Ac Voltage Accuracy

TB 9-6625-2257-24

NOTE

For model 8100B perform steps (5) through (9) below. For

model 8100A perform steps (10) through (13). Perform steps

(14) through (17) for both models.

(5) Set calibrator output to +0.00055 V dc. Adjust A-D OFFSET (R206) for a TI

indication alternating between +0.0005 and +0.0006.

(6) Set calibrator output to 1.00055 V dc.

Adjust DCV CAL (R23) for a TI

indication alternating between 1.0005 and 1.0006.

(7) Set calibrator output to +1.00055 V dc.

Adjust +DCV CAL (R50) for a TI

indication alternating between +1.0005 and +1.0006.

NOTE

In (8) below X can be any number.

(8) Set calibrator output to 0.099965 V dc. Adjust DCV TRIP POINT ADJ (R208)

for a TI indication alternating between 0.099X and 0.1000.

(9) Set calibrator output to 0.09965 V dc. Adjust REMAINDER ADJ (R149) for a

TI indication alternating between 0.0996 and 0.0997.

(10) Set calibrator output to 1.0000 V dc.

Adjust DCV (R23) for a TI

indication of 1.0000.

(11) Set calibrator output to +1.0000 V dc.

Adjust +DCV (R50) for a TI

indication of +1.0000.

(12) Set calibrator output to 0.0998 V dc. Adjust REMAINDER ADJ (R149) for a TI

indication of 0.0998.

(13) Set calibrator output to +0.0998 V dc. TI should indicate +0.0998. Repeat steps

(10) and (11), as required, until TI indication is correct for both polarities.

(14) Press RANGE 100 pushbutton and set calibrator output to 100.00 V dc. Adjust

INPUT DIV ADJ (R157) for a TI indication of 100.00 (R).

(15) Set calibrator output to 10.000 V dc. Adjust INPUT DIV ADJ (R157) for a TI

indication of 10.000.

(16) Press RANGE 1000 pushbutton and set calibrator output to 1000.0 V dc.

Adjust INPUT DIV ADJ (R157) for a TI indication of 1000.0.

(17) Set calibrator to STANDBY and repeat (14) through (16) above as necessary for

proper adjustment of INPUT DIV ADJ (R157).

9. Ac Voltage Accuracy

a. Performance Check

(1) Press pushbuttons as listed in (a) through (c) below:

(a) VAC.

(b) RANGE 1.