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Issue Date: November 22, 1995
Revision Date: October 18, 2002
OPW Fuel Management Systems
(originally listed as Petro Vend, Inc.)
Petrosentry
IV, Petrosentry VIII, SiteSentinel with
Liquid Sensor, Universal Sump Sensor, Universal Reservoir Sensor
INTERSTITIAL DETECTOR (LIQUID-PHASE)
Detector:
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Output
type: |
qualitative |
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Sampling
frequency: |
continuous |
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Operating principle: |
thermal conductivity (Liquid Sensor),
float switch (Universal Sump Sensor, Universal Reservoir Sensor) |
Test Results:
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|
unleaded
gasoline
|
|
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Liquid Sensor
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|
|
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Response
time (min)
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0.51
|
|
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Recovery
time (min)
|
<1
|
|
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Product
activation height (cm)
|
0.35
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|
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Lower
detection limit (cm)
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0.76
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|
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Universal Sump Sensor
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|
|
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Response
time (min)
|
8.32
|
|
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Recovery
time (min)
|
<1
|
|
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Product
activation height (cm)
|
3.37
|
|
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Lower
detection limit (cm)
|
3.97
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|
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Universal Reservoir Sensor
|
50%
by weight
ethylene
glycol in water
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30%
by weight
calcium
chloride in water
|
|
|
high*
|
low*
|
high
|
low
|
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Response
time (min)
|
19.62
|
16.86
|
17.77
|
15.91
|
|
Recovery
time (min)
|
<1
|
<1
|
<1
|
<1
|
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Product
activation height (cm)
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20.9
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5.90
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20.5
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5.95
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*The
"high" and "low" refer to high and low level alarm points of
hydrostatic sensors.
Specificity
Results (in addition to above for Liquid Sensor and Universal Sump Sensor):
Activated:
diesel, synthetic gasoline, heating oil #2, water.
Comments:
Universal
Reservoir Sensor is intended to monitor level of either ethylene glycol or
calcium chloride solutions in the interstitial or annular space of a
double-walled tank.
Universal
Reservoir Sensor activates an alarm if any significant gain or loss of solution
occurs.
Sensors
are reusable.
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OPW Fuel Management Systems
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Evaluator:
Carnegie Mellon Research Institute
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6900 Santa Fe Dr.
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Tel: (412) 268-3495
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Hodgkins, IL 60525-9909
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Date of Evaluation:
10/15/92
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Tel: (708) 485-4200
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E-Mail:
info@opwfms.com |
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URL: www.opwfms.com |
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