Section 3
Installation
22
FT702LT Flat Front Wind Sensor Manual
Cleaning:
The measurement cavity has a special coating which helps to prevent water building up. When water
enters the measurement cavity the surface helps to wash away dust and debris which may have settled. If any
debris is present this can be removed by gently rinsing the measurement cavity surface with distilled water
using a laboratory wash bottle or similar. Please note excess water droplets can be removed by lightly blowing
or shaking the sensor.
Do not use cleaning chemicals to clean the sensor. If washing a nearby item protect the sensor with a suitable
cover. Ensure the cover is removed before re-enabling the wind data survey.
Do not scrape or scratch the surfaces whilst rinsing.
Under no circumstances
should objects be inserted
inside the measurement cavity as this can cause irreparable damage. If the coating has been damaged then it
may need to be reapplied. The body of the sensor can be washed if required using the same method as
described above. Whilst washing the sensor care must be taken not to get water in the breather hole or into the
connector at the base of the sensor.
3.5 Fault Finding & Troubleshooting
To determine whether a sensor has a fault carry out the following steps:
Follow the inspection procedure above to identify signs of physical damage
Test that the sensor is communicating properly using the Evaluation Pack (see section 4.1)
If there are signs of physical damage and/or the sensor is failing to communicate properly, it should be
replaced. Sensors may be returned to FT Technologies for further analysis if required (see section 3.6).
Warning
– do not attempt disassembly as damage may result and product warranties will
be invalidated.
If there are no signs of physical damage or problems with communication but sensor downtime or incorrect
readings have been intermittently recorded, the following steps should be taken to ensure the highest levels of
data availability from the sensor:
Using the Evaluation Pack (see section 4);
-
Check that the sensor has the latest version of software (please contact FT Technologies for
more information on latest software releases)
-
Check that the heater set point is at least 30
°
C (see section 4.2)
-
Ensure that the internal filtering in the sensor is enabled (see section 6.4.8)
Check that the wind sensor data and status flag errors are being processed as per the advice in
sections 6.4.25 & 6.4.26.
Ensure the sensor has been installed with adequate lightning and EMC protection (see section 3.3)
Check that the measurement cavity’s special coating is in a satisfactory condition (see section 3.4)
Use the highest build version available as this may have features which resolve the specific problem
being experienced
Please contact FT Technologies for further information and advice if required.
3.6 Returns
If a sensor appears to be faulty, please contact FT Technologies and request a Returns Materials Authorisation
(RMA) form. Please complete the form and return as instructed. Returns cannot be accepted without prior
approval via this authorisation form.
