Agilent 7820 GC Service
271
PC and try again.
If the firmware does not completely download to the GC, reboot
the GC and try again. (Note that firmware download takes time,
so be patient.)
If the firmware update fails, try again. Reboot the GC and PC if
needed.
To Update Frit Constants (for old version detector
only)
Frit constants update is only compatible to 7820A
old version detectors. Frit constants update is Not
required for 7820 new version detectors.
To update the GC firmware, use Agilent Instrument Utiltiies,
version B.01.06 or greater. When possible always use the latest
version of Instrument Utilities.
The 7820A GC uses a generic electronic pressure control
module (EPC) for its detectors. However, the flow characteristics
needed for the GC to properly calculate flows in the detector
require information about the detector body. This information is
determined from the frits and tubing that are part of the detector
body. The GC stores this data. From the factory, the correct frit
information is loaded into the GC for any installed detectors.
However, if you replace a detector, install a new detector, or
perform certain repairs (change the main board), you will need to
upload the correct frit information into the GC. Use the Frit
Constants tool for this task.
Before beginning, you need to know:
ï‚· The detector body serial number
ï‚· The installed detector type
You also need the frit data file information that shipped with the
new detector.
The detector serial number is printed on the detector body. Open
the detector top cover and look for a bar code label on the side of
the detector.
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