TB 9-6625-195-24
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 manufacturers' manuals for this TI.
d. Unless otherwise specified, all control and control settings refer to the TI.
7. Equipment Setup
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 check where applicable.
a. Connect test equipment to an appropriate power source; set all POWER switches to
ON/STBY; and allow warm-up as required by the manufacturer
b. Set TI rotary switch to
mV.
8. Dc Voltage
a. Performance Check
(1) Connect Calibrator to TI V Ω
RPM and COM inputs, observing polarity.
NOTE
For autorange to include the 400 mV (lowest) range, press the
rotary switch pushbutton three times.
(2) Set Calibrator output for the first value listed in the Calibrator output in
(3) If TI does not indicate within limits specified in first row of table 3, perform
b below.
(4) Repeat technique of (2) and (3) above, using settings and indications listed in
indicate within the Min/Max limits specified in table 3, perform b below.
(5) Set Calibrator output to minimum.
Table 3. Dc Voltage Accuracy.
Calibrator Output
Test instrument
(Dc)
Range
Min
Max
350
mV
400
mV
349.3 m
350.7m
1
3.5
V
4.000
V
3.493
3.507
35
V
40.00
V
34.93
35.07
-35
V
40.00
V
- 34.93
- 35.07
20
V
40.00
V
19.95
20.05
350
V
400.0
V
349.3
350.7
950
V
1000
V
945
955
Set TI Function switch to the
V RPM position.
1