Der HygroVUE™10 Sensor für Temperatur und relative Luftfeuchte für allgemeine meteorologische Anwendungen entworfen Er gibt ein SDI-12 Signal aus und kann damit mit allen SDI-12 -fähigen Geräten verwendet werden, natürlich auch mit unseren Datenloggern. Das Sensorelement kann einfach im Feld getauscht werden, so dass der Sensor nicht mehr zur Rekalibrierung eingeschickt werden muss.
Ein hydrophober Filter am HygroVUE™10 verhindert, dass Schmutz und Wasser in die Kappe eindringen. Ein kleiner PTFE-Membranfilter ist an der Oberfläche des Sensorelements angebracht, die dafür sorgt, dass feinerer Staub keinen Einfluss auf die Messung hat. .
Das Gehäuse des Sensors ist sehr stabil und kann permanent dem Wetter ausgesetzt sein. Er passt in verschiedene Typen von Strahlungsschutz (auch in kompakte Modelle), und kann damit für verschiedene Anwendungen eingesetzt werden.
Der HygroVUE™10 enthält einen kombinierten Chip zur Messung von Temperatur und Luftfeuchte, basierend auf CMOSens® Technologie, der gute Messwerte, Stabilität und Genauigkeit bietet. Jedes Sensorelement ist individuell kalibriert und die Kalibrierfaktoren sind auf dem Chip gespeichert. Durch einfaches Austauschen des Sensorelements im Feld ist der Sensor rekalibriert.
Lesen Sie mehrWhen you use the HygroVUE™10 outdoors, it is standard practice to install the sensor within a housing, known as a shield. The shield prevents solar radiation from heating the sensor and creating measurement errors. The radiation shield also provides a degree of protection from adverse weather, such as hail or driving rain. The most common type of shield is a relatively small, naturally ventilated screen that is low maintenance and requires no power.
The HygroVUE™10 is specifically designed for field use with dimensions to suit common radiation shields. (Campbell Scientific recommends the RAD10E 10-Plate Solar Radiation Shield.) You can mount the RAD10E on vertical or horizontal poles.
Calibration is easy to carry out by simply changing the sensor element. As each sensor element is individually calibrated, no further adjustments of the sensor are required. This means that when you change the element, it returns the sensor to the factory calibration state for both temperature and humidity—without interrupting your measurement collection for long periods.
Sensing Element | SHT35 modified by Campbell Scientific |
Communication Standard | SDI-12 V1.4 (responds to a subset of commands) |
Supply Voltage | 7 to 28 Vdc |
EMC Compliance | Tested and conforms to IEC61326:2013. |
Standard Operating Temperature Range | -40° to +70°C |
Main Housing Material | UV stable, white PET-P |
Electronics Sealing Classification | IP67 |
Sensor Protection | Outer glass-filled polypropylene cap fitted with a UHWPE sintered filter with a nominal pore size of 4 µm and 43% porosity. The sensor element has a PTFE protective film with a filtration efficiency of > 99.99% for particles of 200 nm or larger size. |
Sensor Connector | M12, male, 4-pole, A-coded |
Cable | Polyurethane sheathed, screened cable, nominal diameter 4.8 mm (0.19 in.) |
Field-Replaceable Chip or Recalibrate | Field-replaceable chip |
Sensor Cap Diameter | 12.5 mm (0.5 in.) |
Body Diameter at Connector | 18 mm (0.7 in.) |
Length | 180 mm (7.1 in.) without cable fitted |
Sensor Body Weight | 50 g (1.8 oz) |
Weight | 250 g (8.8 oz) with 5 m (16.4 ft) cable |
Relative Humidity |
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Measurement Range | 0 to 100% RH |
Accuracy |
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Short-Term Hysteresis | < ±1% RH |
Additional Errors at Other Temperatures | < ±1% RH (over -40° to +60°C) |
Long-Term Stability | ±0.5% per year (maximum drift in clean air conditions) |
Reported Resolution | 0.001% RH |
Repeatability | 0.05% RH (3σ noise level) |
Response Time with Filter | <20s (63% response time in still air) |
Air Temperature |
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Measurement Range | -40°C to +70°C |
-NOTE- | The accuracy figures quoted are the 95% confidence limits relative to factory standards. |
Accuracy |
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Long-Term Drift | < 0.03°C per year |
Reported Resolution | 0.001°C |
Repeatability | 0.04°C (3σ noise level) |
Response Time with Filter | < 130 s (63% response time in air moving at 1 m/s) |
Calibration Traceability | NIST and NPL standards |
Maximum Current Drain |
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Quiescent | 50 µA |
During Measurement | 0.6 mA (takes 0.5 s) |