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PEI/ RPI 200 - 17 <br /> ATGs monitor the product level in storage tanks and can <br /> 8 . ELECTRONIC be programmed to perform compliance tests that include <br /> MONITORING 0 .2 gph static and dynamic ("continuous") leak tests, and <br /> SYSTEM INSPECTION 0 . 1 gph ("precision") tests . <br /> AND TESTING 8.2.1 ATG Functionality Test. <br /> 8. 2 .1. 1 General . The ATG must be pro- <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. <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 /> 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 <br /> sure that the sensors are correctly labeled to indicate their correct water level on the console; <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 /> • 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 /> • tank probes and leak sensors were functioning properly. be detected using water floats designed <br /> for non-ethanol-blended gasoline . <br /> 8. 2 . 1.3 Description of Test. The pro- <br /> �n:CTDo�s nom_ cedures in this test are for a probe, properly <br /> installed per manufacturer ' s instructions, <br /> v:yr ^s equipped with floats having a range inside <br /> a 9the tank that extends from the bottom to <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. <br /> FIGURE 8-1 . The indicator lights and the LCD display <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 in4ank 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 />