KROHNE OPTIFLEX 1300C EN - Manual (Page 23)

INSTALLATION
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OPTIFLEX 1300 C
www.krohne.com 03/2014 - 4000172306 - HB OPTIFLEX 1300 R07 en
3.5.3 Installation requirements for concrete roofs
INFORMATION!
If your device has a coaxial probe, you can ignore these installation recommendations.
CAUTION!
Install coaxial probes in clean liquids that are not too viscous.
Figure 3-9: Installation on a concrete roof
1 The diameter, d, of the hole must be greater than the thickness, t, of the concrete.
2 If the thickness, t, of the concrete is greater than the diameter, d, of the hole, install the device in a recess.