Cell Failure Checks - Teledyne 3010TB Operating Instructions Manual

Oxygen Analyzer
The results screen alternates for a time with:
Then the analyzer returns to the initial System screen.
4.5
Cell failure is covered in detail in Part I: Control Units, section 4.4.1.3,
Cell Failure. Cell replacement is covered Part II: Analysis Units chapter 5,
Maintenance.
Cell failure in the 3010T is usually associated with inability to zero the
instrument down to a satisfactorily below 5PPM reading. When this occurs,
the 3010 system alarm trips, and the VFD displays a failure message.
Before replacing the cell:
a. Check your span gas to make sure it is within specifications.
b. Check for leaks downstream from the cell, where oxygen may be
Table 4-1: Self Test Failure Codes
Power
0 OK
1 5 V Failure
2 15 V Failure
3 Both Failed
Analog
0 OK
1 DAC A (0–1 V Concentration)
2 DAC B (0–1 V Range ID)
3 Both Failed
Preamp
0 OK
1 Zero too high
2 Amplifier output doesn't match test input
3 Both Failed
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Cell Failure Checks

#.#
CELL FAIL/ ZERO HIGH
leaking into the system.
Teledyne Analytical Instruments
Part II: Analysis Unit
ppm Anlz
Part II: 4-3