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Displacement Sensor Calibration 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 • 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. 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: 140 Calibration Procedures 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. MTS Series 793 Tuning and Calibration