Campbell Scientific HFP01SC HFP01SC Hukseflux Self-Calibrating Soil Heat Flux - Page 7

Model HFP01SC, Self-Calibrating Soil Heat Flux Plate

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Model HFP01SC Self-Calibrating Soil Heat Flux Plate 1. Introduction The HFP01SC Self-Calibrating Heat Flux Sensor measures soil heat flux, typically for energy-balance or Bowen-ratio flux systems. It is intended for applications requiring the highest possible degree of measurement accuracy. At least two sensors are required for each site to provide spatial averaging. Sites with heterogeneous media may require additional sensors. Before installing the HFP01SC, please study • Section 2, Cautionary Statements • Section 3, Initial Inspection The installation procedure is provided in Section 6, Installation. 2. Cautionary Statements • Care should be taken when opening the shipping package to not damage or cut the cable jacket. If damage to the cable is suspected, consult with a Campbell Scientific applications engineer. • Although the HFP01SC is rugged, it should be handled as a precision scientific instrument. 3. Initial Inspection • Upon receipt of the HFP01SC, inspect the packaging and contents for damage. File damage claims with the shipping company. • The model number and cable length are printed on a label at the connection end of the cable. Check this information against the shipping documents to ensure the correct product and cable length are received. • The HFP01SC is shipped with a calibration sheet and an instruction manual or a ResourceDVD. 4. Overview The HFP01SC Soil Heat Flux plate consists of a thermopile and a film heater. The thermopile measures temperature gradients across the plate. During the insitu field calibration, the film heater is used to generate a heat flux through the plate. The amount of power used to generate the calibration heat flux is measured by the datalogger. Each plate is individually calibrated, at the factory, to output flux. 1

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Model HFP01SC
Self-Calibrating Soil Heat Flux Plate
1.
Introduction
The HFP01SC Self-Calibrating Heat Flux Sensor
measures soil heat flux,
typically for energy-balance or Bowen-ratio flux systems.
It is intended for
applications requiring the highest possible degree of measurement accuracy.
At least two sensors are required for each site to provide spatial averaging.
Sites with heterogeneous media may require additional sensors.
Before installing the HFP01SC, please study
•
Section 2,
Cautionary Statements
•
Section 3,
Initial Inspection
The installation procedure is provided in Section 6,
Installation
.
2.
Cautionary Statements
•
Care should be taken when opening the shipping package to not damage or
cut the cable jacket.
If damage to the cable is suspected, consult with a
Campbell Scientific applications engineer.
•
Although the HFP01SC is rugged, it should be handled as a precision
scientific instrument.
3.
Initial Inspection
•
Upon receipt of the HFP01SC, inspect the packaging and contents for
damage.
File damage claims with the shipping company.
•
The model number and cable length are printed on a label at the
connection end of the cable.
Check this information against the shipping
documents to ensure the correct product and cable length are received.
•
The HFP01SC is shipped with a calibration sheet and an instruction
manual or a ResourceDVD.
4.
Overview
The HFP01SC Soil Heat Flux plate consists of a thermopile and a film heater.
The thermopile measures temperature gradients across the plate.
During the in-
situ field calibration, the film heater is used to generate a heat flux through the
plate.
The amount of power used to generate the calibration heat flux is
measured by the datalogger.
Each plate is individually calibrated, at the
factory, to output flux.
1