TB 9-6625-2230-35
8. Dc Voltage
a. Performance Check
(1) Connect calibrator OUTPUT terminals to TI VΩS and COMMON terminals.
(2) Set TI controls to measure 200 mV dc and set calibrator output to 190 mV dc. If
TI does not indicate between 189.91 and 190.09 mV, perform b(1) below.
(3) Set TI controls to measure 2 V dc and and set calibrator output to 1.90 V dc. If
TI does not indicate between 1.8991 and 1.9009 mV, perform b(2) and (3) below.
(4) Press TI range pushbutton and set calibrator output as specified in table 3. TI
will indicate within the specified limits.
Table 3. Dc Voltage
Calibrator
Test instrument
Output
Test instrument indications
range
Settings
(V)
pushbutton
settings
(V)
(V)
Min
Max
20
19.000
18.989
19.011
200
190.00
189.89
190.11
1000
900
899.4
900.6
b. Adjustments
(1) Set calibrator to 190 mV. Press TI 200 mV pushbutton and adjust R8 (fig. 1) for
a TI indication of 190.00 (R).
(3) Set calibrator output to 1.9000 V. Adjust R5 (fig. 1) for a TI indication slightly
greater than 1.9000. Adjust R6 (fig. 1) for a TI indication of 1.9000 (R).
