UL Catalog 2024-2025 - Flipbook - Page 325
LS500 AUTOLEARN™
ELECTRONIC LINE
LEAK DETECTION
LS500 AUTO-LEARN® Electronic Line Leak detection (ELLD)
learns the characteristics of each line, eliminating possible
configuration errors and ensures unparalleled leak detection
accuracy. It is an optional feature of the EVOTM 550/5000 and
EVOTM 600/6000 fuel management systems. The LS500
AutoLearn™ ELLD system includes a Statistical Line Leak
Detection (SLLD) feature which can be activated at high
throughput sites that cannot accommodate the prolonged
downtime necessary for static line leak detection testing.
HIGHLIGHTS
• Automatically learns exact pipeline characteristics.
• No pipe type and length programming required,
eliminating possibility of human error.
• Monitors flexible, steel, and/or fiberglass pipelines in any
combination up to certified maximum values.
• Works with submersible pumps generating 25 psi or more.
• Includes the industry’s only Statistical Line Leak
Detection (SLLD).
Dimensions
6¼" × 2" NPT
Operating
temperature
-40° F to 149° F (-40° C to 66° C)
Operating
pressure
0 to 100 psi (0 to 689 kPa)
Sensor port
fitting
2" female NPT
Sensor material
Anodized aluminum body and
stainless steel sensor
Capabilities
• Positive submersible pump shutdown in the event of a leak.
• Intrinsically safe and explosion-proof options.
• Dispenser hook isolation and Turbine Pump Interface (TPI)
pump control options.
• Remote access to line pressure, testing, and
alarm information.
• Prevent All Pump Shutdown feature available for
generator applications
Approvals /
Certifications
FUEL MANAGEMENT
SYSTEMS
• Automatically performs 3.0 gph, 0.2 gph, and 0.1 gph line
tests, as well as other line pressure checks.
SPECIFICATIONS
- Performs a 3.0 gph leak and pressure
test after every dispense cycle or 45
min. Positive shutdown of the affected
turbine(s) on test failure.
- Performs a 0.2 gph monthly and 0.1 gph
annual precision leak test during the
thermally stable periods of dispensing.
Optional positive shutdown of the
affected turbine(s) on test failure.
- Performs pressure up, catch pressure,
and other additional checks. Alarm only
on test failure.
- LSU500: UL, cUL, ATEX, IECEx
- LSU500E: UL, cUL
- Third party certification of leak
detection capabilities
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