TABLE OF CONTENTS Teledyne API – T101 Operation Manual
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7.5. Dynamic Multipoint Span Calibration ...................................................................................... 195
7.6. Special Calibration Requirements for Independent Range or Auto Range......................................196
7.7. References .........................................................................................................................196
8. INSTRUMENT MAINTENANCE................................................................................................... 197
8.1. Maintenance Schedule..........................................................................................................197
8.2. Predictive Diagnostics ..........................................................................................................201
8.3. Maintenance Procedures....................................................................................................... 202
8.3.1. Changing the Sample Particulate Filter............................................................................. 202
8.3.2. Changing the IZS Permeation Tube..................................................................................203
8.3.3. Maintaining the SO2 Scrubber .........................................................................................203
8.3.3.1. Predicting When the SO2 Scrubber Should Be Replaced. ...............................................203
8.3.3.2. Checking the Function of the SO2 Scrubber................................................................. 204
8.3.3.3. Changing the SO2 Scrubber Material.......................................................................... 204
8.3.4. Changing the External Zero Air Scrubber.......................................................................... 205
8.3.5. Maintaining the H2S SO2 Converter ..............................................................................206
8.3.5.1. Predicting When the Converter Catalyst Should Be Replaced......................................... 206
8.3.5.2. Checking the Efficiency of the H2S SO2 Converter.....................................................206
8.3.5.3. Changing the H2S SO2 Converter Catalyst Material................................................... 207
8.3.6. Checking for Light Leaks................................................................................................ 209
8.3.7. Changing the Critical Flow Orifice ....................................................................................209
9. TROUBLESHOOTING & SERVICE............................................................................................... 211
9.1. General Troubleshooting.......................................................................................................211
9.1.1. Fault Diagnosis with Warning Messages............................................................................ 212
9.1.2. Fault Diagnosis with Test Functions..................................................................................216
9.1.3. Using the Diagnostic Signal I/O Function .......................................................................... 217
9.1.4. Status LEDs .................................................................................................................218
9.1.4.1. Motherboard Status Indicator (Watchdog).................................................................. 219
9.1.4.2. CPU Status Indicator............................................................................................... 219
9.1.4.3. Relay Board Status LEDs..........................................................................................219
9.2. Gas Flow Problems ..............................................................................................................220
9.2.1. Zero or Low Sample Flow............................................................................................... 221
9.2.2. High Flow.....................................................................................................................221
9.3. Calibration Problems............................................................................................................ 221
9.3.1. Negative Concentrations ................................................................................................ 221
9.3.2. No Response ................................................................................................................222
9.3.3. Unstable Zero and Span................................................................................................. 222
9.3.4. Inability to Span - No SPAN Button.................................................................................. 222
9.3.5. Inability to Zero - No ZERO Button .................................................................................. 223
9.3.6. Non-Linear Response..................................................................................................... 223
9.3.7. Discrepancy Between Analog Output and Display............................................................... 224
9.4. Other Performance Problems.................................................................................................224
9.4.1. Excessive Noise ............................................................................................................224
9.4.2. Slow Response .............................................................................................................224
9.4.3. The Analyzer Doesn’t Appear on the LAN or Internet.......................................................... 225
9.5. Subsystem Checkout ...........................................................................................................225
9.5.1. Detailed Pressure Leak Check .........................................................................................225
9.5.2. Performing a Sample Flow Check.....................................................................................226
9.5.3. AC Power Configuration .................................................................................................226
9.5.4. DC Power Supply ..........................................................................................................227
9.5.5. I2C Bus........................................................................................................................ 228
9.5.6. Touchscreen Interface ................................................................................................... 228
9.5.7. LCD Display Module.......................................................................................................228
9.5.8. Relay Board .................................................................................................................228
9.5.9. Motherboard.................................................................................................................229
9.5.9.1. A/D functions......................................................................................................... 229
9.5.9.2. Analog Output Voltages........................................................................................... 229
9.5.9.3. Status Outputs....................................................................................................... 230
9.5.9.4. Control Inputs........................................................................................................ 230
9.5.10. CPU...........................................................................................................................230
9.5.11. RS-232 Communication................................................................................................ 231
9.5.11.1. General RS-232 Troubleshooting............................................................................. 231
9.5.11.2. Modem or Terminal Operation................................................................................. 231
07266B DCN6485