Campbell HydroSense II Manuel d'instructions télécharger pdf (Page 11)

HS2 and HS2P

5. Turn on the HydroSense II by holding the button for 3 seconds.

6. Establishing a GPS sync may take up to one minute or more. When the

GPS icon is displayed ( ), synchronization has been successful.

Measurements with GPS data can now be taken. See Appendix A.14, GPS

Settings (p. A-6) for information on toggling the GPS.

The HydroSense II stores positional information (when available),

time, and date with measurements. To reliably take advantage of

the GPS, use the HydroSense II outdoors with a clear view of the

sky. Measurements can be made and data stored without a

GPS

(p. 19

) signal; however, the HydroSense II Support Software

(HydroSoft) will be unable to later group and display data

geographically.

7. Insert the sensor rods fully into the soil. The HS2P uses a plastic

“bumper” that covers the rod mounting nuts. Insert the rods into the soil

up to the plastic “bumper”.

Only remove the plastic bumper when replacing soil rods and put

it back on when done.

8. To take a measurement, press . When the hourglass icon ( ) in the

lower right of the screen is extinguished, the measured VWC and period

are shown on the screen.

9. Press to store the measurement. Assuming the GPS is in sync, follow

the prompts to create a zone.

10. Data are now stored in memory. To retrieve data, first establish a

Bluetooth link with your PC, and then collect data using the HydroSense II

support software. See Section 8.4, Connecting via Bluetooth (p. 18) and

Section 8.5, Collecting Data (p. 19).

4. Overview

The HydroSense II is a portable system for measuring volumetric water content

of soil. It is an improved successor to the HydroSense. TABLE 4-1,

Comparison of HydroSense II and HydroSense(I) compares features of the

HydroSense II and HydroSense (I).

TABLE 4-1. Comparison of HydroSense II and HydroSense(I)

Feature HydroSense II HydroSense (I)

Volumetric water

content and period

Yes, period as μs Yes, period as ms

Relative water content

& water deficit with

wet and dry references

Yes (10 profiles) Yes (5 sites)

NOTE

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 45 46

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Campbell HydroSense II Manuel d'instructions Page 11

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