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California Edition:September 1997 <br /> Veeder-Root <br /> TLS Series 300 /300i /30OPC/350/350 PC / 35OR/ 35ORPC Monitoring Systems <br /> with CSLD versions 8473 (Mag 1) and 8493 <br /> (Magnetostrictive Probes) <br /> CONTINUOUS IN-TANK LEAK DETECTION SYSTEM <br /> Certification: Leak rate of 0.2 gph with P3=100%and P_A=0%. <br /> Leak Threshold: 0.16 gph for single tanks at 99%operating mode. <br /> 0.15 gph for manifold tank systems at 99%operating mode. <br /> A leak is declared and a message is printed for the operator if the output of the measurement system <br /> equals or exceeds this threshold. <br /> Applicability: Gasoline,diesel,aviation fuel,waste oil,and solvents. <br /> Tank Capacity: Maximum of 38,170 gallons for single tanks and for all tanks manifolded together. <br /> Contact manufacturer for tank system applications if total tank capacity exceeds 30,000 gallons. <br /> Throughput: Monthly maximum of 221,890 gallons. <br /> Waiting Time: Minimum of 3 hours between delivery and testing. <br /> Temperature: Average for product is determined by a minimum of 5 thermistors. <br /> Water Sensor: Must be used to detect water ingress. <br /> Minimum detectable water level in the tank is 0.54 inch. <br /> Minimum detectable change in water level is 0.027 inch. <br /> Calibration: Thermistors and probe must be checked annually and calibrated if necessary in accordance with <br /> manufacturer's instructions. <br /> System set-up menu must be checked to verify that the 99%operating mode option has been selected. <br /> Comments: During installation,the set-up menu provides a choice between a 99%or a 95%operating mode. <br /> This evaluation covers only the 99%operating mode. At this time,there is no evaluation covering <br /> the 95% mode. <br /> System reports a quantitative result of pass or fail. <br /> Evaluated using both single and manifold tank systems. <br /> System collects data at naturally occurring product levels without interfering with normal tank operation, <br /> and discards data from unstable periods wnen system performs test. <br /> Data can be collected at any level above 12 inches of product. <br /> Leak rates above 1 gph are either reported as"fail"or as"no idle." <br /> For valid monthly testing,a conclusive test report must be produced for each tank every month. Systems <br /> warns the operator if there are no"passing"tests completed during the month. For very active tanks, a tank <br /> shut down may become necessary in order for the system to collect enough quiet-time data for a test. <br /> Test procedure used was Midwest Research Institute's"Evaluation of Continuous In-Tank Leak <br /> Detection Systems,"April 17, 1995. <br /> Constant and variable leaks were mathematically induced into tight tank test records which were <br /> collected by systems installed at various active tank sites. <br /> The data base for evaluation of the system included sites with vapor recovery and blending dispensers. <br /> Tanks used in this evaluation contained gasoline and diesel. <br /> Veeder-Root Evaluator: Midwest Research Institute <br /> 125 Powder Forest Dr. Tel: (811 6)753-7600 <br /> Simsbury, CT 06070-2003 <br /> Tel: (203)651-2700 Date of Evaluation:06/10/96 <br /> 289 <br /> Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of <br /> the method or equipment. =-,uipment should be installed and operated in accordance with all applicable laws and regulations. <br />