Pine Research MSR 636A, User Manual, Page: 55 / 176

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DRU10002 (REV 004 / JAN 2017)
Tip:
Most modern potentiostats provide separate cable connections for
the working electrode “drive” line and for the working electrode
“sense” line. The drive line carries current while the sens
e line
measures the potential. Both of these lines must be connected to
the rotating electrode brushes. (Note that many older potentiostats
use only one cable to carry both the drive and sense signals for the
working electrode.)
Note:
Cell cables on newer model Pine potentiostats use RED to mark the
working electrode
“ drive ” line and ORANGE to mark the working
electrode “ sense ” line. Both of these should be connected to the
rotator brushes (see Figure 4.8).
Note:
Older Pine bipotentiostats use only one cable connection for both
the “drive” and the “sense” signals. This connection is marked with
a YELLOW banana jack on the bipotentiostat front panel.
Tip:
There is no universally accepted color coding scheme for marking
potentiostat cell cable connections. If you are using the rotator with
a third-party potentiostat, consult the potentiostat documentation
for information about the cell cable markings.
4.4.2 RRDE Wiring
The lower pair of brush contacts are only used with a rotating ring-disk electrode
(see Figure 4.9). The lower pair of brushes (blue) contacts the ring electrode while
the upper pair (red) contacts the disk electrode. Banana jumper cables are used
to short together the opposing brushes in each pair to assure good contact with
both sides of the rotating shaft.