Portable Trace Oxygen Analyzer Operation
Teledyne Analytical Instruments 35
1. Use the UP/DOWN keys to navigate to the SPAN screen.
Then press ENTER to start the span calibration.
Once the span calibration has begun the screen changes to reveal a
span finish selection.
2. When the FINISH selection appears, press ENTER to end the
span calibration. The analyzer will accept the calibration and
return to the HOME screen.
Note: After successfully performing a span calibration, you are
returned directly to the HOME screen rather than back to
the previous menu.
3.2.15 Filter Screen
The 3110 includes user adjustable filter. The filter has settings 1-
10. Setting 1 is the least amount of filtering and 10 is the highest level of
damping. The filter is used to reduce the noise level of the O2 readings.
More filtering is required for lower trace ranges such as 10 ppm. Adding
filtering will slow down analyzers response to changing O2 levels. The
lowest effective level of filtering should always selected. The filter level
should be lowered to 1or 2 when setting the span to avoid delays. For a
0-10 ppm range a filler setting or 6 or 7 should typically provide good
results.