Endress+Hauser Memosens COS51E, Руководство по эксплуатации

Страница: 16 / 48

Mounting Memosens COS51E
16 Hauser
3. Install the suspended or immersion assembly in the process
4. Supply power to the transmitter
NOTICE
Installation fault
Cable open circuit, loss of sensor due to cable separation, unscrewing of membrane cap in
the assembly!
‣
For immersion operation, the sensor must be installed in an immersion assembly (such
as CYA112). Do not install the sensor freely suspended from the cable!
‣
Avoid exerting excessive tensile force on the cable (e.g. through jerky pulling
movements).
‣
Choose a mounting location that is easy to access for later calibrations.
‣
Follow the instructions for installing sensors in the Operating Instructions for the
assembly used.
5.3 Installation examples
5.3.1 Retractable assembly COA451
The assembly is designed for installation on vessels and pipes. This requires the availability
of suitable process connections.
Install the assembly in a place with uniform flow conditions. The pipe diameter must be at
least DN 80.
5
3
4
1
2
3
A
A*
2
4
A0045980
 7 Permissible and impermissible sensor installation positions with retractable assembly
1 Ascending pipe, best position
2 Horizontal pipe, sensor top down, impermissible due to air cushion or foam bubble forming
3 Horizontal pipe, lateral installation with permissible installation angle (acc. to sensor version)
4 Upside-down installation, unsuitable
5 Down pipe, impermissible
A Detail A (top view)
A* Detail A, turned by 90° (side view)
Possible installation angle
Inadmissible installation angle
NOTICE
Sensor not fully immersed in the medium, buildup, upside-down installation
These can all cause incorrect measurements!
‣
Do not install assembly at points where air pockets or bubbles may form.
‣
Avoid buildup on the sensor membrane or remove it at regular intervals.
‣
Do not install sensor upside down.