Teledyne 3110 – Portable Trace/Percent Oxygen Analyzer, FM-approved configuration - Manual (Page 38)

Maintenance Model 3110
Teledyne Analytical Instruments 30
CAUTION: THE MICRO-FUEL CELL CONTAINS KOH SOLUTION,
WHICH IS CAUSTIC. SHOULD THE CELL RUPTURE,
A LEAK MAY CAUSE INJURY. PLEASE REFER TO
MATERIAL SAFETY DATA SHEET IN THE APPENDIX
TO LEARN ABOUT POTENTIAL HAZARDS AND
CORRECTIVE ACTION IN CASE OF ACCIDENT.
No tools are required to replace the cell in the instrument. Simply
unscrew (counterclockwise) the plug at the bottom of the analyzer and
the cell will drop out of the manifold cavity.
Remove the new cell from its package, and carefully remove the
shorting clip. Do not touch the silver-colored sensing surface of the cell,
as it is covered with a delicate Teflon membrane that can be ruptured in
handling.
Place the cell on the end of the cell holder cap so that the sensing
surface of the cell is in contact with the cap and the electrical contact
plate end of the cell is facing upwards. Insert the cell and cap in the
manifold cavity, and screw the cap back into place. Apply as much
pressure as you can with your fingers, but use no tools.
After the cell has been installed, purge the instrument with an inert
gas (or the sample), and then proceed as directed in section 3.1.1.
4.6 Cell Warranty
The majority of micro-fuel cells used in the Model 3110 carry a
six-month warranty from date of service.
With regard to spare cells, service time starts when the cell is
removed from its shipping package. The customer should stock only one
spare cell per instrument at a time. Do not attempt to stockpile spare
cells.
If the Model 3110 is used in trace analysis applications where CO
2
is a major component in the sample, the A2C micro-fuel cell should be
used. At low CO
2
concentrations (1,000 PPM or less) the standard B2C
cell performance will not be affected. Figure 4-2 shows the effects of
CO
2
on the cell life of a Class B-2C cell.
If the analyzer is going to be used on percent ranges, a B-1 cell can
be used. The B-1 sensor will provide better service life in percent
applications.