MTS SWIFT 30 Sensor - Manual (Page 49)

TIXFER - Transducer Interface Transfer
SWIFT 30 Sensors Software Utilities 49
Make important files read-only after uploading. After uploading important
files, such as those containing calibration data, make them read-only.
If not protected, important data may get overwritten.
Make important files read-only, and make backups of important data.
Check force and moment output signals after downloading new settings.
Downloading new settings may affect Transducer Interface outputs.
After downloading new settings, force and moment output signals should be
monitored to check basic system operation.
More about TIXFER
files
The files created by TIXFER are plain text files that can be read by Microsoft
Notepad or WordPad. In general, use a common extension such as “.cal” to help
identify the files, but that is not required. The settings files contain both
configuration settings and calibration settings. As a general rule parameters that
begin with K are calibration gains and should not be edited. Configuration
settings such as the zero algorithm can be changed without affecting the
calibration.
Whenever downloading settings, make sure the file is for the transducer
connected to the SWIFT Transducer Interface. Usually the filename for the
settings contains the serial number for the transducer. If settings for one
transducer are used with another they will not be accurate. Because the TI is
calibrated by itself, calibration settings for a given transducer can be used with
any TI, however, some calibration methodologies require the transducer, cable
and TI to be used as a calibration set (end-to-end calibration).
The serial number in the TIXFER settings file is the serial number of the TI that
the settings were first uploaded from.
The bridge and angle zero values will change whenever a zero is activated by
pressing the TI front panel zero button. Therefore, after a zero is performed the
zero values uploaded will not match those downloaded.
All parameters within the TI have been calibrated. Because the resolution of each
adjustable parameter is finite, downloaded values may vary slightly from
subsequent uploads and the values uploaded from various units may be different.
The downloaded value gets “snapped” to the closest realizable value. The
realizable values depend on the resolution and calibration data for the parameter.
Normally the gains from the SWIFT automated calibration stand are computed to
a higher resolution than the TI is capable of dealing with.
CAUTION
CAUTION