Housing sensor electrode system

When the system which was to be linked to the autosampler system was purchased, it was found that the conductivity cell was excessively large and primarily designed to be fitted to a A" pipehne for analytical purposes this was clearly too large. However, the pH cell provided an Ingold standard electrode system with dimensions which allowed it to be placed within the conductivity sensor, as shown in Fig. 7.21. It is therefore possible to configure a flow cell in which the conductivity sensor houses the pH electrode. The latter also serves to take up most of the cell volume so that the wash-out requirements are not too excessive. The cell is filled by taking a sample from the autosampler with pump 1 hquid fills the cell and overflows via the weir arrangement and the top of the cell. 

In order to use the sensor on an industrial scale, an appropriate housing is needed in which the required electrodes and temperature sensor are positioned in the scientifically and technically most considered and logical way. Additional requirements imply that the system should be robust and offer good protection against blows and/or other possible causes of defects. The system should be easy to handle, electrodes and other components should be straightforward to replace, the calibration of the electrodes should be accomplishable in a quick and particularly simple way, and the system must... 

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