Rosemount 755, Instruction Manual

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8
R
EPLACEMENT
P
ARTS
748183-H
8-1
Rosemount Analytical
December 1997
The following parts are recommended for routine maintenance and troubleshooting of the
Model 755 Oxygen Analyzer. If the troubleshooting procedures do not resolve the problem,
contact your local Rosemount Analytical service office. A list of Rosemount Analytical
Service Centers is located in the back of this manual.
Tampering or unauthorized substitution of components may adversely
affect safety of this product. Use only factory-documented components for
repair.
8.1 CIRCUIT BOARD REPLACEMENT POLICY
In most situations involving a malfunction of a circuit board, it is more practical to
replace the board than to attempt isolation and replacement of the individual
component. The cost of test and replacement will exceed the cost of a rebuilt
assembly. As standard policy, rebuilt boards are available on an exchange basis.
Because of the exchange policy covering circuit boards the following list does not
include individual electronic components. If circumstances necessitate replacement of
an individual component, which can be identified by inspection or from the schematic
diagrams, obtain the replacement component from a local source of supply.
8.2 REPLACEMENT PARTS
To minimize downtime, stocking of the following spare parts is recommended.
632358 Detector, 0-5% or greater range increments 1*
622421 Optical bench, for detector 632358 1*
622422 Detector/Optical bench assembly, corrosion resistant, 0 to 1
% or greater range increment 1*
622444 Detector/Optical bench assembly, non-corrosive applications,
0 to 1 % or greater range increments 1*
616418 Source lamp kit 1
WARNING: PARTS INTEGRITY