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Hydrostatic Sensor Page 1 of 2 <br />0 VEEDER-ROOT <br /> <br />Contact Us I Site Map I swie <br />Home Extranet Products Locate Distributor Locate Service FMSOnline Support Worldwide Company News & Events <br />Hydrostatic Sensor <br />For use with TLS and ILS Systems <br />Veeder-Root's Hydrostatic Reservoir Sensor accurately detects fluid <br />level change in the reservoir and interstice of a double-wall storage <br />tank. Dual-float and single-float technology models are ideal for <br />locations with high or low water tables. <br />Available in a dual-float or single-float configuration. The Dual-Float <br />Hydrostatic Sensor is ideal for high groundwater areas, and can <br />differentiate between a high level alarm condition and a low level <br />alarm condition. If an inner-wall leak occurs, the brine solution seeps <br />into the tank lowering the brine level in the reservoir. The Dual-Float <br />Sensor will then trigger a low level alarm. If an outer-wall leak <br />occurs, the groundwater seeps into the reservoir. The dual-float <br />sensor will then triggers a high level alarm. <br />The Single-float sensor is ideal for low groundwater areas, since it only detects low level alarm <br />conditions. If an inner wall leak occurs, the brine solution seeps into the tank. If an outer-wall leak <br />occurs, the brine solution leaks out of the tank. In both cases, the brine level decreases and the <br />Single-Float Sensor triggers a low level alarm. <br />This product is designed to meet California's requirement for secondary space monitoring for tanks as <br />required by AB 2481. <br />Features <br />Dual-float sensor alarm conditions: <br />• Leak in inner wall triggers a low level alarm <br />• Leak in outer wall triggers a high level alarm in high groundwater areas; low level alarm in low <br />groundwater areas <br />Single-float sensor alarm conditions: <br />• Leak in inner or outer wall triggers a low level alarm in low groundwater areas <br />Temperature Rating <br />Storage: -40 degrees C to + 70 degrees C <br />Operating: -25 degrees C to +40 degrees C <br />Rests in salt brine solution of up to 30% calcium chloride <br />Cable length: 12 feet Single-Float Sensor Dimensions: 6.0" high, 2.5" diameter <br />Dual-Float Sensor Dimensions: 19.3" high, 2.5" diameter <br />• Withstands removal from reservoir several times a year without sensor damage <br />• Clear plastic housing for visual inspection or float operation <br />Standard Models <br />Form No. Description <br />794380-301 Single-Float Hydrostatic Reservoir Sensor <br />794380-303 Dual-Float Hydrostatic Reservoir Sensor <br />ATG/TLS Monitoring Products <br />ATG/TLS Monitoring Consoles <br />& Accessories <br />Wireless Tank Gauging <br />Tank Measurement <br />Sump Monitoring <br />Dispenser Pan Monitoring <br />Double Wall Tank Monitoring <br />Interstitial Sensor for Steel <br />Tanks <br />Interstitial Sensor for <br />Fiberglass Tanks <br />Solid State Discriminating <br />Interstitial Sensor <br />Hydrostatic Sensor <br />Micro Sensor <br />Monitoring Wells <br />Monitoring & Installation <br />Accessories <br />Product Line Monitoring <br />New Environmental Products <br />Red Jacket Products <br />Fuel Management Services <br />Petroleum Measurement <br />Product Brochures <br />PAGE 98 <br />http://www.yeeder.corn/page/HydroSensor 5/22/2007