TB 9-6625-1314-35
Table 14. Dc Current
Current shunt
Test
Ac/dc voltmeter indication
range plus
instrument
(mV dc)
Range
Indication
AMPERES
position
pushbutton
(mA)
Min
Max
0.01
2
1.999
19.910
20.070
0.1
20
19.99
19.910
20.070
1
200
199.9
19.910
20.070
10
2000
1999
19.830
20.150
b. Adjustments. No adjustments can be made.,
28. Dc Current (AN/GSM-256, AN/GSM-259, and AN/TSM-55)
a. Performance check
(1) Connect equipment as shown in figure 3, connection A.
(2) Press TI MA function and .2 range pushbuttons.
CAUTION
All decade positions of decade resistance standard (A8) must be
set exactly as specified in (3) below and table 15 to assure
maximum current limits of the decades are not exceeded.
Table 15. Dc Current Accuracy (AN/GSM-256, AN/GSM-259, and AN/TSM-55)
Decade
Test instrument
resistance standard
RANGE
ohms settings
pushbutton
Indication (mA)
Min
Max
002000.00
2
1.999
3.9820
4.0140
000200.00
20
19.99
3.9820
4.0140
000010.00
200
100.0
0.9960
1.0040
(4) Adjust electrical test set (A11) to obtain an indication of 199.9 on TI. Ac/dc
voltmeter (A3) will indicate between 3.9820 and 4.0140 V dc.
(5) Set electrical test set to 0 (zero) V and repeat technique of (3) and (4) above,
using settings and indications listed in table 15.
(6) Disconnect equipment setup shown in figure 3.
(7) Connect electrical test set to TI using two leads (B4).
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