The HFP01SC measures heat flux, typically as a component within energy balance or Bowen ratio flux systems. The HFP01SC is manufactured for Campbell Scientific by Hukseflux (Delft, The Netherlands). The sensor outputs a voltage signal that is proportional to the heat flux of the surrounding medium. At least two sensors are required for each site to provide spatial averaging. Sites with nonhomogeneous media may require additional sensors.

Features

Typically used in Bowen ratio and energy balance systems
Voltage output proportional to local heat flux
On-board heater allows calibration via the "Van den Bos-Hoeksema" method
Calibration takes 8 minutes; typically performed every three hours
Minimum of two soil heat flux measurements are recommended for a homogeneous site
Manufactured by Hukseflux

Specifications

Sensor Type: Thermopile with film heater
Sensitivity (nominal): 50 μV W-1 m-2
Nominal Resistance: 2 W
Expected Accuracy: ±3% of reading
Heater Resistance: 100 ohms (nominal)
Heater Voltage Input: 9 to 15 Vdc
Heater Voltage Output: 0 to 2 Vdc
Duration of Calibration: ±3 minutes @ 1.5 Watts; typically performed every 3 to 6 hours
Average Power Consumption: 0.02 to 0.04 W

Producing Area:USA