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Issue Date: April 18, 1997
Revision Date: August 18, 2010
Beaudreau
Electric, Inc.
Model DFR-1 Liquid Level Switch, Models EOS100, 510 and 516 Discriminating Sensors
with Models 500 and 500C Controllers, Model 522 Remote Monitoring System,
Model 522T Monitoring System,
and ESite Monitoring System
INTERSTITIAL DETECTOR (LIQUID-PHASE)
Detector:
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Output type: |
qualitative, discriminating |
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Sampling frequency: |
continuous |
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Operating principle: |
float switch (Model DFR-1), refractive index of liquids (Model
EOS100), polymer strip, hydrocarbon-only (Model 510), optical sensor and
conductivity (Model 516) |
Test Results:
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Model EOS100 Discriminating Sensor (5 sensing
levels) |
unleaded
gasoline |
diesel |
water |
brine |
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Detection time (sec) |
<1 |
<1 |
<1 |
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Fall time |
manual reset |
manual reset |
automatic reset when water level drops |
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Precision (in) |
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Level 1 (low level switch) |
0.005 |
0.002 |
0.003 |
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Level 2 |
0.006 |
0.002 |
not evaluated |
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Level 3 |
0.004 |
0.002 |
not evaluated |
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Level 4 |
0.004 |
0.002 |
not evaluated |
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Level 5 (high level switch) |
0.004 |
0.002 |
0.004 |
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Lower detection limit (in) |
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Level 1 (low level switch) |
0.536 |
0.551 |
0.550 |
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Level 2 |
1.266 |
1.226 |
not evaluated |
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Level 3 |
2.097 |
2.074 |
not evaluated |
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Level 4 |
2.858 |
2.895 |
not evaluated |
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Level 5 (high level switch)
|
3.569 |
3.57 |
3.596 |
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Model 510 Discriminating Sensor |
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Detection time |
5-10 min |
1-2 hr |
<1 sec |
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Fall time (sec) |
Replaceable |
Replaceable |
<1 |
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Precision - standard deviation (in) |
<0.0001 |
<0.0001 |
0.0045 |
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Lower detection limit (in)
|
0.058 |
0.058 |
11.566 |
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Model 516 Discriminating Sensor |
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|
|
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Detection time (sec) |
<1 |
<1 |
<1 |
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Fall time |
<1 |
<1 |
<1 |
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Precision - standard deviation (in) |
0.0038 |
0.0032 |
0.0020 |
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Lower detection limit (in)
|
0.340 |
0.369 |
0.389 |
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Model DFR-1 Liquid Level Switch |
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Detection time (sec)
low level switch |
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<1
Reset is Automatic |
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Reset time (sec) low and high |
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<1 |
Detection time (sec)
high level switch |
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|
|
<1 |
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Precision- standard deviation (in) low and high level |
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|
0.004 |
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Mean detection limit (in) |
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2.657 Low
11.777 High |
Specificity Results:
Manufacturer and evaluator claim sensors will
respond to any liquid. No additional materials tested.
Manufacturer’s Specifications:
Manufacturer states that systems require no
calibration.
Annual functional test required.
Model 510 Discriminating Sensor and Model DFR-1 Liquid Level Switch are designed to work with Beaudreau Models 500, and 500C Controllers.
Model 516 Discriminating Sensor is designed to work with Beaudreau Models 500,
500C, and 512 Controllers.
Model EOS100 Discriminating Sensor is designed to work with Beaudreau Model 522
Remote Monitoring system, Model 522T Monitoring System,
and ESite Monitoring System.
Comments:
Model
DFR-1 Liquid Level Switch, and
Models EOS100 and 516 Discriminating Sensors are reusable.
The polymer strip used in Model 510 Discriminating Sensor is designed to be
replaceable if desired.
This design allows the end-user to immediately reuse the sensor by replacing the
polymer strip, instead of having to wait 24 to 48 hours for the polymer strip
to dry out.
Replacement lowers the risk of false alarms caused by the use of partially dried
out polymer strips.
Model 516 Discriminating Sensor is designed to be placed in a sensor well in
bottom of a containment sump with at least one other sensor mounted higher as a
high-water cut-off.
Both Models 510 and 516 Discriminating Sensors were not evaluated for the
ability to detect a layer of hydrocarbon on water.
Model
EOS100 has 5 sensing points that can sense fuel or water over a 3.5-inch range.
The highest sensor (level 5) acts as a high level switch.
If water is detected at level 5, a fuel alarm will be triggered instead of a
water alarm.
If fuel is detected at any of the levels, a fuel alarm will be triggered.
The
output from the system can be used to shut down the turbines when fuel is
present or when water reaches the high level switch.
Model 522 Remote Monitoring System:
Evaluation indicates that when threshold level of
Models EOS100, 510 and 516 Discriminating Sensors
was reached, Model 522 Remote Monitoring System produced (1) an audible and
visual alarm and (2) an output signal that was recognized by a Veeder-Root
TLS-350 Monitoring System.
The TLS-350 Monitoring System produced an alarm within 10 seconds, and displayed
and printed a notice of alarm and alarm time.
Manufacturer states that the output signal produced by Model 522 Remote
Monitoring System can be recognized by other monitoring systems designed to
detect this output signal.
Model 522 Remote Monitoring System was evaluated only using the Veeder-Root
TLS-350 Monitoring System.
Model 522T Monitoring System:
Evaluation indicates that when threshold level of
Models EOS100, 510 and 516 Discriminating Sensors
was reached, Model 522T Monitoring System will generate a visual (LCD readout
and LED “alarm” lamp) and audible alarm and also open up to three normally
closed relay contacts.
By using a Model 522R Relay, the system can use these normally closed relay
contacts to control power to turbine pumps.
Alternatively, the normally closed relay contacts can be used to send fuel alarm
information to a Veeder-Root TLS-350 for both positive shutdown and additional
alarm notification (such as a printout showing the date and time that a release
has occurred).
ESite
Monitoring System:
Uses an array of EOS-100 fiber optic
discriminating sensors to provide for continuous monitoring of interstitial
spaces or sumps. Detection of liquid triggers audible and visual alarms on the
ESite user interface screen. Alarm information can also be transmitted to
remote locations through network or internet connections. The ESite Monitoring
System provides for turbine pump and dispenser shutdown via the ESite output
controller in the event any amount of fuel is detected, or water level reaches a
height of 3.5 inches on the sensor.
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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: 07/20/94 |
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Tel: (860)
599-3100 |
(Revised 03/02/01, 09/23/02, 12/23/02, 08/28/03, 12/01/03, 05/23/05, 05/23/07) |
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E-mail: customerservice@beaudreauelectric.com |
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URL: www.beaudreauelectric.com |
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