Section 3 Mechanical Installation & Lightning Protection
18 FT722 & FT742 (RS485) – FF & PM Sensors – User Manual
3.1.2 Connector Details
All electrical connections are made to the digital sensor via a 5-way multipole connector located in the base of the
wind sensor housing. The connector pin designations are shown in Figure 7 and the connector/mating connector
manufacturer’s part numbers in Figure 8.
Figure 8: Connector Sourcing Options
3.1.3 Cable Details
The mating connectors are suitable for use with cables with overall diameters as per the table above and for
individual cores of diameters of up to 1.2mm. Cable such as SD980CPTP 3x2x0.5mm² from SAB Brockskes or
similar types may be used. Care must be taken to ensure that the cable is suitable for the environment it will be
used in and is adequately approved, for example AWM Style 21198.
In an area with a moderate or severe lightning strike exposure the cable shield may not provide sufficient
protection. In this case the cable will require further shielding such as being enclosed in a metal pipe or conduit.
FT can supply cables with a mating connector leading to bare wires at the other end, for connection to user
systems. The digital version of the -FF and -PM sensors use either the FT001 (15m) or FT007 (5m) digital cable.
Note: 4-20mA sensors use a different (8-way) connector and will require an alternative cable.
Please ensure that when sourcing cables from alternative sources that the cables are suitable for the requirements
and the cable wiring is equivalent. The sensor is protected against common miswiring events within the operating
range of the sensor.
For further details of cables and accessories please visit the FT website at https://www.fttechnologies.com/Wind-
Sensors/Accessories
FT can also provide Acu-Test cables allowing operators to view wind speed and direction data with the Acu Vis
software. These cables are intended for short testing periods and are not suitable for long-term datalogging.
Please see Section 4.4 for further details.
To Next Page
Loading...
