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► Positive alarm i-.ric.=lion of a;y liquid in double-wall fibetC '-3 s ► 4.;vstem in2iiCa ► Simile to ► Two -wire conr.-Emonitor. The Veeder-Root Interstitial Sensor for use in Fiber- glass Tanks detects the presence of liquid in the in- terstitial space of a double-wall fiberglass tank. Liq- uid in the annulus could mean a dangerous leak. When liquid is detected, the sensor sends an alarm signal to a TLS -3508. TLS -350, ILS -350, TLS -3001, TLS -300C, TLS -250i or ILS -250 monitor. The monitor's visual and audible built-in alarm indicators immediately tell you where the problem is, so you can quickly take action to help prevent serious safety and environmental problems. ■ I The TLS -350R, TLS -350, ILS -350, TLS -300i, TLS - 300C and ILS -250 systems feature internal alarm relays that can also trigger on-site alarms for even greater warning capability. When connected to a TLS -3508, TLS -350 or TLS -3001 system, the sen- sor alarm triggers a report showing the time and the location of the alarm condition. This information is stored in the TLS -350R, TLS -350, or TLS-250i's alarm history and can be retrieved through the monitor's integral printer or remotely through its data communications interface. The Veeder-Root Interstitial Sensor for fiberglass tanks can be used in the annulus of fiberglass tank with a sensor riser pipe of 4". Only two wires are re- quired to connect the sensor to a TLS or ILS system. Detection Capabilities ► The presence of any liquid in the tank's interstitial space triggers a Fuel Alarm. ► Operating Temperature Range: -20'C to +70'C (Hydrocarbons); 0°C to 7TC (non-freezing Water). ► Storage Temperature Range: -40'C to +75°C. ► Dimensions: 2.13" long. 1.27" wide, 0.58" high. ®TY DESCRIPTION 1 Interstitial Fiberglass Tank Sensor 2 Watertight Cord Grips