INFICON DataFID Portable Flame Ionization Detector for Leak Detection and Repair (LDAR) - Manual (Page 68)

074-578-P1A 68
select span gas
connect zero
General Procedure to Calibrate the DataFID
Before calibration begins, make sure the DataFID is turned on and is in measure mode.
Single Point Calibration
1. Press both the left and right user keypad keys together. This will initialize the DataFID.
Calibration Mode Screen
2. Select the desired Calibration Gas. The DataFID has 3 Calibration Memories and can be
calibrated with 3 different span gases or response factors if desired. Only one Cal Memory can
be used at a time.
3. Connect the supply of zero air and press Next to set the Zero Point for calibration
4. If you are using a charcoal filter, connect the filter as outlined in the Accessories section in
Chapter 1 Introduction. Press Next and the DataFID will set its zero point. NOTE: The charcoal
filter does not filter methane or ethane. If these compounds are present, use a gas bag with a
supply of commercial zero air.
5. If you are using a gas bag with zero air, connect the gas bag adapter to the inlet. Open the
bag and press Next and DataFID sets its zero point. Under certain circumstance, ambient air
may be used as the zero air.
Hexane Span Gas
Methane Span Gas
Propane Span Gas
cancel
select
Connect to Zero Air
and open valve
cancel tare
next