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DRU10002 (REV 004 / JAN 2017)
4.4
Cell Connections
The counter electrode and the reference electrode are usually mounted in
appropriate side ports on the electrochemical cell (see Figure 4.7). The counter
electrode is often a simple platinum wire or carbon rod to which an alligator clip
is easily affixed.
Figure 4.7: Connection of Counter and Reference Electrodes
Always consult the manual for the potentiostat system to determine which cell
cable leads should be connected to the counter and reference electrodes. For
newer Pine potentiostats, the reference electrode cable is color coded as white,
and the counter electrode cable is color coded as green. Many commercially
available reference electrodes have a sturdy pin connector on the top end which
can accept an alligator clip. The cable which connects the reference electrode
to the potentiostat should be of the shielded (coaxial) type, and care should be
taken to route this cable well away from noise sources such as power cords,
networking cables, or video monitors.
Note:
Cell cables on newer model Pine potentiostats use GREEN to mark
the counter electrode connection and WHITE to mark the reference
electrode connection (see Figure 4.7).
Older Pine bipotentiostats use RED to mark the counter electrode
and use a BNC connector for the reference electrode.
Summary of Contents for MSR 636A
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