Installation
Turbimax W CUS65
8
Hauser
3.2.2
Wall distance
Installing the sensor in pipework or very close to the wall can cause backscatter which results in a
higher sensor signal.
The effective wall or bottom distance can be optimized by aligning the flat sensor side.
!
Note!
The following generally applies: The lower the turbidity to be measured, the darker the vessel walls
should be and the greater the wall distance should also be.
3.2.3
Pipe installation
The following figure illustrates various installation positions in pipes and indicates whether they are
permitted or not.
a0009132
Fig. 3:
Orientation and installation positions (with retractable assembly CUA451)
• The pipeline diameter must be at least 100 mm (4") if reflective materials (e.g. stainless steel) are
used.
• Install the sensor in places with uniform flow conditions.
• The best installation location is in the ascending pipe (it. 1). Installation is also possible in the
horizontal pipe (it. 5).
• Do not install the sensor in places where air may collect or foam bubbles form (it. 3) or where
suspended particles may settle (it. 2).
• Avoid installation in the down pipe (it. 4).
• Pay attention to the correct installation angle
α
(s. below).
a0008118
Fig. 2:
Effect of the distance from the wall or bottom
A
Dark wall or bottom (non-reflective)
B
Bright wall or bottom (reflective)
FNU
100
10
5
10
15
20
0
1
0.1
0.01
A
B
2
4
6
8
cm
inch
4
5
2
2
1
3
3
