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For use Witn Veeder-Root 350 Series Veeder-Roots Hydrostatic Reservoir Sensor accurately detects fluid level change in the reservoir and interstice of a double-wall storage tank or line. Dual -point and single - point technology models are ideal for loca- tions with high or low water tables. The Dual -Point Hydrostatic Sensor is ideal for high groundwater areas, and can differentiate between a high-level alarm condition and a low-level alarm condition. If an inner -wall leak occurs, the brine solution seeps into the tank or line primary space lowering the brine level in the reservoir. The Dual -Point Sensor will then trigger a low level alarm. If an outer - wall leak occurs, the groundwater seeps into the reservoir. The Dual -Point Sensor will then trigger a high level alarm. The Single -Point Sensor is ideal for low groundwater areas, since it only detects low- level alarm conditions. If an inner wall leak occurs, the brine solution seeps into the tank. If an outer-wallleak occurs, the brine solution leaks out of the tank In both cases, the brine level decreases and the Single - Point Sensor triggers a low level alarm. This Sensor should not be used to monitor the secondary space of a pressurized line. Single -Point Sump Sensor shown in 6.0" configuration length. �� VEEDER-ROOT gauges Features -•,,,kify Sig'-':: Dual -Point Sensor alarm conditions: • Leak in inner wall triggers a low level alarm • Leak in outer wall triggers a high level alarm in high groundwater areas; low level alarm in low groundwater areas. • Designed to meet California's requirement for secondary space monitoring for tanks and lines as required by AB 2481. Single -Point Sensor alarm conditions: • Leak in inner or outer wall triggers a low level alarm in low groundwater areas. • Designed to meet California's requirement for secondary space monitoring for tanks as required by AB 2481. Temperature Rating Storage: -40 degrees C to + 60 degrees C Operating: -25 degrees C to +50 degrees C Rests in salt brine solution of up to 30% calcium chloride Cable length: 12 feet Standard Models Single -Point Sensor Dimensions: 6.0" high, 2.5" diameter Dual -Point Sensor Dimensions: 17.3" high, 2.5" diameter • Withstands removal from reservoir several times a year without sensor damage • Clear plastic housing for visual inspection of float operation Sensor Form Number:794380-301 rte. Description: Single -Point Hydrostatic Reservoir Senso .. E4Z Sensor Form Number:794380-303 Description: Dual -Point Hydrostatic Reservoir Sensor S .+�fy �t�e 1,11 4� Hydrostatic Reservoir Sensor Console Capability ONMAONMEN FAL HEi-fI The Series 7943 Hydrostatic Reservoir Sensor is compatible with the foMAAMIT¢_," !;