GENEQ > Meteorology > Precipitation > Visibility Sensor
| Present Weather Sensors for Precipitation and Visibility |
| Model WIVIS® & OWI™ |
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WIVIS® and OWI™ sensors are the best
solution for remote, realtime present weather observation. Both instruments
use advanced optical technology to measure precipitation rate and identify
precipitation type. The WIVIS® provides the added bonus of visibility
measurement making it the best present weather detector. The OWI™ is
the more affordable alternative with true present weather sensing capabilities.
From Antartica to Saudi Arabia and Switzerland to Austria, our sensors are reliable upon worldwide. The WIVIS and OWI can be found working for universities, state DOTs and municipalities, airports, and many other government agencies. If your needs involve airline safety (in AWOS systems), road weather, research, or synoptic observation, the present weather sensors will do the job. |
| ADVANTAGES |
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| ADVANCED OPTICAL TECHNOLOGY |
| The WIVIS® and OWI™ use the principle of optical scintillation to measure precipitation. This technology has widespread acceptance from many authorities in both weather and environmental sensing including the NWS, FAA, MIT, NASA, USAF, and USGS |
| RUGGED DESIGN |
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The WIVIS® and OWI™ have very tough, lightweight frame. The frame can withstand the rigors of almost any climate. Lens heaters keep the optical path clear of ice during wintry weather. The instrument enclosure is rated IP 66. |
| EASY INSTALLATION |
| Both sensor heads have a U-bolt mounting configuration that allows you to attach the unit to a vertical pole or horizontal bar. (No special mounting pole required) |
| LONG-TERM RELIABILITY |
| The present weather sensors have more than 50 million hours of proven field operation in all climates. MTBF (Mean Time Between Failure) for the present weather instrument is ~35,000 hrs. The WIVIS® and OWI™ operate 24 hours a day, 7 days a week. |
| REPORTS NWS/WMO FORMATS |
| Both of the sensors use NWS codes as standard & WMO codes as optional. |
| LOW MAINTENANCE |
| The WIVIS® and OWI™ use proprietary algorythms that eliminate the need for frequent calibration. Field calibration every two years is typical. |
| SELF-DIAGNOSTICS AND TESTING |
| The WIVIS® and OWI™ have AGC (Automatic Gain Control) to compensate for signal loss. The sensors also employ a comprehensive self-test that updates once per minute and reports any potential problems in the output message. |
| ENHANCED EMI PROTECTION |
| Both presen weather sensors have enhanced EMI protection that allow them to operate in harsh electromagnetic environments. No other present weather instruments provide this powerful combination of high technology and proven reliability! |
| FUNCTIONAL BLOCK DIAGRAM OF THE WIVIS SENSOR |
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| WIVIS® REPORTS |
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| OWI-130-xR WIVIS® |
| Where «x» = |
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| WIVIS® OPTIONS | |
| CAT. NO. | DESCRIPTION |
| HIP-100 | Hail/Ice pellet sensor. Detect hail and ice (not stand-alone) |
| QCS-130 | Qwik collect software. Collects, displays, and archives data (compatible with all Windows systems) |
| TST-130 | Field test kit. For testing and verification of calibration |
| LDM | Limited distance modems. For distances > 100 ft (max. 7 miles) |
| OWI-131/132/133 | WIVIS kit w/o enclosure (user can use their own box) |
| OWI™ REPORTS |
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| OWI-120-xR WIVIS® |
| Where «x» = |
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| OWI™ OPTIONS | |
| CAT. NO. | DESCRIPTION |
| HIP-100 | Hail/Ice pellet sensor. Detect hail and ice (not stand-alone) |
| QCS-120 | Qwik collect software. Collects, displays, and archives data (compatible with all Windows systems) |
| TST-130 | Field test kit. For testing and verification of calibration |
| LDM | Limited distance modems. For distances > 100 ft (max. 7 miles) |
| OWI-121/122 | OWI kits w/o enclosure. |
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WIVIS sensor provides weather readings to an ITS system. |
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When visibility is not required, the OWI is great for present weather detection. |
| SPECIFICATIONS | ||
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WIVIS
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OWI
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| Performance | ||
| Present Weather | ||
| Present weather codes |
More than 50 NWS and WMO (optional)
codes
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| Present weather type indentification |
Rain, snow, drizzle, mixed, hail*,
ice pellets*
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| Sensor data update rate |
Once per minute
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| Rain | ||
| Dynamic range |
0.1 to 3000 mm/hr
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| Accumulation |
0.001 to 999.999mm
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| Accuracy |
5% accumulation
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| Resolution |
0.001mm
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| Snow | ||
| Dynamic range |
0.01 to 50 mm/hr water eq.
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| Accumulation |
0.001 to 999.999 mm water eq.
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| Accuracy |
20% accumulation (depends on snow
density)
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| Resolution |
0.001mm
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| Visibility | ||
| Dynamic range |
0.001 to 3km (10km optional)
0.001 to 1 mile (7 miles optional) |
N/A
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| Accuracy |
20% up to 3km
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N/A
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| Time constant |
5 minute harmonic
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N/A
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| Contrast threshold |
5%
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N/A
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Electronics
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| Power requirements | 110VAC, 50/60Hz, 50VA (other available) | 110VAC, 50/60Hz, 40VA (other available) |
| Fusing | User supplied 1.0 a slow blow | |
| Signal output | RS232 ASCII | |
| Transient protection | All power and signal lines protected | |
| Environmental | ||
| Temperature | -40 to 50°C (-40 to 122°F) | |
| -55 to 55°C optional | ||
| Humidity | 0-100% | |
| Precipitation dust | NEMA-4 type protection | |
| Physical | ||
| Head size (WxHxD) |
740 x 118 x 250 mm
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| Head weight |
4.5kg
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| Enclosure size (WxHxD) |
305 x 465 x 230 mm
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| Enclosure weight |
11kg
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