Instrument calibrations

This page lists details of instruments in use, their purchase date and where applicable their most recent calibration where known (for some elements, this is given in more detail on teh parameter page itself). Details of significant siting, logging or software changes are also shown on the pages for each element.

The only instruments in the Observatory that are routinely calibrated are the various temperature sensors.

Sensor

Manufacturer

Date purchased

Manufacturer Calibration

In house Calibration

AIR TEMPERATURE

Dry Bulb PRT

Campbell Scientific

24/03/2014

 

Summer 2014

Wet Bulb PRT

Campbell Scientific

05/09/2014

 

September 2014

HUMIDITY

Relative Humidity

Rotronic

23/03/2014

March 2014

 

SURFACE TEMPERATURES

Concrete PRT

Farnell

 

 

September 2009

Grass PRT

Farnell

 

 

April 2014

Soil PRT

Farnell

 

 

September 2009

EARTH TEMPERATURES

Temperature 5 cm PRT 003

Vaisala

January 2010

 

May 2011

Temperature 10 cm PRT 002

Vaisala

January 2010

 

May 2011

Temperature 20 cm PRT 005

Vaisala

January 2010

 

May 2011

Temperature 30 cm PRT 006

Vaisala

January 2010

 

May 2011

Temperature 50 cm PRT 007

Vaisala

January 2010

 

May 2011

Temperature 100 cm PRT 008

Vaisala

January 2010

 

May 2011

PRECIPITATION

Rainfall

Environmental Measurements

August 2014

June 2014

 

BAROMETRIC PRESSURE

Station level pressure

Druck

 

 

See parameter web page

SUNSHINE and SOLAR RADIATION See also historical metadate on Sunshine and Solar Radiation tab

Sunshine duration

Kipp & Zonen

 

April 2006

See parameter web page

Direct Beam

Kipp & Zonen

 

May 2013

Net Radiation

Kipp & Zonen

 

October 2002

Global Solar

Kipp & Zonen

 

May 2013

Diffuse Solar

Kipp & Zonen

 

May 2013

 

WIND SPEED AND DIRECTION

Wind Direction U5  (U10)

Vector Instruments

October 2010

July 2010

 

Wind speed U2

Vector Instruments

September 2014

September 2014

 

Wind speed U5  (U10)

Vector Instruments

October 2010

July 2010

 

ATMOSPHERIC ELECTRICITY

Potential Gradient

Chubb Field mill

 

July 2013

 

HEAT FLUX

Soil Heat flux plate

Hukseflux

April 2011

February 2011

 

 

 

 

 

 





 

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