Teledyne T400 User Manual page 12

5.4.2 Manual Reload/Update Procedures ...............................................................................................102
5.4.3 Instrument Display Calibration (for earlier instruments) .................................................................103
5.5 Time Zone Changes ..................................................................................................................................104
5.6 Maintenance Procedures ...........................................................................................................................105
5.6.1 Replacing the Sample Particulate Filter .........................................................................................105
5.6.2 Rebuilding the Sample Pump ........................................................................................................106
5.6.3 Replacing the IZS Option Zero Air Scrubber .................................................................................106
5.6.4 IZS Desiccant Option .....................................................................................................................107
5.6.5 Performing Leak Checks ................................................................................................................107
5.6.5.1 Vacuum Leak Check and Pump Check...........................................................................107
5.6.5.2 Pressure Leak Check ......................................................................................................108
5.6.6 Performing a Sample Flow Check .................................................................................................109
5.6.7 Maintaining the Photometer Absorption Tube................................................................................109
5.6.8 Adjusting the Optical Bench UV Lamp ...........................................................................................110
5.6.9 Replacing the Optical Bench UV Lamp ..........................................................................................111
5.6.10 Adjusting or Replacing the IZS Ozone Generator Option's UV Lamp ...........................................112
5.7 Service and Troubleshooting .....................................................................................................................114
5.7.1 Fault Diagnosis with Alerts .............................................................................................................115
5.7.2 Fault Diagnosis with Dashboard Functions ....................................................................................116
5.7.3 The Diagnostic Signal I/O Function ...............................................................................................118
5.7.4 Status LEDs ...................................................................................................................................118
5.7.4.1 CPU Status Indicator .......................................................................................................118
5.7.4.2 I C Bus Watchdog Status LED ........................................................................................119
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5.7.4.3 O
5.7.5 Flow Problems ...............................................................................................................................121
5.7.5.1 Flow is Zero .....................................................................................................................121
5.7.5.2 Low Flow .........................................................................................................................122
5.7.5.3 High Flow .........................................................................................................................122
5.7.5.4 Actual Flow Does Not Match Displayed Flow .................................................................122
5.7.5.5 Sample Pump ..................................................................................................................122
5.7.6 Calibration Problems ......................................................................................................................122
5.7.6.1 Miscalibrated ...................................................................................................................122
5.7.6.2 Non-Repeatable Zero and Span .....................................................................................123
5.7.6.3 Inability to Span - No SPAN Button (CALS) ...................................................................123
5.7.6.4 Inability to Zero - No ZERO Button (CALZ) ....................................................................123
5.7.7 Other Performance Problems ........................................................................................................123
5.7.8 Temperature Problems ..................................................................................................................123
5.7.8.1 Box Temperature .............................................................................................................124
5.7.8.2 Sample Temperature .......................................................................................................124
5.7.8.3 UV Lamp Temperature ....................................................................................................124
5.7.8.4 IZS Ozone Generator Temperature (Optional) ...............................................................124
5.7.9 Subsystem Checkout .....................................................................................................................125
5.7.9.1 AC Mains Configuration...................................................................................................125
5.7.9.2 DC Power Supply ............................................................................................................126
5.7.9.3 I C Bus .............................................................................................................................126
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5.7.9.4 Touchscreen Interface .....................................................................................................127
5.7.9.5 LCD Display Module ........................................................................................................127
5.7.9.6 Relay Board .....................................................................................................................127
5.7.9.7 Pressure/Flow Sensor Assembly ....................................................................................128
5.7.10 Motherboard ...................................................................................................................................129
5.7.10.1 A/D Functions ..................................................................................................................129
5.7.10.2 Status Outputs .................................................................................................................129
5.7.10.3 Control Inputs - Remote Zero, Span ...............................................................................130
5.7.11 CPU ................................................................................................................................................130
5.7.12 RS-232 Communications ...............................................................................................................130
5.7.12.1 General RS-232 Troubleshooting ....................................................................................130
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Option Status LED ......................................................................................................119
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Teledyne API - Model T400 O Analyzer 083730400A DCN8130
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