Teledyne Trace Oxygen Analyzer, 3000TA-XL-EU Electronics and Signal Processing

2 Operational Theory Model 3000TA-XL-EU

2.4Electronics and Signal Processing

The Model 3000TA-XL Trace Oxygen Analyzer uses an 8031 micro- controller with 32 kB of RAM and 128 kB of 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 any international power source. Figure 2-6 shows the location of the power supply and the main electronic PC boards.

The signal processing electronics including the microprocessor, analog to digital, and digital to analog converters are located on the motherboard at the bottom of the case. The preamplifier board is mounted on top of the motherboard as shown in the figure. These boards are accessible after re- moving the back panel. Figure 2-7 is a block diagram of the Analyzer electronics.

Figure 2-6: Electronic Component Location Inside the Model 3000TA-XL

2-8 Teledyne Analytical Instruments