TB 9-4931-217-40
(b) DETECTOR RANGE switch to 1000 MICROVOLTS.
(c)
1k OHMS resistance decade dial to 1.
(d) 100 OHMS resistance decade dial to 0.
(e) GENERATOR OUTPUT +/OFF/- switch to + (positive).
(7) Decrease DETECTOR RANGE switch setting until 10 MICROVOLTS range
is reached or until a full-scale indication is obtained on TI meter. If TI meter does not
indicate null on 10 MICROVOLTS range, perform b below.
(8) Set GENERATOR OUTPUT +/OFF/- switch to OFF and DEVIATION dial to X0.
(9) Repeat (3) through (8) above using resistance standard and resistance decade
dial settings listed in table 14. If TI meter does not indicate null on 10 MICROVOLTS
range, perform appropriate adjustment listed in table 14.
Table 14. 1,000-Ohm Decade Linearization
Test instrument
Resistance standard
Resistance decade
Adjustments
no. 1
dial settings1
nominal resistance
(behind lower calibration)
(k )
Step
1k ohm
100 ohms
trimmer cover)
1
20
1
TEN
---
2
---
2
0
1000 - 2 (R)
3
30
2
TEN
---
4
---
3
0
1000 - 3 (R)
5
40
3
TEN
---
6
---
4
0
1000 - 4 (R)
7
50
4
TEN
---
8
---
5
0
1000 - 5 (R)
9
60
5
TEN
---
10
---
6
0
1000 - 6 (R)
11
70
6
TEN
---
12
---
7
0
1000 - 7 (R)
13
80
7
TEN
---
14
---
8
0
1000 - 8 (R)
15
90
8
TEN
---
16
---
9
0
1000 - 9 (R)
17
100
9
TEN
---
18
---
10
0
1000 - 10 (R)
Other resistance decade dials remain as previously positioned.
1
b. Adjustments. Set DETECTOR RANGE switch to 10 MICROVOLTS and adjust
1000 1 trimmer for a null indication on TI meter (R).
NOTE
Remove lower CALIBRATION TRIMMERS cover to gain access
to adjustments.
37
