Seite 14 von 21
max. 30°
Installation in the container
The Float Switches are installed in the container using flanges or mounting plugs. (See the type
designation on the product for the specific design of your Float Switch)
Prior to installation, make sure the installation opening in the container agrees in size and dimensions with
the installation option of the Float Switch.
Depending on the design of the Float Switches AL-ADF the
guide tube is inserted into the container from the outside.
Installation should be vertical. To ensure proper
functioning, the angle of installation must not deviate
exceed 30° from the vertical position.
The guide tube of the Float Switches AL-ADF is inserted
into the container from the outside through the installation
opening. It is then fixed by tightening the thread or the
screws for flanged versions.
In Float Switches featuring a mounting plug,
the thread must be screwed in for the entire
length of the thread.
Float Switches featuring flanges must be
installed using suitable bolts, washers and nuts.
Please comply with the maximum torque ratings of the
bolts / screws used when tightening them down.
Use suitable gaskets. Make sure the gasket material is
resistant to the medium and its vapours as well as to the
expected temperature and pressure loads.
Designs, where the
float’s diameter is lager then the core
opening must be installed with the float removed form the
guide tube.
Procedure:
1. Mark the upper side of the float (e.g. with "top")
2. Mark position of the set collar to be removed
3. Remove set collars and teflon washer
4. Remove floats
5. Install Float Switch AL-ADF
6. Position the floats, set collars and teflon washer from inside the container. Mind the marked positions!
The purpose of the teflon washer is to avoid potential ignition sparking if the float
should fall against the set collar. Operating the equipment without teflon washer is not
permitted.
8
Terminal Box
Cable gland
Process Connection
Gasket
Guide tube
Float
Teflon washer
Set collar or Tension clamp
Abb. Float
Switch…
