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I <br />L <br />d <br />e <br />L <br />r] <br />u <br />1� <br />i <br />0 <br />M a ft 1 <br />The Vacuum Senor Kits are available in three models: one for monitoring double -walled <br />piping and sump interstices, one for monitoring double -walled steel tank interstices (see <br />example installation drawing in section 4.0 of this MSR) and one for double -walled <br />fiberglass tanks. These kits differ in the number of vacuum sensors and configuration <br />of associated liquid sensors. An inline mounted liquid sensor is used for Vacuum <br />Sensors monitoring piping and sumps. An appropriate tank liquid sensor (to be <br />installed in the secondary space at the bottom of the tank) is provided with one of the <br />Vacuum Sensors in the steel and fiberglass tank kits to monitor the tank interstice. <br />The 3`d Party Certification is attached. UL approved, National Work Group and LG113 <br />listed. <br />3.0 Launch Schedule <br />As of the date of this MSR, the Vacuum Sensing System will be available for shipment. <br />Due to order backlog, normal shipping lead times may not begin until late 2004. <br />MSR 09-04-A 2 <br />