Fukuda FL-601 Series, Operational Manual

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SUPPLEMENT MASTERLESS Q&A
Q3: Do you have any advice on how to use the fitting leak tester correctly?
A3: The fitting test analyzes the changes in detected differential pressure data, but an input that expresses these
changes in differential pressure well will allow for a more accurate fit.
Curves in which the differential pressure is stable (influenced by heat radiation) will, as shown below, change
greatly in the beginning and the rate of change will decrease as time progresses. For this reason, collecting data
that expresses a rapid differential pressure change allows for more efficient fitting.
At this point, you can allocate BAL2 process time to the DET process, but make sure to not let the differential
pressure sensor go above its range.
Past Testers
Fitting Leak Tester
BAL
process
DET process
BAL Process
DET Process
Wait for the differential
pressure to stabilize, start the
DET process and the leak
test.
Other than when there is
movement influenced by the
valve, evaluate the data from the
DET process.
If it is possible to attain the
differential pressure curve, the
DET process can be shortened.