TB 9-6625-1976-24
17. High Voltage Accuracy (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 1000 V range.
CAUTION
Ensure that multimeter manual range is set to 1000 V prior to
applying voltage.
(4) Set calibrator for a 700 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) Disconnect calibrator and connect TI OUTPUT to multimeter Input (2 WIRE) terminals.
(7) Set TI as listed in (a) through (e) below:
FREQUENCY RANGE-Hz switch to 10 kHz.
(a)
FREQUENCY dials to 1.0000.
(b)
VOLTAGE RANGE switch to 1000 V.
(c)
VOLTAGE dials to 700.000 V.
(d)
MODE switch to OPER.
(e)
(8) Allow multimeter to take at least three readings (samples). Multimeter will
indicate 0 V ( 4.000 V); if not, perform b (1) below.
(9) Repeat technique of (4) through (8) above for remaining values listed in table 8,
using settings and values specified.
CAUTION
Ensure that multimeter remains in manual 1000 V range.
