Optic Sonsors

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TitlePAR Photosynthetically Active Radiation Sensor
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The ideal spectral response for a PAR sensor gives equal emphasis to all photons between 400 and 700 nm. Satlantic PAR sensors use a high quality filtered silicon photo diode to provide a near equal spectral response across the entire wavelength range of the measurement.




Sample Rate: 0.125 - 4 Hz (or auto)
Cosine Collector: 0 - 60º 3%; 60 – 85º 10%

Part PAR SPECIFICATIONS
PHYSICAL SPECIFICATIONS Housing Material: Available in Plastic or Titanium
Depth Rating: 600 m (plastic) or 7000 m (titanium)
Weight (in air): 0.127 kg (plastic) or 0.643 kg (titanium)
Length: 7.6 cm (plastic) or 8.3 cm (titanium)
Width: 3 cm (plastic) or 3.8 cm (titanium)
ELECTRICAL SPECIFICATIONS Input Voltage: 6 - 30 VDC
Current DRaw: 5 mA (analog) or 14 mA (digital)
Analog Output Range: 0 - 5 V (linear or log amp)
DIGITAL TELEMETRY Response Time: 0.1 - 0.5 seconds (light level dependent)
Digital Output Resolution: 24-bit ADC data represented in 32-bit offset binary format
RS-232 Output Rate: 19200 bps
OPTICAL SPECIFICATIONS Calibrated range: 0 – 5000 mol photons•m-2•s-1
Calibration accuracy: ± 5% NIST Traceable (in air)
Bandpass: 400 –700 nm (in air)