INFICON DataFID Portable Flame Ionization Detector for Leak Detection and Repair (LDAR) - Manual (Page 48)

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1/02/09 method 21 14:45
1/02/09 method 21 14::45
cancel view
view meth 21
When the user has a valid BACKGROUND reading on the display, simply press the ‘stop’ soft
key.
The maximum value measured between ‘start’ and ‘stop’ will be saved into the log
associated with the current Method 21 tag. The screen will change to that shown in Figure 24.
Figure 24. Method 21 Mode Component - Start
Now that the Background value has been successfully logged, the COMPONENT value must be
measured for the current tag. When the user is ready to begin measuring a COMPONENT
value, press the ‘start’ soft key. The screen will change to that shown in Figure 25.
Figure 25. Method 21 Mode Component - Stop
When the user has a valid COMPONEN T reading on the display, press the ‘stop’ soft key. The
maximum value measured ‘start’ and ‘stop’ will be saved into the log associated with the current
Method 21 tag. The screen will change to that shown in Figure 26.
Figure 26. Method 21 Mode Component - Results
This view displays the Corrected value which is the maximum COMPONENT value minus the
BACKGROUND max value. It also displays the Leak Definition for the current tag and allows the
user to compare the Leak Definition with the Corrected value. Once the comparison is
54.3
ppm
Valve 12YJ5 H47
54.9
ppm
Valve 12YJ5
COMPONENT
cancel view
stop
start
Corrected:
52.6
ppm
Leak Def:
100
ppm
status