Teledyne 2000A-EU - General purpose thermal conductivity analyzer - Manual (Page 53)

Thermal Conductivity Analyzer Operation 4
4-15 Teledyne Analytical Instruments
arrow keys to toggle between
AUTO and MAN span settling. Stop when
AUTO appears, blinking, on the display.
Select span
mode: AUTO
Press Enter to move to the next screen.
Span Val: 2Ш.ШШ %
To begin span
Use the < > arrow keys to toggle between the span concentration value
and the units field (%/ppm). Use the
∆∆∆∆∆∇
arrow keys change the value and/or the
units, as necessary. When you have set the concentration of the span gas you are
using, press
Enter to begin the Span calibration.
#### % O2 — N2
Slope=##### Span
The beginning span value is shown in the upper left corner of the display.
As the span reading settles, the screen displays and updates information on
Slope. Spanning automatically ends when the span output corresponds, within
tolerance, to the value of the span gas concentration. Then the instrument auto-
matically 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.
Select span
mode: MANUAL
Use the
∆∇
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.
Span Val: 2Ш.ШШ %
To begin span
Use the < > arrow keys to toggle between the span concentration value
and the units field (%/ppm). Use the
∆∆∆∆∆∇
arrow keys change the value and/or the
units, as necessary. When you have set the concentration of the span gas you are
using, press
Enter to begin the Span calibration.
Press Enter to enter the span value into the system and begin the span
calibration.