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Product Note P10 CIM User Guide

1. minimum time base 10 us minimum period 0 5 ms maximum period 1000 ms ChronoPotentiometry The Current Interrupt Module CIM can be used during ChronoPotentiometry In Advanced mode the parameter CI at Level 2 is available When checked it will activate a Current Interrupt during the 2 level The data is recorded and shown in the transient window Note that this is especially useful in high speed mode IVIBM www ivium com Ivium Technologies P10 3 2
2. Product Note P10 CIM User Guide CIM specifications Current compliance 5A Voltage compliance 50V Resistance on state 0 13 Ohm typical Resistance off state gt 100 GOhm Interrupt time lt 2us power requirements powered from cell cable Size wxdxh 3 3x6 3x1 5cm Weight 60 gram Interfacing connectivity HD15 connects in line with cell cable Use only i c w Ivium potentiostats Functionality Enable the current interrupt technique for measuring the IR drop of the electrochemical system Installation The male side of the CIM can be placed directly on the cell connector of the IviumStat CompactStat The cell cable can be connected to the female side as before The CIM is thus connected between the instrument and the cell cable When not using the current interrupt technique all signals are passed through this module and it is fully compatible with the situation without CIM However the CIM adds ca 130 mOhm impedance to the cell cable This should be taken into account when measuring in the 2 electrode mode and it will slightly lower the compliance voltage of the potentiostat The latter will only have a significant effect when measuring very low impedance objects Application The CIM can be used for measuring the IR drop of an electrochemical system via the current interrupt technique As the name of the technique suggests the current of a running experiment is interrupted instantly and the response of the cell potential is me
3. asured in high speed mode The momentary drop of the cell potential representing the IR drop of the electrochemical system is then shown in a graph of the potential vs time Ivium Technologies P10 3 1 Operation In the IviumSoft the current interrupt technique is both integrated as a diagnostic tool in Direct Mode operation and integrated in the ChronoPotentiometry CP technique Diagnostic in Direct Mode TO operate the CIM in the Direct Mode set the desired potential in either the potentiostatic 4 electrode or 2 electrode configuration and then apply so that the the potential is applied to the test object and the current flows Then in the menu bar choose Tools gt CurrentInterrupt This will open a pop up window Current interrupt Sele Rescale Options Copy plot Copy result Interpolation Y P Current interrupt linear f exponential data range w c ah j o oO Pernod 60 0 At the bottom of the window the measurement period can be entered and to the top right the interpolation can be chosen linear exponential Then press apply The current is momentarily interrupted and the IR drop is automatically calculated and the calculated values are given in the legend to the right of the window The Current interrupt Tool uses the HiSpeed mode for recording the data Over the user defined period 64 datapoints are evenly distributed with number of datapoints fixed 64

Product Note P10 CIM User Guide

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