Teledyne 3000TA - General purpose trace oxygen analyzer User Manual
Page 47
Trace Oxygen Analyzer
Operation 4
4-15
Teledyne Analytical Instruments
Use the
ΔΔΔΔΔ∇ arrow keys to enter the oxygen-concentration mode. Use
the < > arrow keys to blink the digit you are going to modify. Use the
ΔΔΔΔΔ∇
arrow keys again to change the value of the selected digit. When you have
finished typing in the concentration of the span gas you are using
(209000.00 if you are using air), press
Enter
to begin the Span calibration.
#### ppm Span
Slope=#### ppm/s
The beginning span value is shown in the upper left corner of the
display. As the span reading settles, the screen displays and updates informa-
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
Manual Mode Spanning
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.
Span: Settling:MAN
Use the
Δ∇ keys to toggle between AUTO and MAN span settling.
Stop when MAN appears, blinking, on the display. Press
Enter
to move to
the next screen.
Press
Enter
to move to the next screen.
Calib. Holding time
Cal hold: 5 min
This menue allows the operator to set the time the analyzer should be
held in the auto span mode. It does not affect anything in Manual Mode.
Just press Enter to continue.
Span Val: 000008.00
Press
Δ (
Use the arrow keys to enter the oxygen concentration of the span gas
you are using (209000.00 if you are using air). The < > arrows choose the
digit, and the
Δ∇ arrows choose the value of the digit.
Press
Enter
to enter the span value into the system and begin the span
calibration.