Panametrics GF868, Programming Manual, Page: 105 / 167

12/1/99
3-12 Logging Data
The MEM Sub-Menu
(cont.)
If it is undesirable to delete old logs to free up additional memory, the
number of pages pending may be reduced by altering the parameters
of one or more of the currently active logs. For example, either
increasing the time increment or decreasing the total logging time
will reduce the memory requirements for a log file. Use the following
equations to calculate the number of pages used by a log:
(3-1)
(3-2)
Consider a log that is set to run for 24 hours with a time increment of
3 minutes. From Equation 3-1 above, the number of records = (24 x
60)/3 = 480 records. Then, from Equation 3-2 above, the number of
pages = 480/120 = 4 pages. Thus, at least four pages of memory must
be available for this log to run to completion. Notice that either
increasing the time increment to 6 minutes or decreasing the length of
the log to 12 hours would reduce the memory requirement to only 2
pages.
The STOP Sub-Menu
Use the
STOP
sub-menu to terminate a logging process that is
currently active. Press the appropriate side of the
[SCREEN]
key to
activate the desired pane of the display screen, and refer to Figure A-
7 on page A-7 of Appendix A, Menu Maps while completing the
following steps:
Note:
Once a log is stopped it cannot be restarted, but the log
remains in memory. To clear the log from memory, refer to
Chapter 5, Clearing Data, for instructions.
number of records
length of log
time increment
------------------------------------
=
number of pages
number of records
120
--------------------------------------------
=
Ch1 Channel Label site file
É
The default power up screen is in
BIG mode. Access the Log Menu
by pressing the
[LOG]
key.
Velocity Ft/s
6.95
(error codes appear here)
VEL VOLUM +TOTL -TOTL
OPEN Start
Enter the assigned password and
press
[ENT] . If the security
feature has been deactivated, this
prompt does not appear. See
Chapter 1, Programming Site
Data, for details.
ENTER PASSWORD
Password