TB 9-4931-383-50
b. Items of equipment used in this procedure are referenced within the text by common
name and item identification number as listed in tables 2 and 3. For the identification of
equipment referenced by item numbers prefixed with A, see table 2, and for prefix B, see
WARNING
HIGH VOLTAGE is used during the performance of this
fail to observe safety precautions.
NOTE
Unless otherwise specified, verify the results of each test and
take corrective action whenever the test requirement is not
NOTE
Unless otherwise specified, all controls and control settings
refer to the TI.
c.
When indications specified in
paragraph 19 are not within
tolerance, perform the
power supply check prior to making adjustments. After adjustments are made, repeat
paragraph 19. Do not
perform power supply check if all
other parameters are within
tolerance.
d. Position TI controls as listed in (1) through (5) below:
(1) VOLTAGE RANGE switch to 10.
(2) Voltage dials to 1.000000.
(3) METER switch to VOLTAGE.
(4) VOLTAGE TRIP control fully clockwise.
(5) CURRENT LIMIT control fully clockwise.
e.
Connect TI to
autotransformer (A1) and
leave connected throughout procedure.
NOTE
The sensitivity switch (B1) has been included in equipment
setups for safety and to allow reversal of connections to null
detector. Detailed operation of the switch is not included in
step-by-step procedure.
f. Connect autotransformer to
115-volt source and
adjust for 115-volt output.
g. Turn POWER switch to STDBY/RESET and allow at least 1 hour for warm-up.
19