Franklin Fueling Systems TS-DTU Noise Suppression Cables TS-DRK - Manual (Page 3)

3
Determine if Replacing the DTU Cables
Will Solve Communication Issues.
1. Print a system alarm report for this year. This
report will show the occurrences of the alarms.
From the Web Page: System->Reports, select Alarm
History->Year 2009
From the LCD: Click the print button then Alarm
History button.
2. Check the quality of the DTU communication.
a. Make sure the Console DTU is at version
0.9.8. The remote DTUs may be at 0.9.6 or
0.9.8.
b. Turn off all the canopy lights and other lighting
circuits that may be turn on during the night
time hours.
c. Begin logging the DTU Quality using the TSA
Upgrade Tool. See Exhibit B for details on
setting up the tool to log DTU quality. The
DTU quality may also be checked on the
diagnostics web page. If you use the web
page then you will need to refresh the page to
update the values. See Figure 4.
d. The quality should average >70. The
occasional dip will be ok but should average
rather high. If the DTU Quality averages above
70 then proceed to step E, otherwise proceed
to step G.
e. Turn on all the canopy lights and other lights
that may be on during the night time hours.
f. See if the quality begins to drop below the
threshold of 70. If so then you may need the
DTU cables, otherwise proceed to step G.
g. You will need to analyze the Alarm Report
more closely to determine if the alarms are
being generated by other problems. Proceed
to the Alarm Examples section of this
document.
Figure 4 - DTU Quality Web Page