TB 9-6625-1493-35
(c) NULL switch to TVM.
(6) Connect equipment as shown in figure 2 and configure multimeter for most
accurate dc voltage measurements.
(7) Set calibrator for an initial 10 V dc output. Adjust calibrator for a 10.0000000 V
(5.0 V) indication on multimeter.
(8) Adjust TI voltage dials for null indication on each successively more sensitive
position of NULL switch until null indication is obtained on the most sensitive position.
NOTE
The most sensitive positions of NULL switch are .0001, .001,
.01 and .1 for the 0 to 1, 0 to 10, 0 to 100, and 0 to 1000 V
ranges, respectively.
(9) Final TI indication will be between 9.99970 and 10.00030; if not, perform b (l)
and (2) below. If within tolerance, perform b (l) and (2) below, but do not report the
adjustment (R).
(10) Set calibrator output for a negative output and TI polarity switch to - (negative).
TI indication will remain within 5 V of indication obtained in (9) above.
(11) Set calibrator to STANDBY.
(12) Set NULL switch to TVM, RANGE switch to 1, and polarity switch to +
(positive).
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