SECTION III
3-14. INITIAL CONTROL SETTINGS
3-15. To facilitate operation, the instrument is
automatically set to the following initial control
settings each time it is turned on :
Front Panel Controls :
MEASUREMENT keys .~~~~~~. OFF
AUTO
SEQ key
. . . . . . . . . . . . . . . . . OFF
INTEG TIME keys •~~.~~~~~~~. SHORT
PLOT/PRINT keys •~~~~~~..~.~ OFF
AUTO CAL
key
. . . . . . . . . . . . . . . . ON
BLUE
key
. . . . . . . . . . . . . . . . . . . . . . . . . OFF
Internal Setup :
CRT Display .............e....... MENU
Page
Measurement Program
l
**=**** GENL
(see note)
PLOT Area
........................ previously
(for external plotter)
specified
values
Note
Each flexible disc contains four
different application programs, of
which GENL is one. Refer to
paragraph 3-87 for details on the
furnished applications programs.
All data stored on the disc is retained; that is,
the disc is not erased when the instrument is
turned off.
3-l 6. USER-AREA FILING OPERATIONS
3-17. The 4145A uses a 5.25 inch, single-sided,
single-density flexible disc as the storage
medium for its MSU (mass storage unit). Each of
the five work-discs furnished with the 4145A
contains the necessary operating system
software, four general purpose measurement
programs, and enough user area for 131 records.
Up to 96 files can be stored in the user-area.
Note
A record is the minimum unit for
storage on the disc. A file consists of
1, 3, or 12 records, depending on the
file type.
3-18
Model 4145A
Three types of files can be stored in the
user-area :
1.
Measurement program files-file type P :
Specifying file type P in the SAVE command
reserves 3 records on the disc and stores the
existing measurement setup (channel
assignments,
parameter settings, graphic
scaling, output sequence, etc.) at the
reserved S-record location.
2. Measurement data files-file type D :
Specifying file type D in the SAVE command
reserves 12 records on the disc and stores
the measurement setup and measurement
results (GRAPHICS, LIST,
nwnux,
or
SCHMOO) at the
reserved 12-record
location.
3. Auto-sequence program files-file type S :
Specifying file type S in the SAVE command
reserves 1 record on the disc and stores the
existing auto-sequence program
at the
reserved l-record location.
For more information on file types, number of
records used, etc., refer to Figure 3-30, 4145A
FILE CATALOG Page.
Four filing operations-SAVE, GET, PURGE, and
REPACK-can be performed from the front d
panel. Each is described below :
SAVE :
Used to store the existing measurement
setup (except INTEG TIME, AUTO CAL, and
sof tkey
functions), the existing
auto-sequence program,
output sequence
setup, or the measurement results. SAVE
cannot be
used when the disc is
write-protected.
Before saving a
measurement setup, a page check must be
performed (refer to para. 3-44). To SAVE a
file, press the SAVE key (SAVE will appear
on the Keyboard Input Line of the CRT) and
input the file type (P, D, or S) and file
name. The file name can contain up to six
characters, of which the first must be
alphabetic and the last five must be
alphanumeric.
J
GET :
Used to recall user-stored files from the
disc. GET cannot be used to recall any of
the furnished measurement programs. To
GET a file from the user-area of the disc,
press the GET key (GET will appear on the
Keyboard Input Line of the CRT) and input *
the file type (P, D, or S) and file name.
‘4
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