El HygroVUE™10 está compuesto por un un elemento sensor combinado de temperatura y humedad relativa, digital avanzado ideal para uso en redes meteorológicas. La electrónica del sensor proporciona medidas precisas, y es fácil de usar. La salida digital SDI-12 permite su conexión a muchos equipos de medida. Otra ventaja es que esta salida digital evita errores adicionales asociados con las medidas analógicas.
Un filtro sinterizado hidrófobo impide la entrada de suciedad y agua. El filtro está diseñado para resistir la lluvia impulsada por el viento. Un filtro secundario de membrana de PTFE está adherido a la superficie del elemento sensor para evitar que el polvo más fino y el moho influyan directamente en las medidas.
Debido a que el cuerpo del sensor está diseñado para estar expuesto permanente a diversas condiciones climáticas y se adapta a variedad de protectores de radiación (incluidos los protectores compactos), el HygroVUE ™ 10 es realmente adecuado para uso en una amplia gama de aplicaciones de monitorización.
El HygroVUE ™ 10 utiliza un elemento combinado de humedad relativa y temperatura de última generación, fabricado en Suiza, basado en la tecnología CMOSens ® que ofrece buenas medidas, precisión y estabilidad. Cada elemento del HygroVUE ™ 10 se calibra individualmente con las correcciones de calibración almacenadas en su propio chip. Se puede cambiar fácilmente el elemento sensor en campo, lo que reduce el tiempo de inactividad y los costos de calibración.
Leer másWhen 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) |