INFICON DataFID Portable Flame Ionization Detector for Leak Detection and Repair (LDAR) - Manual (Page 73)

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Connect the DataFID to the zero air supply and open the valve to the zero air supply. Then,
press the Next key (right hand red key). The optional tare key will be explained at the end of this
instruction.
5. The DataFID will automatically zero.
6. The DataFID will indicate that zero has been calibrated. If there is a problem with the zeroing
process, the DataFID will alert the user, e.g. zero is too high.
If only a zero calibration is to be performed, press Done. If span calibrations are required, press
the Next key to continue to the span concentrations.
7. The previously used calibration concentration will appear on the screen. If this is the first
required concentration, press next. If it is not the desired value, press the new key, and use the
up, down, and forward cursors to enter in the desired value.
8. This screen will automatically appear: Press next once the first span gas is attached.
Calibrating zero air
Zero air calibrated
Continue calibration?
Done Next
‘next’ to continue
OR ‘new’ to change
500 ppm
Cancel New Next
Attach
span gas 1
Cancel Next