TB 9-6625-1314-35
Table 7. Resistance
Decade resistance standard
Test instrument
indication (ohms)1
Indication
Min
Max
RANGE switch
1000 (ohms)
500.0
498.40
501.60
1000 (ohms)
999.9
996.80
1003.0
10K (ohms)
9.999
9.9680 k
10.030 k
100 K (ohms)
99.99
99.680 k
100.30 k
1000 K (ohms)
999.9
996.80 k
10030 k
10 M (ohms)
9.000
8.9090 M
9.0910 M
1Use
additional resistance standard as required.
b. Adjustments
(1) Set RANGE switch to 10 K (ohms).
(2) Set decade resistance standard to 10,000 ohms.
(3) Adjust A3R18 (fig. 1) to obtain an average indication of 0.000 (R).
NOTE
This is an indication of 10,000 ohms.
(4) Set RANGE switch to 10 M (ohms).
(5) Set decade resistance standard to 9 megohms.
(6) Adjust A3R7 (fig. 1) to obtain an indication of 9.000 on TI (R).
(7) Repeat a(3) through (6) above.
10. Dc Current (Level A)
a. Performance Check
(1) Set FUNCTION switch to VOLTS and RANGE switch to 100 MV. If necessary,
adjust front panel ZERO adjust to obtain an indication of 00.00 on TI.
(2) Connect equipment as shown in figure 2.
(3) Set FUNCTION switch to AMPS and RANGE switch to 100 A.
(4) Insert dc current shunt (A6) range plugs in the .0001 AMPERES position.
(5) Adjust dc voltage standard (A7) output and decade resistor (A9) to obtain an
indication of 99.99 on TI. If ac/dc voltmeter (A3) does not indicate between 99.780 and
100.21 mV, perform b below.
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