1100-2294 Rev 1 4Analog Span Range 335. Care & Maintenance 345.1 Maintenance Intervals 345.2 Adjustments 355.2.1 Introduction 355.2.2 General Calibration Procedure 365.2.3 Zero Adjustment 365.2.4 Span Adjustment 375.2.5 System Bump Test 385.3 Troubleshooting 395.3.1 Hexadecimal Format 395.3.3 Fault Codes 395.4 Sensor Maintenance 415.4.1 Replacing the Sensor Module 415.5 Cleaning the Instrument 426. Additional Information 436.1 Sensor Principle 436.1.1 Electrochemical Sensors 436.1.2 Catalytic Bead Sensors 436.1.3 Semiconductor Sensors 446.1.4 Infrared Sensors 446.2 Disposing of the Instrument 456.2.1 Disposing of the Electrical & Electronic Equipment 456.2.2 Disposing of Sensors 456.3 Sensor Specifications 456.4 Modbus Registers 466.4.1 Integration - Dynamic Sensor Data 466.4.2 Integration - Static Sensor Data 476.4.3 Integration - General System Setup 486.4.4 Integration – Calibration 496.4.5 Integration - User Debug Tools 506.4.6 MGS Compatibility - Status Flags 506.4.7 Integration - Status Flags 50