Teledyne 3000 Ultra Trace - PPB oxygen analyzer User Manual
Page 21
2-9
Ultra Trace Oxygen Analyzer
Operational Theory 2
Teledyne Analytical Instruments
Figure 2-7: Block Diagram of the Model Ultra Trace 3000 Electronics
Power
Supply
A to D
Converter
Current
to Voltage
Amplifier
Second
Stage
Amplifier
System
Failure
Alarm
Displays
Micro-
Processor
Processing
Auto
Range
0-1 V
4-20 mA
D to A
Converter
Concentration
Range
Self Test
Signal
Sensor
Thermistor
T E C
Temperature
Controller
0-1 V
4-20 mA
FAN
HEAT
SINK
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