KROHNE OPTIFLEX 1100C EN - Manual (Page 15)

INSTALLATION
3
15
OPTIFLEX 1100 C
www.krohne.com 01/2012 - 4001721801 - HB OPTIFLEX 1100 R01 en
Stilling wells
Installation in tanks that contain one liquid
• Make sure that the stilling well has a vent above the maximum level.
• If the probe has a counterweight, make sure that there is enough space between the
counterweight and the wall of the stilling well.
Bypass chambers
Installation next to tanks that contain one liquid
• The bypass chamber must have a process connection that is above the maximum level of
liquid.
• The bypass chamber must have a process connection that is below the lowest measured level
of liquid.
3.1.6 Horizontal cylindrical tanks
The installation requirements and procedures for vertical tanks are also applicable to horizontal
cylindrical tanks.
CAUTION!
Installation requirements
• The standpipe must be made of metal.
• The standpipe must be straight. There must be no changes in diameter from the device
process connection to the bottom of the standpipe.
• The standpipe must be vertical.
• Recommended surface roughness: <
±
0.1 mm / <
±
0.004
¨
.
• Stilling well only: The bottom of the stilling well must be open.
• Adjust the probe to the center of the standpipe.
• Make sure that there are no deposits at the bottom of the standpipe which can cause
blockage of the process connections.
• Make sure that there is liquid in the standpipe.
CAUTION!
Calculate volume and mass values carefully for the strapping table. Volume does not increase in
the same proportion as level.
Figure 3-8: How to install the device in a horizontal cylindrical tank