Cr3000 data logger

Manufactured by Campbell Scientific

Sourced in United States

The CR3000 data logger is a compact, high-performance device designed for a wide range of measurement and control applications. It features an advanced measurement engine, flexible programming capabilities, and a rugged design to withstand harsh environments. The CR3000 collects and records data from various sensors, providing a reliable solution for data acquisition and monitoring tasks.

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Lab products found in correlation

Li 7500, by LI COR (2 mentions) Csat3, by Campbell Scientific (2 mentions) Li 7200, by LI COR (1 mentions) Cr1000 data logger, by Campbell Scientific (1 mentions) Li190sb, by LI COR (1 mentions) Hmp45c, by Campbell Scientific (1 mentions) Cr1000 dataloggers, by Campbell Scientific (1 mentions)

4 protocols using cr3000 data logger

Eddy Covariance Flux Measurements

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Continuous flux measurements with the eddy covariance (EC) technique are performed in 49 m height on the scaffolding tower since July 2014 using an ultrasonic anemometer (CSAT-3, Campbell Scientific Inc., Logan, UT, USA) and an open-path infrared gas analyser (LI-7500, LiCor Inc., Lincoln, NE, USA) for carbon dioxide (CO

_{2}

), water vapour (H

_{2}

O), sensible heat (H) and momentum (

τ

) fluxes^{88 (link),89 (link)}. The sonic anemometer is directed to west-south-west according to the main wind direction prevailing in the area. High-frequency raw data are acquired with a CR3000 data logger (Campbell Scientific Inc., Logan, UT, USA) and collected, pre-processed and archived with the EDDYMEAS data acquisition module of Eddysoft⁹⁰. Sampling frequency for wind components, sonic temperature and CO

_{2}

and H

_{2}

O concentrations is 20 Hz. Since spring 2016 an additional EC system according to ICOS standards (GILL HS-50, Gill Instruments Ltd., Lymington, UK and LI-7200, LiCor Inc., Lincoln, NE, USA) was installed on the tower in the same height until Oct. 2018 and was moved to 45m height thereafter.

Pohl F., Werban U., Kumar R., Hildebrandt A, & Rebmann C. (2023). Observational evidence of legacy effects of the 2018 drought on a mixed deciduous forest in Germany. Scientific Reports, 13, 10863.

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Quantifying Weather Variables Driving Warm Spell

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Four attributes of weather were used to describe the November 2017 warm spell—air temperature, vapor pressure deficit (calculated from temperature and relative humidity), incoming shortwave radiation and soil moisture. Air temperature and relative humidity were measured using an HMP155A probe (Vaisala, Finland) and incoming shortwave radiation was measured using a CNR4 radiometer (Kipp and Zonen, The Netherlands). Both instruments were mounted 80-m above ground level at the top of the Warra Flux tower. Data was processed to 30-min averages and logged onto a CR3000 datalogger (Campbell Scientific, Logan, USA).
Soil moisture was measured by time-domain reflectometry using two CS616 soil moisture probes (Campbell Scientific, Logan, USA) each installed at a depth of 20 cm. These probes were installed in two pits approximately 40 m west of the tower. Soil moisture data were processed to 30-min averages and logged onto a CR1000 datalogger (Campbell Scientific, Logan USA).

, & Wardlaw T.J. (2022). Eucalyptus obliqua tall forest in cool, temperate Tasmania becomes a carbon source during a protracted warm spell in November 2017. Scientific Reports, 12, 2661.

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Cocoa Bean Roasting Optimization

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Cocoa beans were selected with the following criteria: mass between 1.0 and 2.0 g, firm, not flat, and with intact shells. Cocoa beans that did not fall within these parameters were excluded in order to maintain uniformity of samples. Cocoa beans (100g) were roasted on a fine wire mesh tray in a BD-53 Binder oven (Tuttlingen, Germany) preheated for 20 min to 100, 130, 150, 170, or 190°C. Samples were roasted for 10, 20, 30, or 40 min. A full-factorial experimental design was employed and each treatment was repeated three times. Internal bean temperature was monitored during roasting. In brief, 15 beans were selected in each treatment, a one-millimeter hole was drilled into the center of each bean and an OMEGA Type T thermocouple (Stamford, CT) was fitted into the hole. The thermocouple was then sealed with fast-drying superglue. Internal bean temperature and oven temperature were monitored using a CR3000 data logger (Campbell Scientific, Logan, UT) with a 15 s sample rate. Upon removal from the oven, samples were immediately cooled in liquid nitrogen and beans were stored in heat-sealed polyester/polyethylene bags (ProAmpac, Cincinnati, OH) at −80°C until further use within 60 d of production.

Stanley T.H., Van Buiten C.B., Baker S.A., Elias R.J., Anantheswaran R.C, & Lambert J.D. (2018). Impact of Roasting on the Flavan-3-ol Composition, Sensory-Related Chemistry, and In Vitro Pancreatic Lipase Inhibitory Activity of Cocoa Beans. Food chemistry, 255, 414-420.

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Comprehensive Ecosystem Flux Monitoring

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Since August 2012 at the center of core experimental area, the CO₂ fluxes were detected using an CO₂/H₂O analyzer (LI‐7500, Li‐Cor Inc., Lincoln, NE, USA) mounted at 2 m above the soil surface, and a 3D sonic anemometer (CSAT3, Campbell Scientific Inc., Logan, UT, USA). A CR3000 datalogger (Campbell Scientific Inc.) was used to collect and record 10‐Hz and half‐hour mean fluxes data.
The photosynthetically active radiation was measured using a LI190SB (Licor Inc.), and net radiation (R_n) was determined using a CNR‐1 (Kipp & Zonen Inc., The Netherlands). A HMP45C (Campbell Scientific Inc.) was used to detect air relative humidity and temperature. A 52203 rain gauge (RM Young Inc., USA) was used to determine rainfall. Soil volumetric water moisture (SWC) and temperature at one soil profile (5, 20, and 50 cm depths) were recorded with CS616‐L TDR probes (Campbell Scientific Inc.) and 105T thermocouples (Campbell Scientific Inc.), respectively. Three HFT‐3 plates (Campbell Scientific Inc.) at 5 cm soil depth were used to detect soil heat flux (G). The half‐hour values of all above variables were stored by CR1000 dataloggers (Campbell Scientific Inc.).

Tang Y., Jiang J., Chen C., Chen Y, & Wu X. (2018). Rainfall pulse response of carbon fluxes in a temperate grass ecosystem in the semiarid Loess Plateau. Ecology and Evolution, 8(22), 11179-11189.

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