Teledyne 4020 Operating & Maintenance Manual page 10

4.6.16.2 User Select
4.6.16.3 Default (By Function)
4.6.16.4 Observing the gas Stream Concentrations
4.6.17 Standby
4.7 Advanced User Functions
4.7.1 Zero Offset Adjustment
4.7.2 Background Gas Selection
4.7.2.1 Manually Selecting a Background Gas
4.7.2.2 Automatic Background Gas Selection
4.7.2.3 Match/Invert
Maintenance & Troubleshooting ................................................ 67
5.1 Measuring Circuit Electrical Checks
5.1.1 Loss of Zero Control
5.1.2 Anode Voltage Check
5.1.3 Electronic Stability
5.1.4 Printed Circuit Board Replacement
5.1.5 Collector Cable
5.2 Temperature Control Electronic Check
5.3 Ignition and/or Flame Guard Circuit Checks
5.4 Sampling System
5.5 Printed Circuit Board Descriptions
5.5.1 Flame Guard and Anode Power Supply PCB
5.5.3 Proportional Temperature Controller PCB
5.5.4 Electrometer-Amplifier PCB
Appendix ...................................................................................... 79
Specifications
Application Data
Recommended Spare Parts List
Drawing List
Index ................................................... Error! Bookmark not defined.
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Model 4020
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