TB 9-6625-2257-24
10. Resistance Accuracy
a. Performance Check
(1) Press pushbuttons as listed in (a) through (c) below:
(a) K
(b) RANGE 100.
(c) FILTER ON-OFF to ON.
(2) Connect TI HI and LO INPUT terminals to calibrator HI and LO OUTPUT
terminals.
(3) Set calibrator for a 100 k output then, using calibrator output adjustment
controls, set calibrator control display Reading equal to TI indication. If calibrator control
display Error indication is not within 0.12 % perform b (1) below.
(4) Press 10 M
pushbutton.
(5) Set calibrator for a 10 M output then, using calibrator output adjustment
controls, set calibrator control display Reading equal to TI indication. If calibrator control
display Error indication is not within 0.12 % perform b (2) below.
(6) Repeat technique of (5) above for settings listed in table 5. TI will indicate
within limits specified in table 5.
Table 5. Resistance Accuracy
Test instrument
Calibrator
range settings
Control display Error
( )
Output settings ( )
indications (%)
1K
1k
0.12
10 K
10 k
0.12
1000 K
1M
0.12
b. Adjustments
(1) Adjust K
CAL (R48) for TI indication within
0.12 percent of value on
calibrator (R).
(2) Adjust 10 MED CAL (R153) for TI indication within
0.12 percent of value on
calibrator (R).
11. Final Procedure
a. Deenergize and disconnect all equipment and reinstall protective cover on TI.
b. Annotate and affix DA label/form in accordance with TB 750-25.
7/(8 Blank)