TB 9-6695-293-50
(3) When the reading has settled, press SET REF soft key on ac measurement
standard.
(4) Set TI for 1.0 mA, 1.0 kHz ac output. Record ac measurement standard
displayed error indication in appropriate column of table 6. The result will be within the
limits specified.
(5) Return to +1.0 mA dc output that was set in (2) above and verify that the ac
measurement standard error display returns to a zero reading .0010 PCT; if not, repeat
technique of (2) through (4) above.
(6) Repeat technique of (4) and (5) above for 10 Hz, 20 Hz and 5 kHz and 10 kHz.
(7) Repeat technique of (2) through (6) above for 100 A, but set the resistance
standard dials to 001000.00.
a. Frequency Accuracy
(1) Connect OUTPUT HI and LO terminals to frequency counter.
(2) Set TI for a 1 V, 10 Hz output. Frequency counter will indicate between 99.99
and 100.01 ms.
(3) Repeat technique of (2) above for the frequencies listed in table 7. Frequency
counter will indicate within the listed limits.
Test instrument
Frequency counter indications
frequency
Min
Max
15 Hz
66.66
ms
66.6733
ms
100 Hz
9.999
ms
10.001
ms
200 Hz
199.98
Hz
200.02
Hz
500 Hz
499.95
Hz
500.05
Hz
1kHz
999.9
Hz
1000.1
kHz
5kHz
4999.5
Hz
5000.1
Hz
10 kHz
9.999
kHz
10.001
kHz
50 kHz
49.995
kHz
50.005
kHz
100 kHz
99.99
kHz
100.01
kHz
140 kHz
139.986
kHz
140.014
kHz
200 kHz
199.98
kHz
200.02
kHz
500 kHz
499.95
kHz
500.05
kHz
1MHz
999.9
kHz
1.0001
MHz
