Ott Parsivel² Laser Present Weather Sensor
Product Number: 70.210.002.3.0Ott PARSIVEL² Laser Present Weather Sensor is a high‑precision optical disdrometer for accurate measurement of precipitation type, intensity, drop size distribution, and visibility—ideal for meteorology, aviation, hydrology, and climate monitoring.
Overview
The Ott Parsivel² is a modern laser disdrometer for comprehensive measurement of all precipitation types. The Parsivel² captures both the size and speed of falling particles, classifying them into one of 32 separate size and velocity classes. The raw data is used to calculate the type, amount, intensity and kinetic energy of the precipitation, the visibility in the precipitation, and the equivalent radar reflectivity
Benefits
The Parsivel² captures both the size and speed of falling particles by applied laser extinction method.
Classification into one of 32 separate size and velocity classes and particles distribution in numbers.
Distinction of type of present weather and calculation of the type, amount, intensity and kinetic energy of the precipitation, the visibility in the precipitation, and the equivalent radar reflectivity.
Automatic compensation of temperature induced error and laser fluctuation emittance.
Automatic compensation of contamination on optics by dust and aerosal layers.
Specifications
Technical Attributes
| Kinetic energy | 0 - 999,999 J/(m2h) |
| Special notes | Proof under laboratory conditions using an OTT test system with reference particle simulation of 0.02 in (0.5 mm), 0.04 in (1.0 mm), 0.08 in (2.0 mm) and 0.16 in (4.0 mm) ASDO configuration software supplied (basic version) |
| Dimensions (free text) | 26.4 x 23.6 x 4.5 in (670 x 600 x 114 mm) |
| Product highlights | Simultaneous measurement of 32 classes for particle sizes and velocities |
| Classification | 32 size and 32 velocity classes |
| Reports | WMO 4680/4677 (SYNOP) 4678 (METAR/SPECI) and NWS tables |
| Interface | RS-485 for all values incl. spectral data (EIA-485; 1,200 - 57,600 Baud) SDI-12 for calculated values USB for PC connection (configuration and service) Output relay for pulse output of the precipitation amount in 0.1 mm/pulse with max. 2 Hz pulse rate |
| Casing IP Rating | IP65 |
| Power supply | 10 - 28 V DC, reverse polarity protection Optimum heating output of the sensor head heating system can be guaranteed with a power supply voltage of at least 20 V DC. |
| Relative humidity | 0 - 100 % |
| Weight EU | Max. 14 lbs (6.35 kg) |
| Power Output | 0,2 mW |
| Accuracy | ± 1 size class ( 0.2 - 2 mm)
± 0.5 size class ( |
| Radar reflectivity | - 9.999 - 99.999 dBz |
| Wavelength | 650 mW |
| Power Consumption | 65 mA@24 V DC |
| Intensity Threshold | 0,001 - 47 in/h (0,001 - 1200 mm/h) |
| Protection | De-icing protection: Microprocessor controlled heating Lightning protection: Integrated |
| Measuring surface | 7.1 x 1.2 in (180 x 30 mm) |
| Visibility in precipitation | 0 - 12.4 miles (0 - 20.000 m) |
| Installation | 2 in pipe (50.8 mm), Ø 1.97 in - 2.44 in (Ø 50 - 62 mm) |
| Types of precipitation | Drizzle, rain, hail, snow ˂gt/˃ 97 % (compared to a weather observer) Snow depth intensity (volume equivalent) |
| Measurement technology | Laser optical |
| IEC/EN 60825-1 | 2014 |
| Measurement Range EU | Size: Liquid precipitation: 0.008 - 0.315 in (0.2 - 8 mm) Solid precipitation: 0.008 - 1.0 in (0.2 - 25 mm) Velocity: 0.65 - 65.6 ft/s (0.2 - 20 m/s) Velocity: 0,65 - 65.6 ft/s (0.2 - 20 m/s) |
| Temperature range | -40 - 158 °F (-40 - 70 °C) |
| Laser Class | 1 |
| Heating capacity | 50 W (default) 100 W (adjustable) |
| Standards | EN 61326-1: 2013, CE compliant 2014/30/EU, CE compliant |
Resources
Brochures (4)
Software/Firmware (9)
Manuals (5)
Application Notes (2)
Certificates (1)
Bulletins (1)
6610001432
Ott Parsivel ASDO Application Software