Franklin Fueling Systems T5 Series Fuel Management System Programming Guide - Manual (Page 43)

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TS-LS500 Auto Learn Line Leak Testing
Overview
A 0.2 gph and a 0.1 gph test line leak tests can be started
from the console. Some jurisdictions recommend that a
0.1 gph annual precision line leak test be run yearly.
The 0.2 gph test runs automatically on a daily basis.
The coarse 3 gph line test runs automatically after every
dispense. State and local regulations may require more
frequent tests and inspections. Make sure your site
personnel are aware of all of the issues and requirements
comply with these regulations.
Caution
It is the tank owner’s obligation to
comply with the procedures and the
reporting requirements of federal,
state and local regulations. You are
legally bound to follow these explicitly.
Where they conflict with this manual,
follow the regulations.
Line Leak Test Requirements
• Create adequate quiet time – Prevent and stop all
dispensing, on the line to be tested, before and
during a test (bag or tape poly over dispenser and
dispenser lever).
• GPH precision tests normally need 4 hours of quiet
time (where no dispensing occurs) before the test is
started. Usually the test takes 13 minutes to complete.
• 0.2 GPH monthly tests normally need 13 minutes to 4
hours of quiet time to finish.
When to Force Line Leak Tests
• To comply with Federal, State, and local Regulatory
Agency requirements.
• To comply with the policy and procedures of your site.
• When a leak detection sensor alarms – per policy
and procedures at your site.
Manually Forcing Line Leak Tests
Lines MUST be calibrated and enabled before forcing
leak tests.
1. To force a Line Leak test, press the FMS button in
the Application Window.
2. Touch the screen to highlight the desired test,
then press the check-mark to begin the testing
process.
Line Leak Test Results
Line Leak test results are either increase, passed, failed,
or indeterminate.
Reasons Why Line Leak Tests Fail
• The tank leaks.
• Temperature instability – temperature variations
of the product within the line is the most common
source of interference and failed leak tests / false
alarms (a failure to detect real leaks can also result).
Look at the hourly temperature data on the leak test
report and retest if the variation is more than a few
tenths of a degree.
• Large changes in product temperature from the start
to the end of the test.
• Water Level changes from the start to the end of the
test.
• Product is being dispensed during a test.
Steps to Take When a Line Leak Test Fails
Leak tests do occasionally fail. A single failed leak test
should not be a cause for great concern – don’t panic.
Caution
Don’t excavate / repair a line because
of a single failed leak test. Reference
your site policy and procedures plan.
If a site fails a leak test, review the leak test report to
determine if there is an obvious source of interference with
the test. If such a source of interference is identified, retest
the tank as soon as possible. (Retest the tank to check the
first test result if no source of interference can be identified.
If necessary, run several tests.)
If repeated tests indicate a leak and no obvious source of
interference is found, then immediately have the tank
precision / pressure tested. If the precision test confirms
the presence of a leak then the tank owner must take
corrective action in accordance with federal, state and
local regulations.