EN
FFU
Operating instructions
4 Commissioning
8013863/10L9 /2018-08-01 © SICK AG • Fluid sensors • Germany • Subject to change without notice
31
Caused by the material characteristics of PSU FFU has a limited resistance against UV rays. Remind
this when mounting Flowmax outdoor.
4.2 Mounting
The measuring device is mounted in the pipeline using a process connection. In order to ensure optimal gas
venting, we recommend mounting the FFU vertically in the pipe. The device should not be mounted behind
an output valve, or it might run idle. To prevent outgassing and bubble formation in the media during the
flow measurement, the FFU should always be mounted on the pressure side of the system pump.
If the device cannot be mounted vertically, the pipe in which the measuring device is located should
always be full. Preventing the formation of gas bubbles in the FFU measuring channel will aid optimal
measurements.
For applications with a „Clean Design“ when complete drain of the measuring tube is needed, we
recommend to mount the flow meter in vertical position. When flow meter is mounted horizontal
caused by the internal geometry of the device there might be a rest of liquid inside.
Attention:
The process connections from the FFU are offset by 5 mm (see dimensional drawing on
page 43-45)
Mounted FFU must alway be mechanically stress free. Strong tension in the pipe system can lead to
damage to the devise. Shocks or mechanical loads can affect the measurement accuracy of the measu-
ring device. If the FFU must be additionally secured due to the presence of vibrations or mechanical
motion, two mounting clamps can be mounted to the inlet and outlet of the measuring device.
FFU with mounting clamps