FT Technologies FT743-D-SM KIT-1.5 | ultrasonic anemometer kit
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Technical specifications
Technical specifications
| Wired network | RS422 (full duplex), RS485 (half duplex) |
| Wind angle accuracy (°) | 4 |
| Anemometer type | Acoustic resonance, Ultrasonics |
| Housing material | Anodized aluminum |
| Product height (mm) | 71.2 |
| Operating voltage | 6 to 30 V DC |
| Cable length (m) | 1.5 |
| Ingress protection | IP67 |
| Bus compatibility | RS422,RS485,NMEA 0183 |
| Mounting type | Surface mount |
| Included Cable | FT009 |
| Water ingress protection | IP67 |
| Manufacturer Reference | FT743-D-SM KIT-1.5 |
| Sensor Reference | FT743-D-SM |
Detailed description
Detailed description
Designed for demanding environments, the FT743-D-SM anemometer kit integrates an acoustic resonance wind sensor and a FT009 connection cable of 1,5 m. This system provides accurate wind speed, direction, temperature, and pressure data, with a digital architecture suitable for marine and industrial applications.
Measurement Technology and Performance
The FT743-D-SM sensor uses FT Technologies's exclusive Acu-Res® technology, which automatically compensates for variations in temperature, pressure, and humidity. This method ensures data availability greater than 99,9 % and a high signal-to-noise ratio. The sensor measures wind speed from 0 to 75 m/s with a resolution of 0,1 m/s and an accuracy of ±0,3 m/s (0-16 m/s), ±2 % (16-40 m/s), and ±4 % (40-75 m/s). Wind direction is measured over 360° with a resolution of 1° and an accuracy of 4° RMS. An integrated compass offers an accuracy of 5° RMS. Pressure measurement extends from 260 to 1260 hPa with a resolution of 0,0001 hPa and an accuracy of ±0,5 %. Acoustic temperature is measured with a resolution of 0,1 °C and an accuracy of ±2 °C under specific conditions (speed range 5-60 m/s, -20 to +60 °C, temperature difference <10 °C).
Robust Design and Integration
Made of corrosion-resistant anodized aluminum, the FT743-D-SM is watertight with an IP67 protection rating when properly installed with its O-ring. It integrates an adjustable thermostatic heating system from 0° to 55 °C for operation in extreme conditions. The sensor weighs 252 g and has a height of 71,2 mm. It withstands shocks up to 50 g and operates within a temperature range of -40° to +85 °C and humidity of 0 to 100 %, up to 4 000 m altitude. Power required is 6 to 30 V DC (nominal 24 V DC), with a current of 26 mA (heater off) or 2 A (heater on). The I/O connector is a 8-pin M12 circular. The digital interface is RS422 (full-duplex) and RS485 (half-duplex) compatible, with data in ASCII, Polar, and NMEA 0183 formats (km/h and knots only in NMEA 0183) at an update frequency of 10 Hz. The included FT009 cable of 1,5 m is designed for FT74X-SM sensors, with 8 conductors 24AWG (6 active) and a diameter of 7 mm. Its temperature range is -40 to +80 °C, its weight 0,1 kg.
Technical Specifications Table
| Feature | FT743-D-SM Sensor | FT009 Cable |
|---|---|---|
| Sensor Type | Acoustic resonance, digital anemometer | 8-pin connection cable (6 active) |
| Wind Speed Range | 0 to 75 m/s | N/A |
| Wind Speed Accuracy | ±0,3 m/s (0-16 m/s), ±2 % (16-40 m/s), ±4 % (40-75 m/s) | N/A |
| Wind Direction Range | 0 to 360° | N/A |
| Wind Direction Accuracy | 4° RMS (compass 5° RMS) | N/A |
| Pressure Measurement Range | 260 to 1260 hPa (accuracy ±0,5 %) | N/A |
| Operating Temperature Range | -40° to +85 °C | -40 to +80 °C |
| Protection Rating | IP67 | N/A |
| Supply Voltage | 6 V to 30 V DC | 30VDC / 2A |
| Current (heater off) | 26 mA | N/A |
| Current (heater on) | 2 A (max 60W at 30V) | N/A |
| Interface | RS422 (full-duplex), RS485 (half-duplex), NMEA 0183 | RS422, RS485 (wiring) |
| Update Frequency | 10 Hz | N/A |
| I/O Connector | Universal 8-pin M12 circular | 8-pin (6 active) to sensor, bare wires |
| Weight | 252 g | 0,1 kg |
| Length | N/A | 1,5 m |
| Min. Bend Radius | N/A | 70 mm |
Expert opinion
Expert opinion
Pol CONIN
Digital Manager
« Technical Analysis of the FT743-D-SM Wind Sensor and its Integration »
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