Maintenance; Routine Maintenance; Major Internal Components - Teledyne 3020T Operating Instructions Manual

Trace oxygen analyzer

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Trace Oxygen Analyzer

Maintenance

Aside from normal cleaning and checking for leaks at the gas

connections, routine maintenance is limited to replacing fuses, and

recalibration. For recalibration, see Section 4.4 The Zero and Span

Functions.

SEE WARNINGS ON TITLE PAGE OF THIS MANUAL.

All internal components are accessed by unbolting and swinging

open the front cover, as described earlier. The major internal component

locations are shown in Figure 3-1, the cell block is illustrated in Figure

3-2, and the fuse receptacle is shown in Figure 3-3.

The 3020T contains the following major internal components:

 Sensor (L-2C)

 Cell block

 Customer Interface PCB (Power Supply on bottom surface)

 Preamp PCB (Contains Microprocessor)

 Front Panel PCB (Contains Displays)

 5 digit LED meter

 2 line, 20 character, alphanumeric, VFD display

 Solenoid Operated Gas Control Valves (–C option only).

See the drawings in the Drawings section in back of this manual

for details.

Teledyne Analytical Instruments

Maintenance

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