TB 9-6625-1976-35
(5) Repeat steps 1 and 2 of table 5, if indications are out-of-tolerance, and repeat
b (1) through (4) above until an in-tolerance condition is achieved.
(6) Set VOLTAGE RANGE switch to 100 V and VOLTAGE dials to 100.0000 V.
(7) Adjust A6R9 for TI measured output of between 99.995 and 100.005 V (R).
(8) Set FREQUENCY RANGE-Hz switch to 1 MHz and FREQUENCY dials to
1.0000 M.
(9) Set VOLTAGE RANGE switch to 10 V and VOLTAGE dials to 10.00000 V.
Measure and record error of TI output.
(10) Set VOLTAGE dials to 1.00000 V. Measure and record error of TI output.
(11) If indication recorded in (10) above is not within 0.02 percent of indication
recorded in (9) above, adjust A8R89 (R).
(12) Repeat steps 4 and 5 of table 5, if indications are out of tolerance, and repeat (9)
through (11) above until an in-tolerance condition is achieved.
(13) Set VOLTAGE RANGE switch to 1 V and VOLTAGE dials to 1.000000 V.
(14) Adjust A8R91 for TI measured output of between 0.9999 and 1.0001 V (R).
(15) Set VOLTAGE RANGE switch to 100 V and VOLTAGE dials to 10.0000 V.
(16) Adjust A6C3 for TI measured output of 9.967 V (R).
11. Voltage Accuracy and Linearity
(Transfer Level Only)
a. Performance Check
(1) Execute multimeter ACAL AC command and after execution set multimeter for
SETACV SYNC mode of measurement.
(2) Connect calibrator OUTPUT to multimeter VOLTS INPUT terminals.
(3) Press multimeter FUNCTION/RANGE Range ⇑ or ⇓ keys to manual 1.0 V range.
CAUTION
Ensure that multimeter manual range is appropriately set
prior to applying voltage.
(4) Set calibrator for a 1.0 V, 1.0 kHz output.
(5) Allow multimeter to take at least three readings (samples); then set multimeter
to NULL function.