TB 9-6625-2368-24
NOTE
A gap must be present between the calibrator arm and
the torque cell fixture housing to assure no drag exists
between the calibrator arm and the fixture assembly.
NOTE
When the direction of torque is changed (CW or CCW), TI
must be exercised at 100 percent three times prior to
completing performance check.
(3) Select the Calibration tab then the appropriate radio buttons for Torque Cell,
Arm Length, and Direction of cell being calibrated.
WARNING
Extreme care must be taken when loading and unloading
weights on the weight balance to prevent damage to load cells.
(4) In a CW direction load the torque cell to 100 percent three times using the
calibration arm, hanger and weights.
(5) Insure no tension or weight is applied to arm calibrator.
(6) Calibrate zero load by selecting the ZERO button.
(7) Select the 20% radio button in the Applied Mass section of the
Calibration tab display.
NOTE
Assure weights are placed on hanger in an alternated slot
alignment to prevent weights from falling off hanger
assembly.
(8) Level arm by adjusting the three screws located in the fixture housing,
illustrated in figure 2.
(9) Steady mass making sure that no oscillation can be observed in the level bubble.
(10) Select the Record Calibration Point button.
(11) Repeat technique of (7) through (10) above for the 60 percent and 100 percent
applied mass load to calibration arm.
NOTE
Assure weights are placed on hanger in an alternated slot
alignment to prevent weights from falling off hanger
assembly.
(12) Select the Compute Calibration Curve button.
(13) Repeat technique of (3) through (12) above in the CCW direction.
(14) Repeat techniques (1) through (13) above for remaining torque cells.
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