INFICON DataFID Portable Flame Ionization Detector for Leak Detection and Repair (LDAR) - Manual (Page 19)

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Flammable Gases
High concentrations of flammable gases (gases within their flammable range) can act as an additional
fuel source. When this happens, the flame height may increase beyond the confines of the combustion
chamber. The hydrogen supply will then be cut off and the flame will go out.
Flame out may also occur when the concentration of sample gas is so great that it causes an oxygen
deficiency. This may occur when sampling enclosed or confined spaces where vapors and gases cannot
escape. Watch for indications of increased flame height such as erratic readings or sudden high
concentrations followed by a flame out fault.
ACCESSORIES
Computer
The DataFID will send information stored in its logged memory or will continuously stream data to a
computer or PDA via Bluetooth wireless communication. This feature may be used if you need to prepare
reports based on the DataFID recorded data.
Information prepared on a PC such as “routing or tag information” may be uploaded to the DataFID via
Bluetooth as well.
WARNING
The DataFID is not classified for use in hazardous locations with non-
intrinsically safe rated computers.
Gas Sampling Bag
A gas sampling bag can be used for calibration of the DataFID. If you are unsure of the quality of ambient
air you should use an additional gas bag filled with zero air. Connect the sample bag to the inlet fitting
with the gas bag adapter. See DataFID Calibration section under User Functions chapter for more
information.
One sampling bag is included in the DataFID calibration kit Part No. MX396011. Additional gas bags are
also available (Part No. MX396017).
Charcoal Filters
A charcoal filter (Part No.MX396022, package of 10) may be connected to the DataFID during calibration
and sampling to provide clean air to the DataFID. The filter will remove hydrocarbon contamination from
room air to provide zero grade air to the DataFID.
NOTE: The charcoal filter does not filter methane or ethane. If these compounds are present, you should
use a gas bag with a supply of commercial zero air for calibration purposes.