PQS1 PAR Quantum Sensor for Accurate Measurement
The Kipp and Zonen PQS1 PAR photosynthesis sensor (quantum sensor) accurately measures the amount of photosynthetically active radiation. The photosynthesis sensor is ideal for agricultural studies and research.
- Spectral range (50% points)
- 400 to 700 nm ± 4 nm
- Sensitivity PQS 1
- 4 to 10 µV/µmol/m²·s
- Impedance
- 240 Ω
Overview
In detail
Mounting
The mounting flange incorporates a bubble leveller and adjustment screws for easy levelling. A threaded hole takes the accessory screw-in mounting rod for fitting to masts and poles. Two PQS1 PAR sensors can easily be bolted back-to-back and fitted with the mounting rod to make a simple PAR albedometer.
Cables and accessories
The standard cable length is 5 m, with an option of 15 m. PQS1 is ideal for use with the METEON handheld display and data logger for field test use.
Applications
The instrument is designed for continuous outdoor or indoor installation, and is a good sensor for photosynthesis studies of crop growth in greenhouses, for example. It is widely used in Australia for agricultural monitoring and research.
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Specifications
Technical specifications
- Spectral range (50% points)
- 400 to 700 nm ± 4 nm
- Sensitivity PQS 1
- 4 to 10 µV/µmol/m²·s
- Impedance
- 240 Ω
- Response time PQS 1 (95%)
- < 1 µs
- Non-stability (change/year)
- < 2 %
- Non-linearity (0 to 10,000 µV/µmol/m²·s)
- < 1 %
- Directional response (up to 80° with 1000 µmol/m²·s beam)
- < 30 µmol/m²·s
- Temperature response
- < -0.12 %
- Field of view
- 180 °
- Operating temperature
- -30 °C to +70 °C
Related
Often specified alongside
Weathertech
SP Lite2 Pyranometer
- Temp
- -40 °C to +80 °C
- Spectral range (overall)
- 400 to 1100 nm
- Sensitivity
- 60 to 100 µV/W/m²
SMP21Weathertech
SMP21 Secondary Standard Pyranometer
- Temp
- -40 °C to +80 °C
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