MTS SWIFT 10 MC Sensor - Manual (Page 43)

TI2SHUNT - Transducer Interface Shunt
SWIFT 10 MC Sensors Software Utilities 43
Option 4
Use this option to command a Shunt Cal in the Transducer Interface. This is the
same as pressing the Shunt button on the front panel of the TI. A period is
displayed on the screen for every change in the shunt state. This gives you a
quick view of the progress.
Option 5 A valid shunt calibration should be performed prior to executing this command.
This option allows an easy means of setting the Shunt Calibration Reference
values after calibration. After this option has executed, the file that was written
can then be downloaded (using TI2XFER option 2). Downloading the file will
set the Shunt Reference values to the last measured values, so that subsequent
Shunt Calibrations should pass when the SWIFT system is setup properly, and
fail when not setup properly.
Note This menu choice should only be used by qualified service personnel.
Setting Up Shunt Calibration Reference Values
The ti2shunt utility provides all of the necessary functions for setting up a
Transducer Interface with valid Shunt Cal Reference values.
Note This procedure should only be performed by qualified service personnel.
Before running the ti2shunt utility, connect the Transducer cable from the
SWIFT TI to the SWIFT Transducer Assembly. Power up the SWIFT TI and wait
for the red Fail indicator on the TI front panel to go out (this indicates that the TI
is ready).
Note that it is not necessary to perform a System (Transducer) Zero prior to the
Shunt Cal.
Procedure
1. Launch the ti2shunt utility.
2. Using Option 2, enter the desired shunt tolerance.
3. Using Option 4, command a shunt cal, and wait for it to complete. This
causes the TI to apply and measure each shunt delta. These measured values
will be written as the Cal Reference values. The Shunt indicator on the TI
front panel should not blink (blinking indicates that the shunt cal
verification failed).
4. Using Option 1, read the current shunt parameters. It is not necessary to
save these to a file. Review the measured values and verify that they are
correct.
5. Using Option 5, sets the last shunt measurements as the reference file.
These values are written into non-volatile memory within the TI, and are
automatically restored whenever the TI is powered up.
6. Use ti2Xfer option 1 to upload the settings including the new shunt
references to a file.
7. Using Option 4, command another shunt cal, and wait for it to complete.
This provides a verification, showing that the values downloaded are valid.
The Shunt indicators on the TI Front Panel should toggle indicating the shunt
calibration is in process.