TB 9-6625-2368-24
NOTE
See Appendix A for entire list of TI components.
a. Performance Check
NOTE
The first time calibration is performed on torque cells complete
b below. Torque cells cannot be verified without coefficients
loaded from a previous calibration.
(1) Select the load cell to be calibrated and install into the horizontal calibration
fixture as illustrated in figure 1.
(2) Attach appropriate calibrator arm for load cell being calibrated. Calibration
arm 6" for 5, 20, and 100 lb load cells and 48" for the 500 and 1000 lb load cells.
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 Verification tab then the appropriate radio buttons for Torque Cell,
Arm Length, and Direction of cell being calibrated.
WARNING
Heavy weights are used during the performance of this
calibration. Injures may result if personnel fail to observe
safety precautions. Use extreme care in handling weights
to minimize damage to personnel and equipment. Fully
support the weight with the jack until ready to apply.
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 exercise 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.
