MODEL 300 COMBUSTION ANALYZERInstruction 24-9223 iii4 CALIBRATION .................................................................................... 4-14.1 Sensor and/or Control Panel Removal ........................................ 4-34.2 Ambient Temperature Calibration - R24 ................................... 4-54.3 Toxic Gas Span Calibration ........................................................ 4-74.3.1 CO Span Calibration - R9 ................................................ 4-74.3.2 Optional NOX & SO2 Span Calibration .......................... 4-94.4 Thermocouple Span Calibration - R19 ....................................... 4-94.4.1 Low-Range Thermocouple Calibration ........................... 4-94.4.2 High-Range Thermocouple Calibration ........................ 4-114.5 Oxygen Sensor Calibration ....................................................... 4-145 MAINTENANCE .................................................................................. 5-15.1 Oxygen Sensor Replacement ...................................................... 5-15.2 Toxic Sensor Replacement .......................................................... 5-35.3 Filter/Trap Filter Replacement .................................................. 5-55.4 Cleaning the Gas Sampling System ........................................... 5-75.4.1 Cleaning the Probe and its Sampling Hose .................... 5-75.4.2 Cleaning the Analyzer’s Sampling System ................... 5-105.5 Leak Testing .............................................................................. 5-125.6 Printer Paper Replacement ...................................................... 5-135.7 Optional Sensor Bias Battery Replacement ............................. 5-145.8 Optional DIP Switch Settings ................................................... 5-156 REPLACEMENT PARTS, ACCESSORIES, AND DIAGRAMS ......... 6-16.1 Replacement Parts List ............................................................... 6-16.2 Accessories List ........................................................................... 6-36.3 Wiring Diagram ........................................................................... 6-4GLOSSARY OF TERMS .......................................................................... G-1BACHARACH SERVICE CENTERS ...................................................... G-3TABLE OF CONTENTS (Cont.)