TB 9-6625-1942-24
(5) Adjust A13R17 OFFSET 3 (fig. 1) until TI indicates 1 count of value recorded in
a (15) above, while reversing polarity of the inputs at both the INPUT and EXT REF
terminals on TI (R).
(6) Adjust A13R8 OFFSET 1 (fig. 1) until TI indicates 1 count of value recorded in
a (17) above, while reversing polarity of the inputs at both the INPUT and EXT REF
terminals on TI (R).
(7) Adjust A13R14 10V ADJ (fig. 1) for +10.0000 indication on TI (R).
(8) Adjust A13R12 1V ADJ (fig. 1) for +10.0000 indication on TI (R).
(9) Adjust A1A1R317 -REF (fig. 1) until TI alternately indicates between 0.99992
and 0.99999. Positive and negative indications must be equal 1 count. After
adjustments, record indications (R).
(10) Adjust A13R19 OFFSET 301 (fig. 1) for an indication equal to the average of
readings recorded in a (26) and (27) above (R).
(11) Adjust A1A1R317 -REF (fig. 1) for positive indication equal to positive indication
recorded in a (26) above. Indication should be within 1 count of indication recorded in a
(17) above and between 0.99992 and 0.99999 (R).
11. Ac/dc Ratio (Option 080 Only)
a. Performance Check
(1) Connect equipment as shown in figure 3.
(2) Set RATIO switch to EXT REF 1V and adjust power supply for a 0.10000 V dc
indication on multimeter.
(3) Set FUNCTION switch to AC and RANGE switch to 1V.
(4) Adjust calibrator output to 100 mV at 100 Hz. TI will indicate between 0.99860
and 1.00140.
(5) Repeat technique of (3) and (4) above, using RANGE switch settings and
indications listed in table 5.