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Issue Date: July 27, 2004
Revision Date:
February 16, 2005
Beaudreau Electric, Inc.
SystemOne 522T Monitor
CONTINUOUS INTERSTITIAL TANK SYSTEM MONITORING METHOD
(PRESSURE/VACUUM)
Certification:
Certified as equivalent to European leak detection standard EN 13160-2, Part 2,
as a Class I leak detection system.
Operating Principle:
System uses an integral vacuum pump to continuously maintain a partial vacuum
within the interstitial space of double-walled tanks and double-walled piping.
System is designed to activate a visual and acoustic alarm, and optional turbine
pump shutdown before stored product can escape to the environment.
System is capable of detecting breaches in both the inner and outer walls of
double-walled tanks or double-walled piping.
Alarm Condition:
System alarms when liquid enters the interstitial space or an air leak occurs
where the interstitial vacuum decreases (pressure increases) to the appropriate
“Alarm Activation” vacuum level (see table below).
Applicability:
Underground double-walled tank, connected double-walled piping, and other
connected interstitial spaces where tank and piping contain gasoline, gasohol,
diesel, heating oil #2, kerosene, aviation fuel, or motor oil.
Manufacturer’s
Specifications:
The interstitial volume shall not exceed 8 m3 for tanks and 10 m3 for piping.
The interstitial space shall be rated for the maximum operating vacuum level of
the leak detector as indicated in the following table, regardless of temperature
and groundwater level fluctuations.
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Pressure
Switch Number |
Alarm
Activation Vacuum Level |
Maximum
Operating Vacuum Level |
Restrictions |
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S1-522T-0.9 |
0.9” Hg (0.44 psi) |
6” Hg (2.95 psi) |
Suction line must be
installed at lowest point in the interstitial space. |
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S1-522T-6 |
6” Hg (2.95 psi) |
12” Hg (5.89 psi) |
Depth to interstitial space
cannot exceed 6 ft unless the suction line is installed at lowest point in
the interstitial space. |
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S1-522T-8 |
8” Hg (3.93 psi) |
14” Hg (6.88 psi) |
Depth to interstitial space
cannot exceed 8 ft unless the suction line is installed at lowest point in
the interstitial space. |
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S1-522T-10 |
10” Hg (4.91 psi) |
18” Hg (8.84 psi) |
Depth to interstitial space
cannot exceed 10 ft unless the suction line is installed at lowest point in
the interstitial space. |
Calibration:
Functional and operational safety tests must be performed annually in accordance
with manufacturer’s instructions.
Comments:
Interstitial space is tested continuously.
System is connected to the interstitial space by a suction line and a pressure
measuring line.
Vacuum is generated by an integral pump, and is measured and controlled by a
pressure switch.
This system may not be compatible with all secondarily contained tanks and/or
piping. Always consult with the tank and/or piping manufacturer and the
manufacturer’s applicable recommended installation practices before installing
this system, or damage may be caused to the tank or piping by its use.
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Beaudreau Electric,
Inc. |
Evaluator: Ken Wilcox
Associates |
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183 Providence New London Turnpike |
Tel: (816) 443-2494 |
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Pawcatuck, CT 06379 |
Date of Evaluation:
04/08/04 |
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Tel: (860) 599-3100 |
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E-mail: customerservice@beaudreauelectric.com |
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URL: www.beaudreauelectric.com |
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