Teledyne 3020T Sample System, Characteristic Input/Output Curve for a Micro-Fuel Cell

Trace Oxygen Analyzer Operational Theory 2

Figure 2-3. Characteristic Input/Output Curve for a Micro-Fuel Cell

2.3Sample System

The sample system delivers gases to the Micro-Fuel Cell sensor from the analyzer gas panel inlets. 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 through the sample system. The sample encounters almost no dead space. This mini- mizes residual gas pockets that can interfere with trace analysis.

The sample system for the standard instrument incorporates ¼ inch tube fittings for sample inlet and outlet connections at the rear panel. For metric system installations, 6 mm adapters are supplied with each instrument to be used if needed. The sample or calibration gas flowing through the system is monitored by a flowmeter downstream from the cell.

Teledyne Analytical Instruments 2-5