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Issue Date: September 1,
2004
Veeder-Root
Secondary
Containment Leak Detection (SCLD)
TLS-350/ProMax/EMC Console with Vacuum Sensors 857280-100,
200, 30x, or Assembly 332175-001
PRESSURE/VACUUM
INTERSTITIAL MONITOR
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Certification
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Certified
as equivalent to European leak detection standard EN-13160-2
Part 2, as a Class I leak detection system.
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Operating
Principle
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System
uses vacuum generated by the turbine pump to continuously
maintain a partial vacuum within the interstitial space
of double-walled tanks, double-walled piping, and double-walled
containment sumps.
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, double-walled
piping, and double-walled containment sumps.
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Alarm
Condition
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System alarms when a liquid
or air leak occurs which causes the interstitial vacuum
to decrease (pressure to increase) and the system is unable
to maintain minimum vacuum. System will also alarm if
liquid is detected in the interstitial space, or if the
vacuum level in the interstitial space decreases at a
rate exceeding 85±15 liters/hour.
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Applicability
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Underground double-walled
tank, connected double-walled piping, and other connected
interstitial spaces storing gasoline, gasohol, diesel,
heating oil #2, kerosene, aviation fuel, motor oil, water.
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Manufacturer's
Specifications
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Alarm will activate when
interstitial vacuum decreases to 1.7 psi vacuum (3.5"Hg).
Default maximum vacuum level (pump-off pressure) is 8
psi vacuum (16.3" Hg), but can be set as low as
4 psi (8.2" Hg) if the monitored system requires
that a lower level of vacuum be maintained.
The interstitial space shall be rated for the operating
vacuum of the leak detector, regardless of temperature
and groundwater level fluctuations.
Volume of monitored interstitial space must not exceed
8 m3 for tanks and 10 m3 for piping.
When monitoring double-walled tanks, a liquid sensor must
be located at lowest point of interstitial space.
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Calibration
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Functional
and operational safety tests should be performed in accordance
with manufacturer's instructions..
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Comments
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Interstitial space is
tested continuously.
System is connected to the interstitial space by a single
vacuum line.
Vacuum is generated by the turbine pump, and is measured
and controlled by a vacuum sensor.
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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Veeder-Root
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Evaluator: Ken Wilcox Associates
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125
Powder Forest Dr.
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Tel: (816) 443-2494
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Simsbury,
CT 06070-2003
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Dates
of Evaluation: 06/09/04
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Tel:
860-651-2700
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E-mail:
dhalla@veeder.com
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URL:
www.veeder.com/dynamic/index.cfm
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