OSI - Model OWI-650 LP-AWS -Low-Power Portable Automated Weather Station

The OWI-650 measures visibility and detects rain, snow, drizzle, freezing and mixed precipitation conditions The OWI-650 is more than just a sensor. It is a system. No separate data acquisition system is required to add optional meteorological sensors. Implementing a portable automated weather station with weather identification and visibility sensor capability has never been easier or as cost effective.

The fully automated OWI-650 provides accurate visibility, present weather and precipitation measurements. Typical systems include other optional meteorological sensors including wind, pressure, and temperature/ humidity sensors.

OSI’s patented environmentally adaptive weather identification algorithms use artificial-intelligence technology derived from over 25 years experience and over 200 million field hours of real-world data from OSI sensors installed around the world. The result is the most advanced / easily deployable Automated Weather Station with optical weather identifier and visibility sensor available.

• Easy installation
• Portable system which reports present weather and visibility
• Intelligent algorithms based on over 200 million hours of OSI sensor field data
• Solar, Battery or AC Powered
• Small size, light weight, rugged design
• Other sensors easily added
• Data radio options available
• Separate data acquisition system not required
• Design for unattended operation
• Virtually no maintenance required
• Built-in self diagnostics & testing

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, freezing rain, snow, freezing drizzle, mist, mixed, fog, haze, clear
• Snow / Rain Accumulation: 0.001 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
• Visibility / RVR Dynamic Range (metric and ANSI units & extended ranges available): 0.01 to 10+ km, 0.001 to 7.1 miles
• Visibility Contrast Threshold: 5%
• Ambient Light Dynamic Measurement Range: 0 to 9,990 candles / m2

Electronic Specification

• Power Requirements
• Electronics: 3.6 vdc @ 375 mA
• Heaters: 12 vdc @ 600 mA
• Transient Protection: All power & 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: 21 x 8 x 4 inches (53 x 20 x 10 cm)
• DSP-WIVIS Sensor Weight: 4.25 lbs. (1.9 kg)
• Cable Length: 12 ft. (3.7 meter)

• The LPAWOS is a modular system. A partial list of options includes:
• Wind Speed/Direction
• Temperature/Relative Humidity
• LPAWOS is easily adaptable. For other options, or additional sensors contact OSI.
• OWI-650 is the end result of twenty years of devising new approaches to make our original technology more accurate, more efficient, more flexible, and more economical. It`s the most sensor for the money - ever.

Accessories

• PSB-650: AC-powered junction box
• PSB-650S: Power Junction Box w/Solar Kit
• PSB-650B: Power Junction Box w/Rechargeable Battery
• TRI-650: AWS Tripod
• Data Radio: Contact OSI