Fuses In The Cell Cable; In-Line Fuse-Holders And Fuses - Gamry Instruments Reference 3000 Operator's Manual

Color Type
Blue Banana plug
Green Banana plug
White Pin jack
Red Banana plug
Orange Banana plug
Black Pin jack
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.

Fuses in the Cell Cable

All standard Reference 3000 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
source energy.
Grounding errors on a battery can be particularly dangerous because they can result in the battery being
shorted through the instrument. During the development of the Reference 3000, several prototype
instruments—without fuses—were damaged when connected to a Li-ion battery stack.
Warning:
against a safety hazard. They are needed to prevent damage to the instrument if it is improperly connected.
Both the counter electrode lead and the working electrode lead must be fused. Two different cell-cable fuse
arrangements have been built or are planned.

In-line Fuse-Holders and Fuses

The In-line fuse design is provided with Counter/Working cables supplied with early Reference 3000
shipments. The fuses in the cable are plastic and brass fuse-holders located in-line with the current-carrying
leads, as shown in Figure 6-1. The photograph in this Figure shows the Working and Counter electrode leads
with in-line fuse-holders. The Counter electrode fuse-holder has been opened to show the fuse. The fuse-
holder contains a hidden spring that keeps the fuse in contact with the cell lead.
Cell Connections – Fuses in the Cell Cable
Table 6-4
Cell Cable Connections for a Membrane Cell
Name
Working Sense
Working Electrode
Reference
Counter Electrode
Counter Sense
Floating Ground
The fuses in the Reference 3000 Counter/Working cell cable do not protect
47
Normal Connection
Connect to reference electrode #1
Connect to counter electrode #1
Connect to reference electrode #2
Connect to counter electrode #2
Leave open (only needed in ZRA mode)
Leave open or connect to a Faraday shield