Existing concrete structures that require potential assessment surveys to be carried out usually have representative areas surveyed using an Ag/AgCl mapping electrode to check the reinforcement steel for corrosion activity.
SILVION Type ME100 mapping electrodes are designed for use with a high input impedence (10MOhm) voltmeter to measure direct potentials on the concrete surface. The electrodes have an integral sponge for intimate contact with the concrete. The electrodes are also supplied complete with a solid cap which should be fitted when the electrode is not in use, this will protect the ceramic contact disc.
All Silvion reference electrodes are supplied with a Calibration Certificate
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