TS4000
8
2.6 Electrochemical Cell
The TS4000 uses three electrode electrochemical cells joined to a sensor identification board
(Figure 3) to provide the most stable and accurate gas detector possible.
NOTE:
The Oxygen deficiency assembly contains only two electrodes.
Gas diffusing into the electrochemical cell reacts at the sensing electrode by reduction or
oxidation depending on the type of sensor being used. The counter electrode acts to balance
the reaction at the sensing electrode. If oxidation occurs at the sensing electrode, Oxygen is
reduced to form water at the counter electrode. If the sensing electrode reaction is a reduction,
the counter electrode reaction is reversed and water is oxidized.
Figure 3: Electrochemical Cell Assembly
NOTE:
The Oxygen sensor does not have an identification board. However, the TS4000 will
automatically configure a fully functional Oxygen cell.
NOTE:
For electrochemical cell shelf life information, consult the manufacturer’s
documentation.
