Captcha
View our Privacy Policy
Feedback





Captcha
View our Privacy Policy
Feedback

OTT Parsivel² – Laser Weather Sensor

Loading...

OTT Parsivel² – Laser Weather Sensor

    • Accurate – the exact size and speed of every precipitation particle that passes in the measurement area is recorded and from these measurements all relevant meteorological parameters are derived
    • Maintenance-free –  no moving parts or a collection bucket, unlike tipping bucket rain gauges
    • Durable – continuous and precise precipitation data in all environmental conditions with integrated overvoltage protection
    • Energy-efficient – economical electronics and galvanically separate, controllable head heating, providing a power supply that is flexibly designed with minimal power consumption
    • Easy-to-use – integrated USB port configuration and online monitoring for simple PC data review with OTT ASDO user software
    • Precipitation Measurement: complete precipitation measurement including particle size, volume, and intensity. Precipitation size and type are each calculated into one of 32 classes, as specified by the World Meteorological Organization (WMO)
    • Monitoring Road Conditions: precipitation amount and composition are combined with general visibility measurements to provide an accurate picture of road conditions
    • Early Flood Warning: when combined with water level sensors, the Parsivel2 is the central component in an early flood warning system
    • Erosion Modeling: kinetic precipitation energy calculated by the Parsivel2, paired with other parameters like ground state or relief, provides a key input for erosion models

    Measurement range  
    Particle size of liquid precipitation 0.2 …… 5 mm
    Particle size of solid precipitation 0.2 …… 25 mm
    Particle velocity 0.2 …… 20 m/s
    Type and identification precipitation intensity / amount
    Distribution of precipitation particles 32 size classes and 32 velocity classes
    8 precipitation types (drizzle, drizzle/rain, rain,snow/rain, snow, snow grain, sleet, hail)
    radar reflectivity Z
    Weather code reports WMO 4680/4677 (SYNOP), 4678 (METAR) and NWS tables differentiation of precipitation types drizzle, rain, hail, snow ; > 97 % accordance with human observer values
    Visibility at precipitation measurement range (MOR) 100 … 5000 m; ±10%
    Rain rate  
    Minimal intensity 0.001 mm/h drizzle/rain
    Maximal intensity 1.200 mm/h
    Accuracy ±5 % (liquid) / ±20 % (solid)
    Optical sensor wave length 780 nm, 0.5 mW output power
    Laser diode Laser class 1, 1 (21 CFR 1040.10 and 1040.11), 1 (IEC/EN 60825-1 A2:2001)
    Beam dimension W x D 180 x 30 mm
    Measurement area 54 cm², detection of border events
    All weather conditions proofed self-controlled heating against ice or snow coverage of housing (min. 24 V DC)
    Housing material powder-coated aluminum housing
    Protection class IP65, resistant to salt spray
    Environmental conditions  
    Temperature range -40 … +70 °C
    Humidity 0 … 100 % rel. air humidity
    Dimensions (HxWxD) 670 x 600 x 114 mm

Featured Products