KROHNE OPTIWAVE 5200 C_F EN - Manual (Page 72)

6
OPERATION
72
OPTIWAVE 5200 C/F
www.krohne.com 07/2013 - 4001904902 - HB OPTIWAVE 5200 R02 en
2.5.0 APPLICATION
2.5.1 TANK TYPE The conditions in which the device is used. If
the surface of the product is flat, select
"Storage". If the surface of the product is
disturbed, select "Process". If the surface of
the product is agitated with vortexes and
foam, select "Agitator".
Storage, Process,
Agitator
Process
2.5.2 TRACKING VEL. Maximum tracking velocity. This value must
agree with the maximum rate of change of
the level of the liquid in the tank.
min-max:
0.1…10.0 m/min
0.5 m/min
2.5.3 Er PRODUCT For measurement in TBF mode only. The
device automatically calculates the level
based on the product ε
r
. If you select "TBF
Partial" or "TBF Full" in menu item 2.5.4
MEASUR.MODE, you can change the ε
r
value
manually to adjust readings.
min-max:
1.100 to 10.000
2.000
2.5.4 MEASUR.MODE The device uses the dielectric constant (ε
r
) of
the tank contents to monitor level. In direct
mode (if the dielectric constant is high), the
level signal is a reflection on the surface of
the tank contents. If the dielectric constant is
low, the device uses TBF mode. The device in
TBF mode uses the radar reflection on the
bottom of the tank (the signal goes through
the tank contents). The tank must have a flat
bottom for the device to operate correctly in
TBF mode. This menu item is set by default to
"Direct" for tank contents with an ε
r
>1.8. If ε
r
is very low (<1.6), use "TBF Full". If ε
r
is low
(ε
r
= 1.5...1.7), use "TBF Partial" mode. "TBF
Partial" is an automatic mode that lets the
device make a selection between "Direct
mode and "TBF" mode. If you use "TBF Full"
or "TBF Partial", enter the dielectric constant
in menu item 2.5.3 Er PRODUCT. Refer also
to "Measuring principle" on page 99.
Direct, TBF Partial,
TBF Full
Direct
2.5.5 OVERF. ENAB. If this function is in operation, the device will
monitor the level even if it is in the blocking
distance. The reading shown on the display
stays fixed at the blocking distance if the level
is higher than the blocking distance. The
output will show that the tank is full. An error
is recorded by default.
If this function is not in operation, the device
looks for the largest signal between the
process connection and the tank bottom.
YES, NO NO
2.5.6 MULT.REF.EN. Multiple reflections will cause the device to
display smaller level readings. Objects in the
tank, sharp corners, installation of the device
on a large nozzle or at the centre of a dome
roof, and low dielectric products (ε
r
= 1.8...5)
can cause multiple reflections. A very calm
surface or a tank with a small convex or flat
roof can also cause multiple reflections.
If this function is in operation, the device
looks for the first signal peak below the
process connection. This signal peak is then
used to measure the level of the tank
contents. If this function is not in operation,
the device looks for the largest signal below
the process connection.
YES, NO NO
Menu
No. Function Function description Selection list Default