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Thermal Conductivity Analyzer Part II: Analysis Unit
Teledyne Analytical Instruments Part II: 3-1
Operation
3.1 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 analyzed, 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:
Table 4-1: Self Test Failure Codes
Power
0 OK
1 5 V Failure