TB 9-6625-2088-24
CALIBRATION PROCESS
6. Preliminary Instructions
a. The instructions outlined in paragraphs 6 and 7 are preparatory to the calibration
process. Personnel should become familiar with the entire bulletin before beginning
the calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturer's manual for this TI.
d. When indications specified in paragraphs 8 through 14 are not within tolerance,
perform the power supply check prior to making adjustments. After adjustments are made,
repeat paragraphs 8 through 14. Do not perform power supply check if all other
parameters are within tolerance.
e. Unless otherwise specified, all controls and control settings refer to the TI.
7. Equipment Setup
WARNING
HIGH VOLTAGE is used or exposed during the performance of
this calibration.
DEATH ON CONTACT may result if
personnel fail to observe safety precautions. REDUCE
OUTPUT(S) to minimum after each step within the
performance checks where applicable.
a. Position controls as listed in (1) through (10) below:
(1) Frequency dial to 1.05 (black scale).
(2) FREQ/PERIOD MULTI (Hz/s) switch to 10K (black scale) and VERNIER
control to CAL.
(3) GENERATOR MODE switch to CONT and TRIGGER LEVEL control fully ccw.
(4) TRIGGER START/STOP switch to 0 CAL (detent).
(5) PULSE DELAY switch to 50 ns/100 ns and VARIABLE control fully cw.
(6) NORMAL/DOUBLE/DELAYED switch to NORMAL.
(7) PULSE WIDTH switch to OFF and VARIABLE control to midrange.
