Laserfiche WebLink
'k-T PEI/RP1200-17 <br /> ATGs monitor the product level in storage tanks and can <br /> S. ELECTRONIC be programmed to perform compliance tests that include <br /> MONITORING 0.2 gph static and dynamic ("continuous")leak tests, and <br /> SYSTEM INSPECTION o.l gph ("precision") tests. cr <br /> AND TESTING 8.2.1 ATG Functionality Test. <br /> 8.2.1.1 General. The ATG must be pro- n <br /> 8.1 General. Electronic underground storage tank grammed using site-specific parameters <br /> (UST) monitoring systems provide a warning or alarm for the UST system to ensure proper opera- <br /> when a leak in the UST system occurs. The monitoring tion. Tester should confirm the required <br /> system and sensors need to be programmed to reflect setup and testing parameters with the <br /> the conditions for each individual site to ensure proper owner/operator. <br /> operation. For the remainder of this section, the term = <br /> "ATG" shall be used to refer to all electronic UST On dual float systems, the second float <br /> monitoring systems whether they have an automatic tank indicates the level of water in the tank. rt <br /> gauge probe or are solely an electronic alarm for sensors 8,2,1.2 Purpose. The purpose of this <br /> installed. "ATG"is a general industry term that is used to test is to: <br /> 62 <br /> identify all electronic tank monitoring equipment. <br /> • determine whether the ATG shows the <br /> Before starting any testing,print out the system configu- correct product level on the console; <br /> ration on the ATG console (if equipped with a printer) • determine whether the ATG shows the <br /> and verify that site setup parameters are correct. Make correct water level on the console; <br /> sure that the sensors are correctly labeled to indicate their <br /> location. • verify that the water alarm is operating <br /> correctly and provides a warning at the <br /> Keep completed compliance tests on file to confirm that programmed set point. <br /> during the test: <br /> 3 <br /> • the system was continuously powered and monitored WARNING: Water Ingress Into tanks con- <br /> for the data collection period; taining ethanol-blended gasoline may not <br /> 0 <br /> • tank probes and leak sensors were functioning properly. be detected using water floats designed <br /> for non-ethanol-blended gasoline. <br /> o <br /> 8.2.1.3 Description of Test. The pro- <br /> cedures in this test are for a probe,properly <br /> e s installed per manufacturer's instructions, <br /> equipped with floats having a range inside <br /> - the tank that extends from the bottom to N <br /> the top of the tank. <br /> The ATG probe is removed from the tank. <br /> The product float and water float positions <br /> are compared with the console readout. Rm <br /> FIGURE 8-1. The indicator lights and the LCD display 3 <br /> on the monitoring console show the status of the UST 8.2.1.4 Preparation. Use this test pro- <br /> system. cedure in conjunction with the monitor- <br /> ing system manufacturer's installation and <br /> maintenance instructions. <br /> 8.2 ATG Probes. ATG probes continuously measure <br /> the product level in a UST using an in-tank probe con- Refer to the tank manufacturer's tank <br /> nected to a console. To properly evaluate its condition, chart for the capacity in gallons, the diam- <br /> the probe needs to be removed from the tank and visually eter and the volume of product that corre- <br /> inspected. sponds to the product level. <br /> 0 pei.org <br />