17 SuperUser mode
FLUXUS F808
17.6 Detection of long measurement failures
145
UMFLUXUS_F808V2-2EN, 2020-06-25
It is possible to display the valid range for the sound speed (
SS
) in the lower line within the program branch
Measuring
during the measurement. The second value (here: 2146 m/s) corresponds to the upper limit at the operating point.
17.6
Detection of long measurement failures
If there are no valid measured values during a long time interval, new increments of the totalizers will be ignored. The val
-
ues of the totalizers remain unchanged.
In the SuperUser mode, it is possible to set the time interval.
• Select
Special Funct.\SYSTEM settings\Measuring\Miscellaneous
.
• Press ENTER until the menu item
Do not total. if no meas.
is displayed.
• Enter the time. If zero is entered, the default value of 30 s will be used.
• Press ENTER.
17.7
Number of decimal places of the totalizers
The totalizer values can be displayed with up to 11 places, e.g.,
74890046.03
. In the SuperUser mode, it is possible to
define the number of decimal places.
• Select
Special Funct.\SYSTEM settings\Measuring\Miscellaneous
.
• Press ENTER until the menu item
Total digits
is displayed.
• Select one of the following list items:
–
Automatic
: dynamic adaptation
–
Fixed to x digit
: x decimal places (range: 0...4)
• Press ENTER.
Example
fixed upper value of the sound speed (
thresh.
): 2007 m/s
offset
: 600 m/s
value of the sound speed curve at the operating point: 1546 m/s
As 1546 m/s + 600 m/s = 2146 m/s is greater than the fixed upper value 2007, this value will be used as the upper limit
of the sound speed when the plausibility of the signal is evaluated.
Fig. 17.1: Display of the valid sound speed range
Notice!
The defined upper limit of the sound speed remains activated after the deactivation of the SuperUser mode.
Special Funct.\SYSTEM settings\Measuring\Miscellaneous\Do not total. if no meas.
Special Funct.\SYSTEM settings\Measuring\Miscellaneous\Total digits
GAIN=91dB
SS=1038/2146 m/s