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The worlds most advanced present weather and visibility sensor just got better. .Now there is a relative humidity sensor option for the OWI-430. The OWI-430-RH does everything the OWI-430-DS does plus RH-aided proprietary weather algorithms provide:

  • Better discrimination of fog and dust/smoke
  • More accurate Haze and Mist Reporting
  • Very sensitive precipitation measurements without false positive readings
  • Additional relative humidity, dew point, & wet bulb parameters reported

The solid state capacitive relative humidity sensor is easily replaced in the field. Simply: unscrew the cap on the TEMP/RH probe. Pull out the old INTERCAP element. Insert the new element. Screw the cap back on. Finished. The single enclosure makes integration and installation simple making the sensor ideal for end users and system integrators.

Adding the optional HIP-100 acoustic sensor provides for enhanced hail and ice pellet discrimination. The OWI-430 family of sensors is widely used by airports and regional DOT's across the US & throughout the world. No other weather instrument can provide this powerful combination of high performance, low cost and proven reliability! No other company can provide the proven level of support and customer satisfaction that OSi does!
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Advantages

Advantages

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  • Combines RH aided present weather identification, precipitation measurement and visibility into a single rugged package
  • Advanced scintillation technology Intelligent algorithms based on over 100 million hours of OSi sensor field data
  • Rugged design – field proven from tropical to sub-arctic environments
  • Easy Installation and integration Long-term reliability – designed for unattended operation 24/7/365
  • Reports over 50 NWS / WMO codes Virtually no maintenance required
  • Built-in self diagnostics & testing Enhanced EMI and surge protection

Ordering Information

Ordering Information

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Model no: OWI-430-RH (DC powered, RS- 232 serial I/O – specify Metric or ANSI)

Accessories

Accessories

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  • HIP-100 Hail and Ice Pellet add-on sensor
  • PSB-430 AC-powered junction box

Performance Specifications

Measurement Technique

 N/A Scintillation with optical forward scatter and optional acoustic*

Data Reporting Update Rate

 N/A 1 min

Present Weather Codes Reported

 N/A More than 50 NWS and WMO codes

Present Weather Type Identification

 N/A Rain, snow, drizzle, mixed, hail and ice pellets*
Snow/Rain Accumulation1 N/A 0.001 to 999.999 mm

Snow/Rain Measurement Resolution

 N/A 0.001 mm

Snow Dynamic Range

 N/A 0.001 to 3000 mm/hr

Snow Measurement Accuracy (Accumulation)

 N/A 5 %

Hail/Ice Pellet Reporting Accuracy

 N/A Correct ID better than 90% of time*

Visibility/RVR Dynamic Range

 N/A 0.001 to 10+ km (metric and ANSI units available for all ranges), 0.001 to 30+ km (extended range option 1), 0.001 to 50+ km (extended range option 2)

Visibility/RVR Accuracy

 N/A 10% to 10 km, 15% to 20+ km, 20% to 30+ km

Visibility/RVR Time Constant

 N/A 3-minute harmonic

Visibility/RVR Contrast Threshold

 N/A 5 %

Ambient Light Dynamic Measurement Range

 N/A 0 to 9,990 candles/m²

Electronic Specifications

Power Requirements

 N/A 11-18 VDC, 3 A nominal (HIP-100 requires 110/220 VAC, 100 VA)*

Transient Protection

 N/A All power & signal lines fully protected

Signal Output

 N/A RS-232 ASCII, simple polled protocol

Environmental Specifications

Temperature

 N/A -40° to 122° F (-40° to 50° C) ºC

Humidity

 N/A 0 to 100 %

Wind Speed

 N/A 125 knot

Icing

 N/A 0.5” / hr – Heaters protect all optics

Precipitation/Dust

 N/A NEMA 4 type protection (Powder-coated aluminum)

Physical Specifications

DSP-WIVIS Sensor Size

 N/A 35 x 5 x 11 inches (890 x 130 x 280 mm) in

DSP-WIVIS Sensor Weight

 N/A 10 lb

Cable Length

 N/A 25 ft

Optional HIP-100 Size

 N/A 34 x 4 x 9 in

Optional HIP-100 Weight

 N/A 5 lb

Disclaimer

Disclaimer

 N/A * References to acoustic / hail and ice particles requires optional HIP-100 Acoustic Hail and Ice Pellet add-on. Specifications are subject to change without notice.
  • 1 Liquid water equivalent.