TB 9-6625-2277-24
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 TI protective cover from TI only to make adjustments and replace upon completion.
b. Connect TI to a 115 V ac source.
c. Press TI POWER switch to ON and allow at least 15 minutes for warm-up and
stabilization.
8. Dc Voltage
a. Performance Check
(1) Connect calibrator OUTPUT HI to TI V/k /S (V/k
on model 8010M) and
calibrator OUTPUT LO to TI COMMON.
(2) Press AC/DC pushbutton to DC.
(3) Press V function and 2 range pushbuttons.
(4) Set calibrator output to 1.9 V dc. If TI does not indicate between 1.897 and
1.903, perform b below.
(5) Set calibrator output to -1.9 V dc. If TI does not indicate between -1.897
and -1.903, perform b below.
(6) Press TI range pushbutton and set calibrator output for settings listed in table 3.
TI will indicate within limits specified in table 3.
Table 3. Dc Voltage
Test instrument
Calibrator
Test instrument indications
range pushbuttons
settings
Min
Max
200 mV
190 mV
189.7
190.3
20 V
19 V
18.97
19.03
200 V
190 V
189.7
190.3
1000 V
998
1002
1000 V DC
(1200 V DC) 1
1Model
8010M.
b. Adjustments
(1) Set calibrator output to 1.9 V dc. Adjust R4 (fig. 1) for a TI indication between
1.899 and 1.901 (R).
(2) Set calibrator output to -1.9 V dc. If TI does not indicate between -1.899
and -1.901, adjust R4 (fig. 1) (R).
(3) Repeat (1) and (2) above until both indications are within limits specified.