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Emco I i I nk Le Competitive and environmental pres- sures are demanding that petroleum marketers closely monitor inventory and integrity of storage tanks. Precise inventory control can mean higher prof- its and less chance of dangerous over- fills or costly leaks. The Emco Wheaton Tank Level Mon. itor is built to be the most precise and trouble-free tank gauge available today. Its state-of-the-art, high tech construc- tion provides automatic 24-hour record keeping and data retrieval at the push of a button. Description of Operation The Emco Wheaton Tank Level Monitor consists of two separate parts: a con- trol console inside the station and a separate float -sensing probe inside the storage tank. A single control console can generate data from eight separate tank probes. Inside the tank, hvo bal- anced magnetic floats are positioned around a hollow square tube. A counter weighted float measures the tank's water level while a second float moni. tors product level. Inside the hollow tube, a micro. processor controlled Hall Effect Switch travels along a rotating lead screw. The s. itch locates the exact center of each flnat•s magnetic flux field, and precisely �fetermiries product and water levels +o ±.015%. All data is then noted on an a`,, -ha nutneric LCD display and/or as a hard copy printout at the control console. Unlike sonic or capacitance monitoring concepts, the Emco Wheaton Tank Level Monitor minimizes error induced by natural variations to specific gravity, temperature and physical distance. Each probe automatically recalibrates itself once every hour to ensure contin- uous accuracy. Strategically positioned sensors compensate for temperature varia- tions, ensuring consistent tank readings. Unlike most other systems, the acd, racy of Tank Level Monitor is virtually ur-affected by changes in product �ontRosition. .Emco,vheaton, Inc. Cham.jerlain Blvd. Conneaut. OH 44030 216/599-8151 Telex: 980436 Buckeye Cout 10%85 Rev. 11/85 Maintenance Tank Level Monitor's rugged design ensures easy, trouble-free installation. Underground conduit connects the gauge to a remote console inside the station. And because of its ingenuous design, routine maintenance of wetted parts is minimal. Most installations do not require on-site calibration; however, field calibration can be easily achieved if installation requires. Each probe is factory calibrated at the time of manu- facture for specific tank installations. Tank level Monitor features unattended automatic 24-hour data memory. A bat- tery backup system ensures memory retention in case of power failure. Con- tinuous monitoring makes early detec- tion of tank leaks possible. The system provides date, time and volume records of: • transport fillings • volume in gallons, inches and tem- perature compensated gallons • product temperature • water level in inches Features Each probe features balanced floats, (water and product) and '"local!y intelli- gent" on -board microprocessor. Standard control console features include: • Overfill Alarm • Theft Alarm • High Water Alarm • 32 Character Alpha Numeric LCD Display • RS232 Communication Interface for phone modem data retrieval from remote personal computers • Special Data Access Code • Printer, or Printer Port For more information about the Emco Wheaton Tank Level Monitor, see your nearest Emco Wheaton electronics dis- tributor, or call the factory direct. Copyright 1985 Emco Wheaton Inc All rights reser ed. Distributed by: •" Monitor -qw Accessories forder separately) Part Number Description 00300-001 Tank Level Monitor Console 00300-002 Tank Level Monitor Console v,. thout Printer 0006-001 G' Probe 0008-001 8' Probe 00010-001 10' Probe Stepper Motor Normal .!' `;•i. I 4" Riser Stainless Steel i Lead Screw g liSquare Tube �. P To Carriage of Tank Magnetic ! � Product Float st i` i Hall Effect i Switch Counterweighted Water Float 1 �tvi�r'I