Thermo 42i, Instruction Manual

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Preventive Maintenance
Replacement Parts
5-2 Model 42
i
Low Source Instruction Manual Thermo Electron Corporation
Replacement Parts
See the “Servicing” chapter for a list of replacement parts.
Cleaning the Outside
Case
Clean the outside case using a damp cloth being careful not to damage the
labels on the case.
Ozonator Air Feed
Drying Column
Replacement
Use the following procedure to replace the ozonator air feed drying column.
1. Remove the drying column from the connector DRY AIR bulkhead on
the rear panel of the instrument.
2. Replace spent absorbent material (indicating Drierite or silica gel) with
regenerated material.
3. Reinstall the drying column to the DRY AIR bulkhead.
4. Perform a Zero/Span check (see the “Calibration” chapter).
Capillaries Inspection
and Replacement
The capillaries normally only require inspection when instrument
performance indicates that there may be a flow problem.
Use the following procedure to inspect and replace the capillaries. This
procedure can be used to check any or all of the capillaries.
1. Turn the instrument OFF and unplug the power cord.
2. Remove the instrument cover.
Equipment Damage Do Not use solvents or other cleaning products to
clean the outside case.
Equipment Damage Some internal components can be damaged by small
amounts of static electricity. A properly grounded antistatic wrist strap must
be worn while handling any internal component. For more information
about appropriate safety precautions, see the “Servicing” chapter.