Hagner EC1 UV-A Digital Radiometer / Lux meter

NOTE
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Hagner Digital Radiometer EC1 UV-A
The Hagner Digital Radiometer, model EC1 UV-A, is a small, handy and extremely easy-to-use
instrument for accurate measurement of radiation over a range of 0.001-2,000 W/m 2 with both
automatic zeroing and on/off switch, the only controls needed are a four-position range selection
switch and a hold button for retaining the display value.
Operation
To open the lid, press the forward part lightly downward with your thumb and at the same time pull
the latch upwards with the first two fingers of the same hand. The Radiometer comes on when the
cover is opened and turns off when it is closed. Move the range switch to the range which will give
the greatest accuracy and read the display. The hold function keeps the reading on the display until
the hold button is released. Full instructions can be found on the inside of the cover.
Specification
Detector : Silicon photodiode
Measuring range : 0.001-2,000 W/m² (0.1-200,000 µW/cm²)
Spectral sensitivity : 315-380 nm
Accuracy : Better than ±4% (±1 in last digit)
Temperature drift : 21°C -0.15% / °C
Power Supply : 9 Volt battery type PP3 Alkaline
Dimensions : 135 x 75 x 35 mm
Weight : 0.19 Kg (EC1-X 0.48 Kg with carrying case)