VAISALA FD70 Forward Scatter Sensor (−40 … +65 °C (−40 … +149 °F))

- Reporting range: 1 m … 100 km (3 ft … 62 mi)

- Reporting resolution: 1 m (3 ft)

- Reporting uncertainty in operational conditions:

±10 % or ±1 m at 1 m … 10 km (±3 ft at 3 ft … 6.2 mi) 1)

±20 % at 10 … 100 km (6.2 … 62 mi)

- Measurement error: ±0.7 %

- Operating principle: Look-down forward scatter

- Scattering angle (main receiver): 42° ±0.25°

Scattering angle (side receiver): 90° ±0.25°

- Light source: Near-infrared

- Sampling frequency: 5 MHz

- Measurement cycle: 5 s

- Operating voltage:

Measurement unit with interface unit: 115/230 V AC ±10 %, 50 … 60 Hz

Measurement unit only: 10 … 50 V DC

- Heating voltage: 24 V AC or V DC ±10 %

- Dimensions, measurement unit: 354 × 551 × 883 mm (13.94 × 21.69 × 34.76 in)

- Weight, measurement unit: Max. 7.5 kg (16.5 lb)

- IP rating: IP66