Veeder-Root Sensor Application Guide 13 Interstitial Sensors for Steel Tanks - High Alcohol The Interstitial Sensor for steel tanks with high alcohol product detects the presence of liquid between the double walls of the tank. Sensor Detection Capabilities - Alarm Conditions • The presence of any liquid at a nominal height of 1 inch in the tank’s interstitial space triggers a Fuel Alarm. • An open sensor triggers a Sensor Out alarm. Operating Capabilities • Operating temperature range: 0 to +70°C (for water), -20 to 70°C (for hydrocarbons). • Storage temperature range: -40 to +70°C. • Sensor dimensions: 2.5” high, 1.5” diameter. Sensor Interface Module • TLS-350 series consoles (except TLS-350J) - Interstitial/Liquid Sensor interface module (P/N 329358-001) accepts up to 8 sensors (a maximum of 64 sensors could be monitored by the console). • TLS-350J console - 3 sensors max. • TLS-300i, PC-300i, TLS-300C, TLS-300J, PC-300C consoles (no interface module required) - 8 sensors max. • ILS-350 console - A Two-Wire module (P/N 329675-001) accepts up to 4 sensors (a maximum of 16 sensors could be monitored by the console). • TLS-450 - USM (P/N 332812-001) accepts up to 16 sensors Console Software Compatibility • TLS-350 series/TLS-300 (Version 1 or later) • ILS-350 (All) • TLS-450 (All) Compatible Fuels • Unleaded gasoline • Unleaded with up to 5% methanol, 85% ethanol, or 15% MTBE • Leaded gasoline • Diesel • Kerosene • Jet fuel • Aviation gasoline Sensor/Cable Length Configurations • Interstitial Sensor with 15-foot cable - Form Number 794380-430 Accessories Riser cap and adaptor kit (2”) - P/N 312020-928 Related Sales Literature Visit our website at www.veeder.com for more information on Veeder-Root products and services. 2'' dia. riser Cord grip Weatherproof junction box with 1/2-inch N.P.T. threads (16 Cubic inch volume minimum) 14'' min. dia. manhole Steel tank sensors\intsenap.eps 1/2'' rigid conduit (to Console) Sensor Leader cable 1/2" to 2" Reducer Sensor Switch must rest on bottom of tank Seal-off Fig. 9 Typical Interstitial Sensor Installation - Steel UST
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