RADIOMETER ABL90 FLEX - Diagram; Parts and Description; Construction of the Pco; Sensor

ABL90 FLEX reference manual 5. Sensors and optical system
5-23
Construction of the pCO
2
sensor
Item Part Description
1 Silicone membrane A membrane separating the sample and the
electrolyte solution. Is only permeable to CO
2
.
2 Electrolyte solution A solution separating the silicone membrane and
the pH membrane, Ag/AgCl sensors. The
electrolyte solution is vented by CO
2
whereby pH
is changed.
3 pH membrane H
+
sensitive membrane.
4 Reference Ag/AgCl electrode
5 Solid-state contact
for the pH system
The point of electrical contact between the pH
membrane and the analyzer.
6 Solid-state contact
for the Ag/AgCl
system
The point of electrical contact between the
reference electrode and the analyzer.
7 Electrode base The structural platform on which the electrode is
formed.
Diagram
Parts and
description