User Manual
6
OPERATION
54
OPTIWAVE 7400-24 C
www.krohne.com 12/2015 - 4004901901 - MA OPTIWAVE7400-24 R01 fr
6.1 User modes
6.2 Normal mode
This mode shows measurement data. Use the table that follows:
• for the selection of the measurement type (level, distance, percentage, conversion and
reflection) and
• for the selection of the measurement units
Some measurement types will only be available if the device has the correct parameters entered
in the configuration mode.
Measurement type definitions
Normal mode
Normal modeNormal mode
Normal mode This mode displays measurement data. For more data, refer to
Normal
mode
on page 54.
Configuration mode
Configuration modeConfiguration mode
Configuration mode Use this mode to view parameters, commission the device, create tables
for volume or mass measurement, change critical values to measure in
difficult process conditions. To get access to supervisor menu, refer to
Protection of the device settings
on page 70. For more data on menu items,
refer to
Function description
on page 60.
Measurement type Description Available units
LEVEL This is a display and an output function option.
It is the height from the bottom of the tank to
the surface of the liquid (Tank height -
Distance).
m, cm, mm, in (inches), ft
(feet)
DISTANCE This is a display and an output function option.
It is the distance from the face of the flange (or
thread stop) to the surface of the liquid.
m, cm, mm, in (inches), ft
(feet)
CONVERSION This is a display and an output function option.
It gives the volume or mass of the tank
contents. This data is available if you prepare a
volume or mass table in configuration mode.
For data on how to prepare the conversion
table, refer to
How to configure the device to
measure volume or mass
on page 73. If the
device is used with PACTware™ software, it
can also show flow rate in a channel. 6 flow
profiles are available in the menu: Parshall
(ISO 9826), Venturi Rectangular (ISO 4359),
Venturi Trapezoidal (ISO 4359), Venturi U
(ISO 4359), V-Notch (ISO 1438) or Rectangular
Notch (ISO 1438).
m3, L, gal (US gallons), ImpG
(Imperial gallons), ft3, bbl (oil
barrel), kg, t, Ston, Lton, m,
cm, mm, in, ft, m3/h, ft3/h
ULLAGE CONV. This is a display and an output function option.
It gives the empty volume or remaining mass
that can be put in the tank. This data is
available if you prepare a volume or mass table
in configuration mode. For data on how to
prepare the conversion table, refer to
How to
configure the device to measure volume or
mass
on page 73.
m3, L, gal (US gallons), ImpG
(Imperial gallons), ft3, bbl (oil
barrel), kg, t, Ston, Lton, m,
cm, mm, in, ft, m3/h, ft3/h
REFLECTION This is a display and an output function option.
It is the percentage of the emitted radar signal
which makes a reflection on the surface of the
liquid and is received by the device.
%