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Issue Date: November
22, 1995
Revision Date: April 8, 2011
Veeder-Root
TLS-350 Series, TLS-450 Series, Red Jacket ProMax
with
Interstitial
Liquid Sensor 794380-341,
Dispenser Pan Sensor 794380-320,
Discriminating
Containment Sump Sensor 794380-350,
Discriminating Fibretrench Sensor
794380-360, 361, 362
INTERSTITIAL
DETECTOR (LIQUID-PHASE)
Detector:
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Output type:
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qualitative |
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Sampling
frequency:
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continuous
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Operating principle:
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capacitance change/ultrasonic (794380-341),
electrical conductivity/ultrasonic (794380-320,
350, 360, 361, 362)
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Test Results:
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unleaded
gasoline |
diesel**
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water
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Interstitial Liquid Sensor 794380-341*
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|
|
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Response time (min) |
<1 |
<1 |
<1 |
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Recovery time (min) |
<1 |
<1 |
<1 |
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Product activation height (cm) |
<0.125 |
<0.125 |
<0.125 |
|
Dispenser Pan Sensor
794380-320,
Containment Sump Sensor
794380-350,
Discriminating
Fibertrench
Sensors 794380-360, 361, 362***
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|
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high**** |
low**** |
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Response time (min) |
6.59 |
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5.00 |
4.60 |
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Recovery time (min) |
17.17 |
|
<1 |
<1 |
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Product activation height (cm) |
3.40 |
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20.3 |
2.45 |
* Interstitial Liquid Sensor 794380-341 was replaced by Discriminating
Interstitial Sensor 794380-343 and is not supported by TLS-450 series console.
* Evaluations determined 794380-320, 794380-341, and
794380-350 sensors' responses to the liquids shown above and those indicated in
the following section. 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.
***
Discriminating Fibertrench Sensors 794380-360, 361, 362 were replaced by
sensors 794380-320 and 794380-350 and are not supported by TLS-450.
**** The "high" and "low" refer to high and low level alarm points of hydrostatic
sensors.
Specificity Results (in addition to above for
794380-341):
This sensor will respond to any liquid after its threshold is exceeded.
Specificity Results (in addition to above for
794380-320, 350):
Activated:
diesel (at liquid height of 4.75 cm), synthetic fuel (at 2.58
cm), heating oil #2 (at 4.67 cm).
Comments:
Interstitial Liquid Sensor 794380-341 was listed as a discriminating sensor in
the 7th edition of this list. However, the vendor has since indicated that the
sensor is sometimes unable to determine if the liquid is product or water and
the sensor was re-evaluated as a non-discriminating liquid sensor. Therefore,
all alarms initiated by any new or existing Interstitial Liquid Sensor
794380-341 should be treated as a liquid alarm indicating product and/or water.
This may make it necessary to reprogram previously installed systems.
For
Discriminating Fibertrench Sensor 794380-360, lowest water level detection and
alarm activation is set at 23 inches high and highest water alarm is set at 25
inches high; for 794380-361, values are 13 inches and 16 inches; for 794380-362,
values are 3 inches and 12 inches, (based on manufacturer's specifications).
Sensors are reusable.
Comparison of TLS-450 with TLS-350 series console showed comparable results when
evaluated with representative sensors.
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Veeder-Root |
Evaluator: Carnegie Mellon Research Institute |
|
125
Powder Forest Dr. |
Tel:
(412) 268-3495 |
|
Simsbury,
CT 06070-2003 |
Dates of
Evaluations: 06/30/93, 05/26/93, 06/30/97 |
|
Tel:
(860) 651-2700 |
Evaluator: Ken Wilcox Associates |
|
E-mail:
info@veeder.com |
Tel:
(816) 443-2494 |
|
URL:
www.veeder.com |
Dates of
Evaluations: 05/26/93, 11/01/00, 03/03/08 |
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