Operation
Model 3110
Teledyne Analytical Instruments
18
instance, if the range is set to 100 ppm then the 0-1 VDC output would
track the concentration as follows:
Concentration
(%)
Output
(V)
0
0
5
0.2
10
0.4
15
0.6
20
0.8
25
1.0
Use the UP/DOWN keys to navigate to the
AO RNG
screen and
then press ENTER. The following screen appears:
To define or change the range setting:
1.
Use the UP /DOWN keys to change the range value. Press
ENTER when the desired value is shown. The value will be
accepted and the cursor will move to the next editable field
(units).
2.
Use the UP/DOWN keys to cycle between ppm and percent
for units. Press ENTER to accept the displayed unit. The
display will then return to the
HOME
screen.
Note: The range setting resolution is 0.01 % for percent analysis.
3.2.6 SPAN VALUE Screen
The
SPAN VALUE
screen displays the oxygen concentration of the
span gas used for calibration. This is not a measured value; it is the
known span gas concentration that is input to the analyzer by the
operator.
