30
..... Additional setup menus within the DATA LOG submenu
2.
Interval
menu (81): Data log intervals must be entered in whole seconds, with a minimum interval of 1
second (Figure 3.16-F, below).
F
IGURE
3.16-F
3.
View
menu: Use this menu to view which log files are stored in memory, the file sizes, and amount of
log memory still available. Additionally, use this menu to delete log files:
a.
Access Menu 80, and select
View
.
b.
Scroll through the log file with the
UP/DOWN ARROWS
to locate the file you want to delete.
c.
Press
ENTER
, and Figure 3.16-G (below) is displayed.
d.
Press
5
, and Figure 3.16-H (below) is displayed.
e.
Press
.
(decimal point), and Figure 3.16-I (below) is displayed informing you the log is deleted.
F
IGURES
3.16-G
THROUGH
3.16-I (
LEFT
TO
RIGHT
,
TOP
TO
BOTTOM
)
3.17 Additional Setup Menus Within the DIAGNOSTICS Submenu
*Not included in the Quick Setup configuration
The
DIAGNOSTICS
submenu contains various view-only menus which display important diagnostic
parameters that are currently used or calculated by the flowmeter. These parameters are helpful when
configuring or troubleshooting the flowmeter.
1.
Signal Strength/Margin
display (90): Displays the signal strength in percentage and the margin. The
signal strength value displayed is the average of the signal strengths for the upstream and
downstream transducers. Margin is an indicator of signal quality and is generally greater than 5%.
Signal strength is generally greater than 3% under good measurement conditions
(Figure 3.17-A,
page 31)
.
2.
Delta Time/Fluid Sound Speed
display (91): Displays the value for DeltaT and the fluid sound speed as
measured by the flowmeter. DeltaT is the difference between the upstream and downstream travel
times, expressed in nanoseconds (ns)
(Figure 3.17-B, page 31)
.
