HP 3400B, User'S And Service Manual

Page: 34 / 77

Chapter 2 Calibration Procedures
Adj ustment Procedures
Full Scale Pointer Adjustment
This procedure shows you how to manually adjust the position of the
meter pointer for full scale readings. When properly adjusted, the meter
pointer should be aligned with the full scale marking on the right side
of the meter scale.
This adjustment is made on the
0. 1
volt range at
1
kHz. You will use
R330 which is located on the main circuit board to make the adjustment
(see
below).
Full
Scale
Pointer Adju stment (R330)
�§
:::::::
-C)-
-C)-
-=
-c::::>-
-=
�
-<J- -0- -<J-
1
HP
3400B:
Select the
0. 1
volt range.
2
Calibrator: Select a
0. 1
volt ac signal at
I
kHz (use the
·Wideband" output on the Fluke
5700A).
3
Allow one minute for the meter pointer to stabilize.
4
Remove only the top cover from the
HP 3400B
(it is important
that you do rwt remove the side or bottom covers). Adjust R330
until the meter pointer is aligned with the full scale marking on
32
the right side of the meter scale.
.
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