ZRA(zero resistance ammeter) is integrated in all CS series Potentiostats/Galvanostats. There is no voltage or current being applied on the system.Therefore, ZRA can be also called "Open Circuit" technique.
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The cable connection in ZRA is different than other general electrochemical testings.
In ZRA the connection is as follows:
- WE&SENSE (green& white) alligators both connect to the sample to be tested(WE I).
- The black GND alligator connects to another sample(WE II).
- RE(yellow) alligator connects to the reference electrode.
- CE(red) alligator is not used.
ZRA is usually used for Galvanic corrosion and electrochemical noise (ECN).