Teledyne Analytical Instruments 3000PA-EU, Руководство по эксплуатации, Страница: 76 / 87

A-9
Percent Oxygen Analyzer Appendix
Teledyne Analytical Instruments
to toggle between AUTO and MAN zero settling. Stop when MAN appears,
blinking, on the display.
Zero: Settling: Man
<ENT> To Begin
Press
Enter
to begin the zero calibration. After a few seconds the first
of five zeroing screens appears. The number in the upper left hand corner is
the first-stage zero offset. The microprocessor samples the output at a prede-
termined rate. It calculates the differences between successive samplings and
displays the rate of change as
Slope=
a value in parts per million per second
(ppm/s).
#### % Zero
Slope=#### ppm/s
NOTE: It takes several seconds for the true Slope value to display. Wait about
10 seconds. Then, wait until Slope is sufficiently close to zero before
pressing
Enter to finish zeroing .
Generally, you have a good zero when
Slope
is less than 0.05 ppm/s
for about 30 seconds. When
Slope
is close enough to zero, press
Enter
. In a
few seconds, the screen will update.
Once span settling completes, the information is stored in the
microprocessor, and the instrument automatically returns to the
Analyze
mode.
NOTE: The MSDS on this material is available upon request
through the Teledyne Environmental, Health and
Safety Coordinator. Contact at (626) 934-1592