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Percent Paramagnetic Oxygen Analyzer
Sensor
24V Power
Supply
0-1 V
0-1 V
Figure 2-5: Block Diagram of the Model 3020M Electronics
Sensor Amplifier
Auto
Range
Self Test
Signal
Concentration
Range
Teledyne Analytical Instruments
Operational Theory 2
A to D
Converter
Power
Supply
System
Micro-
Failure
Processor
Alarm
Displays
D to A
Converter
2-7
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