The probe has an array of 64 PAR sensors embedded in a 1 m long probe, and is connected via an RS-232 cable to a PC or hand-held
Data Collection Terminal D-PSION2. When reading is taken, all sensors are scanned and the measurements are transmitted to the D-PSION2 terminal or PC. The average light level
along the probe is calculated, and all of the individual sensor readings are available if required for detailed PAR mapping.
An operating button on the probe handle enables successive readings to be taken quickly and simply on demand. Alternatively, unattended
logging can be conducted under program control from the terminal or PC. Readings are in units of PAR quantum flux (µmols m-2 s-1).
| Features
- Measures incident and transmitted PAR in plant canopies
- Direct calculation and display of Leaf Area Index (LAI)
and transmission fraction
- Optional Beam Fraction Sensor for measuring Direct
and Diffuse components of incident light
- Portable, weatherproof and battery powered for unattended logging
Radio Link Option for SunScan Canopy Analysis System
- Features radio link between SunScan Probe and BF3 reference sensor
- Eliminates the connecting cable
- Distances up to 250m (line of sight) 100-200m practical range
- Licence-free frequencies
- System Radio Link upgrades available
|
Specifications
Active area
1000 x 13 mm wide Sensor spacing 15.6mm
Spectral response
400-700 nm (PAR)
Measurement time
120ms
Maximum reading
2500 µmol m-2 s-1
Resolution
0.3 µmol m-2 s-1
Linearity
better than 1%
Accuracy
±10%
Analogue output
1 mV per µmol m-2 s-1
Serial interface
RS-232, 9 pin female "D" connector
Environmental
Protected to IP65,
0° - -60° C working temperature
Size (overall, mm)
1300 (l) x 100 (w) x 130 (h)
Power
4 x AA Alkaline cells (lifetime up to 1 year) |
