TB 9-6625-1314-35
(11) Adjust power supply frequency for 1000 Hz and voltage to obtain an indication
of 19.99 on TI. Ac/dc voltmeter will indicate between 0.99 and 1.01 V ac.
(12) Repeat (11) above at frequencies of 50 Hz, 5 kHz and 10 kHz.
(13) Press TI 200 range pushbutton and make connections to ac ammeter calibrator
for 199.9 mA measurement.
(14) Adjust frequency of ac power supply to 1000 Hz and output to an indication of
199.9 on TI. Ac/dc voltmeter will indicate between 0.99 and 1.01 V ac.
(15) Repeat (14) above for frequencies at 50, 5 and 10 kHz.
(16) Press TI 2000 range pushbutton and make connections to ac ammeter calibrator
for a 1.999 amp measurement.
(17) Adjust frequency of ac power supply to 1000 Hz and output to an indication of
1.999 on TI. Ac/dc voltmeter will indicate between 0.99 and 1.01 V ac.
(18) Repeat (17) above for frequencies of 50, 5 and 10 kHz.
b. Adjustments. No adjustments can be made.
32. Ac Current (AN/GSM-256)
a. Performance Check
(1) Press TI .2 range pushbutton and simultaneously press AC and MA function
pushbuttons.
(2) Connect equipment as shown in figure 3, connection B.
CAUTION
All decade positions of decade resistance standard (A8) must be
set exactly as specified in (3) below and table 17 to assure
maximum current limits of the decades are not exceeded.
Table 17. Ac Current Accuracy (AN/GSM-256)
Test instrument
Ac/dc voltmeter indications (V ac)
Decade
resistance standard
RANGE
Indication (mA)
Min
Max
ohms settings
pushbutton
0020000.00
2
1.999
3.9580
4.0380
000200.00
20
19.99
3.9580
4.0380
000010.00
200
100.00
0.9900
1.0100
38
