Manual Mode Spanning - Teledyne 3010PA Operating Instructions Manual

4 Operation
tion on Slope. Spanning automatically ends when the span output corre-
sponds, within tolerance, to the value of the span gas concentration. Then the
instrument automatically returns to the analyze mode.
4.4.2.2
Press Span to start the Span function. The screen that appears allows
you to select whether the span calibration is to be performed automatically or
manually.
keys to toggle between AUTO and MAN span settling.
Use the
Stop when MAN appears, blinking, on the display. Press Enter to move to
the next screen.
Press (<UP>) to permit modification (Mod #) of span value.
Use the arrow keys to enter the oxygen concentration of the span gas
you are using (20.90 if you are using air). The < > arrows choose the digit,
and the arrows choose the value of the digit.
Press Enter to enter the span value into the system and begin the span
calibration.
Once the span has begun, the microprocessor samples the output at a
predetermined rate. It calculates the difference between successive samplings
and displays this difference as Slope on the screen. It takes several seconds
for the first Slope value to display. Slope indicates rate of change of the Span
reading. It is a sensitive indicator of stability.
When the
press Enter . (Generally, when the
the full scale of the range being calibrated for a period of ten minutes it is
sufficiently stable.) Once Enter is pressed, the
correct value. The instrument then automatically enters the Analyze func-
tion.
4-12: Part I

Manual Mode Spanning

value displayed on the screen is sufficiently stable,
reading changes by 1 % or less of
Model 3010
reading changes to the
PA