HP 8508A - Page 87

Adjustments
Alternatively,
install
the
input
module
extender
(HP
part
number
08508-60032)
in
the
HP
8508A
Vector
Voltmeter.
(The
input
module
is
not
required.)
Set
switch
$1
on
the
input
module
extender
to
*CALIBRATION’
and
set
switch
S2
to
*EXTENDER:CALIBRATION’,
The
100mV
signal
from
the
AC
Calibrator
can
be
applied
to
either
of
the
BNC
connectors
on
the
input
module
extender
front
panel.
6.
Set
up
the
AC
Calibrator
for
an
output
frequency
of
20
kHz
and
a
level
of
100
mV.
7.
Adjust
A3R178
to
give
a
display
reading
of
100.0
+
0.1
on
Display
2.
oe
8.
Press
[HOLD
VALUE]
to
cancel
the
function.
9.
Remove
the
test
clips
and
replace
the
HP
8508A
top
cover.
E1089
:
5-11