Portable Trace Oxygen Analyzer
Operation
Teledyne Analytical Instruments
21
To change the span gas concentration:
1.
Use the UP/DOWN keys to navigate to the
SPAN VALUE
screen. Then press ENTER to enter the setup screen.
2.
Use the UP /DOWN keys to change the span value. Press
ENTER to accept the displayed value and to return to the
SPAN VALUE
screen.
3.2.7 SPAN Screen
This screen is used to perform a span calibration on the Model
3110XL. The appropriate span value must have already been input to the
instrument. See Section 3.2.6 for entering a span value into the analyzer.
CAUTION: THE CORRECT SPAN VALUE MUST BE ENTERED
INTO THE INSTRUMENT THAT CORRESPONDS TO
THE ACTUAL SPAN GAS USED. FAILURE TO ENTER
THE PROPER VALUE WILL RESULT IN ERRONEOUS
READINGS.
Note: The filter should be set to a low value to avoid errors
during span setting. Allow the oxygen reading to become stable
prior to setting the span.
To perform a span calibration:
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.
