Contents ECA 450iv Instruction 0024-94002.17.10.2 Resetting Display Format Back to Factory Default .............................................442.17.11 Primary Air ...............................................................................................................................452.17.12 Data Logging ............................................................................................................................452.17.13 Statistics ...................................................................................................................................452.17.14 User Name ...............................................................................................................................452.17.14.1 Enter / Edit User Name Information...................................................................452.17.14.2 Clear User Name Information.............................................................................462.17.15 Keypad Sound ..........................................................................................................................462.17.16 High Resolution NOx Enable ....................................................................................................472.17.17 Print Pressure ...........................................................................................................................482.17.18 Information ..............................................................................................................................483 Calibration .................................................................................................................... 493.1 Initial Sensor Check ..................................................................................................................................493.2 Calibration Fixtures ..................................................................................................................................503.3 Starting and Ending a Calibration Procedure ...........................................................................................513.4 Calibrate Pressure Sensor ........................................................................................................................513.5 Calibrate T-Stack (Stack Temperature) Channel ......................................................................................523.6 Calibrate T-Air (Ambient Temperature) Channel .....................................................................................533.7 Calibrate HC Sensor .................................................................................................................................543.8 Calibrate CO-LO Sensor ............................................................................................................................553.9 Calibrate SO 2 Sensor ................................................................................................................................573.10 Calibrate NO Sensor .................................................................................................................................583.11 Calibrate NO 2 Sensor................................................................................................................................593.12 Calibrate CO-HI Sensor .............................................................................................................................604 Maintenance ................................................................................................................. 614.1 Battery Charging ......................................................................................................................................614.2 Water-Trap / Filter Assembly ...................................................................................................................624.3 Printer Paper Replacement ......................................................................................................................634.4 Sensor Replacement ................................................................................................................................644.4.1 O 2, CO, NO, NO2, & SO 2 Sensor Replacement ..........................................................................654.4.2 Nitric Oxide Sensor Battery Replacement................................................................................664.4.3 HC Sensor Replacement ...........................................................................................................674.5 Replacing Internal Particulate Filter.........................................................................................................684.6 Cleaning the Probe and Sampling Hoses .................................................................................................694.7 Resetting the Microprocessor ..................................................................................................................705 Troubleshooting ............................................................................................................ 725.1 Analyzer Repair ........................................................................................................................................725.2 Problem Messages Displayed After Warm-Up.........................................................................................725.3 Error Symbols ...........................................................................................................................................735.4 Troubleshooting Guide ............................................................................................................................746 Parts & Service .............................................................................................................. 796.1 Replacement Parts ...................................................................................................................................796.2 Accessories ...............................................................................................................................................806.3 Service Centers ........................................................................................................................................81