TB 9-6625-1957-24
(2) Short VOLTS/ and LOW terminals. If TI does not indicate between .0002
and +.0002, perform b (l) below, before proceeding.
(3) Press 200 mV range pushbutton. If TI does not indicate between 00.02 and
+00.02, perform 16 b (2) below, before proceeding.
input and
(4) Remove short and connect calibrator OUTPUT HI to TI VOLTS/
calibrator OUTPUT LO to TI LOW input.
(5) Set calibrator for an output of 1.9 V. If TI does not indicate within limits
(6) Repeat technique of (1) (b) and (5) above, using outputs and settings listed in
adjustment as listed in the Adjustments column in table 7.
Table 7. Dc Voltage
Test instrument
Calibrator
Range
Indications
Adjustments
output (V)
setting
Min
Max
1.9
2V
1.8989
1.9012
2 VDC R1505
1.9
1.8989
1.9012
2V
- - -
0.190
200 mV
189.88
190.13
200 mVDC R1504
19
20 V
18.989
19.012
20 VDC R1104
190
200 V
189.89
190.12
200 VDC R1110
1000
1000 V
999.3
1000.7
1000 VDC R1114
(7) Reduce calibrator output to minimum.
b. Adjustments
(1) Adjust 2 V DC0 R1405 (fig. 2) until TI indicates all zeros (R).
(2) Adjust 200 mV DC0 R1415 (fig. 2) until TI indicates all zeros (R).
17. Ac Voltage
a. Performance check
(1) Press TI pushbuttons as listed in (a) and (b) below:
(a) VOLTS AC TRUE RMS (in).
(b) 2 V range (in).
(2) Set calibrator for an output amplitude of 100 mV at an output frequency of
10 kHz. If TI does not indicate within limits specified in first row of table 8, perform
corresponding adjustment as listed in table 8.
(3) Repeat technique of (1) (b) and (2) above, using outputs and settings listed in
adjustment as listed in the adjustments column in table 8.
NOTE
In the following table, interaction
may
occur
in
the
adjustments of R1525 and R1537.