4.4.2 Procedure - Removing the Detector
Note
All figures are located at the end of this procedure.
1. From GCP, create a database backup of the Maxum analyzer that is to be modified (See
the Gas Chromatograph Portal User Manual for instructions).
2. From GCP, verify operation of analyzer. Verify that there are no alarms or that all alarms
are accounted for. (See the Gas Chromatograph Portal User Manual for instructions).
3. Verify that all parts of the new FID igniter kit are on site prior to starting. Contents of the
kit are listed in the inventory list that is shipped with the kit.
4. Extinguish the flame to the FID either by shutting off the air supply to the detector (for
hydrogen carrier) or shutting off the hydrogen to the detector (if not using hydrogen carrier).
In order to prevent condensation in the detector, allow carrier to flow for several minutes
after flame is extinguished. Use a mirror to check for condensation at the FID vent to verify
the flame is not lit (no condensation means the flame is not lit).
WARNING
Possible ignition source. Failure to follow proper safety procedures may result in injury or
death.
If the analyzer is equipped with a purged methanator and explosive gasses are present,
it is necessary to wait at least 8 minutes for the methanator to cool after powering down
the analyzer before opening the analyzer door.
5. Power down the analyzer.
Flame Ionization Detector
4.4 Replacing the FID Igniter
Maxum Edition II Detectors
38 Service Manual, May 2018, A5E42019847001
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