Panametrics Aurora H2O, User Manual

Page: 122 / 170

Chapter 6. Maintenance
2 Aurora H2O User’s Manual
6.2 Cleaning the Mirror (cont.)
2. Shut down the gas flow through the optical absorption cell.
a.
Turn the inlet isolation needle valve (item 4 in Figure 2 on page 4 or Figure 3 on page 5 ) to the closed position.
b. Ensure that the sample flow rotatmeter indicates zero flow.
3. Wear a pair of disposable static dissipative Latex or Nitrile (powder free) gloves.
Note:
There are two versions of the Aurora optical absorption cell assembly (see Figure 83 below), each with its
own mirror mounting mechanism. The mirror can be removed from the end of this cell for cleaning
WITHOUT DISMOUNTING the cell. Be sure to follow the correct mirror cleaning procedure for your version of
the optical absorption cell assembly.
Figure 83: Style 1 (Left) and Style 2 (Right) Optical Absorption Cell/Mirror Assemblies