Georg Fischer Piping Systems Ltd CH-8201 Schaffhausen
Phone +41 (0)52 631 30 26 / info.ps@georgfischer.com /
www.gfps.com
GFDO 6382_4 (08.14)
© Georg Fischer Rohrleitungssysteme AG
CH-8201 Schaffhausen / Switzerland,
2014 Printed in Switzerland
10 Installation
Checking the installation conditions
Are the working pressure and temperature values being observed?
Checking the mounting position
The tuning fork switch can be mounted at almost any angle in the tank. The requirements
are as follows:
The liquid can flow out of the sensor gap.
Turbulence from around inlet/outlet valves or agitators must be avoided.
The distance between the sensor gap and tank
walls (other fittings in the tank) must be at least
x = 5 mm to ensure that no pockets of air or liquid
can form.
The threaded guide should stop as flush with the
wall of the tank as possible to ensure that no
pockets of air or liquid can form.
When mounting on pipes, the sensor gap must
always be aligned in parallel with the direction of
flow.
Mounting the tuning fork switch mechanically
Make sure that the thread in the tank is free of contamination.
If the tuning fork needs to be positioned, use PTFE tape or
an equivalent pipe sealing tape.
Otherwise install the gasket, supplied.
When mounting, protect the tuning fork switch against mechanical damage.
Carefully push the tuning fork switch into the opening and tighten on the hexagonal
collar (SW41) so that the gap is accurate. Use the marking (1) on the hexagonal collar
as a guide.
Check whether the connection is tight.
Carefully turn the housing by hand (max. 300°) so that the glands are pointing in the
direction desired.
Connecting the tuning fork switch electrically
Ensure that the voltage values for the tuning fork switch correspond to those for the
system.
Makesure that the connectioncable is de-energized.
Carefully screw the housing cover and the glands (7, 8) off and set them aside on a
clean surface.
Do not connect AC and DC voltages to a common cable.
Do not connect low potential and supply voltages to a common cable.
Thread the supply cable with outside diameter 8 –15 mm in.
Fasten the separate wires in the appropriate terminal sockets with screws.
For the connection to ground use the grounding screw (9) on the housing or the
internal ground connection (4).
Position the glands in place and carefully tighten so that protection rating IP67 is
assured.
Setting the mode
Position the housing cover in place and carefully tighten so that protection rating IP67 is
assured.
Route the cables to the connection point and secure them at regular intervals using
cable ties or similar.
The tuning fork switch is operational once the supply voltage has been switched on.
The switching process can be tested as follows:
-Immerse the sensor in a beaker of water.
-The switching output is switched.
11 Ordering information
Stainless steel
1 SPDT relay,
PBT housing, 1"
12 Dismantling
Make sure that the connection cable is de-energized and can be freely rotated.
Make sure that the tank is depressurized and has been drained to a level that is at
least below that of the sensor mounting position.
Leakage of media harmful to health and the environment possible!
Risk of personal injury and damage to the environment caused by these media.
Wear the protective clothing required.
Collect leaking media and dispose of them pursuant to local regulations. Consult
the safety data sheet.
13 Disposal
Before disposing of the different materials, separate them into recyclables, normal
waste and special waste.
Comply with local legal regulations and provisions when recycling or disposing of the
product, the individual components and the packaging.
Comply with national regulations, standards and guidelines.
Parts of the product may be contaminated with media that are harmful to health and the
environment meaning that simple cleaning is not sufficient!
Risk of personal injury and damage to the environment caused by these media.
Prior to disposing of the product:
Collect leaking media and dispose of them pursuant to local regulations. Consult
the safety data sheet.
Neutralize any media residue that is present in the product.
Separate materials (plastics, metals, etc.) and dispose of them pursuant to local
regulations.
A product marked with this symbol must be sent for separate
collection of electrical and electronic devices.
If you have questions regarding the disposal of the product, please
contact your national GF Piping Systems representative.
14 Disclaimer
The technical data are not binding. They neither constitute expressly warranted
characteristics nor guaranteed properties nor a guaranteed durability. They are subject to
modification. Our General Terms of Sale apply.
