KROHNE OPTIWAVE 7300 C Handbook page 21

OPTIWAVE 7300 C
CAUTION!
Installation requirements
The stilling well must be electrically conductive.
•
The inside diameter of the bypass chamber must not be more than 5 mm / 0.2" over the
•
diameter of the antenna (for a high-dielectric constant liquid).
The stilling well must be straight.
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The stilling well must have a surface roughness of
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There must be no sudden changes in internal diameter greater than 1 mm.0.04".
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The bottom of the stilling well must be open.
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Installation in tanks containing one liquid and foam
• Drill a pressure equalization hole in the stilling well above the maximum level.
• Deburr the hole.
Installation in tanks containing one liquid without foam
• Drill a pressure equalization hole in the stilling well above the maximum level of the top liquid.
• Drill more holes along the length of the stilling well. The holes have a minimum diameter of
10 mm/0.4" with a minimum distance of 100 mm/4" between the holes.
These holes help the liquid to move freely.
i
• Deburr the holes.
01/2008 • 4000172401 - HB OPTIWAVE 7300 R03 en
0.1 mm/0.004".
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INSTALLATION
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