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Chapter 2 Calibration Procedures
Adj us tment Proced ures
HP 3400B
Calibrator
Range
Output Voltage Output Frequency
0.0 1 V
om V
1 HP 34008: Select the 0.01 vol t range.
2
Calibrator: Select a 0.01 volt ac signal a t 1
"Wideband" outpu t on the Fluke 5700A).
3
Ext ernal Multimet er: Select the 10 Vdc range with 5� digi ts o C
resolu tion.
4
Remove only the top cove r from the HP 34008 (it is important
tha t you do rwt remove the side or bottom cove rs). Adju st
until the dc voltage mea sured at the rea r-panel dc output jack is
within the limits shown in the table above.
Tenth Scale Gain Adjustm.ent
This p rocedu res manually adju sts the vol tmeter Co r ten th scale
readings. The tenth sca le adjustment and the Cul l scale adjustment
(described in the previous section)
repea t the adjustments until both measurements
recommended limits.
The signal measured Co r this t est i s a dc vol tage taken a t the rea r-panel
dc outpu t jack. This voltage is normalized to -1 Vdc and i s proportional
to the
input volt age (-1 Vdc corre sponds to a Cull-scale meter
RMS
deflection ).
For thi s adjustment, all measuremen ts
will
a t 1 kHz. You
make the t en th scale adjustments u sing
i s located on the main circuit boa rd
30
Calibrator
(DMM Readng)
1
kHz
-1 . 00 19V
(use the
kHz
are
interdependen t and you should
are
are
(see
made on the 0.01 volt range
next page).
DC Output
R32l
wi thin the
R3l6
which
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