Section 3 Mechanical & Electrical Installation
12
FT205EV Wind Sensors
– User Manual
3 MECHANICAL & ELECTRICAL INSTALLATION
The FT205EV is surface-mounted and optimised for lightweight operation. The sensor uses a Molex Clik-mate
PCB connector (part 505405-0860) and is supplied with a 600mm cable (various lengths available from Molex,
600mm cable part 15135-0806). An adaptor is available and included with the sensor for pipe-mount installation.
Water resistance is achieved using a compression-fit foam gasket secured with M3 screws. The water resistance
is validated using rain tunnel tests at 2.5m of rain per hour using the supplied fixings. The sensor weighs 100g
and the external body material is 3D printed using a graphite and nylon composite.
The surface mount option uses a foam gasket and 3x M3 screws for assembly. Adaptor accessories for pipe-
mount installation are included consisting of a base unit, adaptor, 2x foam gaskets and 6x M3 screws. The pipe
section (Ø 20) is not supplied by FT due to variable customer requirements. The intended bonding scheme for
the pipe is using an epoxy adhesive. Due consideration is required for sensor placement due to the spinning
rotors.
Note: the length of the M3 screws will be dependent on the thickness of the integrated system mount.
Ensure the airflow into the sensor is not obstructed or influenced by nearby objects.
•
See the safety instruction requirements on page 5
•
The wind sensor installation must be properly designed to ensure the correct operation of the
sensor. This section is for guidance only. It is the responsibility of the designer and installer to
ensure that the installation and its design is fit for purpose. Please see Disclaimer Section 1.4
•
Caution
– Excessive length or tightening of the M3 screw may cause damage to the sensor
and threads
3.1 FT205EV Sensors
3.1.1
Mechanical & Electrical Integration
The sensor measures the effects of airflow through the sensor cavity on a resonating acoustic signal. The sensor
can be rotated to ensure alignment with a standard reference, typically Magnetic North, or the integrated compass
can calculate this automatically.
For angular alignment a North datum feature is marked on the sensor with an ‘N’,
when the wind blows towards the N the sensor reports 0° (unless the compass feature is enabled).
Figure 3: The FT205EV Sensor
– Mounting Examples
The mounting surface should be smooth and flat. Textured, uneven or damaged surfaces will reduce the quality
of the water ingress protection.
