Campbell HydroSense II Manual de instrucciones descargar pdf (Pagina 15)

HS2 and HS2P

Dimensions: 200 x 100 x 58 mm (7.9 x 3.9 x 2.3 in)

Source: 4 x AA alkaline batteries

Battery life: 6 to 12 months (depends on usage and battery

quality)

5.1.1 Current Drain

Asleep: 20 μA

Backlight off: 2 mA

Backlight 60%: 18 mA

Backlight 100%: 30 mA

GPS active: 35 mA

Bluetooth active: 30 mA

5.2 Sensors Specifications

5.2.1 Volumetric Water Content Measurement

Measurement principle: time domain reflectometry

Measurement range: 0% – 50%

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 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)

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Campbell HydroSense II Manual de instrucciones Pagina 15