Electronics; General; Signal Processing - Teledyne 3190 Series Operating Instructions Manual

Trace oxygen analyzer

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Trace Oxygen Analyzer

Figure 2-2. Characteristic Input/Output Curve for a Micro-Fuel Cell

2.3

The signal processing uses an Intel microcontroller with on-board

RAM and ROM to control all signal processing, input/output, and display

functions for the analyzer. System power is supplied from a universal

power supply module designed to be compatible with most international

power sources.

The power supply circuitry is on the Power Supply PCB, which is

mounted vertically, just behind the rear panel of the Control Unit.

The signal processing electronics including the temperature compen-

sated amplifier, microcontroller, analog to digital, and digital to analog

converters are located on the Main PCB, which is mounted vertically, just

behind the front panel of the Control Unit.

Figure 2-3 is a block diagram of the signal processing electronics

described below.

Electronics

Teledyne Analytical Instruments

Operational Theory 2

2-5

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