MTS Series 793 - Manual (Page 212)

MTS Series 793 Tuning and Calibration
Extensometer Calibration
Calibration Procedures 212
5. Perform shunt calibration.
Standalone FlexTest SE Controllers:
Select Setup > Strain > Calibration > Select Cal Type >
A. Select required Shunt Display units.
B. Ensure that Shunt State (+) is set to On. Polarity is always positive.
Note the Shunt Reference (+) value, it should be 60%–90% (80% is
ideal) of the calibrated range of the sensor.
C. Click Update to copy the current shunt reference value into the Shunt
Reference box.
D. Set Shunt State (+) to Off.
Automated Controllers:
A. In Station Setup select the appropriate strain channel on the navigation
panel., click the Channel Input Signals icon, and then click the Shunt
tab.
B. Select the shunt type. Use (+) polarity if you are not sure what to select.
C. In the Current Shunt Value box, click the On button. Note the
Current Shunt Value, it should be 60%–90% (80% is ideal) of the
calibrated range of the sensor.
D. Click Update to copy the Current Shunt Value into the Shunt
Reference Value box, and then click Off.
Task 7 Save the calibration settings
It is important that you save your sensor calibration values.
Standalone FlexTest SE Controllers: Select Setup > Open/Save Parameters >
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Automated Controllers: Click Update File on the Calibration tab
This saves the current calibration values to your current sensor calibration file.