Campbell HydroSense II HS2, Руководство по эксплуатации продукта

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HS2 and HS2P
8
Precision:
<0.05%
Accuracy: ±3% VWC in mineral soils
with solution EC ≤4.0 dS/m (20 cm rods)
with solution EC ≤6.5 dS/m (12 cm rods)
5.2.2 Physical
Weight: 0.45 kg (0.99 lb)
Sensor body dimensions
(L x W x H): 100 x 92 x 40 mm (3.9 x 3.6 x 1.6 in)
Rod length: 20 cm and 12 cm; rods are replaceable but not
interchangeable
Rod diameter: 4.7 mm (nominal)
5.3 HS2P Pole Assembly
Handle width: 29.2 cm (11.5 in)
Pole width: 2.5 cm (1 in)
Pole depth: 2.5 cm (1 in)
5.3.1 Height
Handle to bottom of sensor: 82.3 cm (32.4 in)
Top of display to
bottom of sensor: 96.5 cm (38 in)
5.3.2 Weight
With display and sensor: 1.4 kg (3 lb)
Without display: 1.1 kg (2.4 lb)
6. Operation
6.1 Assembly and First Use
This information is provided in Section 3 , QuickStart
(p. 2)
.
6.2 Measurements
The HydroSense II presents two distinct data sets. One data set includes
volumetric water content expressed as percent (%) and period ( μs ). The second
data set includes an estimate of relative water content relative to pre-measured
wet and dry references, and water deficit. Water deficit provides an estimate of
applied water required (in mm) to return the soil to the “wet” water content. By
default, only water content data are displayed. Using the configuration menu
(p. A-1)
, water deficit data can be enabled to display side-by-side with water
content data.