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) |
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