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PEMP120012 ATGs are programmed to monitor the product level in warnings or alarms. In the event of any storage tanks and can be programmed to perform com- such warnings or alarms , notify the appro- pliance tests that can include 0.2 gph static and dynamic priate person before continuing the test. ("continuous") leak tests, and 0. 1 gph ("precision") tests . I ; Where possible print out the system setup 8 .2 .1 ATG Functionality Test , and any alarm histories from the console . Save the printout for facility records or 8 . 2 . 1. 1 General , The ATG must bepro- make an electronic copy. grammed using site-specific parameters for the UST system to ensure proper opera- 8 .2 . 1 . 5 Test Equipment. Test equip- tion. On dual float systems , the second ment shall include: float indicates the level of water in the tools for the removal of the ATG probe tank. and sensors , 8.2. 1. 2 Purpose. The purpose of this tape measure or gauge stick; test is to : • • determine whether the ATG shows the water-finding paste, correct product level on the console, 8. 2 . 1. 6 Test Procedure. • determine whether the ATG shows the 1. Measure the product and water level correct water level on the console; in the tank and compare to the console • verify that the water alarm is operating readings to confirm ATG accuracy. If correctly and provides a warning at the the readings do not agree, contact theappropriate person. programmed set point. 2. Remove the ATG probe cap and discon- WARNING: Water ingress Into tanks con- nect the cable from the ATG, taining ethanol-blended gasoline may not 3 . Remove the ATG probe from the tank . be detected using water floats designed Use care to ensure that the floats on the for non-ethanol-blended gasoline , stem do not catch on the bottom of the riser during removal. 8 . 2 . 1.3 Description of Test. The pro- 4. Inspect the probe. The floats must move cedures in this test are for a probe, properly freely on the stem without binding. If installed per manufacturer 's instructions, any parts are damaged or missing, con- equipped with floats having a range inside tact the appropriate person, the tank that extends from the bottom to 5. Reconnect the probe cable. the top of the tank. 6. Set the fuel float in the middle of the The ATG probe is removed from the tank. probe and verify that it is showing the The product float and water float positions correct inch reading on the console. are compared with the console readout. 7. Slowly move the fuel float up the probe 8. 2 . 1.4 Preparation. Use this test pro- until the high product alarm is triggered cedure in conjunction with the monitor- on the console. If the system does not ing system manufacturer's installation and alarm at the pre-set level, contact the maintenance instructions . appropriate person. Refer to the tank manufacturers tank S. Measure the distance from the bot- chart for the capacity in 1 tom of the probe to the fuel float when p ty gallons, the diam- eter and the volume of product that cozre- the float first triggers the high product alarm. sponds to the product level . Verify that the console has no active or 9 . Clear the alarm conditions . , recurring history of leak detection-related pei .org