Issue Date: October 19, 2007
Revision Date: June 27, 2011
Xerxes Corp.
Xerxes Trucheck Continuous Leak Detection System
Continuous Interstitial Monitoring Method (Liquid Filled)
| Certification | Certified as a continuous, brine-filled interstitial space leak detection system for tanks up to 30,000 gallons manufactured by Xerxes, Corp. |
|---|---|
| Operating Principle | A Fluid reservoir is attached to the top of the tank and is open to the interstice through the bottom and is filled with a brine solution. The reservoir is equipped with an electronic probe to provide for low level and high level alarms. |
| Alarm Conditions | The brine level is set at 5 inches above the low level alarm. The low level alarm will sound for reservoirs of 18, 24 or 36 inches diameter in 5, 9 and 19 days respectively. Under average conditions, leaks of 0.009, 0.015 or 0.032 gal/hr will trigger the low level alarm in 30 days for the same three reservoirs, respectively. If the brine level is originally higher than 5 inches above the low-level alarm point, the alarm time will be proportionally longer and the leak detection value in thirty days will be proportionally longer. |
| Applicability | Xerxes Corp. underground double-walled storage tanks as specified above containing gasoline, gasohol, diesel, heating oil #2, kerosene, aviation fuel, or motor oil. Other liquids may be stored after consultation with the manufacturer. |
| Manufacturer's Specifications | Fluid in reservoir must be filled to proper level. |
| Comments | The method must be used with a dual-point sensor system that will properly fit into the reservoir, is compatible with the interstitial liquid, and is on the NWGLDE list. |
- Xerxes Corp.
7901 Xerxes Ave.
Minneapolis, MN 55431
Tel: (952) 887-1890 - Evaluator: Robert Plunkett, Ph.D.
Tel: (612) 338-0945
Date of Evaluation: 01/07/93, 03/28/05
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