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Introduction
The Service Manual for the 9120, 30, 40, 80, and 81 Electrolyte Analyzers
contains the technical information needed to ensure easy fault identification.
This manual is intended to be complementary to the Operator's Manual where
detailed instructions for operation, maintenance and troubleshooting are
provided.
As for all clinical instrumentation, a thorough understanding of the principles
of operation is prerequisite to attempting service of this product. Training
along with experience will enhance the use of this manual.
Service and repair of 9120, 30, 40, 80, and 81 analyzers should be performed
only by qualified repair technicians. Care should be taken when removing the
covers as hazardous voltages are exposed. Use only accepted electronic test
procedures and static protection when replacing and handling all electronic
parts.
This manual is divided into 9 chapters to facilitate location of technical infor-
mation. Chapter 2 provides specifications and operating parameter informa-
tion. Chapter 3 includes flow charts for all system functions and detailed
operation of system test procedures. In Chapter 4, all mechanical, fluidic and
electronic assemblies are described. Chapter 5 outlines routine maintenance
and troubleshooting procedures. Chapter 6 includes electronic adjustments
and Chapter 7 provides the system block diagram and all circuit schematic
diagrams and wiring interconnection information. In Chapter 8, part identifica-
tion, location and description is provided by the illustrated parts list.
Finally, in Chapter 9 interface specifications are provided for the RS232
output.
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