Franklin Fueling Systems LS500 Auto Learn Line Leak Detection Installation & Users Guide - Manual (Page 18)

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5. When finished, the message Learn Completed – No Errors is displayed on-screen and the Not Learned indicator
will become inactive.
Note: If any errors are encountered at any time during the Learn Process, the screen will display the applicable error
message and the Not Learned indicator will remain active. Refer to the Alarms chapter of this guide for information
on troubleshooting any errors that are displayed.
6. Once the line has been successfully learned, the line will automatically be enabled. Leave the leak generator
open. The console will automatically begin a gross leak test. If the line was learned properly it will detect the leak
and positive shutdown will occur after the 2nd failed 3 GPM test (Approximately 10 minutes)
7. Close the needle valve. To clear the alarm, navigate to the line control screen and choose reset alarm. The console
will ask: Do you also want to enable this line? Select OK. (If you select CANCEL the line will not be enabled) This
will automatically start another gross line test. A 3 gph pass will allow the FMS to continue to monitor the line. If this
test fails, isolate why the test failed, make necessary repairs, and then reset the alarm again.
8. Remove the leak generator and replace the leak generator plug. The needle valve kit should be left installed in the
manifold to easily allow functional testing, and re-learning lines if needed.
Learn Messages
Learn Message Description
Learning 0 offset Displayed when the console is calibrating 0
Excessive Offset or
Unstable Pressure
Pressure is unstable
Learning pump pressure Displayed when the console is learning the operating pressure
Insufficient pressure STP is not operating at a high enough pressure
No pressure loss Console does not detect a leak
Insufficient volume (line
too small)
Console detects a pressure drop that is too great
Learning pressure decay
curve
Displayed during the learn process to indicate that the calibrated leak decay curve is
being recorded
Modulus out of range Console detects a pressure drop that is too small
Learned The line has been learned