TB 9-4931-217-40
Table 15. 10,000-ohm Decade Linearization - Continued
Test instrument
Resistance decade dial settings1
Resistance standard
Adjustments (behind lower
nominal resistance
(ohms)
calibration trimmers
(k )
Step
10k
1k
cover)
8
---
5
0
10K - 5 (R)
9
60
5
TEN
---
10
---
6
0
10K - 6 (R)
11
70
6
TEN
---
12
---
7
0
10K - 7 (R)
13
80
7
TEN
---
14
---
8
0
10K - 8 (R)
15
90
8
TEN
---
16
---
9
0
10K - 9 (R)
17
100
9
TEN
---
18
---
10
0
10K - 10 (R)
Other resistance decade dials remain as previously positioned.
1
b. Adjustments. Set DETECTOR RANGE switch to 30 MICROVOLTS and adjust
10k 1 trimmer for a null indication on TI meter (R).
NOTE
Remove lower calibration trimmers cover to gain access to
adjustments.
42. 100,000 Ohm Decade Linearization
a. Performance Check
(1) Set MULTIPLIER switch to 0.1 X STANDARD and resistance decade dials to
0(TEN)0000.01(00).
(2) Adjust resistance standard to 10k .
(3) Set DETECTOR RANGE switch to 3 MICROVOLTS and adjust DETECTOR
ZERO 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 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,
adjust DEVIATION dial to complete null indication.
(6) Position controls as listed in (a) through (e) below:
(a) GENERATOR OUTPUT +/OFF/- switch to OFF.
(b) DETECTOR RANGE switch to 1000 MICROVOLTS.
(c) 100k ohms resistance decade dial to 1