MTS Series 793 - Manual (Page 140)

MTS Series 793 Tuning and Calibration
Displacement Sensor Calibration
Calibration Procedures 140
1. Mount the displacement measuring device.
Mount the measuring device to measure the distance between the end of the
actuator’s piston rod and a stationary point such as the actuator’s upper
endcap. There are a variety of ways to measure actuator displacement:
• Dial Indicator
• Tape Measure/Ruler
• Optical Detector
• Encoder
2. Ensure that displacement control mode is selected.
Standalone FlexTest SE Controllers: Select Status > Control Mode >
Disp.
Automated Controllers: In the Manual Command window perform the
following:
A. Select the appropriate Channel associated with the LVDT signal you
are calibrating.
B. For the Control Mode, select Displacement.
C. Click Enable Manual Command.
• You may need to place the dial indicator on
a block to measure the mid-displacement
position.
• Be sure to zero the dial indicator after you
position it properly.