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HMP45C-L Temperature and Relative Humidity Probe
Services Available
Repair No
Calibration No
Free Support No

Resumen

The HMP45C is a rugged, accurate temperature and relative humidity probe. It measures relative humidity over the range of 0 to 100% RH and temperature over the range of -40° to +60°C. This probe is suitable for long-term, unattended monitoring, and is compatible with all Campbell Scientific dataloggers.

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Ventajas y características

  • Adecuado para aplicaciones desatendidas y a largo plazo
  • Precisa y robusta
  • Se monta en un mástil de trípode o torreta, brazo, o poste suministrado por el usuario
  • 13367 Sensor Head disponible para facilitar la recalibración
  • Compatible con todos los datalogger Campbell Scientific (incluso serie CR200(X) )

Imágenes

Descripción detallada

The HMP45C probe uses a HUMICAP capacitive polymer H chip to measure relative humidity and a PRT to measure temperature. Yearly HMP45C recalibrations are recommended.

To reduce the current drain, power can be supplied to the HMP45C only during measurement when the sensor is connected to the datalogger’s switched 12 V terminal. Dataloggers that do not have a switched 12 V terminal, such as the CR510 or CR7, can use the SW12V switched 12 V device to switch power to the sensor only during measurement.

Especificaciones

Voltaje alimentación 12 Vdc nominal (typically powered by datalogger)
Current Drain ≤ 4 mA (active)
Cable Diameter 0.8 cm (0.3 in.)
Diámetro sensor 2.5 cm (1 in.)
Sensor Length 25.4 cm (10 in.)
Peso 0.27 kg (0.6 lb)

Humedad relativa

Sensor Vaisala’s HUMICAP H-chip
Rango de medida 0.8% to 100% RH (non-condensing)
Rango señal de salida 0.008 to 1 Vdc
Accuracy at 20°C (against factory reference) ±1% RH
Accuracy at 20°C (field-calibrated against references)
  • ±2% (0% to 90% RH)
  • ±3% (90% to 100% RH)
Dependencia con temperatura ±0.05% RH/°C
Estabilidad a largo plazo Typically, better than 1% RH per year
Tiempo de respuesta 15 s with membrane filter (at 20°C, 90% response)
Tiempo asentamiento 500 ms

Temperature

Sensor temperatura 1000 ohm Platinum Resistance Thermometer
Rango de medida -39.2° to +60°C
Rango señal de salida 0.008 to 1.0 V
Accuracy at -40°C ±0.5°C
Accuracy at -20°C ±0.4°C
Accuracy at 0°C ±0.3°C
Accuracy at 20°C ±0.2°C
Accuracy at 40°C ±0.3°C
Accuracy at 60°C ±0.4°C

Compatibilidad

Nota: lo siguiente muestra información de compatibilidad notable. No es una lista de todos los productos compatibles.

Dataloggers

Producto Compatible Nota
CR1000 (retired)
CR200X (retired)
CR216X (retired)
CR3000 (retired)
CR3000 (retired)
CR3000 (retired)
CR5000 (retired)
CR800
CR850
CR9000X (retired)

Miscelaneo

Producto Compatible Nota
21X (retired)
CR10 (retired)
CR10X (retired)
CR23X (retired)
CR500 (retired)
CR510 (retired)
CR9000 (retired)

Información de compatibilidad adicional

Mounting

The HMP45C should be housed in a 41003-5 10-plate naturally-aspirated solar radiation shield. The 27251 hex plug is required to mount the HMP45C in the 41003-5. At one time, this hex plug was shipped with the radiation shield but it no longer is. The41003-5 mounts to a tripod or tower mast, crossarm, or user-supplied pole.


Preguntas frecuentes

Número de FAQs relacionadas con HMP45C-L: 1

  1. The HMP60-L (with the Campbell Scientific cable) cannot be used with the 41003-5 10-Plate Radiation Shield without the use of additional hardware. For more information, refer to the Compatibility information on the HMP60-L product page. The standard radiation shield for the HMP60-L is the 41303-5A.

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