INFICON DataFID Portable Flame Ionization Detector for Leak Detection and Repair (LDAR) - Manual (Page 29)

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CAUTION: When filling the DataFID hydrogen fuel cylinder, ensure that the hydrogen fuel cylinder on/off
valve is completely open in the counterclockwise position.
Figure 8. Hydrogen fuel cylinder on/off valve
Figure 9. Hydrogen Fuel Cylinder Filling Station
WARNING: FIXED REGULATOR,
DO NOT ATTEMPT TO ADJUST
Output Valve
Attach Hydrogen Fuel
Cylinder Here
Hydrogen Cylinder
on/off valve