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Veeder-Root Q Page 2 of 2 <br />Comparison of TLS -450 with TLS -350 series console showed comparable results when evaluated with <br />representative sensors. <br />Single Stage Hydrostatic Sensor 794380-301: <br />Intended to monitor level of either ethylene glycol or calcium chloride solutions in interstitial or annular space of <br />a double -walled tank. <br />If the brine level in the reservoir drops below the threshold of the sensor, an alarm condition is generated. <br />The evaluation using 30% by weight calcium chloride in water was reevaluated using a different acceptable test <br />protocol. <br />Dual Stage Hydrostatic Sensor 794380-302: <br />Alarm is activated if any significant gain or loss of solution occurs. <br />Dual stage hydrostatic sensor 794380-303 has replaced this sensor and is fully interchangeable with this sensor. <br />Vendor will discontinue production of this sensor as of December 31, 2003. <br />Dual Stage Hydrostatic Sensor 794380-303: <br />If brine level in reservoir drops below the threshold of low-level sensor or if any liquid rises above the threshold <br />of high level sensor, an alarm condition is generated. <br />Alarms are indicated by an audible alarm, displayed message on the console, printed message (if the console is <br />equipped with a printer), and recorded as part of the console "Alarm History Report." <br />Veeder-Root <br />125 Powder Forest Dr. <br />Simsbury, CT 06070-2003 <br />Tel: (860) 651-2700 <br />E-mail: dhalla@veeder.com <br />URL: www.veeder.com/dynamic/index.cfm <br />Evaluator: Carnegie Mellon Research Institute <br />Tel: (412) 268-3495 <br />Dates of Evaluations: 12/07/92, 03/16/98 <br />Evaluator: Ken Wilcox Associates <br />Tel: (816) 443-2494 <br />Dates of Evaluations: 07/08/02, 02/02/03, <br />03/03/08 <br />EM <br />I Home I Vendors: A_- F I Vendors: G_-_____ I Vendors:___- S I Vendors: T -_Z I Method index I <br />los__ ry I <br />Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the <br />performance of the method or equipment. <br />Equipment should be installed and operated in accordance with all applicable laws and regulations. For full details, please refer to <br />our expanded "DISCLAIMER" page. <br />http://www.nwglde.org/evals/veeder—root_q.html 7/28/2009 <br />