User's Manual
Table Of Contents
- Preface
- Table of contents
- 1 Introduction
- 2 Safety
- 3 Commissioning
- 4 Service and troubleshooting
- Appendix A Article and part numbers
- Appendix B ASCII table
- Appendix C PCB layout
- Appendix D Related documents
- Index
Commissioning
Instruction manual 973 SmartRadar LT Page 25
Changing the settings for the zones and thresholds should be done, on the basis of information from a
reflection diagram. Refer to manual of the Ensite service tool, for a description how to obtain a reflection
diagram.
It should be common practice at installation of the 973 SmartRadar LT gauge to make a reflection diagram
and, if necessary, adjust the zones and threshold settings.
Item Name Description
W2
= Protection level 2 Enter password 2
AZ
= Antenna zone length Format according to item
LD
. If necessary, the antenna zone
length can be altered.
BZ
= Bottom zone offset Format according to item
LD
. As a default, the bottom zone
starts 0.3 m above tank zero. Item
BZ
specifies this start
position. If the bottom position is not exactly known, do not alter
item
BZ
. However, set the bottom zone offset to a larger value
when there is a strong bottom reflection.
ZA
= Antenna zone threshold Format according to standard power format (dB). If required,
the threshold of the Antenna zone can be altered with this item.
Be sure to set the threshold above the antenna reflections.
ZP
= Product zone threshold Format according to standard power format (dB). The product
zone threshold should be set such that:
• product reflections are passed, and
• small meaningless peaks (noise) are suppressed.
It is not meant to block obstructions; these are eliminated (not
selected as product peak) by the peak detection software.
ZB
= Bottom zone threshold Format according to standard power format (dB). The bottom
zone threshold should be set such that:
• product reflections are passed, and
• small meaningless peaks (noise) are suppressed.
It is not meant to block a bottom reflection; the bottom reflection
will be identified by the peak detection software.
EX
Exit Exit protection level
The peak detection software keeps a list of maximum 15 detected peaks above the threshold zones, from
which one of them is the product peak. The number of detected peaks and their position and strength can
be requested by the data items:
5C
,
5D
and
5E
.