HP 8340b User Manual

Save/Recall
Register
Initialization
1.
To reinitialize
the
save/recall
registers
in
RAM
(this
function
does not
effect
the
Cal
Constants),
press:
[SHIFT]
[MHz]
[1]
[8]
[SHIFT]
[kHz]
[0]
[Hz]
2.
Turn
the
instrument
off
then
on,
and
press
[INSTR
PRESET].
Calibration
Constant Password
Enable
This
procedure
lets
you prevent
viewing
or
manipulation
of
instrument
calibration
constants
without
a
password
(number)
NOTE:
Once
the
password
is
entered,
the
instrument
allows
calibration
constant
access
until
[INSTR PRESET]
is
pressed.
1.
To
activate
the
password function, press:
[SHIFT]
[GHz]
[8] [2]
[Hz]
[SHIFT]
[MHz]
[1] [2]
[Hz]
[SHIFT]
[kHz]
[2]
[2]
[Hz]
[-][2][3][8][7][5][Hz]
This
key
sequence accesses
cal
constant
#82 (LOCKWORD ENABLE)
and sets
it
to
-23,875,
enabling
the lockword
function.
2.
To change
the
password
number:
The
password
number
is
held in
cal
constant
#81
(LOCKWORD)
and
is
factory set to
0.
a.
Access
cal
constant
#81
(press
the
down
arrow
STEP key).
b.
Use
the
ENTRY
keyboard
to
enter
a
number
between
—32,768
and
32,767.
c.
To terminate
the
entry,
press [Hz].
The
number entered
is
the
password required
to
access
the calibration
constants.
3.
Remove
jumper
A59W2
on
the
A59
digital
interface
assembly.
4.
If
you
forget
the
password,
re-install
Jumper
A59W2
to
disable
the
password
function.
How
to Enter
a
Password
1.
To
access
the
location (subchannel)
where
the
password
is
required, press;
[SHIFT]
[MHz]
[2] [0]
[Hz]
[SHIFT]
[kHz]
2.
Enter
the
password:
a.
Use
the
keyboard to
enter
the
password
number.
b.
Press
[Hz].
NOTE:
To
enter
a
password
via
HP-IB,
type
"SHMZ20HZ SHKZ###HZ"
(### is
the
password
number).
When
the
correct
password
is
entered, you
can access
the
calibration
constants
as
described
in
the
preceding
procedures.
The
password
allows
access
to
calibration
constants
until
you
press
[INSTR PRESET]
(HP-IB: IP).
HP
8340B/41B
Assembly-Level Service Calibration
Constants A-15

HP 8340b Specifications

General

Brand	HP
Model	8340b
Category	Inverter
Language	English