Franklin Fueling Systems TS-LS300 AutoLearn Pressure-Based Electronic Line Leak Detector System Users Guide - Manual (Page 34)

LS300 CONSOLE OPERATION Page 5-1 5
LS300 User’s Guide
5 LS300 Console Operation
Line Leak Tests
For normal operation verify the following:
At the LS300 Auto-Learn® Console: For each channel in use the corresponding
channel enable switch is in the ON position. The Mode Select switch, for each
channel in use, is set in the DETECT position. The “STOP/RUN” switch is in the
RUN position.
At the STP: The needle valve is closed, the Leak Generator is removed, and the
brass plug is in place. Turn power on to the LS300 Auto-Learn®, the STP,
dispensers and other equipment for the dispensing system.
To Clear Lamp Indicators and Alarms: Push the Test/Reset button on the console.
When the Test/Reset button is released the lamp indicators will cycle on in the
following sequence: HI, LO, Test and Alarm.
Three automatic line leak tests are conducted and monitored from the LS300 Auto-
Learn console.
GROSS (3.0 GPH) Leak Test
The Gross (3 GPH) leak test is initiated after each dispense cycle or after 45
minutes of quiet time. The test consists of 3 consecutive tests, timed at 5-minute
intervals. If one of the three tests pass, the line is determined to have no Gross
leak. If there is a failure, the test will continue until three consecutive tests fail.
Three failures will cause the ALARM light to blink, the alarm HORN to sound,
and the pump to shut down. If there is dispensing from the line during the testing
process, the testing will restart as soon as dispensing is complete. During
dispensing inactivity the Gross (3 GPH) test will repeat every 45 minutes after
passing tests, or until there has been no dispensing (line inactive) for 3 hours.
Monthly (0.2 GPH) Leak Test
When the line has been inactive for 3 hours, a monthly (0.2 GPH) test is initiated.
This test will be performed every 5 minutes until a test has passed. If there are
three consecutive failures, with no passes, the ALARM light will flash, and the
HORN will sound, indicating that there is a precision leak in the system. This
ALARM indication will not shut down the pump.