Installation Instructions - Endress+Hauser Flowphant T DTT31 Operating Instructions Manual

Installation

3. 4 Installation instructions

3.4.1 Installation conditions
!
Note!
The sensor requires a fully developed flow profile for correct monitoring. For this reason, steady-
ing sections (5x DN) must be provided in the pipe after a pump, pipe bend, internal fittings and
cross-sectional changes.
"
Caution!
Do not turn the device into the process connection thread at the housing. Always install the
device at the spanner flats (Fig. 4, item 1). Use a suitable open-ended wrench for this task (see
Table → Kap. 3. 3).
• The sensor tip should be completely surrounded by medium.
• Position the sensor tip in the area of maximum fluid velocity (pipe
center).
• Minimum sensor immersion length: L
Orientation
• For horizontal pipes: lateral installation.
!
Note!
Installation from above only if the pipe is completely filled with
medium.
• For vertical pipes: installation in the ascending pipeline.
"
Caution!
• Do not install in down pipes open towards the end.
• The sensor tip should never touch the pipe wall.
8
≥10 mm.
i
Fig. 4: Installation conditions
Fig. 5: Correct orientation
Fig. 6: Incorrect installation!
DTT31, DTT35
A0006976
A0006977
A0006978
Endress+Hauser