Gamry Instruments EIS Box, Operator'S Manual, Page: 33 / 52

Cell Connections
33
Table 6-2
Cell Cable Connections for a Membrane Cell
Color Type Name Normal Connection
Blue Banana Plug Working Sense Connect to reference electrode #1
Green Banana Plug Working Electrode Connect to counter electrode #1
White Banana Plug Reference Connect to reference electrode #2
Red Banana Plug Counter Electrode Connect to counter electrode #2
Fuses in the Cell Cable
The EIS Box can be damaged if currents much larger than 6 A flow into or out of the Counter electrode or
Working electrode leads. Improper connection to a battery, fuel cell, or supercapacitor can cause this type of
damaging current to flow.
All standard EIS Box Counter/Working cell cables include fuses in the current-carrying leads. These fuses protect
the instrument from the extremely large currents that can flow through an improperly connected
electrochemical-energy generation or storage device (including batteries, fuel cells, and capacitors). For
convenience, the term
“ battery ” is used here to refer to all single-cell or stacked electrochemical devices that
can distribute energy.
Grounding errors on a battery can be particularly dangerous, for they can result in the battery being shorted
through the instrument.
Both the counter electrode lead and the working electrode lead have fuses, rated to carry 6.3 A.
Access to the fuses requires removal of two screws on opposite sides of the hood covering the D-connector end
of the Counter/Working cable. A drawing of the D-connector end of a cable with the hood opened is given in
Figure 6-3. The small rectangular fuses snap into fuse-holders labeled
Work and Cntr . To remove the fuse,
Warning:
The fuses in the EIS Box Counter/Working cell cable do not protect against a
safety hazard. They are needed to prevent damage to the instrument if it is improperly connected.
Reference electrode #1 and counter electrode #1 must be on one side of the membrane,
and reference electrode #2 and counter electrode #2 must be on the other side.
Always turn off the EIS Box and disconnect both ends of the Counter/Working cable before
checking or replacing the fuses in the cable.