10-4
Chadwick-Helmuth Company, Inc.
Chapter 10
- Printer and Disk Drive
Balance charts and spectrum setups that have been loaded from disk or saved to memory are stored in
the 8500C/C+’s static memory. Since the contents of static memory are preserved when power to th
instrument is turned off, it is not necessary to reload the same files each time a restart occurs. The files
are always available when the appropriate selection menu is displayed. The only limit to the number of
charts or setups that may be kept on-line in this manner is the amount of available static memory. To
clear all balance charts from static memory, use the Balance mode
CLR CHARTS
soft key described in
Secti on5.2.3.5 Clearing Chart Memor ” on pa ge5-5. To delete all spectrum setups from stati
memory, press the
CLEA RALL
soft key. You may use the
CLEAR ONE
soft key to delete the currently
selected setup.
If an error occurs during a load operation, the 8500C/C+ informs you of it and attempts to explain th
problem. In most cases, errors are caused by one or more of the following conditions:
• There is no disk in the disk drive.
• The disk is unreadable or not properly formatted.
• The disk contains no balance chart or spectrum setup files, or existing files have been
corrupted.
After attempting to remedy the problem, you can do one of several responses. Pressing the
RETRY
soft
key performs the load again from the beginning. Pressing
CONTINUE
skips over the chart that caused
the error and continues loading the remaining charts or setups, if possible. Pressing
QUIT
terminates
the load operation and keeps only those charts or setups that have been successfully loaded. Pressing
the
STOP
key terminates the load and deletes those charts or setups that may have already been loaded
during this operation.
10.2.2 Storing Data to Disk or Memory
Spectral data, spectrum setups, balance histories, and balance charts may be saved as files and stored
on disk. First, press
STATUS
to be sure that the
Store To
field is set to
DISK
. If it is set to
MEMORY,
subsequent store operations write data to memory instead of to disk. To change the field,
press
SETUP
, use the Arro wkeys to highlight the field, and press the
<CHANGE>
soft key, followed
by
ENTER
.
With the 8500C/C+ in either Balance or Spectrum mode, insert a formatted, writable 3.5-in. double-
sided, double-density disk in the 8500C/C+ disk drive and press
STORE
. The data is written to disk
and given a unique file name based on the current date and time, plus the extension *.BHI (for a
balance history file), *.SPT (for a spectral data file), or *.SET (for a spectrum setup file). See
Append ixC Balance History Files” for a description of the balance history file format, and
Append ixB Spectral Data File Format” for a description of the spectral data file format. If you are
saving a balance chart or spectrum setup, you are first asked to rename the chart or setup before writing
it to disk (see Se ction10.2.3 “Storing Balance Charts to Disk” on page 10-5). If you are saving a
balance history, the chart name is stored along with the other history data. You may wish to first
rename the chart in order to better identify the history file. Spectrum setups are written to memory, as
well as to disk.
If an error occurs during a store operation, the 8500C/C+ displays an error message screen and
attempts to explain the problem. In most cases, errors are caused by one or more of the following
conditions:
• There is no disk in the disk drive.
• The disk is not properly formatted.
• The disk is write-protected or otherwise not writable.
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