User's Manual

Commissioning
Instruction manual 973 SmartRadar LT Page 21
Item Name Description
W2
= Protection level 2 Enter password 2 to alter the required settings.
BD
= Stilling well diameter Floating point format; units: metres.
This item contains the internal diameter of the stilling well
(only if the SmartRadar LT is installed on a stilling well).
OM
= Radar operational mode This item contains one character, which determines the
operational mode and depends on the antenna.
F for free space measurement;
S for stilling well measurement;
PR
= Position radar Format according to item
LD
. Default: +027.0000 (m).
This item represents the vertical distance from the Radar
reference point to the tank zero (mostly the datum plate). When
not exactly known, estimate the distance within ±1 metre (3 ft).
When setting the SmartRadar LT reference level
(see section 3.4.3), the value in item
PR
is overwritten.
SF
= Maximum safe fill height Format according to item
LD
. With this item the gauge checks if
the programmed upper measuring range is valid.
The following relation is valid:
SF
< (
PR
-
AU
).
If a conflict is detected, a warning is given (
EE
: 07901).
AB
= Nozzle length Format according to item
LD
. Default: +000.0000 (m).
Give in this item the nozzle length. When the antenna is
installed inside the nozzle, a correction is automatically applied.
OR
= Offset to roof Format according to item
LD
. This items represents the
average distance from the radar nozzle to the roof.
The SmartRadar LT uses this information to determine the
position of double reflections (product surface - roof - product
surface - antenna).
4V
= Level calc. decision switch This item contains 10 positions. The 7 position enables or
th
disables the AdvancedDSP routines:
F enables AdvancedDSP level calculation
- disables AdvancedDSP level calculation
Refer to section ‘AdvancedDSP level calculation routine’ for
information when to enable it, and to section 3.4.8 for other
settings of item
4V
.
AC
= Averaging constant Two digits, default value: 70.
Averaging constant for output filter of radar innage (item
RI
)
and radar ullage (item
RU
) value.
The higher the value for item
AC
, the more damping on the
radar innage and radar ullage values.
EX
Exit After the exit command, the 973 SmartRadar LT will perform a
controlled software reset, and start up with disabled access to
protected levels.