Teledyne 7600 - Infrared gas analyzer - operating manual - Manual (Page 99)

Infrared Gas Analyzer Maintenance
Teledyne Analytical Instruments 99
Figure 4-6: Cell Block Assembly
4.4 Optical Zero Adjustment
If the following operation is not performed correctly,
subsequent analysis may adversely be affected. This
operation should be performed by a trained technician or
the unit sent back to the factory for service.
The following adjustment is performed at reassembly after
removing and cleaning the sample cell.
1. Remove the top cover.
2. Allow dry N
2
or air to flow through the analyzer sample
gas inlet until the reading stabilizes. The sample gas is