KROHNE OPTIWAVE 7300C EN - Manual (Page 65)

OPERATION
6
65
OPTIWAVE 7300 C
www.krohne.com 03/2014 - 4000172405 - HB OPTIWAVE 7300 R07 en
C.1.16 Multiple
Reflections
Multiple reflections will cause the
device to display smaller readings.
Objects in the tank, sharp corners,
installation of the device on a large
nozzle or at the centre of a dome roof
can cause multiple reflections. A very
calm surface or a tank with a small
convex or flat roof can also cause
multiple reflections.
Yes, No No
C.1.17 Empty Spect.
OnOff
This function starts and stops
interference signal filter. Interference
signals are the result of fixed and
moving obstacles inside the tank. If you
must do a spectrum analysis, record
an empty spectrum first. Go to the
"Empty Spectrum" menu (A.1.3.0) in
the Quick Setup list.
On, Off Off
C.1.19 Units For
Tables
Sub-menu for volume and mass
conversion operations.
C.1.19.1 Table Length
Unit
The length unit used in the conversion
table. If "Free Unit" is selected, the
device uses the unit name in menu
item C.5.1.7.
m, cm, mm, inch, ft, Free Unit m
C.1.19.2 Conversion
Unit
The volume or mass unit used in the
conversion table. If "Free Unit" is
selected, the device uses the unit name
in menu item C.5.1.9.
m3, L, US gal, GB gal, ft3, bbl,
Tons, Kg, US Tons, GB Tons,
Free Unit
m3
C.1.20 Product
Density
A value greater than 0 that is used with
a volume conversion table to start the
mass calculation. This menu item is
not available if you have selected a
mass unit.
0…20000 kg/m3 0 kg/m3
C.1.21 Volume / Mass
Table
The device uses this table to display
volume and mass readings. Give the
number of entries on the table. Push
[^ ^ ^ ^]. Type in the level and
corresponding volume / mass values.
Number of entries
min.-max: 0…50
No table. Table
units are
selected in
menu items
C.1.19.1 and
C.1.19.2.
C.1.22 Linearisation
Table
The device uses this table to increase
on-site accuracy. Give the number of
entries plotted. Fill the tank. Make a
reference measurement and type in
the correct value next to the device
reading. For more data, refer to
Linearisation on page 69.
Number of entries
min.-max: 0…50
0
C.3 Output 1 (HART)
C.3.1 Output
Function
Select an output function to scale the
current values. This is not displayed in
the operator mode.
Level, Distance, Volume
(Mass), Ullage Volume (Ullage
Mass), Reflection
Level
C.3.2 4 mA Setting Give a measurement value to 4 mA. min.-max: 1 0 m / 0 ft
C.3.3 20 mA Setting Give a measurement value to 20 mA. min.-max: 2 Depends on the
output function
C.3.4 Output Range Sets the effective range of output 1
either with or without over-run.
min.-max: 3.8…20.5 mA
(NAMUR), 4…20 mA
4…20 mA
Menu
No.
Function Function description Selection list Default