MTS SWIFT 40 Sensor - Manual (Page 90)

SWIFT 40 Sensors 90
Test Track Vehicle
Installing the Transducer
2. Connect all cables and turn on the power to the TI boxes.
3. Let the TI boxes and transducers warm up for 15–20 minutes.
4. Run the TISTATUS program to compare the supply voltages to the
reference voltages.
Type: TIstatus <port#> <box#>
If the supply voltages vary more than 0.5 V from the reference voltages,
there is a power supply problem that must be resolved before you can
continue.
5. Verify that the calibration file is set up correctly.
A. Download the calibration file (xxxxx.cal) to the computer from the
MTS Disk that corresponds to the serial number of the transducer that
you are setting up.
B. If necessary, modify the zero algorithm and angle mode to fit the
application/use requirements as described in
, “Edit the Calibration
File,” on page 65.
C. The EncoderSize parameter should be omitted or set to EncoderSize=1
D. Download the calibration file to the TI box.
E. If it becomes necessary to change the zero algorithm or angle mode
after downloading the file to the TI, you can do so by using the
TISETZERO utility, as described in
, “TISETZERO – Transducer
Interface Set Zero Method,” on page 56
6. Elevate the vehicle with a lift, or raise each corner with a jack.
7. Perform the zero procedure on each corner of the vehicle. Both the angle
and bridge zeros are computed by rotating the tire.
A. Push either the Angle Zero or Bridge Zero button on the front of the
TI box. Both indicators will light.
B. Rotate the tire 1 1/4 to 2 revolutions, until the Bridge Zero indicator
starts flashing. Follow the guidelines in
, “Considerations for rotating a
tire,” on page 82.
C. If the Bridge Zero indicator continues to slowly flash after 2 minutes,
or if the red Fail indicator flashes, there is an error in the zero process.
Run TISTATUS to find out more information. Repeat Steps A and B. If
you continue to have an error, consult the chapter
, “Troubleshooting,”
on page 121.
D. Perform , “Verifying the Quality of the Zero Procedure,” on page 91.
E. Look at your data acquisition system to verify that the SWIFT sensor is
gathering data.
S20-21
Angle Zero
Switch and Indicator
Bridge Zero
Switch and Indicator