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Veeder-Root Sensor Application Guide <br />Single -Point Mini Hydrostatic Sensor for Double Wall Sumps <br />The Single -Point Mini Hydrostatic sensor accurately detects fluid level change in the interstice reservoir of a dou- <br />ble-wall sump. If a leak occurs in the sump interstice, the brine seeps out of the reservoir triggering a low level <br />alarm. An open sensor triggers a Sensor Out alarm. <br />Table 16. Mini Hydrostatic Reservoir Sensor Features and Console Compatibility <br />Item <br />Description <br />Form number <br />794380-304 (8 foot [2.4m] cable) <br />Operating principle <br />Float switch <br />Product activation height' <br />0.793" (2cm) <br />Reservoir solutions <br />Up to 5016 ethylene glycol in water; up to 5046 propylene glycol in water; salt brine solution of up to 3046 CaCI <br />Operating temperature <br />-13 to +122°F (-25 to +50°C) <br />Dimensions <br />2.5" (6.4cm) high, 1.5" (3.8cm) dia. <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 1546 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_za.html <br />Miscellaneous <br />• Installation example (see Fig. 13) <br />i' <br />Concrete <br />pad` <br />Double-wall ` <br />sump �, Sensor in interstitial fluid reservoir <br />Coupling and h <br />seals as regwred <br />for conduit egress <br />(customer supplied) <br />\Seal -off and junction box <br />R(customer supplied) <br />igid conduit to <br />TLS console use tie wraps to keep <br />cable clear of sump <br />components and lid <br />Tank i way <br />16 <br />