Senseur météorologique et de visibilité

Optical Scientific - OWI-430 DSP-WIVIS

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Description

The OWI-430 DSP-WIVIS™ is the most advanced present weather and visibility sensor ever made.

The fully automated instrument provides accurate visibility, present weather and precipitation measurement in a single sensor. This next generation intelligent sensor uses all digital signal processing (DSP) for no-drift high-accuracy results. A patented environmentally adaptive algorithms use artificial-intelligence technology derived from over 100 million field hours of real-world data from our sensors installed around the world. The result is the most advanced weather sensor in the world.

The DSP-WIVIS™ measures visibility and detects and quantifies rain, snow, drizzle, freezing and mixed precipitation conditions. The sensor is designed for year-round continuous operation in all climates from Antarctica to tropical rain forats. This advanced weather sensors provide critical weather information to airport, highway, military, research and meteorological weather information systems all over the world with over 2000 sysyems fielded. Sensing the environment is not a sideline business for us - it is our primary focus. When you need superior present weather information and high reliability, nothing else can match the DSP-WIVIS™

DSP-WIVIS™ Advantages

Combines present weather identification, precipitation measurement and visibility into a single rugged packages
Outstanding performance yet low cost
DSP based - no field calibration required
Advanced scintillation tedhnology
Intelligent algorithms based on over 100 million hours of OSi sensor field data
Rugged design - field proven from tropical tio sub-arctic environments
Easy installation and integration
Long-term reliability - designed for unattented operation 24/7/365
Unafected by dust or buildup on lenses
Reports over 50 NWS / WMO codes
Virtually no maintenance required
Built-in self diagnostics and testing
Enhanced EMI and surge protection
True RVR reporting option available

Performance Specification

Measurement Technique	Scintillation with optical forward scatter and optional acoustic*
Data Reporting Update Rate	1 minute
Present Weather Codes Reported	More than 50 NWS and WMO codes
Present Weather Type Identification	Rain, snow, drizzle, mixed, hail and ice pellets*
Snow / Rain Accumulation	.001 to 999.999 mm
Snow / Rain Measurement Resolution	0.001 mm
Rain Dynamic Range	0.1 to 3000 mm/hr
Rain Measurement Accuracy	5% accumulation
Snow Dynamic Range	0.01 to 300 mm/hr
Snow Measurement Accuracy	10% accumulation
Hail / Ice Pellet Reporting Accuracy	Correct ID better than 90% of time*
Visibility Dynamic Range	0.001 to 10+ km (metric and ANSI units and extented ranges available)
Visibility Accuracy	10% to 5 km, 15% to 10+ km
Visibility Time Constant	3 minute harmonic
Visibility Contrast Threshold	5%
Ambient Light Dynamic Measurement Range	0 to 9,990 candles / m2

Electronic Specification

Power Requirements	10-18 VDC, 3 A nominal (HIP-100 requires 110/220 VAC, 100 VA)*
Transient Protection	All power and signal lines fully protected
Signal Output	RS-232 ASCII, simple polled protocol

Environmental Specification

Temperature	-40° to 122° F (-40° to 50° C)
Humidity	0 to 100%
Precipitation / Dust	NEMA 4 type protection

Physical Specification

DSP-WIVIS Sensor Size	35 x 5 x 11 inches (890 x 130 x 280 mm)
DSP-WIVIS Sensor Weight	10 lbs. (4.5 kg)
Cable Lenght	25 ft. (7.7 meter)
Optional HIP-100 Size	34 x 4 x 9 inches (865 x 90 x 216 mm)
Optional HIP-100 Weight	5 lbs. (2.3 kg)
_{* Reference to acoustic / hail and ice particles requires optional HIP-100 Acoustic Hail and Ice Pellet add-on.}
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