Campbell KH20 Скачать руководство пользователя | Manualshive

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KH20 Krypton Hygrometer

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C o p y r i g h t © 2 0 1 0

C a m p b e l l S c i e n t i f i c , I n c .

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Содержание KH20

Страница 1: ...KH20 Krypton Hygrometer 2 10 C o p y r i g h t 2 0 1 0 C a m p b e l l S c i e n t i f i c I n c...

Страница 2: ...customers residing in countries served by Campbell Scientific Inc directly Affiliate companies handle repairs for customers within their territories Please visit www campbellsci com to determine whic...

Страница 3: ...e Electronics Box 3 4 Wiring 5 5 Datalogger Programming 6 5 1 KH20 Calibration 6 5 2 Example 1 CR3000 Program to Measure Water Vapor Fluctuations 7 6 Maintenance and Calibration 9 6 1 Visual Inspectio...

Страница 4: ...f Contents ii Tables 1 Datalogger Connections for Differential Measurement 5 2 KH20 Calibration Ranges 6 A 1 Linear Regression Results for KH20 ln mV vs Vapor Density A 2 A 2 Final Calibration Values...

Страница 5: ...inside a rain shield CSI p n 14113 that protects them from moisture The KH20 is suitable for long term continuous outdoor applications The KH20 sensor is comprised of two main parts the sensor head an...

Страница 6: ...13 Horizontal Mounting Boom 20 inch 3 4 IPS threaded aluminium pipe CSI p n 3874 Nu rail 3 4 x 3 4 CSI p n 1017 Allen Wrench 5 32 CSI p n 4697 3 Installation 3 1 Siting When installing the KH20 sensor...

Страница 7: ...the two tubes is positioned on top as shown in Figure 1 Gather any loose cables and tie them up using cable ties onto the tripod or tower mast FIGURE 1 Mounting KH20 onto a tripod 3 2 3 Mounting the...

Страница 8: ...s box later on FIGURE 2 Proper mounting position of the electronics box If the electronics box is not pushed all the way up during mounting you will not have enough room to attach the connectors to th...

Страница 9: ...n the two pan head screws to secure it in place 6 Gather any loose cables and tie them up using cable ties onto the tripod or tower mast 4 Wiring The KH20 sensor is shipped with a power signal cable w...

Страница 10: ...cients are calculated See Appendix A for more information on KH20 calibration TABLE 2 KH20 Calibration Ranges Ranges Vapor Density g m3 Full Vapor Range 2 19 Dry Vapor Range 2 9 5 Wet Vapor Range 8 25...

Страница 11: ...f these constants and enter the appropriate values found from the calibration sheet of the KH20 Unit Definitions Units Units ln_mV ln mV natural log of the KH20 millivolts mV millivolts rho_w g m 3 Wi...

Страница 12: ...AL Min 10 Minimum 1 batt_volt FP2 False False Average 1 panel_temp FP2 False Average 2 kh 1 IEEE4 False EndTable Raw time series data DataTable ts_data True 1 DataInterval 0 SCAN_INTERVAL mSec 100 Sam...

Страница 13: ...the test explained below First make sure the UV light is emitted from the source tube To do this you may look into the source tube the longer of the two tubes and you should see a bright blue light e...

Страница 14: ...o see if the source tube window has been scaled get a clean dry cotton swab and slide it across the source tube window The scale is not visible to the naked eye but if the window is scaled you will fe...

Страница 15: ...ngth for the KH20 sensor and w is the water vapor density w wx k e T A 1 If we express the transmissivity T in terms of the light intensity before and after passing through the material as measured by...

Страница 16: ...mV vs Vapor Density Description Values Slope xkw 0 205 Y Intercept ln V0 8 033 If we substitute these values along with the measured lnV into equation A 3 we can obtain the water vapor density w Campb...

Страница 17: ...he data shown in Table A 2 is from an actual KH20 TABLE A 2 Final Calibration Values for KH20 Vapor Range g m3 Slope xkw Y Intercept ln V0 Coefficient kw Full Range 1 74 19 25 0 205 3087 0 144 Dry Ran...

Страница 18: ...Appendix A Calibrating KH20 A 4...

Страница 19: ......

Страница 20: ...a Corp CSC 11564 149th Street NW Edmonton Alberta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Centro Caribe S A CSCC 300 N Cementerio Edificio Breller Santo Doming...

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