The Unitrode is the ideal electrode for difficult media such as waste water. Especially when the media contains solids, the robust diaphragm of the Unitrode can handle it without problems.
The Unitrode can be purchased in different lengths from 125 mm to 450 mm.
The fixed ground joint diaphragm of the Unitrode stops back diffusion of the sample into the reference chamber of the electrode. The electrolyte solution can not be contaminated with sample.
Practical hints
If the diaphragm of the Unitrode is
blocked there is no need to use chemicals in order to clean it.
With a soft brush you can remove the impurities which have accumulated on
the diaphragm surface.
Do not use an electrode with a ceramic pin diaphragm!
pH measurement in water quite easy with Metrohm!