4000 Table of Contents
Service Manual III
4.18 Chamber Adapter (opacity measuring chamber 4000)......................................................................4-40
4.18.1 Components Location Diagram...................................................................................................4-40
4.18.2 Circuit Diagram.............................................................................................................................4-41
4.19 Transmitter Board (opacity measuring chamber 4000)......................................................................4-42
4.19.1 Components Location Diagram...................................................................................................4-42
4.19.2 Circuit Diagram.............................................................................................................................4-43
4.20 Receiver Board (opacity measuring chamber 4000)...........................................................................4-44
4.20.1 Components Location Diagram...................................................................................................4-44
4.20.2 Circuit Diagram.............................................................................................................................4-45
4.21 Fan Board (opacity measuring chamber 4000)....................................................................................4-46
4.21.1 Components Location Diagram...................................................................................................4-46
4.21.2 Circuit Diagram.............................................................................................................................4-47
4.22 Wiring Diagrams.....................................................................................................................................4-48
4.23 Internal Cabling.......................................................................................................................................4-51
4.24 4-/5-Gas Section......................................................................................................................................4-52
4.24.1 Pneumatics Board..........................................................................................................................4-52
4.24.2 Multi-gas Measuring System - General Requirements.............................................................4-52
4.25 Service Mode ...........................................................................................................................................4-54
4.25.1 Changing O
2
and NO Sensor.......................................................................................................4-54
4.25.2 Gas Calibration..............................................................................................................................4-54
4.25.3 4-/5-Gas..........................................................................................................................................4-54
4.25.4 Diesel - Opacity Measuring Chamber Type A...........................................................................4-60
4.25.5 Diesel - Opacity Measuring Chamber 4000 ...............................................................................4-62
5. 4-/5-Gas Measuring Instruments Unit
5.1 General......................................................................................................................................................5-1
5.2 Gas Analyzer ...........................................................................................................................................5-2
5.2.1 Light Source...................................................................................................................................5-3
5.2.2 Motor Unit......................................................................................................................................5-3
5.2.3 Measuring Cell...............................................................................................................................5-4
5.2.4 Filter/Receiver...............................................................................................................................5-4
5.2.5 Pressure Sensor..............................................................................................................................5-4
5.2.6 Main Board and Lambda Piggyback ..........................................................................................5-5
5.2.7 Causes of Error ..............................................................................................................................5-5
5.3 Layout of Pneumatics.............................................................................................................................5-5
5.3.1 Solenoid..........................................................................................................................................5-7
5.3.2 Valve Unit.......................................................................................................................................5-7
5.3.3 Particulate Filter ............................................................................................................................5-7
5.3.4 Pump...............................................................................................................................................5-8
5.3.5 Pressure Sensor..............................................................................................................................5-9
5.3.6 Pneumatics Board..........................................................................................................................5-9
5.4 Power Supply Unit for 4-/5-Gas Measuring Instruments Unit........................................................5-10
5.5 Power Supply Board...............................................................................................................................5-10
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