Franklin Fueling Systems TS-LS300 AutoLearn Pressure-Based Electronic Line Leak Detector System Users Guide - Manual (Page 36)

LS300 CONSOLE OPERATION Page 5-3 5
LS300 User’s Guide
required to complete the monthly (0.2 GPH) test. In between these tests, lamps will
indicate whether the last test passed or failed. A PASS will be indicated by a single
flash on the Test indicator lamp. Three consecutive FAILURES will put Auto-Learn
in alarm condition.
Annual (0.1 gph/ 0.38 lph) precision test: To initiate a manual Annual precision
test press and release the Test/Reset button wait for the TEST lamp to turn and
repeat that sequence a total of 4 times (4 Test/Reset pushbutton presses). The
Pump will turn on for 5 to 10 seconds to pressurize the line, and testing will begin.
A single PASS or three consecutive FAILURES are required to complete the annual
(0.1 GPH) precision test. In between these tests, lamps will indicate whether the
last test passed or failed. A PASS will be indicated by a double flash on the Test
indicator lamp. Three consecutive FAILURES will put Auto-Learn in alarm
condition.
Line Leak Detection
Detected line leaks may be an actual or false line leak alarms. Treat all detected
line leak alarms as actual line leaks until verified true or false.
False line leaks can occur because of the follow reasons:
product line instability (was a manual precision test started without waiting the
required 3 or 6 hour stabilization delay?), air trapped in a line or a loose fuel filter
(this is likely to occur after a new installation/maintence/service ...when was the last
service done?), thermal contractions in the line, STP/check-valve malfunction, or a
vapor recovery system malfunction.
DANGER A Gross (3 gph/ 11 Lph) leak is a large leak requiring immediate
action to locate and repair the source of the leak to avoid environmental
contamination, and to avoid fire or explosion hazards. A detected GROSS leak will
cause a positive pump shut-down, which will stop product dispensing.
WARNING Although monthly (0.2 gph) and annual (0.1 gph) leaks are smaller
leaks, these also require action to locate and repair the leak, to avoid environmental
contamination and to avoid fire or explosion hazards.
CAUTION DO NOT excavate / repair a fuel-line solely on the basis of a
single line leak detected alarm – confirm the presence of a leak before attempting /
scheduling any repairs.