
the analog sensor board
• On AirLink T3A/AirLink VOC Pro
units, F4 means that the Analog to
Digital Conversion (ADC) on the analog
sensor board is not communicating to
the digital sensor board.
• On the AirLink 6900, F4 means the top
card is not communicating with the
analog sensor board.
• For IR sensors, the sensor element itself
could be the issue. Also, there might not
be an issue because sometimes sensor
assemblies will show F4 for a few
seconds after boot up. This is normal
and is due to the boot up of the sensor
element itself.
1. Check the orientation of the
analog sensor board and/or try a
new analog sensor board.
2. Check the connections from the
top card all the way to the analog
sensor board. If that does not fix
the fault, try replacing the analog
sensor board and/or the sensor
housing.
F5
The sensor assembly did not zero cor
-
rectly.
1. Confirm that no gas is present.
2. Replace the sensor.
F6
The sensor assembly did not auto cal cor
-
rectly.
1. Confirm the gas concentration is
correct and that it is flowing to the
sensor.
2. Replace the sensor.
F8
There are 2 sensor assemblies with the
same address trying to communicate with
the monitor.
1. Make sure all sensor assemblies
have unique addresses.
F9
The monitor has not received a communi
-
cation from the faulting sensor assembly
address for the timeout period set on page
33.
1. Check the sensor assembly for a
dead battery, broken antenna, bad
antenna cable, missing antenna,
obstacle, weather, etc.
F10
(4-20 mA
wired detector
only)
When using a monitor with wired sensor
assemblies attached, the sensor is not
communicating with the monitor. The
problem could be that the sensor assembly
is not connected properly, or there may be
board issues with the sensor or monitor.
1. Check all connections. Use a
current meter inline to see if the
current is correct.
F11
(battery
powered
detector only)
The IR sensor is changing temperature too
quickly.
1. The sensor will clear once the
temperature stops changing too
quickly.
Table 2: Troubleshooting the AirLink 7032 (Continued)
Condition
Probable Causes
Recommended Action
