Sulfur analysis with the Coulometric Sulfur Module
multi EA 5000
76
1
2
3
4
5
6
7
Figure 47Coulometric sulfur detectors without measuring cell
1 Measuring gas hose from the basic
module (hose 71)
2 Measuring gas hose to the measur-
ing cell (hose 72)
3 HX absorber
4 Hose 73
5 Magnetic mixer with controls
6 Magnetic mixer connection
7 NOx absorber
Measuring cell
The measuring cell is equipped with electrodes for generation and indication. The elec-
trodes are color-coded:
¡
Generation: Yellow anode, red cathode
¡
Indication: Black indicator electrodes
The measuring gas is routed into the measuring cell via the gas inlet tube. The solution
for the end point routine, the sodium sulfate solution (Na
2
SO
3
) and the solutions for the
cell measurements are dosed, for example, via the port for manual dosing.
The measuring cell must be filled with approx. 100 ml electrolyte solution (approx. to
the height of the manual dosing port).
