Installation, 1 placement in soil, Placement in soil – Campbell Scientific HFP01SC Hukseflux Self-Calibrating Soil Heat Flux Plate User Manual
Page 9: 1. placement of heat flux plates
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 2 Vdc
Expected Accuracy:
±
3% of reading
Sensitivity (nominal):
50 µV W
–1
m
–2
Sensor Resistance (nominal): 2 Ω
Heater Resistance (nominal): 100 Ω
Duration of Calibration:
±
3 min. @ 1.5 W; typically done every 3 to
6 hours
Weight without Cable:
200 g (7.05 oz)
6. Installation
6.1 Placement in Soil
The HFP01SC soil heat flux plates, the TCAV averaging soil temperature
probes, and the CS616, Water Content Reflectometer, are installed as shown in
FIGURE 6-1. Placement of heat flux plates
Partial emplacement of the HFP01SC and the TCAV
sensors is shown for illustration purposes. All sensors
must be completely inserted into the soil face before
the hole is backfilled.
3
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