HP 8340b User Manual

USER
ACCESS
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The following
are
methods
of intentionally
changing the
values
of
cal¬
ibration
constants.
When correcting
a
cal
constant
error,
the
CHECKSUM is
automatically
updated
when
the
first
cal
constant
is
corrected.
This
causes
the
CAL
FAULT
indication to
go
away
on
the
next
[INSTR
PRESET],
whether
ALL
the
corrections
were
made
or
not.
This
means
that
if
only
a
few
cal
constants
are
updated,
the
balance
are
still
using
default
data.
[SHIFT]
[PEAK]
(optimize
power
output)
updates
working
cal
constants
and
also
resets
the
FAULT
indication.
Calibration
Constant
Access
NOTE:
If
the
calibration
constants
will
not change when
you perform
the
following
procedure,
the
calibration
constant
password
feature
is
active
(see How
to
Enter
a
Password).
To
disable the
pass¬
word
function,
re-install
jumper
A59W2.
1.
To
access
calibration
constants, press:
[SHIFT]
[GHz]
[#]
[#]
[Hz]
(I/O
CHANNEL:
##
=
the
desired
Cal
Constant number
to be
viewed)
[SHIFT]
[MHz]
[1] [2]
[Hz]
(I/O
SUBCHANNEL:
12
displayed
in
ENTRY
DISPLAY)
[SHIFT]
[kHz]
[2]
[2]
[Hz]
(I/O
WRITE:
22
displayed
in
ENTRY DISPLAY)
This
lets
you
direct
access
the
desired
cal
constant
in
working
data.
The
cal
constant
value
is
displayed
in
the
ENTRY
DISPLAY
and
you can
either
see
or
change
It.
2.
To
change
the cal
constant
value,
use
the
front panel knob
or
the
entry
keyboard.
3.
To
execute
the
change
and
update
the
checksum, press [Hz],
4.
To
scroll through the
other
calibration
constants,
use
the up and
down
[STEP]
keys.
NOTE;
Using
this
method
changes
only
the
working
data.
To
permanently change
the
protected
data,
follow the
procedure
described
in
Working
Data
to
Protected Data
Transfer.
HP
8340B/41B
Assembly-Level
Service
Calibration
Constants A-13

HP 8340b Specifications

General

Brand	HP
Model	8340b
Category	Inverter
Language	English