TB 9-6625-1976-24
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.
or
(3) Press multimeter FUNCTION/RANGE Range
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.
NOTE
If multimeter does not have the keyboard overlay with the
NULL function preprogrammed, you will have to access the
MATH function through the MENU command and enable
MATH NULL.
(6) D i s c o n n e c t c a l i b r a t o r a n d c o n n e c t T I O U T P U T t o m u l t i m e t e r I n p u t ( 2
W I R E ) terminals.
(7) Set TI as listed in (a) through (g) below:
(a) FREQUENCY RANGE-Hz switch to 1 kHz.
(b) FREQUENCY dials to 1.0000.
(c) VOLTAGE RANGE switch to 1 V.
(d) VOLTAGE dials to 1.000000 V.
(e) VOLTAGE ERROR-% switch to OFF.
(f) SENSE switch to INT.
(g) MODE switch to OPER.
(8) Allow multimeter to take at last three readings (samples). Multimeter will
indicate 0 V ( 0.00122 V); if not, perform steps 1 and 2 of table 6 and b (1) through (5) below.
(9) Repeat technique of (2) through (8) above for remaining steps listed in table 6,
using settings and values specified.