Reference Manual
00809-0100-4024, Rev BA
September 2005
Rosemount 5600 Series
1-8
Minimum Measuring Distance
The minimum distance the radar can measure depends on the antenna
selected. Typically the level can come as close as 0.79-in. (20 mm) from the
antenna tip, before the software disregards the signal. Being this close to the
antenna may however reduce the measurement accuracy. Table 2-1 on
page 2-3 includes the value Hold Off Distance, which is the default setting for
this minimum distance. It can not be decreased, only increased if needed.
Measuring Close to Tank Bottom
When measuring products with low dielectric constants, i.e. DC range 1.4 -
2.5, some of the radar energy will go thru the product. This could lead to that
the radar will see the Flat Tank Bottom, even though there is a small amount
of product covering the bottom of the tank. This could reduce the accuracy of
the measurement at these lower product levels. This could occur at product
levels of 4-6 inch (100-150 mm) or lower, but depends on the product as well
as the tank bottom type. There are special software settings that could
improve this situation, or alternatively mechanical changes could be
implemented to minimize the influence from the bottom of the tank.
UNPACKING YOUR 5600
TRANSMITTER
Verify that you have received:
•
1 box with the transmitter head. This box also includes a Hook spanner
(used to open the terminal compartments), Reference manual
(00809-0100-4024), Rosemount Radar Master CD-Rom
(0822-0100-4757), and a Quick Installation Guide.
•
1 box with the antenna. This box contains the complete antenna
assembly, including the Waveguide Tube (see page 2-6) which is to be
inserted in the transmitter head foot.
NOTE
If you ordered flanges, the flanges are typically stored at the bottom of the
bigger wooden crate that the transmitter is delivered in. They are held in place
with bolts and nuts.
Summary of Contents for 5600 Series
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Page 208: ...Reference Manual 00809 0100 4024 Rev BA March 2004 Rosemount 5600 Series Index 4 ...
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