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Ej F1 G `per 4 Vented Locking Riser Cap ► Dual -float and single -float technology models — ideal for locations with high or low water tables. ► Dual -float model differentiates between high and low level conditions. ► Sensors installed in brine -filled reservoir of double-wall tanks. ► Lockable, vented cap prevents accidental spills into monitoring area. ► Long -life construction and reusable. ► Designed and tested to comply with UL and CSA standards. Veeder-Root's Hydrostatic Reservoir Sensor accu- rately detects fluid level change in the reservoir and interstice of a double-wall storage tank. Available in a dual -float or single -float configuration. The Dual -Float Hydrostatic Sensor is ideal for high ground water areas, and can differentiate between a high level alarm condition and a low level alarm condi- tion. If an inner -wall leak occurs, the brine solution seeps into the tank lowering the brine level in the res- ervoir. The Dual -Float Sensor will then trigger a low level alarm. If an outer -wall leak occurs where ground water is above the tank, the ground water seeps into the reservoir. The Dual -Float Sensor will then trigger a high level alarm. The Single -Float Sensor is ideal for low ground water 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 -wall leak occurs, the brine solution leaks out of the tank. In both cases, the brine level decreases and the Single -Float Sensor triggers a low level alarm. The housing is constructed of clear PVC, allowing the operator to pull the sensor from the reservoir to visu- ally inspect float operation. A vented, lockable cap prevents accidental spills on the ground surface from entering the reservoir. Veeder-Root warrants the Hydrostatic Reservoir Sen- sors to be free from material defects for a period of one year from the date of installation or 15 months from the date of invoice. Detection Capabilities ► Dual -Float 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 ro w ar ► Sing e -float sensor alarm con itions: • Leak in inner or outer wall triggers a low level alarm in low groundwater areas. Operating Capabilities ► Operating Temperature Range: -25°C to + 40°C. ► Storage Temperature Range: -400C to + 60°C. ► Rests in salt brine solution of up to 30% calcium chloride. ► Cable length: 12 feet. ► Single -Float Sensor Dimensions: 6.0" high, 2.5" diameter. ► Dual -Float Sensor Dimensions: 19.3" high, 2.5" diameter. No. Withstands removal from reservoir several times a year without sensor damage. ► Clear plastic housing for visual inspection of float operation.