HP 3325A Calibration Manual page 18

TB 9-6625-2049-35
(6) Enter 10 kHz using DATA keys. Multimeter will indicate between 2.742 and
3.032 V ac.
(7) Press keys and enter values using DATA keys as listed in (a) through (c) below:
(a) FUNCTION positive ramp.
(b) 100 Hz.
(c) AMPTD CAL.
(8) Multimeter will indicate between 2.843 and 2.931 V ac.
(9) Enter 499 Hz using DATA keys. Multimeter will indicate between 2.843 and
2.931 V ac.
(10) Enter 501 Hz using DATA keys. Multimeter will indicate between 2.598 and
3.176 V ac.
(11) Enter 10 kHz using DATA keys. Multimeter will indicate between 2.598 and
3.176V ac.
b. Adjustments. No adjustments can be made.
17. Dc Offset
a. Performance Check
(1) Connect TI SIGNAL to multimeter INPUT HI and LO using 50
termination.
(2) Press SIGNAL key off (option 002 not lit).
(3) Press presently active FUNCTION key to remove ac output and activate
ENTRY DC OFFSET key (lit).
(4) Enter 5 VOLT using DATA keys and press AMPTD CAL key.
(5) Multimeter will indicate between 4.98 and 5.02 V dc.
(6) Enter -5 VOLT using DATA keys. Multimeter will indicate between -4.98
and -5.02 V dc.
(7) Repeat technique of (6) above using TI settings and multimeter indications
listed in table 5.
18
Table 5. Dc Offset
Test instrument
DC OFFSET
settings
1.499 VOLT
-1.499 VOLT
499.9 mV
-499.9 mV
149.9 mV
-149.9 mV
49.99 mV
-49.99 mV
Multimeter indications
(V dc)
Min Max
1.493 1.505
-1.505 -1.493
0.4979 0.5019
-0.5019 -0.4979
0.1493 0.1505
-0.1505 -0.1493
0.04979 0.05019
-0.05019 -0.04979
feedthrough