User's Manual

90
80
70
60
50
40
30
20
10
0
RB
ZA
ZB
0 2 4 6 8 10 12 [m]
ZP
Obstruction
reflection
14
TI : TK-200SmartRadar Refl. Diagram.
[dB]
08-11-1996 12:32
BA417-1899001-D0
: TK-20006.RD3
:.18739640023
File
SN
10.443
Tank
Zero
Min. Ull
Max. SF.
OE.0.1OS.0.1
OT.0.1
Product
reflection
Commissioning
Instruction manual 973 SmartRadar LT Page 27
Figure 3.8 Example of determining the position of an obstruction zone
Figure 3.8 shows a Reflection Diagram in which an obstruction is found at approximately 8 m level
(6.25 m ullage). The product reflection is found at approximately 3.8 m level (10.44 m ullage).
In this example, the following settings should be selected:
Obstruction zone start at 5.85 m
ullage
(at least 0.4 m before the obstruction reflection).
Obstruction zone end at 6.65 m
ullage
(at least 0.4 m after the obstruction reflection).
Obstruction zone threshold at 5 dB.
Item Name Description
W2
= Protection level 2 Enter protection level 2
OS.0.1
= Obstruction zone 1 start Format according to item
LD
.
In the above example, obstruction zone 1 start should be
programmed as 5.85 m (OS.0.1=+005.8500)
OE.0.1
= Obstruction zone 1 end Format according to item
LD
.
In the above example, obstruction zone 1 end should be
programmed as 6.65 m (OE.0.1=+006.6500)
OT.0.1
= Obstruction zone 1 threshold Format according to standard power format (dB).
In the above example, the threshold of obstruction zone 1 is set
at 5 dB (OT.0.1=+0005.0)
OZ
= Enable / disable obstr. zones Ten ASCII characters; either E (enable) or D (disable) the
obstruction zone. For example: OZ=EDDDDDDDDD
enables the first obstruction zone
EX
Exit Exit protection level