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CONNECTED, SECURE. COMPLIANT, Why DPLLD for Detecting Line Leaks? The Veeder-Root Digital Pressurized Line Leak Detection (DPLLD) system is designed to meet your everyday compliance needs in a variety of applications. Our patented technology performs precision line leak testing at full pump pressure for 0.1 Gallons Per Hour (GPH)/0.38 Liters Per Hour (LPN) and 0.2 GPH/0.76 LPH, and a pressure decay test to meet the U.S. Environmental Protection Agency (EPA) 3 0 GPH/11.4 LPH test requirements. DPLLD offers flexible testing and digital reporting options, helping to detect catastrophic leaks. When paired with a TLS-450PLUS Automatic Tank Gauge (ATG), customers can monitor up to 1,178 gallons/4,459 liters of fuel line volume. 'i t ;i°9@f,Ip� �{��P l $7�iTgii} "y '� r � �.. •� � �Y1t i8o> � i� r VY If the pressure is out of normal range, the TLS-450PLUS will record a failing result and generate an audible and visual alarm for the store operator. SYSTEM FEATURES Equipment Design • Pressure sensor is installed easily without breaking piping or adding anew sump • Stainless steel construction meets the challenges of a highly corrosive environment • Test lines at full pressure for quick and accurate results, without restricting fuel flow rate • Not impacted by thermal contraction of fuel in the line due to changes in temperature System Functionality Monitors line pressure during dispensing activity to ensure a catastrophic leak is not occurring during a dispense - If a leak is detected at a pre-set pressure threshold, the system will shutoff power to the Submersible Turbine Pump (STP) to minimize environmental damage and help prevent a public safety issue Conducts test once all dispensing is completed to ensure the integrity of the line Test can be manually performed to reset alarms Built-in calibration verification to notify the site operator when the pressure transducer is not operating properly Auto-Confirm function, when enabled, runs a second line leak test, if an initial test failure occurs, to verify and reduce false alarms due to mechanical issues that may be occurring in other parts of the fueling system Provides two alarm shutdown options when failure occurs 1. Standard Dispenser Shutdown (Alarm and Shutdown) 2. Optional No Shutdown (Alarm Only)