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380-43408 Motor Aspirated Radiation Shield

380-43408 Motor Aspirated Radiation Shield
380-43408 Motor Aspirated Radiation Shield
The 380-43408 Motor Aspirated Radiation Shield provides maximum sensor protection from incoming short wave solar radiation and outgoing long wave radiation. The shield employs concentric downward facing intake tubes and a small canopy shade to isolate the sensor from direct and indirect radiation.
Product Details

The 380-43408 Motor Aspirated Radiation Shield provides maximum sensor protection from incoming short wave solar radiation and outgoing long wave radiation. The shield employs concentric downward facing intake tubes and a small canopy shade to isolate the sensor from direct and indirect radiation. A continuous duty blower draws ambient air through the intake tubes and across the sensor minimizing heat transfer to the sensor. Compact shield components reduce radiation absorption and improve aspiration efficiency. Specially selected plastic materials provide high reflectivity, low conductivity, and maximum weatherability. The versatile DC blower is designed for continuous duty of 80,000 hours at 25°C. Brushless electronic commutation is achieved using dependable solid state circuitry.

Specifications

  • Sensor types: Accommodates temperature and humidity sensors up to 19 mm (.75") diameter
  • Radiation error: @ 1000 W/m² intensity
  • Ambient temperature: 0.2°C (0.4° RMS
  • Delta T: 0.05°C (0.1°F) RMS with like shields equally exposed
  • Aspiration rate: 3.4 to 7.6 m/s (11 to 25 fps) depending on sensor size
  • Construction:
    • UV stabilized thermoplastic shield, white
    • Aluminum cross tube & mounting brackets, white painted
    • Stainless Steel U-bolt clamp
  • Dimensions:
    • Length: 110-190 cm (43-75") adjustable
    • Shield: 34 mm (1.3") dia x 10 cm (4") length
    • Blower housing: 15 cm (5.9") dia x 9 cm (3.5") length
  • Mounting: Adjustable V-blocks and U-bolts fit vertical, horizontal, or diagonal tower members 25-50 mm (1-2") dia
  • Power requirement: 12 Vdc @ 500 mA for blower, AC adapter included
  • Weight/shipping: 2.4 kg (5.3 lb)/5.9 kg (13 lb)
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