Table 9. Ratio Accuracy

TB 9-1430-201-50

(8) Repeat (2) through (7) above until no further adjustment is required.

(9) Set TI dials to 9000.

(10) Adjust voltage divider dials to obtain null on null detector. Voltage divider will

indicate between 899640 and 900360.

(11) Repeat technique of (9) and (10) above at TI dial settings listed in table 9.

Voltage divider will indicate within limits specified.

Table 9. Ratio Accuracy

Test instrument

Voltage divider indication

dial indication

Min

Max

8999

899540

900260

8888

888444

889156

7777

777388

778011

6666

666333

666867

5555

555277

555722

4444

444222

444578

3333

333166

333433

2222

222111

222289

1111

111055

111144

b. Adjustments. No adjustments can be made.

20. Final Procedure

a. Deenergize and disconnect all equipment and reinstall protective cover on TI.

b. In accordance with TM 38-750, annotate and affix DA Label 80 (US Army

Calibration System. When the TI cannot be adjusted within tolerance, annotate and affix

DA Form 2417 (Unserviceable or Limited Use tag).