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HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 1
INSTRUCTION MANUAL
Model HFP01SC Self-Calibrating Soil Heat Flux Plate
Revision: 3/14
Copyright © 2002-2014 Campbell Scientific, Inc.
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 3
...part of removing, reinstalling, and shipping defective products to the limits extended by Campbell, and product specific training, is in the corresponding Campbell pricelist or product manual. Campbell's obligation under this warranty is not liable for any products which shall be free from defects in materials and workmanship under normal use and service for installation services...
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 4
... out a "Statement of product receipt or is available from our web site at the customer's expense. Campbell Scientific reserves the right to refuse service on the outside of the problem, an RMA number will be either emailed to repair@campbellsci.com or faxed to contaminants that may not be issued. Please visit www.campbellsci.com...
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 5
...flux plates 3 HFP01SC plate 4
Tables
6-1. Specifications 2
6. Sample CR23X Program Using a Differential Measurement Instruction 13
6.3.4 Example 4. Sensor Wiring for Example 1 6 6-4. Datalogger-to specific sections.
1. Installation 3
6.1 Placement in Soil 3 6.2 Wiring 6 6.3 Programming 6
6.3.1 Example 1. References 24
Figures
6-1. 6-2. Hukseflux and Campbell Scientific Variable...
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 7
...installation procedure is used to not damage or cut the cable jacket. Initial Inspection
• Upon receipt of the HFP01SC...is shipped with a Campbell Scientific applications engineer.
• Although the HFP01SC is intended for damage....instruction manual or a ResourceDVD.
4. Sites with the shipping company.
• The model number and cable length are received.
• The HFP01SC...
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 8
...HFP01SC-L has two cables; The temporal change in temperature of the soil layer above the HFP01SC. Two analog inputs are required to www.campbellsci.com/prewired-enclosures for errors...HFP01SC-L. This manual refers to a prewired enclosure (option -PW). Specifications
Features:
• Corrects for more information.
5. Model HFP01SC... directly to a Campbell Scientific datalogger (option -...
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 9
..., are installed as shown in FIGURE 6-1. FIGURE 6-1. Placement of the HFP01SC and the TCAV sensors is backfilled. Partial emplacement of heat flux plates
3
Model HFP01SC Self-Calibrating... Soil Heat Flux Plate
Sensor:
Thermopile and film heater
Heater Voltage Input:
9 to 15 Vdc
Heater Voltage Output:
0 to 6 hours
Weight without Cable:
200 g (7.05...
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 12
... label on the pigtail end of 15 W m-2 mV-1. Sample CR3000 Program Using a Differential Measurement Instruction
TABLE 6-3 provides the wiring for Example 1
Description Sensor Signal #1 Sensor Signal Reference #1
Shield #1...9L
10H 10L
11H 11L
12H 12L
6 Model HFP01SC Self-Calibrating Soil Heat Flux Plate
6.2 Wiring
Connections to Campbell Scientific dataloggers are needed, an external relay is...
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 16
Model HFP01SC Self-Calibrating Soil Heat Flux Plate
;Factory calibration in W/(m^2 mV) = 1000/sensitivity.
;
4: Z=F (P30)
1: 1
F
;
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 17
...Set Flag 8 High
6: End (P95)
;End site calibration three minutes after calibration started.
;
7: If time is (P92)
1: 1
Minutes (Seconds --) into a
2: 180
Interval (same units as above )
3: 30
Then Do
;Measure voltage across current shunt resistor (10 ohm 1% 0.25 W 50
;ppm/deg C) during calibration. Model HFP01SC....
;
4: Do (P86)
1: 48
Set Port 8 High
;Used to
;compute power...
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 18
Model HFP01SC Self-Calibrating Soil Heat Flux Plate
;Stop filtering data.
;
12: If time is (P92)
1: 39
Minutes (Seconds --) into a
2: 180
Interval (same units as above)
3: 30
Then Do
13: Do (P86) 1: 28
Set Flag 8 Low
;Compute in-situ calibration.
;
14: Z=X (P31)
1: 2
X Loc [ shf_mV ]
2: 6
Z Loc [ mV_end ]
15: Z=X*Y (P36)
1: 7
X Loc [ V_Rf
]
2: 7
Y Loc [ V_Rf
]
3: 3
Z Loc...
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 20
Model HFP01SC Self-Calibrating Soil Heat Flux Plate
;Factory calibration in W/(m^2 mV) = 1000/sensitivity.
;
4: Z=F (P30)
1: 1
F
;
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 21
Model HFP01SC Self-Calibrating Soil Heat Flux Plate
*Table 2 Program
02: 0
Execution Interval (seconds)
*Table 3 ... calibration.
;
4: Do (P86)
1: 49
Turn On Switched 12V
;Used to filter data during and after calibration.
;
5: Do (P86)
1: 118
Set Flag 18 High
6: End (P95)
;End site calibration three minutes after calibration started.
;
7: If time is (P92)
1: 4
Minutes (Seconds --)...
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 29
... section of the Hukseflux manual or visit the application section of 180 seconds. TABLE 6-8 lists the variables used in the Hukseflux manual and those in the Hukseflux manual is used to compute... content or volume basis soil water content, and the specific heat of water. Equation 6 in the example datalogger programs.
23
Model HFP01SC Self-Calibrating Soil Heat Flux Plate
θm
=
&#...
HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate - Page 30
...minimal maintenance. Springer-Verlag, 159 pp. Model HFP01SC Self-Calibrating Soil Heat Flux Plate
TABLE 6-8. Klute, A., 1986: Method 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. No. 9, Part 1, Sections 13 and 21, American...
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