FT742

FeatureFT742FT722FT702-V22
Speed range0-75 m/s0-50 m/s0-50 m/s
Speed accuracy±0.3m/s (0-16m/s)

±2% (16m/s-40m/s)

±4% (40m/s-75m/s)

±0.3m/s (0-16m/s)

±2% (16m/s-40m/s)

±4% (40m/s-50m/s)

±0.5m/s (0-15m/s)

±4% (16m/s-50m/s)

Directional accuracyWithin ±10° datum: 2° RMS

> ±10° of datum: 4° RMS

Within ±10° datum: 2° RMS

> ±10° of datum: 4° RMS

Within ±10° datum: ±2°

> ±10° of datum: ±4°

Data update rate10Hz10Hz5Hz
Mounting optionsFlat Front (FF)

Pipe Mount (PM)

Direct Mount (DM)

Surface Mount (SM)

Flat Front (FF)

Pipe Mount (PM)

Flat Front (FF)

Pipe Mount (PM)

ApplicationsWind Turbine Control (FF & PM)

Meteorology (DM)

OEM Integration (SM)

Wind Turbine ControlWind Turbine Control
Warranty2 years2 years1 year
Error flag digitalAn invalid reading character of “1”is set in the wind velocity output message.An invalid reading character of “1”is set in the wind velocity output message.An invalid reading character of other than 0 is set in the wind velocity output message.
Error flag analogueBoth speed and direction current loops drop to a default value of 1.4mA (configurable to 3.9mA)Both speed and direction current loops drop to a default value of 1.4mA (configurable to 3.9mA)Both speed and direction current loops drop to a default value of 1.4mA (configurable to 3.9mA)
Over-speed warning digitalAn over-speed character of “2” is set in the wind velocity output message.An over-speed character of “2” is set in the wind velocity output message.An over-speed character of “2” is set in the wind velocity output message.
Over-speed warning analogueThe speed current loop is set to 20.0mA and the direction current loop is set by default to 1.4mA (configurable up to 3.9mA).The speed current loop is set to 20.0mA and the direction current loop is set by default to 1.4mA (configurable up to 3.9mA).Both speed and direction current loops drop to a default value of 1.4mA (configurable up to 3.9mA)
Over-speed warning default settingThe separate over-speed warning scheme is off by default in which case an over-speed event is shown by the error flag. The over-speed scheme can be enabled by FT before despatch on request.The separate over-speed warning scheme is off by default in which case an over-speed event is shown by the error flag. The over-speed scheme can be enabled by FT before despatch on request.Not applicable
FIR Filter lengthDefault 16 readings -1.6 secs. configurable to 64 readings – 6.4 secs.Default 16 readings -1.6 secs. configurable to 64 readings – 6.4 secs.Default 8 readings -1.6 secs. configurable to 64 readings – 12.8 secs.
Selective filter schemeImproved data processing scheme – off by default. Can be enabled on despatch. Contact FT for scheme detailsImproved data processing scheme – off by default. Can be enabled on despatch. Contact FT for scheme details
Part numbersFT742-D-FF, FT742-A-FF, FT742-D-PM, FT742-A-PM, FT742-D-DM, FT742-A-DM, FT742-D-SMFT722-D-FF, FT722-A-FF, FT722-D-PM, FT722-A-PMFT702LT-V22-FF, FT702LT/D-V22-FF, FT702LT-V22-PM, FT702LT/D-V22-PM, FT702LT/D50-V22-FF, FT702LT/D50-V22-PM, FT702LT/D60-V22-FF, FT702LT/D60-V22-PM, FT702LT/D70-V22-FF, FT702LT/D70-V22-PM