Detectors - Agilent Technologies 7820A Service Manual

Detectors

316
Agilent 7820 GC Service
This section contains an illustrated parts breakdown for each of
the following GC detectors and related components.

Flame Ionization Detector ( 316) (FID)

Thermal Conductivity Detector ( 324) (TCD)

Microcell Electron Capture Detector ( 331) (uECD)

Nitrogen Phosphorus Detector ( 339) (NPD)

Flame Photometric Detector ( 347) (FPD)
Note:
The GC 7820A detectors have been redesigned and updated to
new version in Jul 2012. Below are the main changes:
1. The UEPC has been replaced by 5 dedicated detector EPCs.
2. The connections between detector and EPC have been
changed from thumb nuts to tubing blocks similar to 7890.
3. The frit constants update is NOT required for the new version
detectors.
4. The new version detectors require firmware revision
A.01.12.003 or higher.
5. The 7890A detectors (including EPC) and 7820A new
detectors (including EPC) are NOT compatible.
All the old versions of detectors and UEPC will continue to be
supported.
For detail information refer to service note 7820A-035.