18 Settings
FLUXUS F501
18.2 Measurement settings
123
UMFLUXUS_F501V1-3EN, 2020-06-30
18.1.7
Settings relating the fluid pressure
It is possible to set whether the absolute or the relative pressure is to be used:
• Select
on
or
off
.
• Press ENTER.
If
on
is selected, the absolute pressure p
a
will be displayed/input/transmitted.
If
off
is selected, the relative pressure p
g
will be displayed/input/transmitted.
p
g
= p
a
- 1.01 bar
The pressure and its unit of measurement will, e.g., be displayed in the program branch
Parameter
. It is followed by the
selected pressure, indicated in parentheses:
a – absolute pressure
g – relative pressure
18.2
Measurement settings
• Select the menu item
Special Funct.\SYSTEM settings\Measuring
.
• Press ENTER.
• Select
yes
if the measured sound speed is to be compared to the theoretical or expected value.
• Press ENTER.
The difference
δ
c = c
mea
- c
stored
between the two sound speeds will be displayed in the lower line during the measurement.
c
stored
is the sound speed of the reference fluid stored in the database.
• Press key
during the measurement to scroll to the display of
δ
c.
• Select a list item:
–
off
: profile correction 1.0
–
on
: profile correction 2.0 at ideal inflow conditions (default)
–
With disturbance
: profile correction 2.0 at non ideal inflow conditions
• Press ENTER.
• Select
normal
to display and transmit the profile corrected flow values,
uncorr.
to display and output the flow values
without flow profile correction.
• Press ENTER.
For further information, see section 16.3.
Special Funct.\...\Dialogs/Menus\Pressure absolut
Special Funct.\SYSTEM settings\Measuring
Notice!
The settings will be stored at the end of the dialog. If the menu item is quit by pressing key BRK, the changes will not
be stored.
Special Funct.\...\Measuring\Compare c-fluid
Special Funct.\...\Measuring\ProfileCorr 2.0
Special Funct.\...\Measuring\Flow Velocity
Fluid pressure
1.00 bar(a)