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Symmetron data loggers on the World Wide Web, with plots and statistics for each measuring station.
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Ultraviolet sensor that measures UV radiation between 250 and 400 nanometers
SPECIFICATIONS
Absolute Accuracy
• ± 10%
Uniformity
• ± 5%
Repeatability
• ± 1%
Output
• Responsivity = 0.58 mV per W m-2,
Full sunlight = 35 mV
• Calibration Factor = 1.7 W m-2 per mV
• Range = 0 – 60 mV (0 - 102 W m-2)
Input Power
• None, self-powered
Response Time
• Less than 1 millisecond
Long Term Drift
• Less than 3% per year
Operating Environment
• Can be submerged in water with
or without mounting screw
• 0 to 100% relative humidity
• - 25 to 55 C
Materials
• Aluminum head, potted solid
Mass
• 75g
Cable
• 5 meters of twisted-pair, shielded
wire with Santoprene jacket
• Custom lengths available
Warranty
• 1 year against defects in
materials and workmanship