RAD06,10,14 & Met20/21 Natürlich belüfteter Strahlungsschutze
Genauere Messungen als mit vergleichbaren Schilden, 2 Kategorien zur Auswahl
wetter wasser energie gas flux and turbulence bauwerke boden

Überblick

Diese unbelüfteten Strahlungsschutze können Sensoren für Temperatur und Luftfeuchte aufnehmen und schützten sie vor Sonneneinstrahlung, Regen und Schnee. 

Durch ein verbesserte Design ermöglichen sie sehr gute Messwerte zu einem relativ günstigen Preis. 

Es gibt 2 Produktfamilien:

Kompakte RAD 06, 10 & 14 mit 6,10 oder 14 Platten: - Kleinere, robuste Gehäuse, die sehr gute Messergebnisse liefern. Messfehler waren bei Tests um mehr als 50% geringer im Vergleich mit Standardschutzen.

MET 20 & 21 - Größere Strahlungsschutze für gute Messergebnisse und den besten Schutz für einen Sensor in rauer Umgebung. Der Strahlungsschutz der Wahl in mariner Umgebung oder wo mit verwehtem Niederschlag geechnet werden muss.

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Funktionen und Vorteile

  • Weniger Fehler durch Sonneneinstrahlung - genauere Messungen
  • Wespen und andere Insekten können nur schlecht eindringen
  • Einfach zur Reinigung auseinander zu bauen
  • Sensoren können besonders sicher befestigt werden
  • Besonders robust, UV-stabil und seewasserbeständig
  • Kein Strom notwedig
  • Kostengünstig gegenüber großen Stevensons-Screens
  • Guter Schutz der Sensoren vor Regen oder Schnee
  • Leichter und schneller aufbau
  • Langzeitbeständig

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Technische Beschreibung

All unaspirated radiation shields overheat when solar radiation is high and wind speed is low. Problems are also seen in the winter when the sun’s angle is low or there is reflection off snow. However, the unique design and construction of these sensors is specifically designed to overcome these issues. The design of this shield has a white outer reflective surface combined with an inner barrier of non-reflective, black louvres to prevent sunlight reaching the sensor whilst still allowing air to flow through to the sensor. This unique construction is more effective at blocking solar radiation and thus the sensors inside the shield give a more representative reading of the true air temperature and relative humidity. Errors under adverse conditions are typically half those compared to similar shields. The shape of the louvres is based on an established design that is in common use in a modern Stevenson screen made by the same manufacturer. That screen is sold to national meteorological services worldwide

Kompatibel mit

RAD 06: houses short thin probes from 5-7 mm in diameter with up to 94 mm of the probe inside the shield. It can house Campbell Scientific’s 107, 109 and PT100 sensors.

RAD 10: houses probes 5-17 mm in diameter taking up 160 mm of the probe inside the shield. It can house Campbell Scientific’s CS215 or HC2S3 temperature and humidity sensors.

RAD 14: houses large probes 14-25 mm in diameter taking up 226 mm of the probe inside the shield. It can house the HMP155 or MP100A sensors. Smaller probes such as the 107 and PT100 can be mounted in these using an optional adapter

MET 20: houses probes from 5-17 mm in diameter with up to 120 mm of the probe inside the shield. It can house the Campbell Scientific CS215, HC2S3,107, 109 or PT100 sensors.

MET 21: houses larger probes 14-25 mm in diameter taking up to 220 mm of the probe inside the shield. It can house the CS215, HC2S3, HMP155, MP100A or smaller probes such as the 107 or PT100 using an optional adapter.

Spezifikationen

RAD 06, 10 & 14

Double louvred high impact U.V stable polycarbonate plastic louvre plates
• The external plates have matt black undersides to reduce reflected solar radiation getting inside the shield
• Gloss white aluminium arm with durable white polyester powder coating
• Stainless steel ‘V’ bolt, and securing nuts to fit a pole of between 25 - 51 mm in diameter. Fits onto both horizontal and vertical structures
• Black plastic locating clamp
• Fully RoHS compliant in conjunction with sensors.

Dimensions and weights
RAD 06: Overall 123 mm diameter x 142 mm height (shield only); 281 mm including bracket. Weight 0.87 kg
RAD 10: Overall 123 mm diameter x 208 mm height (shield only); 347 mm including bracket. Weight 1.01 kg
RAD 14: Overall 123 mm diameter x 274 mm height (shield only); 413 mm including bracket. Weight 1.15 kg
Operating temperature range -55 to 65 °C

MET 20 & 21

Double louvred high impact U.V stable polycarbonate plastic louvre plates
• Internal black louvres to block radiation entry
• Gloss white aluminium arm with durable white polyester powder coating
• Stainless steel ‘V’ bolt, and securing nuts to fit a vertical pole of between 25-51 mm diameter
• Black plastic locating clamp
• Large internal volume can house electronics or multiple sensors in one shield - contact CS for special options.

Dimensions and weights:
• MET 20: Overall 165 mm diameter x 172 mm height (shield only); 303 mm height including bracket. Weight 1.04 kg
• MET 21: Overall 165 diameter x 274 mm height (shield only); 405 mm height including bracket. Weight 1.32 kg
Operating temperature range -55 to 65 °C

 

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