This precipitation-measuring optical disdrometer measures the size distribution, fall velocity and rain rate of droplets from 50 µm to greater than 6.4 mm. It is used by the National Weather Service for rain and drizzle research.

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              Manual for the MPS's Particle-Analysis Software

• 2-D distrometer for precipitation measurements

• Provides 2-D imaging of precipitation particle sizes and shapes

• Provides 1-D histogram of particle sizes

• 64-element diode array, 20-cm path length

• 25, 50 or 100-micron resolution (specify when ordering)

• Particle-by-particle fall velocity: 5 - 500 cm/sec

• Inter-arrival time of particles: 0.001 - 100 sec

• Spinning disk calibration unit

• High-speed serial RS-422 or RS-232 interface

• Optional PADS software provides powerful data analysis tools to display, record and play back data

• Powered by 115 V / 60 Hz or 230 V / 50 Hz (specify when ordering)

• Power consumption: 200 W

• All-weather enclosure 44 cm (L), 44 cm (H) and 18 cm (W)

• Free-standing swivel-mount (post not included)

• Wind vane to align sample path with wind flow

• System includes spectrometer, test cables, spinning disk, shipping case, one day of training at DMT's facility, and one-year warranty