Section 4 Service, Configuration & Testing
18
FT742-SM (RS422 & RS485) Sensors
– User Manual
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.
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.
4.2 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.
Remove any objects or insects lining the cavity or blocking the airflow.
Reset the sensor (RSU command or power-cycle).
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 4.3).
Warning
– The sensor contains no user serviceable components. Do not attempt
disassembly as damage may result and product warranties will be invalidated.
During extreme weather conditions there may be periods where data is temporarily unavailable. However there
are ways to mitigate against these affects. The following steps should be taken to ensure the highest levels of
data availability from the sensor:
Check that the wind sensor data and status flag errors are being processed as per the advice in
Sections 7.4.26 and 7.4.27.
Ensure that any installed lightning and EMI protection (see Section 3) is in good condition and any cable
shielding is terminated at both ends. All mating surfaces must be free of paint and corrosion.
Check that the measurement cavity’s special coating is in a satisfactory condition and no debris is
present. Debris can be blown out or washed out with distilled water spray.
Please contact FT Technologies for further information and advice if required.
4.3 Returns
If a sensor appears to be faulty, compile a detailed fault description for each sensor, then contact FT
Technologies to 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.
Units damaged by lightning or disassembled by the customer cannot typically be repaired, however an
inspection fee may still apply.
