Counter Terminal; Reference 3000 Counter/Working Connector; Rear-Panel Connectors - Gamry Instruments Reference 30k Booster Operator's Manual

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Panel Indicators, Controls and Connectors – Rear-panel Connectors

Gamry has provided a nut-driver for easy connection to this terminal. It prevents over-tightening the terminal

and minimizes the probability of short-circuiting the cell.

The plastic partition between the two high-current terminals on the front panel of the Reference 30k Booster is

a vital safety feature. It prevents metal wrenches or other metal tools bridging between the terminals and short-

circuiting the cell.

Counter Terminal

The Counter terminal is a high-current connector that normally connects to the working electrode of an

electrochemical cell. It can handle current up to 30 A.

This terminal is a USA 3/8" × #16 bolt. It is normally connected to the cell with a heavy-gauge, low-

inductance cable. The standard length cable is 90 cm long. Its Gamry P/N is 985-00122.

Gamry has provided a nut-driver for easy connection to this terminal. It prevents over-tightening the terminal

and minimizes the probability of short-circuiting the cell.

The Reference 3000 Counter/Working connector on the front panel of the Reference 30k Booster connects

two analog signals between the booster and the Reference 3000. The signals are the Reference 3000's

Working electrode (a current input) and the Counter electrode (a voltage output).

The cable normally used for this interconnect is Gamry P/N 985-00116. It has a 15-pin D-connector on each

end.

Caution:

This cable has special grounding and shielding required for operation of the system. Third-party 15-pin

male-to-female cables may physically connect the instruments, but will not offer full performance, and

could cause damage.

In pass-through mode, the Reference 3000 Counter and Working signals are routed to the high-current

terminals on the Reference 30k Booster.

In the boosted mode, the Reference 3000 Counter signal is used as the input signal to the high-output-current

control amplifier in the Reference 30k Booster. In this mode, a 30 A-to-3 mA current converter is used to

provide a current to the Reference 3000's Working Signal.

Figure 4-2 shows the rear panel of the Reference 30k Booster. Its connectors are discussed in detail below.

Do not use any cable other than Gamry P/N 985-00116 to make this connection.

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