Franklin Fueling Systems TS-LS300 AutoLearn Pressure-Based Electronic Line Leak Detector System Users Guide - Manual (Page 31)

LINE CALIBRATION (LEARN MODE) Page 4-5 4
LS300 User’s Guide
are any leaks, immediately turn off the power at the load center, lock out and tag out breakers, and
repair the leaks before proceeding.
When making changes to the switch settings, LEARN/DETECT or CHANNEL
ENABLE switches, the STOP/RUN switch must be moved to the STOP position for
ten seconds, after the switch changes are completed, before the changes will take
effect and returning the console to RUN.
8.) Purge remaining air from the system as follows: Dispense enough gasoline from the dispenser
farthest from the pump to remove all the air from that line. Repeat this procedure with each
dispenser, working your way back to the pump (other methods may be used as long as the air is
removed). Also open the Needle Valve to the Calibration Kit and remove air from this area. The
LS300 Auto-Learn ® will not calibrate properly if all of the air is not removed from the system. Once
complete, close the Needle Valve and turn off the submerged pump.
During the calibration process, no other activity should take place on this product
line. Product line stability is key to proper calibration of the LS300 console.
Calibrate only one channel at a time, completing the calibration process in a timely
fashion.
If the Leak Generator Device is not installed in the line to be calibrated follow steps
11 to 18 of Leak Generator Device Installation Section (see Figure 4-1). Leak
Generator Device must be installed in line to perform calibration.
9.) Energize the submerged pump and pressurize this product line. With the pump OFF, a pressure
gauge in the pipeline, and a minimum line pressure of 17.5 psi, ensure that the pressure change in
each pipeline is less than 5 psi within 5 minutes before beginning calibration process.
CAUTION Static line pressure must conform to Step 9 before proceeding with
the calibration process. Improper static line pressure values can prevent proper
calibration, which could result in not properly detecting line leaks in this system.
Repeat Step 9 until proper values are obtained or call Technical Support at (800)
984-6266 for assistance.
10.) Open the Needle Valve to the Leak Generator and completely bleed the line pressure to zero psi.
Allow needle valve to remain open during the calibration process, as this is necessary for proper
calibration.
After opening the needle valve to the Leak Generating Device, ensure that the fuel
flow through the orifice is a steady stream from pump OFF pressure to zero line
pressure. If there is not a steady stream, or line pressure does not drop completely
to zero, replace the Leak Generating Device or call Technical Support at (800) 984-
6266 for assistance. Never attempt to clean the orifice, as damage, or improper
calibration, may result.
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