Campbell Scientific CSAT3B CSAT3B Three-Dimensional Sonic Anemometer - Page 70

Troubleshooting

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CSAT3B Three-Dimensional Sonic Anemometer Graph 1 minute of wind data from the CSAT3B while it is in the zero wind environment. The wind offset should be less than ± 8 cm·s-1 (0.08 m·s-1) for ux and uy, and less than ± 4 cm·s-1 (0.04 m·s-1) for uz. If the CSAT3B wind offset is greater than these specifications, contact Campbell Scientific for an RMA number to recalibrate the CSAT3B. NOTE When returning a CSAT3B for factory recalibration or repair, it is important to ship the unit with the foam inserts (see Section 5.2.2.1, Sonic Carrying Case) provided from the factory). 9.5 Troubleshooting Most problems that occur with the CSAT3B will generate a flag in the Diagnostic Word that are set high (see Section 8.4.2, Diagnostic Word, and TABLE 8-5). It is normal to see occasional sonic flags being set due to precipitation, insects, spider webs, birds, etc. that pass through one or more of the sonic paths and obstruct the signal. If diagnostic flags are persistently high, however, this could indicate a more serious problem. In the case that diagnostic flags are persistent, troubleshoot with the following steps: 1. Perform a visual inspection of the CSAT3B. Make sure it is clear from anything that might obstruct the sonic signal. Check for signs that the geometry of the arms has changed in any way, possibly from an impact from another object. 2. Check all wiring connections between the CSAT3B and datalogger. 3. Check to see if the diagnostic flags are still high. 4. If diagnostic flags persist, remove the CSAT3B from the site and perform a zero-wind offset as described in Section 9.4.1, Test for Wind Offset. Check to see if the diagnostic flags are any different once inside the laboratory. 5. In case the diagnostic flags are related to a bug or corruption of the OS, send a new OS following the instructions in Section 9.5.1, Sending an OS to the CSAT3B. 6. If the problems are still unresolved, contact an application engineer at Campbell Scientific. If possible, be prepared to send a file of CSAT3B output data, including the diagnostic word, to the application engineer. If it is determined that the unit must be returned to the factory for recalibration and/or repair an RMA will be required (see Section 9.6, Returning the CSAT3B). 9.5.1 Sending an OS to the CSAT3B To send an operating system (OS) to the CSAT3B, follow these steps: 1. Select the Support tab of the CSAT3B web page (www.campbellsci.com/csat3b) to download the latest version of the CSAT3B OS to your PC. 2. Connect to the CSAT3B and launch the Device Configuration Utility as described in Section 7.1, Settings. 60

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CSAT3B Three-Dimensional Sonic Anemometer
Graph 1 minute of wind data from the CSAT3B while it is in the zero wind
environment. The wind offset should be less than ± 8 cm
·
s
–1
(0.08 m
·
s
–1
) for u
x
and u
y
, and less than ± 4 cm
·
s
–1
(0.04 m
·
s
–1
) for u
z
. If the CSAT3B wind offset
is greater than these specifications, contact Campbell Scientific for an RMA
number to recalibrate the CSAT3B.
When returning a CSAT3B for factory recalibration or repair, it is
important to ship the unit with the foam inserts (see Section
5.2.2.1,
Sonic Carrying Case
) provided from the factory).
9.5
Troubleshooting
Most problems that occur with the CSAT3B will generate a flag in the
Diagnostic Word that are set high (see Section 8.4.2,
Diagnostic Word
, and
TABLE 8-5).
It is normal to see occasional sonic flags being set due to
precipitation, insects, spider webs, birds, etc. that pass through one or more of
the sonic paths and obstruct the signal.
If diagnostic flags are persistently high,
however, this could indicate a more serious problem.
In the case that
diagnostic flags are persistent, troubleshoot with the following steps:
1.
Perform a visual inspection of the CSAT3B.
Make sure it is clear
from anything that might obstruct the sonic signal.
Check for signs
that the geometry of the arms has changed in any way, possibly from
an impact from another object.
2.
Check all wiring connections between the CSAT3B and datalogger.
3.
Check to see if the diagnostic flags are still high.
4.
If diagnostic flags persist, remove the CSAT3B from the site and
perform a zero-wind offset as described in Section 9.4.1,
Test for
Wind Offse
t.
Check to see if the diagnostic flags are any different
once inside the laboratory.
5.
In case the diagnostic flags are related to a bug or corruption of the
OS, send a new OS following the instructions in Section 9.5.1,
Sending an OS to the CSAT3B.
6.
If the problems are still unresolved, contact an application engineer at
Campbell Scientific.
If possible, be prepared to send a file of
CSAT3B output data, including the diagnostic word, to the
application engineer.
If it is determined that the unit must be returned
to the factory for recalibration and/or repair an RMA will be required
(see Section 9.6,
Returning the CSAT3B
).
9.5.1 Sending an OS to the CSAT3B
To send an operating system (OS) to the CSAT3B, follow these steps:
1.
Select the
Support
tab of the CSAT3B web page
(
www.campbellsci.com/csat3b
) to download the latest version of the
CSAT3B OS to your PC.
2.
Connect to the CSAT3B and launch the
Device Configuration Utility
as described in Section 7.1,
Settings
.
NOTE
60