Campbell Scientific HFP01SC HFP01SC Hukseflux Self-Calibrating Soil Heat Flux - Page 30

Maintenance, References

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Model HFP01SC Self-Calibrating Soil Heat Flux Plate TABLE 6-8. Hukseflux and Campbell Scientific Variable Names Description Soil Heat Flux Output of Sensor in mV 1/Sensitivity Output of Sensor during calibration at t=0 seconds Output of Sensor during calibration at t=180 seconds Output of Sensor after calibration and just before output Voltage Across fixed 10 Ω resistor Hukseflux ϕ Vsen 1/Esen2 V (0) V (180) V (360) Vcur Campbell Scientific shf shf_mV cal mV_0 mV_180 mV_end V_Rf 7. Maintenance The HFP01SC requires minimal maintenance. Check the sensor leads monthly for rodent damage. 8. References Hanks, R. J., and G. L. Ashcroft, 1980: Applied Soil Physics: Soil Water and Temperature Application. Springer-Verlag, 159 pp. Klute, A., 1986: Method of Soil Analysis. No. 9, Part 1, Sections 13 and 21, American Society of Agronomy, Inc., Soil Science Society of America, Inc. 24

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Model HFP01SC Self-Calibrating Soil Heat Flux Plate
TABLE 6-8.
Hukseflux and Campbell Scientific
Variable Names
Description
Hukseflux
Campbell
Scientific
Soil Heat Flux
ϕ
shf
Output of Sensor in mV
V
sen
shf_mV
1/Sensitivity
1/E
sen2
cal
Output of Sensor during
calibration at t=0 seconds
V (0)
mV_0
Output of Sensor during
calibration at t=180 seconds
V (180)
mV_180
Output of Sensor after
calibration and just before
output
V (360)
mV_end
Voltage Across fixed
10
Ω
resistor
V
cur
V_Rf
7.
Maintenance
The HFP01SC requires minimal maintenance.
Check the sensor leads monthly
for rodent damage.
8.
References
Hanks, R. J., and G. L. Ashcroft, 1980:
Applied Soil Physics:
Soil Water and
Temperature Application.
Springer-Verlag, 159 pp.
Klute, A., 1986:
Method of Soil Analysis.
No. 9, Part 1, Sections 13 and 21,
American Society of Agronomy, Inc., Soil Science Society of America,
Inc.
24