TB 9-6625-2353-35
d. 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 check where applicable.
a. Remove protective cover from TI only when necessary to make adjustments. Replace
cover after completing the adjustments.
b. Position TI controls as listed in (1) through (5) below:
(1) POWER pushbutton to ON (in).
(2) PEAK HOLD pushbutton to out position.
(3) AC DC pushbutton to DC (out).
(4) V pushbutton to in position.
(5) 200 mV, 200 A, 200 Ω pushbutton to in position.
8. Dc Voltage
a. Performance Check
(1) Connect TI V-Ω input to calibrator OUTPUT HI and TI COM input to
calibrator OUTPUT LO.
(2) Set calibrator output for 0 V. If TI bar graph displays a segment or any portion
of a segment, perform b (1) below (AN/PSM 45 and Simpson 467 only).
(3) Set calibrator output for 200 mV. If TI bar graph does not display 20 segments,
perform b (2) below (AN/PSM 45 and Simpson 467 only).
(4) Set calibrator output for 190.0 mV. If TI does not indicate within limits
specified in first row of table 3, perform b (3) below.
(5) Repeat technique of (4) above, using the settings and indications listed in table 3.
TI will indicate within limits specified in table 3.
Calibrator
Test instrument
Range
Indication limits
Output
setting
Min
Max
190 mV
200 mV
189.7
mV
190.3
mV
1.9 V
2V
1.897 V
1.903 V
1.4 V
2V
1.398 V
1.402 V
1.0 V
2V
0.998 V
1.002 V
0.8 V
2V
0.798 V
0.802 V
0.4 V
2V
0.399 V
0.401 V
