Designed for outdoor measurement of photosynthetically active radiation (PAR) in natural daylight. It has been specifically designed for: Agricultural meteorology Studies of crop growthPARLITE can be used under all weather conditions. The sensor measures the PAR received from the entire hemisphere. PARLITE uses a specially designed optical filter to provide a spectral response between 400 and 700 nm. PHOTOSYNTHETIC ACTIVE RADIOMETER LITE uses a photodiode sensor, which creates a voltage output that is proportional to the incoming radiation. Due to the unique design of the diffuser, its sensitivity is proportional to the cosine of the angle of incidence of the incoming radiation, allowing for accurate and consistent measurements. SPECIFICATIONS

0 to 10.000 µmol/m

·s4 to 6 µV/µmol/m

·s400 to 700 nm400 ±15 nm 700 ±15 nm < 0.1 s<10 %<10 % -30 ºC to +70 ºC-0.1 %/ºC (typical) RangeSensitivity (nominal)Spectral rangecut oncut offResponse time Quantum response match error (450 ... 650 nm) Directional error (up to 80 degrees)Operating temperature Temperature dependence of sensitivity

SPECTRAL RESPONSE

Spectral response of PAR LITE Solar radiation curve at sea level Spectral response of thermopile-type pyranometer
1.00.5300 400 500 1000 2000 3000 4000

Ø6 mm(2x)

(arbitrary units) Response 46 mm

Wavelength

(nm)

PAR LITE is easy to use. It can be directly connected to voltmeter or data logger. By using the sensitivity a direct readout in µmol/m²·s can be derived. For each sensor the individual sensitivity is indicated on the instrument. PAR

34.5 mm

Ø54 mm

SOLAR & ATMOSPHERIC SCIENCE

Kipp & Zonen B.V.

T +31(0)15 2755 210 P.O. Box 507 2600 AMDelft, The Netherlands F +31(0)15 2620 351 WWW.KIPPZONEN.COM E info@kippzonen.com