Figure 2-3. Characteristic Mfc Input/Output Curve - Teledyne 3020T Operating Instructions Manual

Trace Oxygen Analyzer
words it has a linear characteristic curve, as shown in Figure 2-3. Measuring
circuits do not have to compensate for nonlinearities.
In addition, since there is zero output in the absence oxygen, the
characteristic curve has close to an absolute zero (within ± 1 ppm
oxygen). In practical application, zeroing may still used to compensate
for the combined zero offsets of the cell and the electronics. (The
electronics is zeroed automatically when the instrument power is turned
on.)

Figure 2-3. Characteristic MFC Input/Output Curve

2.3 Sample System
The sample system delivers gases to the Micro-Fuel Cell sensor
from the analyzer rear panel inlet. Depending on the mode of operation
either sample or calibration gas is delivered.
The Model 3020T sample system is designed and fabricated to
ensure that the oxygen concentration of the gas is not altered as it travels
Teledyne Analytical Instruments
Operational Theory
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