Teledyne 3110 – Portable Trace/Percent Oxygen Analyzer, FM-approved configuration - Manual (Page 30)

Operation Model 3110
Teledyne Analytical Instruments 22
2. When the FINISH selection appears, press ENTER once the
analyzer is providing a stable oxygen concentration on the
span gas. This will 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.
3.2.8 Filter Screen
The 3110 includes user adjustable digital 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 O
2
readings. More filtering is required for lower trace ranges such as
10 ppm. Adding filtering will slow down analyzers response to changing
O
2
levels. The lowest effective level of filtering should always be
selected. The filter level should be lowered to 1 or 2 when setting the
span to avoid delays. For a 0-10PPM range a filler setting or 6 or 7
should typically provide good results.
To use this feature:
1. Use the UP/DOWN keys to navigate to the FILTER screen.
Then press ENTER to enter the setup screen.
2. Use the ENT/ON key to change the filter to the active mode.
The arrows will point left and right and the filter setting will
blink.
3. Use the UP/DOWN keys to select the desired setting.
4. Select the ENT/ON key to save the setting and to return to
the non-active mode on the filter screen.
3.2.9 LOG INTV Screen (Optional)
This screen is for use with the data logger option only. It indicates the
time interval between data samples taken by the data-logger. The interval