TB 9-4931-217-40
Table 13. 100 Ohm Decade Linearization - Continued
Test instrument
Resistance standard
Resistance decade
Adjustments
1
nominal resistance
dial settings
(behind lower calibration)
(k )
Step
100 ohms
10 ohms
trimmer cover)
5
40
3
TEN
---
6
---
4
0
100 - 4 (R)
7
50
4
TEN
---
8
---
5
0
100 - 5 (R)
9
60
5
TEN
---
10
---
6
0
100 - 6 (R)
11
70
6
TEN
---
12
---
7
0
100 - 7 (R)
13
80
7
TEN
---
14
---
8
0
100 - 8 (R)
15
90
8
TEN
---
16
---
9
0
100 - 9 (R)
17
100
9
TEN
---
18
---
10
0
100 - 10 (R)
Other resistance decade dials remain as previously positioned.
1
b. Adjustments. Set DETECTOR RANGE switch to 3 MICROVOLTS and adjust
100fl-1 trimmer for a null indication on TI meter (R).
NOTE
Remove lower calibration trimmers cover to gain access to
adjustments.
40. 1,000 Ohm Decade Linearization
a. Performance Check
(1) Set MULTIPLIER switch to 10 X STANDARD and resistance decade dials to
000(TEN)00.01(00).
(2) Adjust resistance standard no. 1 to 10 k .
(3) Set DETECTOR RANGE switch to 3 MICROVOLTS and adjust DETECTOR
ZERO control for a null indication on TI meter.
(4) Set DETECTOR RANGE switch to 1000 MICROVOLTS and GENERATOR
OUTPUT +/OFF/- switch to + (positive).
(5) Adjust resistance standard no. 1 for a null indication on TI meter while
decreasing DETECTOR RANGE switch to 10 MICROVOLTS.
NOTE
If null indication cannot be obtained using resistance standard
no. 1, adjust DEVIATION dial to complete null indication.
(6) Position controls as listed in (a) through (e) below:
(a) GENERATOR OUTPUT +/OFF/- switch to OFF.