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Warning:
Booster can short the cell. This can create excessive current and hazardous conditions. The 30 A Counter
and Working fuses provide only limited protection.
If the Counter and Working fuses open when you hook up your cell, you probably have an earth ground in
your cell system and an earth-grounded test system. Disconnecting the jumper between System Ground and
Protective Ground is likely to remedy this problem.
If the problem reoccurs with the ground jumper disconnected, make sure you do not have additional test
equipment connected to the system. If it still occurs with all additional equipment disconnected, contact
Gamry Instruments' technical support staff.
Figure 5-3 shows the ground jumper in place.
Jumper Connection between Protective Ground and System Ground
When earth-grounding the System Ground is not desired, rotate the ground jumper out of the way but left
attached to one of the binding posts (Fig. 7-2). This will prevent it being lost. If the jumper has been misplaced,
you can run a wire between the binding posts to earth-ground the system.
Grounds and Floating Operations
Connection of an earth-grounded cell to an earth-grounded Reference 30k
Figure 5-3
47
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