TB 9-6625-1924-24
a. Performance Check
(1) Turn TI FUNCTION switch to OHMS and RANGE switch to X10. Adjust
control until TI meter indicates infinity on ohms scale.
DC ZERO/
(2) Connect calibrator to TI OHMS and COM terminals.
(3) Adjust calibrator until TI meter indicates 1 on ohms scale. If calibrator does not
indicate between 9.5 and 10.5 ohms, perform b (1) through (4) below.
(4) Repeat (1) through (3) above except turn RANGE switch to X1K. If calibrator
does not indicate between 950 and 1050 ohms, perform b (1), (2), (5), and (6) below.
(5) Repeat technique of a (1) through (3) above at TI RANGE switch positions listed
in table 5. Calibrator will indicate within limits specified.
Test instrument
Calibrator
RANGE switch position
indication (Ohms)
Min
Max
X100
95
105
X10K
9500
10500
X100K
95 K
105 K
X1M
0.95 M
1.05 M
X10M
9.5 M
10.5 M
b. Adjustments
(1) Short OHMS to COM terminals.
(2) Adjust DC ZERO/
control until TI meter indicates zero on ohms scale.
(3) Remove short and adjust A1R18 X10 OHMS CAL (fig. 2) until TI meter indicates
infinity on ohms scale (R).
(4) Repeat a (2) and (3) above.
(5) Remove short and adjust A1R20 X1K OHMS CAL (fig. 2) until TI meter
indicates infinity on ohms scale (R).
(6) Repeat a (4) above.
a. Deenergize and disconnect all equipment.
b. Annotate and affix DA label/form in accordance with TB 750-25.
9/(10 Blank)