TB 9-6695-298-35
NOTE
For the highest possible accuracy, the force torque readout
should be calibrated at room temperature (23 degrees
Celsius, 73 degrees Fahrenheit) with at least a 30 minute
warmup period.
8. Readout Calibration
a. Performance Check
(1) With strain gage simulator set to 0 percent, set the polarity switch to the +
(positive) position.
(2) Press the ZERO pushbutton.
(3) Record the displayed reading in mV/V.
(4) Set the strain gage simulator to 10 percent.
(5) Record the displayed reading in mV/V.
(6) Repeat (4) and (5) above in 10 percent steps until readings have been recorded
up to and to include 100 percent.
(7) Return the strain gage simulator to 0 percent and set the polarity switch to
the - (negative) position.
(8) Repeat (2) through (6) above.
(9) Connect the strain gage simulator to J2 (fig. 2) and set CHANNEL switch to
select 2.
(10) Repeat (1) through (8) above for channel 2.
(11) Compare each of the displayed readings for channels 1 and 2 in mV/V to the
corresponding strain gage simulator outputs recorded on the calibration chart attached
to the strain gage simulator. At each point the displayed readings shall be within 0.0004
mV/V of the strain gage simulator output; if not, perform b below.
b. Adjustments
(1) Enable the calibration mode and repeat 7j through n above.
