PCM-2 Manual.pdf - Voss Associates

Restoring
Default Values
To force a return to the factory default parameters, it is necessary to delete the
modified files from disk. Select the EXIT TO DOS function from the UTILITIES
menu to stop the PCM-2's program and obtain access to DOS (the Disk Operating
System). Type the conunand "DELETE xx.DAT" (followed by RETURN) where
xx is one of the following file names:
PCM2SYS
PCM2DET
PCM2Z0NE
PCM2MESG
This data file contains instrument and system parameters,
user-set passwords, etc. Deleting this file will cause ALL
defaults to be reinstated, including those in the following files.
Contains detector parameters.
Contains sum zone definitions.
Contains default banner-line message.
Once the desired file(s) have been deleted, press and hold both the CTRL and
ALT shift keys, then simultaneously type the DEL key to re-boot the instrument.
When the program offers to assign defaults or use the last set of values, select the
defaults. Once this has been done, it is necessary to completely re-calibrate the
PCM-2 or key in the correct values since all efficiencies, voltages, and other
parameters will have been reset.
If the user-defined high-level system password is ever lost, another computer may
be used to delete the data files and thus reset the system to the default passwords
of 0000 (low-level) and 9999 (high level). Unfortunately, it will be necessary to
re-enter all operating parameters.
Software Updates
Update diskettes are shipped without the above data files, however the latest set of
parameters may be recovered from the front panel board's memory. Simply eject
the old diskette from the drive (located inside the electronics enclosure), insert the
new diskette, then re-boot the system by pressing the CTRL-ALT-DEL key
combination. When asked which parameters to use, choose to retrieve parameters
from the Front Panel Board to create a new set of data files on the diskette.
PCM2.MANI REV AI April 1995 2-11