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Veeder-Root Sensor Application Guide <br />Hydrostatic Reservoir Sensor <br />The Hydrostatic Reservoir Sensor accurately detects fluid level change in the reservoir and interstice of a double- <br />wall storage tank. This sensor is available in a dual -point or single -point configuration. The Dual -Point version is <br />ideal for high groundwater areas, and can differentiate between a high level alarm condition and a low level alarm <br />condition. If an inner -wall leak occurs, the brine seeps into the tank triggering a low level alarm, if an outer wall leak <br />occurs, fluid seeps into the interstice triggering a high level alarm. The Single -Point version can be used in low <br />groundwater locations. If an inner -wall leak occurs, the brine seeps into the tank triggering a fuel alarm, or if the <br />outer wall leaks, the brine seeps out of the tank interstice triggering a fuel alarm. <br />Table 15. Hydrostatic Reservoir Sensor Features and Console Compatibility <br />Item <br />Description <br />Form number <br />794380-301 Single -Point (12foot [3.7m] cable); 794380-303 Dual -Point (12 foot [3.7m] cable) <br />Operating principle <br />Float switch <br />Product activation height' <br />1.74" (4.4cm) Single -Point; Low 1.2" (3cm), High 13.13" (33.4cm) Dual -Point <br />Reservoir solutions <br />Up to 506 ethylene glycol in water; up to 5046 propylene glycol in water; salt brine solution of up to 3040 CaCI <br />Operating temperature <br />-13 to +122`F (-25 to +50°C) <br />Dimensions <br />6" (15cm) high, 2.5" (6.4cm) dia. Single -Point; 17.3" (44cm) high, 2.5" (6.4cm) dia. Dual -Point <br />Compatible consoles <br />TLS-450/TLS-450PLUS, TLS4/8601 Series, TLS -350 Series, TLS -300 Series <br />Console Interface <br />Module <br />TLS -300 Series - no input module required <br />TLS -350 Series, Interstitial/Liquid Sensor Interface Module, 8 sensor input, P/N 329358-001 <br />TLS-450/TLS-450PLUS - Universal Sensor Module (USM), 16 sensor input, P/N 332812-001 <br />TLS4/8601 Series - Universal Sensor Input Output Module (USIOM) (AC ver.), 12 sensor input, P/N 333238-001; (AC ver.), <br />6 sensor input, P/N 333238-002; (DC ver), 12 sensor input, P/N 333238-003; (DC ver.), 6 sensor input, P/N 333238-004 <br />Maximum number of <br />sensors monitored per <br />console <br />TLS -300 Series (8) <br />TLS -350 Series (48) <br />TLS-450/TLS-450 PLUS (32) <br />TLS4/8601 Series (12) <br />Compatible fuels <br />10046 Gasoline and blends with up to 1596 Ethanol; Diesel; Bio -Diesel; Kerosene; Jet fuel; Aviation Gas; Waste Oil; Motor <br />Oil <br />'For additional third party evaluation data see: http://nwglde.org/evals/veeder_root_q.html <br />Miscellaneous <br />• Interstitial sensor riser cap and adapter kit, 2" <br />P/N 312020-928 <br />• Sensor, fiberglass interstitial sensor installation kit <br />P/N 330020-436 <br />• Installation example (see Fig. 12) <br />15 <br />ManholeCord <br />\ <br />grip <br />Riser pipe <br />cap <br />Dual -point <br />hydrostatic <br />sensor <br />Float <br />Brine / <br />level \_ <br />Weatherproof <br />junction box <br />Seakoff <br />Rigid <br />conduit <br />(to console) <br />Reservoir <br />jt�_ I Double-wall <br />tank <br />