Eldonet Dosimeter

The ELDONET dosimeter represents a major advancement in solar radiation measurement. The versatile, low cost three-channel dosimeter makes it an ideal instrument for short-term and long-term measurement of solar and artificial radiation with high precision.

Features:

• Three-channel dosimeter for continuous monitoring of solar and artificial radiation:
  
  • UV-B (280 - 315 nm)
  • UV-A (315 - 400 nm)
  • PAR (400 - 700 nm)
• High accuracy due to spectroradiometric calibration with PTB traceable quartz halogen calibrated lamps

• Low cosine error
• Resolution
  • < 0.1 W/m² (PAR)
  • < 0.01 W/m² (UV-A)
  • < 0.0005 W/m² (UV-B)

• Ease-of-use software (WinData2000) for WINDOWS for online measurements and graphical and numerical display
• Software to calculate hourly, daily, monthly and annual doses
• Automatic data recording in ASCII files
• Frequent measurements (ca. 60 per minute) and integration over 1-min intervals
• Temperature internally controlled (30°C) to prevent spectral shifts due to temperature changes
• Dynamic range 2¹²
• External temperature measurement
• Level gauge for exact horizontal alignment
• Ulbricht integrating sphere for direct and diffuse radiation
• Custom-made hemispherical quartz dome
• Sensitive UV and VIS photodiodes
• High precision integrated circuits with low voltage offset and temperature compensation
• Superior linearity and long-term stability of calibration
• Rugged, fully weatherproof instrument case
• Size 250 x 200 x 185 mm (length x width x height), 3150 g without cables

 

 

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Terrestrial Autonomous Eldonet Dosimeter

The Terrestrial autonomous microprocessor ELDONET instrument is a dosimeter which measures solar or artificial radiation in three biologically important spectral bands: UV-B , UV-A and PAR .

The internal data logger can store up to 3 months of data. It is powered by an internal 12V solar battery (External solar panel is optional).

Applications:

The versatile, low cost three-channel dosimeter makes it an ideal instrument for short-term and long-term measurement of solar and artificial radiation with high precision.

Features:

• With additional built-in 256 MB flash memory and internal clock.
• The opening is protected by a UV-transmitting acrylic window.
• Includes a 10 cm integrating sphere, three custom-made filters and sensors for UV-B, UV-A and PAR plus external and internal temperature sensors.
• The erythemal UV and the UV index are calculated from the three radiation channels.
• Internal temperature control and shutter for dark measurement.
• External temperature measurement.
• Internal 10 MHz microprocessor for low level logic (shutter control, data acquisition, averaging, internal temperature control).
• With switching amplifiers (1 x, 10 x, 100 x, 1000 x), internal solar battery and power controller.
• Weatherproof housing with additional reflective coating for heat removal on all exposed surfaces with 2" quartz dome.
• Calibration for cosine response, absolute irradiances in all three light channels and temperature.
• Safety sensors for excess temperature and humidity in the instrument.
• Level gauge for exact horizontal alignment.
• Including WinData2000 Windows software to measure and display radiation in the three radiation channels as well as the two temperature channels.
• Evaluation program which calculates the hourly and daily doses for any given period.

Specifications
Radiation Ranges:	UV-B (280 - 315 nm)
	UV-A (315 - 400 nm)
	PAR (400 - 700 nm)
Resolution:	< 0.1 W/m2 (PAR)
	< 0.01 W/m2 (UV-A)
	< 0.0005 W/m2 (UV-B)
Power:	12 VDC power; Optional - External solar panel with mounting set
Computer Interface:	Serial port
Temperature range:	-40 to 70°C
Case:	Rugged, fully weatherproof instrument case
Data Recording:	The internal data logger can store up to 3 months of data; WinDose for online measurements and graphical and numerical display; Automatic recording in ASCII files
Display:	Internal 2-line LCD display under the top transparent lid
Data Storage:	Built-in 256 MB flash memory

 

Download a print version of Terrestrial Eldonet Dosimeter

Download a print version of Terrestrial Autonomous Eldonet Dosimeter

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