Model 493.02 Controller Service
Calibrating a Force Sensor
Calibration
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5. Apply a compressive force command that is 80% of the full scale
range.
Stand-Alone:
A. Using the front panel Dial, adjust the Setpoint for a
compressive force command that is 80% of the full scale
range.
B. Verify that your force transducer feedback signal is 80% of the
full scale range.
Automated:
A. Adjust the Manual Command slider for a compressive force
command that is 80% of the full scale range.
B. Use the Station Signals panel to verify that the compressive
force signal is approximately equal to 80% of the full scale
range.
6. Record force standard and conditioner feedback readings at
predetermined tensile force command points.
Note After shutting down system hydraulics, you will enter these
recorded readings on the Linearization Data window.
Stand-Alone:
A. Use the Dial to adjust the Setpoint for a 0% command.
B. Record the force standard’s readout value in the 0% row of
your record sheet.
C. Enter the corresponding conditioner feedback reading.
D. Use the Dial to adjust the Setpoint for a -2% tensile force
command.
E. Record the force standard’s readout value and its
corresponding conditioner feedback reading in the -2% row
of your record sheet.
F. Repeat steps D and E for other tensile force commands
(typically at -4, -6, -8, -10, -20, -40, -70, and -100 percent of
full scale).