Anemometer FT742
Acoustic resonance wind sensor.

- Supplier: FT Technologies
- Power supply:
- Supply voltage : 12 to 30 VDC (24 VDC nominal)
- Supply current (heating turned off): 31 mA typical
- Supply current (heating turned on): limited to 4 A (default), 6 A (max)
- Signal output:
- Digital: RS485 (half-duplex), galvanically isolated from power supply lines and housing
- Digital: 4-20 mA, galvanically isolated from power supply lines and housing (this interface is not designed to be permanently connected to a data logger or other device)
- Sampling frequency: maximum 10 measurements per second
- Range(s):
- Wind speed: 0-75 m/s
- Wind direction: 0 to 360°
- Accuracies:
- Wind speed resolution: 0.1 m/s
- Wind speed accuracy:
- ± 0.3 m/s (0-16 m/s)
- ± 2 % (16-40 m/s)
- ± 4 % (40-75 m/s)
- Wind direction resolution: 1°
- Wind direction accuracy:
- Within ± 0° of the reference: 2° RMS
- Outside ± 10° of the reference: 4° RMS
- Operating temperatures: -40 °C/85 °C
- Quantity: 2
- Use(s):
- Measurement of wind direction and speed near our facilities