Electrolysis Device SGM5EL Composition
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6 Composition of the SGM5-EL
6.1 General composition
The SGM5-EL is composed of the control unit and the combicell. The general
composition and evaluation unit are shown in figure 1. The combi cell
consists of electrolysis cell and analysis cell (figure 2).
Fig. 1:
Circuit diagram of the SGM5-EL
1
2
5
6
7
3
4
Measurig Gas
Fig 2:
General composition of electrolysis and analysis cell
The electrolysis cell and the analysis cell consist of a tube made of zirconium
dioxide (2/1) with two platinum wire electrode. Inside the tube the measuring
electrode (2/3) is placed. The reference electrode (2/4) outside the tube has
a constant electrode potential. The measuring gas flows through the ceramic
tube. The electrodes and the ceramic tube form a galvanic cell (solid
electrolyte cell).
Measuring
cell
(sensor)
1 Ceramic tube
2 Ceramic cover of the
reference electrode
3 Measuring electrode
4 Reference electrode
5 Thermocouple
6 Reference electrode
connection
7 Measuring electrode
connection