Franklin Fueling Systems LS500 Auto Learn Line Leak Detection Installation & Users Guide - Manual (Page 16)

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Pre-Operational LS500 Testing
The line stability test procedure assumes that all STP’s, pump controllers, and AC inputs have been installed,
wired, calibrated and are operational and in accordance with their respective installation and operation
procedures. It also assumes that all T5 Series FMS console programming has been completed accurately.
Caution
DO NOT proceed to the Learn Process until each line successfully completes pre-operational
testing. Failure to perform this test or ignoring any failed tests may prevent the FMS application
from detecting a line leak.
Note: State and / or local laws may require a separate, more stringent manual line tightness test.
Before installing the LS-500, ALWAYS verify and comply with local regulations.
Note: The STP connected to the line being tested will need to be activated by lifting the appropriate product dispenser
handle. Verify that all STP’s and pump controllers are installed, calibrated and operational.
Note: The lines must be able to reach 20 PSI. If the lines cannot reach 20 PSI, the issue needs to be resolved or the
LS500 will not work in that STP.
Required Equipment
• LS 500 3.0 GPH Leak Generator Kit (TSP-ALCAL)
• Needle Valve Kit (TS-ALNIP)
• Pressure gauge
• Approved safety container
Line Stability Test
Perform the following steps for each line.
1. Install the needle valve kit, pressure gauge and leak generator into the STP manifold. Purge the line by
dispensing from each fueling point starting with the dispenser furthest from the tank. The STP should be running
the full time that the line is purged.
2. Once the line is purged, turn the STP off and monitor the pressure on the pressure gauge. The pressure should
not change more than 5 PSI (34.5 Kpa) in 5 minutes. If it does not change more than 5 PSI in 5 minutes proceed
to the learn process. If the pressure changes more than 5 PSI purge the lines again, and re-test.