Maintaining & Troubleshooting
Hardware Installation and Maintenance Manual B
–3
3. If the analyzer is going to be shut down for a long period of time,
follow the procedure for isolating the process sample tap for long-
term shutdown in “To isolate the analyzer for long-term
shutdown (full-featured sample system)” on page 4-10. It is
recommended to also disconnect the power completely from the
analyzer to prevent potential damage from lightning strikes.
Peak Tracking Reset Procedure
The analyzer’s software is equipped with a peak tracking function that keeps
the laser scan centered on the absorption peak. Under some circumstances,
the peak tracking function can get lost and lock onto the wrong peak.
Reset the peak tracking function if the difference between PkDf and PkDl is
more than 4, or Track Fail Error is displayed. Refer to the Firmware Manual
for this analyzer for instruction.
Mirror Cleaning/Replacement
If contamination makes its way into the cell and accumulates on the internal
optics, a Power Fail Error will result. If mirror contamination is suspected,
please consult with your factory sales representative before attempting to
clean the mirrors. If advised to do so, use the following procedure.
Todeterminethetypeofcellmirror
Measurement cells will come equipped with either a glass or stainless steel
mirror. Before determining whether to clean or replace the mirror, identify the
type of measurement cell being used in the analyzer. Analyzers will come
equipped with one or more, depending on configuration, of the cell types shown
in Figure B–1.
Do not attempt to clean the cell mirror until you have consulted
with your factory service representative and have been advised to
do so. Refer to “Service Contact” on page B-22 for service
information.
The sample cell assembly contains a low-power, 10 mW MAX, CW
Class 3b invisible laser with a wavelength between 700-3000 nm.
Never open the sample cell flanges or the optical assembly unless
the power is turned off.
Always handle the optical assembly by the edge of the mount.
Never touch the coated surfaces of the mirror.
To Next Page
Loading...
