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HT System Operating h.�cructions ILS -350 UST Monitoring System SECTION 1. INTRODUCTION IMPORTANT: This product will be operated near the highly combustible environment of an underground fuel storage tank. Leaking underground tanks can create serious environ- mental and health hazards. It is your responsibility to operate this product according to the instructions found in this manual. L This manual describes operating procedures for the ILS -350 UST Monitoring System designed and manufac- tured by the Veeder-Root Company, 125 Powder Forest Drive, Simsbury CT 06070-2003. 2. When a vertical bar' appears adjacent to text or illustrations, information has been added or revised in this printing. 3. The instructions in this manual describe the procedures to operate all of the monitoring and control functions that can be installed in an ILS -350. The exact functions installed in the system you are operating were selected according to the monitoring requirements of your site. They can vary from system to system. IF SOME FUNCTIONS WERE NOT INSTALLED IN THIS SYSTEM, it will skip those functions during the operating Process. In order to correctly and effectively operate this system, YOU MUST KNOW what leak detection, alarm and data communications functions have been installed. SECTION 2. PRODUCT DESCRIPTION The ILS -350 UST Monitoring System provides interstitial, sump liquid sensing and vapor sensing capabilities in up to 16 sensor locations at a site. Designed for simple operation, the ILS -350 steps the operator through each run mode feature with concise display commands. 2 A. MONITOR FEATURES Operation of the system is performed using buttons and the display on the ILS -350 monitor front panel (see Figure 1, "ILS -350 Front Panel Features"). Dependingon the features Your system is equipped with, you can review the system status information, review the status of all installed sensors, test all relays and reset a corrected sensor condition. The ILS -350 monitor includes the following features (see Figure 1, "ILS -350 Front Panel Features"): • A two-line, 24 -character -per -line liquid crystal display. • A six -button keyboard with control functions for program- ming, operating and reporting. • Three lamps to provide power -on, warning and alarm indications. • An audible warning and alarm indicator. I. Monitoring Functions. Monitoring functions, such as interstitial leak sensing and vapor sensing,'are provided by interstitial sensors located between the walls of double-wall tanks, sensors in the sumps of double-wall piping systems, and sensors in vapor monitor- ing wells. The system you are operating may have a combination of these functions installed. 2. Output Functions Output functions are provided by relays installed in the system. They are able to control external alarm devices when an alarm condition is sensed by any of the sensors installed in the ILS -350. Relays may also be used to control sumps. F ORTANT: Read the WARNING found on page 1 of manual regarding the use of this product! B. SENSORS An ILS -350 system can incorporate sensors that detect liquids in interstitial spaces of double-wall tanks, and piping sumps, as well as sensors that can detect hydrocarbon vapors in dry monitoring wells and hydrocarbons flowing on top of the water table in wet monitoring wells.