I Monitor Bnc - Gamry Instruments Reference 3000 Operator's Manual

Some of Gamry applications assign three of the digital output to control stirring, flow of de-aeration

gas, and formation of mercury drops on a mercury drop electrode.
Four digital inputs that can be read in an Explain experimental control script.

A 12-bit D/A converter used to set "continuously variable" settings, such as electrode rotation rate on a

rotating disk electrode.
A 5 V isolated power supply that can provide up to 50 mA of current for external circuitry.

Caution:
connections to the Misc. I/O Connector. We do not recommend use of standard 15-pin shielded cables
with this connector. Custom cables with the shield connected to pin 6 of the D-connector are preferred.

I Monitor BNC

The I Monitor BNC connector represents the output of the Reference 3000's current measurement circuit.
With the exception of the filtering described below, it is the raw signal. It is high bandwidth on the less-sensitive
current ranges. The effective bandwidth of the current signal falls as you reach the nA and pA current ranges.
IE Stability capacitors further slow the response.
The outer shell of this BNC connector is connected to the Reference 3000's floating ground.
Panel Indicators and Connectors – Rear Panel
Floating operation of the Reference 3000 can be compromised by improper
I Monitor BNC
E Monitor BNC
Expansion Interface
62
Aux. In BNC
Sig. Gen. Out BNC
Ext. Sig. In BNC