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&C-DER Voa'_ <br /> Hydrostatic Sensor Installation Guide System Description <br /> seeps out of the tank. In both cases, the brine level decreases and the Single-Point Sensor triggers a low level <br /> alarm. <br /> The housing is constructed of clear PVC, allowing the operator to pull the sensor from the reservoir to visually <br /> inspect float operation.A vented riser cap restricts liquid from entering the reservoir. <br /> DETECTION CAPABILITIES <br /> • Dual-Point 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 and a Low level alarm in low groundwater <br /> areas. <br /> • Single-Point sensor alarm conditions: <br /> - Leak in inner or outer wall triggers a low level alarm in low groundwater areas. <br /> OPERATING CAPABILITIES <br /> • Operating temperature Range: -25°C to +50'C <br /> • Storage Temperature Range: -40°C to +70°C <br /> • Operates in salt brine solutions containing up to 30%calcium chloride. <br /> • Cable length: 12 feet <br /> • Single-Point Sensor Dimensions: 6.0"high, 2.5" diameter <br /> • Dual-Point Sensor Dimensions: 16.3" high (-302) or 17.3" high(-303), 2.5"diameter <br /> • Clear PVC housing permits visual inspection of float operation. <br /> SENSOR MODELS <br /> Table 1:Sensor Part Numbers <br /> Form No. Description <br /> 794380-301 Single-Point Hydrostatic Sensor <br /> ---� 794380-302 or-303 Dual-Point Hydrostatic Sensors <br /> INSTALLATION KITS <br /> The older metal riser cap and vent tube are being phased out and replaced with a plastic riser cap kit. Part <br /> numbers for both types are listed below. <br /> Old style Metal Riser Cap and Vent Tube <br /> • Metal Riser Cap (P/N 329992-001) <br /> • Vent tube (P/N 329981-001) <br /> New Style Plastic Cap Kit(P/N 330020-435) -see Table 2 and Figure 1 below for kit contents. <br /> 3 <br />