INFICON DataFID Portable Flame Ionization Detector for Leak Detection and Repair (LDAR) - Manual (Page 47)

074-578-P1A 47
1/02/09 method 21 14:45
1/02/09 method 21 14:45
Method 21 Mode
This section describes Method 21 setup if the user chooses to perform Method 21 readings
without a PDA.
The Method 21 user mode displays the current detected concentration. The reading is updated
once a second. The DataFID can also store the maximum background and maximum
component concentrations for a selected component. At the end of every interval, one entry is
placed in the log.
To enter the Method 21 logging mode, the DataFID Setup menu must be entered. After entering
the 4 digit pass code, scroll down to the User Mode entry and press the select mode on the
display. Then, scroll down to Meth 21 log mode and press the select mode on the display. Hit
the back soft key to return to the main menu and press the "meas" soft key to start taking
measurements in the Method 21 logging format.
Figure 22. Method 21 Mode Background - Start
The first Method 21 screen is shown in Figure 22. The purpose of this step is to take a
BACKGROUND reading. When the user is ready to begin measuring a BACKGROUND value
simply press the ‘start’ soft key. The screen will change to that shown in Figure 23.
Figure 23: Method 21 Mode Background - St
Figure 23. Method 21 Mode Component - Background
1.72
ppm
Valve 12YJ5
H47
cancel view
start
1.72
ppm
Valve 12YJ5
H47
cancel view
stop