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Item#33 <br /> VEEDER-ROOT <br /> Hydrostatic Sensor <br /> For use with TLS and ILS Systems <br /> Veeder-Root's Hydrostatic Reservoir Sensor <br /> accurately detects fluid level change in the <br /> `.../� reservoir and interstice of a double-wall storage <br /> tank. Dual-float and single-float technology <br /> models are ideal for locations with high or low <br /> water tables. <br /> o Available in a dual-float or single-float <br /> configuration. The Dual-Float Hydrostatic Sensor <br /> is ideal for high groundwater areas, and can <br /> differentiate between a high level alarm condition and a low level alarm <br /> condition. If an inner-wall leak occurs, the brine solution seeps into the tank <br /> lowering the brine level in the reservoir. The Dual-Float Sensor will then <br /> trigger a low level alarm. If an outer-wall leak occurs, the groundwater <br /> seeps into the reservoir. The dual-float sensor will then triggers a high level <br /> alarm. <br /> The Single-float sensor is ideal for low groundwater areas, since it only <br /> detects low level alarm conditions. If an inner wall leak occurs, the brine <br /> solution seeps into the tank. If an outer-wall leak occurs, the brine solution <br /> leaks out of the tank. In both cases, the brine level decreases and the <br /> Single-Float Sensor triggers a low level alarm. <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 <br /> areas; low level alarm in low groundwater areas <br /> Single-float sensor alarm conditions: <br /> Leak in inner or outer wall triggers a low level alarm in low <br /> 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 <br /> 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 <br /> damage <br />