Teledyne GFC-7001T - Trace CO Analyzer - Manual (Page 13)

Table of ContentsTeledyne API – Model T300/T300M CO Analyzer
Teledyne Analytical Instruments xiii
10.1.2.2. Spare Parts and Expendable Supplies .......................................................................................227
10.1.3. Recommended Standards for Establishing Traceability ....................................................................228
10.1.4. Calibration Frequency ........................................................................................................................229
10.1.5. Level 1 Calibrations versus Level 2 Checks ......................................................................................229
10.2. ZERO and SPAN Checks ........................................................................................................................230
10.2.1. Zero/Span Check Procedures ...........................................................................................................231
10.2.2. Precision Check .................................................................................................................................231
10.3. Precision Calibration ................................................................................................................................232
10.3.1. Precision Calibration Procedures ......................................................................................................232
10.4. Auditing Procedure ..................................................................................................................................232
10.4.1. Calibration Audit .................................................................................................................................232
10.4.2. Data Reduction Audit .........................................................................................................................233
10.4.3. System Audit/Validation .....................................................................................................................233
10.5. Dynamic Multipoint Calibration Procedure ..............................................................................................233
10.5.1. Linearity test .......................................................................................................................................233
10.6. References ..............................................................................................................................................235
PART III TECHNICAL INFORMATION ................................................................................ 237
11. MAINTENANCE SCHEDULE & PROCEDURES ............................................................ 241
11.1. Maintenance Schedule ............................................................................................................................241
11.2. Predicting Failures Using the Test Functions ..........................................................................................245
11.3. Maintenance Procedures .........................................................................................................................246
11.3.1. Replacing the Sample Particulate Filter .............................................................................................246
11.3.2. Performing Leak Checks ....................................................................................................................247
11.3.2.1. Pressure Leak Check .................................................................................................................247
11.3.3. Performing a Sample Flow Check .....................................................................................................247
11.3.4. Cleaning the Optical Bench ...............................................................................................................248
11.3.5. Cleaning Exterior Surfaces of the GFC7001T/GFC7001TM .............................................................248
12. TROUBLESHOOTING AND SERVICE ........................................................................... 249
12.1. General Troubleshooting .........................................................................................................................249
12.1.1. Fault Diagnosis with WARNING Messages .......................................................................................250
12.1.2. Fault Diagnosis with TEST Functions ................................................................................................253
12.1.3. the Diagnostic Signal I/O Function ....................................................................................................255
12.1.4. Status LEDs .......................................................................................................................................256
12.1.4.1. Motherboard Status Indicator (Watchdog) .................................................................................257
12.1.4.2. Sync Demodulator Status LEDs .................................................................................................258
12.1.4.3. Relay Board Status LEDs ...........................................................................................................259
12.2. Gas Flow Problems .................................................................................................................................261
12.2.1. GFC7001T/GFC7001TM Internal Gas Flow Diagrams .....................................................................262
12.2.2. Typical Sample Gas Flow Problems ..................................................................................................265
12.2.2.1. Flow is Zero ................................................................................................................................265
12.2.2.2. Low Flow ....................................................................................................................................265
12.2.2.3. High Flow ....................................................................................................................................266
12.2.2.4. Displayed Flow = “Warnings” .....................................................................................................266
12.2.2.5. Actual Flow Does Not Match Displayed Flow ............................................................................266
12.3. Calibration Problems ...............................................................................................................................266
12.3.1. Miscalibrated ......................................................................................................................................266
12.3.2. Non-Repeatable Zero and Span ........................................................................................................267
12.3.3. Inability to Span – No SPAN Button (CALS) ......................................................................................267
12.3.4. Inability to Zero – No ZERO Button (CALZ) .......................................................................................267
12.4. Other Performance Problems ..................................................................................................................268
12.4.1. Temperature Problems ......................................................................................................................268
12.4.1.1. Box or Sample Temperature ......................................................................................................268
12.4.1.2. Bench Temperature ....................................................................................................................268
12.4.1.3. GFC Wheel Temperature ...........................................................................................................269
12.4.1.4. IR Photo-Detector TEC Temperature .........................................................................................269