MTS SWIFT 10 ATV Sensor - Manual (Page 122)

SWIFT 10 ATV Sensors 122 Troubleshooting
Output levels are much
higher or lower than
expected Gains in the TI calibration
file have been overwritten
or modified.
Use the TI2XFER program to upload the
current TI calibration file (refer to , “Upload the
Calibration File,” on page 56). Check that the
gain settings match the original calibration file
sent with the transducer. If they are different,
download the original file to the TI, and make
any mode changes needed for your specific
application.
Do not make changes to the original
calibration file on the disk.
Changing the original file means you will lose the
original calibration data for your transducer.
Make a copy of the original file and make any
changes to the copy.
The data acquisition scales
are set incorrectly.
Check that the data acquisition scales are set
correctly. The full scale calibration range is
shown on the Calibration Report, with 10 V =
Full Scale (unless you requested custom
calibration output before calibration at MTS).
With the TI turned on and all cables from the
transducer to TI connected, use a handheld
DVM to check the output on individual
channels while they are being loaded to make
sure that the output at the TI box and data
acquisition correlate. (Use the BNC connectors
located at the back panel of the TI.)
The transducer was zeroed
with load applied (or a
different load than the
intended tare weight for
non-spinning applications
only).
Rezero the TI, being careful not to touch or load
the transducer during the zeroing procedure.
A zero offset is present in
the data.
See Zero Offset on the previous pages of this
Troubleshooting Guide.
Troubleshooting Guide (part 5 of 10)
S YMPTOM P OSSIBLE C AUSES S OLUTION
CAUTION