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Issue Date: December
7, 2001
Revision Date: April 8, 2011
Veeder-Root
TLS-350, 350R Series, TLS-450
Series, Red Jacket
ProMax with
Discriminating
Interstitial Sensor 794380-343, Micro Sensor 794380-344
INTERSTITIAL DETECTOR (LIQUID-PHASE)
Detector:
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Output type: |
qualitative, discriminating (794380-343), non-discriminating (794380-344) |
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Sampling
frequency: |
continuous |
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Operating
principle: |
optical sensor and conductivity
(794380-343), optical sensor (794380-344) |
Test Results:
|
Discriminating Interstitial
Sensor 794380-343 |
unleaded gasoline |
diesel* |
water |
|
Detection time (min) |
<1 |
<1 |
<1 |
|
Fall
time (min) |
<1 |
<1 |
<1 |
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Lower
detection limit (in) |
<0.1 |
<0.1 |
<0.1 |
|
Micro
Sensor 794380-344** |
unleaded gasoline |
diesel* |
water |
E85 |
Used Oil |
|
Detection time (min) |
<1 |
<1 |
<1 |
<1 |
<1 |
|
Fall
time (min) |
<1 |
<1 |
<1 |
<1 |
<1 |
|
Lower
detection limit (in) |
<0.1 |
<0.1 |
<0.1 |
<0.1 |
<0.125 |
*Evaluations
determined these sensors' responses to the liquids shown above. Biodiesel
blends B6-B20 meeting ASTM D7467 and biodiesel B100 meeting ASTM D6751 would
also produce an alarm if the sensor threshold is exceeded. Responses to these
fuels were not determined, but would be expected to be very similar to the
diesel responses.
**This sensor is identified as an interstitial sensor, but will function properly
in other containment areas such as containment sumps, contained risers and other
contained enclosures. This sensor must be installed at the lowest point of
the containment enclosure to insure early detection of liquids.
Specificity Results:
Evaluator
claims both 794380-343 and 794380-344 sensors will respond in any liquid after
the sensor threshold is exceeded.
Sensor 794380-343 is designed to discriminate between product and water.
Separate alarms are designed to be triggered for product and water.
Manufacturer’s Specifications:
Sensors
794380-343 and 794380-344 can be removed, cleaned, and reinstalled, for periodic
testing, if an alarm is triggered or if service is necessary.
Sensor 794380-343 has no moving parts.
Sensor 794380-344 is designed for use in contained risers and the interstitial
space of double-wall steel tanks. When product or an open sensor (referred to
as “Sensor Out”) is detected, an audible alarm is actuated, a message is
displayed on the TLS-350 or TLS-350R console, and a printed message is generated
if the console is equipped with a printer. The alarms are also recorded as part
of the TLS-350 or TLS-350R “Alarm History Report”.
Comparison of TLS-450 with TLS-350 series console showed comparable results when
evaluated with representative sensors.
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Veeder-Root |
Evaluator: Ken Wilcox Associates |
|
125
Powder Forest Dr. |
Tel:
(816) 443-2494 |
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Simsbury, CT 06070-2003 |
Dates of
Evaluations: 05/10/01, 02/02/06, 03/03/08, 08/05/10 |
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Tel:
(860) 651-2700 |
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E-mail:
info@veeder.com |
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URL:
www.veeder.com |
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