KROHNE OPTIWAVE 5200 C_F EN - Manual (Page 31)

INSTALLATION
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OPTIWAVE 5200 C/F
www.krohne.com 07/2013 - 4001904902 - HB OPTIWAVE 5200 R02 en
Stilling wells - general notes
Installation in tanks containing one liquid and foam
• Drill an air circulation hole (max. Ø10 mm / 0.4¨) in the stilling well above the maximum level.
• Remove the burr from the hole.
Installation in tanks containing one liquid or more without foam
• Drill an air circulation hole (max. Ø10 mm / 0.4¨) in the stilling well above the maximum level.
• Drill 1 or more liquid circulation holes in the stilling well (if there is more than 1 liquid in the
tank).
i These holes help the liquid to move freely between the stilling well and the tank.
• Remove the burr from the hole.
Stilling wells - reference point
We recommend that you attach a flat cruciform target at the bottom of the stilling well. It must
have a width of 1/3 of the internal diameter of the stilling well tube. This target is the limit of the
measuring range in the stilling well.
Figure 3-17: Reference point in the stilling well
a ≥ 1/3 × ШD