Veeder-Root Sensor Application Guide 11 Interstitial Sensors for Fiberglass Tanks The interstitial sensor for fiberglass tanks detects the presence of liquid between the double walls of the tank. Sensor Detection Capabilities - Alarm Conditions • The presence of any liquid 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: 2.2” length, 1.3” width, 0.6” thickness. 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, 15% ethanol, or 15% MTBE • Leaded gasoline • Diesel • Kerosene • Jet fuel • Aviation gasoline Sensor/Cable Length Configurations Interstitial sensors for various diameter Fiberglass tanks: • 4 to 5-foot dia. tank - Form Number 794390-401 • 5.4 to 7-foot dia. tank - Form Number 794390-404 • 7.6 to 9-foot dia. tank - Form Number 794390-407 • 10 to 12-foot dia. tank - Form Number 794390-409 See Fig. 6 for a typical installation diagram. Related Sales Literature Visit our website at www.veeder.com for more information on Veeder-Root products and services.
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