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4 connecting cords are used (see the figure below):1 BNC / 1 m / FX (blue head): between the “REF” socket of the PGZ or PST andthe reference electrode of the electrochemical cell.2 PL259 / 1 m / FX (blue head): between the “AUX” socket of the PGZ or PSTand the auxiliary electrode of the electrochemical cell.3 PL259 / 1 m / black banana: between the “WORK” socket of the PGZ or PSTand the working electrode of the electrochemical cell.4 BNC / 1 m / black banana: between the “SENSE” socket of the PGZ and theworking electrode of the electrochemical cell.FX (blue head)Black banana plugs1234BNC plugBNC plugPL259 plugsCK112 Kit of 6 cables for cell connection (Part no. A96C112)“WORK” or “SENSE” socket ?The “SENSE” socket is a working electrode terminal at high impedance. Byconnecting the working electrode to both “WORK” and “SENSE” sockets, youeliminate the ohmic drop due to the contact resistor of the working electrode andthe ohmic drop of the 2 working electrode cables.The working electrode is to be connected to the “WORK” socket only in almost anycases when the electrode contact and cable resistors are negligible (typically lessthan 1 Ohm) in comparison with the resistance of the solution situated between theworking and the reference electrodes.As a general use, the working electrode is to be connected to both “WORK” and“SENSE” sockets when low impedances and/or high currents are to be measured.The “SENSE” socket is not a reference electrode input. Neverconnect a reference electrode to this socket (you may damage yourelectrode).120VoltaLab 21/06/10/40/50/80Section 5, Chapter 1: The PGZ and PST series