Teledyne 7500 - Infrared gas analyzer - operating manual - Manual (Page 67)

67 Model 7500 Instruction Manual
Teledyne Analytical Instruments
7.3.2 How to clean cell
1. To clean the cell inside or infrared ray transmission window, first clear large dirt of it with a soft
brush and then wipe with soft cloth lightly.
Donʼt use hard cloth.
Note: Handle the fragile window with care. Use care not to rub off the dirt from the window roughly.
2. If the window or the cell interior is very dirty, use a soft cloth moistened with absolute alcohol.
3. If the window is corroded, rub off the scale from the window lightly with a soft cloth to which
chrome oxide powder is applied. If it is excessively corroded, it should be replaced with
new one.
4. When cell or window cleaning is completed, assemble according to the cell disassembly and
assembly procedures. Especially, the pipe should be closely connected without gas leak,
and repair if the pipe is bent.