DigitalFlow™ DF868 Multipurpose Ultrasonic Liquid Flowmeter Programming Manual (2-Channel)
85
Chapter 5. Clearing Data
Chapter 5. Clearing Data
5.1 Introduction
This chapter explains how to purge the Model DF868’s memory of various measurement totals and/or files. The
Clear
Menu
, which is accessed by pressing the
[CLR]
key on the keypad, is divided into three submenus:
•
TOTAL
- used to reset totalized measurement values
•
SITE
- used to remove site parameter files from memory
•
LOG
- used to clear log files from memory.
Note:
For detailed information on creating a log file, see Chapter 3,
Logging Data
. For detailed information on
creating a site file and for setting up the stopwatch totalizer, see Chapter 1,
Programming Site Data
.
For purposes of this discussion it is assumed that the left pane of the data display screen is active. If the right pane of
the data display screen is active, all of the instructions remain the same, except that any references to the
[F1]-[F4]
keys should be replaced by the
[F5]-[F8]
keys.
IMPORTANT:
None of the clearing procedures available via the Clear Menu can be undone. Be very sure that the
exact consequences of a selected option are thoroughly understood before proceeding.
Refer to Figure 17 on page 104, and proceed to the desired section for detailed instructions. Each submenu may be
followed in the sequence shown or the [
and [
keys may be used to scroll through the prompts.
5.2 Clearing Totalized Data
The
TOTAL
submenu permits the user to reset volumetric totals to zero and to reset the stopwatch totalizer. Press the
appropriate side of the
[SCREEN]
key to activate the desired pane of the display screen, and complete the following
steps:
1.
To access the
Clear Menu
, press the
[CLR]
key.
a.
If you have activated the security feature (see Chapter 1,
Programming Site Data,
page 50 for details), enter the
assigned password and press
[ENT]
.
2.
Press
[F1]
=
TOTAL
.
3.
Press
[F1]
to abort the procedure or press
[F2]
to clear all volumetric totals and reset the stopwatch totalizer. In
either case, the initial
Clear Menu
prompt returns.