Instruction manual

TABLE OF CONTENTS SM425 INSTRUCTION MANUAL
10.1.4 Entering Tag Name .................................................................................................................... 159
10.1.5 Language Selection .................................................................................................................... 160
10.2 Blow Back ........................................................................................................................................ 160
10.2.1 Blow Back Setup ........................................................................................................................ 160
10.3 Operational Data Initialization ....................................................................................................... 163
10.4 Reset ................................................................................................................................................ 167
10.5 Handling of the ZO21S Standard Gas Unit ................................................................................... 167
10.5.1 Standard Gas Unit Component Identification ............................................................................. 168
10.5.2 Installing Gas Cylinders .............................................................................................................. 168
10.5.3 Calibration Gas Flow .................................................................................................................. 169
10.6 Methods of Operating Valves in the ZA8F Flow Setting Unit ..................................................... 172
10.6.1 Preparation Before Calibration ................................................................................................... 172
10.6.2 Span Gas Flow Valve Adjustment .............................................................................................. 172
10.6.3 Zero Gas Flow Valve Adjustment ............................................................................................... 172
10.6.4 Operation After Calibration ......................................................................................................... 173
11.0 INSPECTION AND MAINTENANCE .............................................................. 175
11.1 Inspection and Maintenance of the Detector ............................................................................... 175
11.1.1 Cleaning the Calibration Gas Tube ............................................................................................ 175
11.1.2 Replacing the Sensor Assembly ................................................................................................ 176
11.1.3 Replacement of the Heater Unit ................................................................................................. 178
11.1.4 Replacement of Optional Dust Filter Assembly .......................................................................... 181
11.1.5 Replacement O-rings ................................................................................................................. 181
11.1.6 Cleaning the High-temperature Probe Adapter .......................................................................... 181
11.1.7 Process Shutdown and Startup .................................................................................................. 182
11.2 Inspection and Maintenance of the Converter ............................................................................. 182
11.2.1 Cleaning ..................................................................................................................................... 182
11.2.2 Adjusting LCD screen contrast ................................................................................................... 182
11.2.3 Replacing Fuses ......................................................................................................................... 183
11.3 Replacing Flowmeter in SM425CAL Autocalibration Unit .......................................................... 185
12.0 TROUBLESHOOTING .................................................................................... 187
12.1 Errors: Displays and Corrective Actions ...................................................................................... 187
12.1.1 What is an Error? ........................................................................................................................ 187
12.1.2 Error Troubleshooting and Corrective Actions ........................................................................... 188
12.2 Alarms: Displays and Corrective Actions .................................................................................... 191
12.2.1 What is an Alarm? ...................................................................................................................... 191
12.2.2 Alarm Corrective Actions ............................................................................................................ 192
12.3 Corrective Actions for Measurement Errors ................................................................................ 198
12.3.1 Measured Value Higher Than Actual Value ............................................................................... 198
12.3.2 Measured Value Lower Than Actual Value ................................................................................ 199
12.3.3 Intermittent Abnormal Measurements ........................................................................................ 199
42500001 REV A xiii