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Installation
• The sensor tip must be completely surrounded by the
medium
• Position the sensor tip in the area of maximum flow
velocity (pipe center)
• Minimum sensor immersion length
L
≥ 10 mm (0.4 in).
i
Orientation
• For horizontal pipes: lateral installation. Installation
from above only if the pipe is completely filled with
medium
• For vertical pipes: installation in the ascending pipe
• For DTT35: install at an angle of at least 3 ° for self-
draining
NOTICE
If the device is installed incorrectly this can result in
incorrect measurements!
‣
Do not install in down pipes open towards the end.
‣
The sensor tip should never touch the pipe wall.
10
v
m
2
Installation instructions (example)
= 3°
3
Correct orientation
4
Incorrect installation!
Flowphant T DTT31, DTT35
%
1
L
i
A0006976
A0006977
%
A0006978
Endress+Hauser
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