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18 SuperUser mode
FLUXUS F60*
18.5 Upper limit of the sound speed
179
UMFLUXUS_F60xV5-0EN, 2017-10-16
• Enter for each measuring channel the max. signal amplification. Enter zero to measure
without a limit of the signal amplification.
• Press ENTER.
The current value of the amplification (
GAIN
=) can be displayed in the upper line in the
program branch
Measuring
. If the current value of the amplification is higher than the
max. amplification, the current value is displayed with
→
FAIL!
.
18.5
Upper limit of the sound speed
When the plausibility of the signal is evaluated, it will be checked whether the sound
speed is within a defined range. The used upper limit of the fluid sound speed is calculat-
ed from the greatest of the following values:
• fixed upper value, default: 1848 m/s
• value of the sound speed curve of the fluid at the operating point plus offset, default off-
set: 300 m/s
In the SuperUser mode, the values can be defined for fluids that are not contained in the
data set of the transmitter.
• Select
Special Funct.\SYSTEM settings\Measuring\Miscellaneous
.
• Press ENTER until the menu item
Bad soundspeed
is displayed.
• Enter for each measuring channel the fixed upper limit of the sound speed. Enter zero
to use the default value of 1848 m/s.
• Press ENTER.
Special Funct.\SYSTEM settings\Measuring\Miscellaneous\
Gain threshold\Fail if > 90 dB
Notice!
The limit of the signal amplification is still active after the deactivation of the SuperUser
mode.
Special Funct.\SYSTEM settings\Measuring\Miscellaneous\Bad
soundspeed
Special Funct.\SYSTEM settings\Measuring\Miscellaneous\Bad
soundspeed\thresh.