Teledyne 3010PA - Split architecture percent oxygen analyzer - Manual (Page 79)

4 Operation Model 3010P
4-2: Part II
Although the instrument can be spanned using air, a span gas with a
known oxygen concentration in the range of 70–90% of full scale of the
range of interest is recommended. Since the oxygen concentration in air is
20.90 %, the cell can take a long time to recover if the instrument is used
for low level oxygen analysis immediately following calibration in air.
Connect the calibration gases to the analyzer according to the instruc-
tions given in Section 3.4.1, Gas Connections, observing all the prescribed
precautions.
Shut off the gas pressure before connecting it to the analyzer, and
be sure to limit the pressure to 40 psig or less when turning it back on.
Readjust the gas pressure into the analyzer until the flowrate (as read
on the analyzer’s SLPM flowmeter) settles between 0.5 and 2.4 SLPM
(approximately 1-5 scfh).
Refer to Part I: Control Units, section 4.4, The Zero and Span Func-
tions for further instructions.
4.4 System Self Diagnostic Test
The self diagnostics are run automatically by the analyzer whenever
the instrument is turned on, but the test can also be run by the operator at
will. During the test, internal signals are sent through the power supply,
output board and sensor circuit automatically. The return signal is ana-
lyzed, and at the end of the test the status of each function is displayed on
the screen, either as
OK or as a number between 1 and 3. (See Table 4-1 for
number code.)
Note: Remote Probe connector must be connected to the Analysis
Unit, or sensor circuit will not be properly checked.
Instructions for running self diagnostics are repeated here for your
convenience:
1. Press the System button to enter the system mode.
2. Use the
< > arrow keys to move to More, and press
Enter .
3. Use the
< > arrow keys to move to Self-Test, and press
Enter .
During preamp testing there is a countdown in the lower right corner
of the screen. When the testing is complete, the results are displayed.
Power: OK Analog: OK
Preamp: 3
The following failure codes apply: