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Reference 3000

Potentiostat/Galvanostat/ZRA Quick-Start Guide

Reference Information

Procedure for Experiments

The procedure for running any experiment is:

Connect the cell cable leads to the appropriate electrodes on

the electrochemical cell. Refer to the table on this page or the

Gamry mouse pad for the color coding of the leads.

Select the script you want to run.

To use a standard Gamry script, select it from the application

submenus, such as DC Corrosion or Electrochemical

Impedance, accessible from the Experiment menu.

To use a custom script, select it from the "Scripts" folder

(Experiment > Named Scripts). This folder contains all scripts

(standard and custom), as well as global scripts used by other

scripts.

Name the .dta output file that will contain the experiment data

generated by the test. This ASCII text file will be created in "My

Gamry Data" (or the new destination you specify using the

Options menu).

Specify parameter values. When the window used to run a

script opens, the parameter values most recently used for this

script will be displayed. At this point you have several choices.

•

You can edit the parameter values. You can save the new

values to a ".set" file for future use by clicking on Save.

When assigning a name to the saved parameter values, it

is a good idea to include the name of the script or

experiment in the file name.

•

You can use values stored in an existing .set file by

clicking on Restore. A window will open that contains all

the .set files for all experiment types. Pick a file of values

for this type of experiment.

•

You can use the Gamry default values for this script by

clicking on Default.

Start the experiment and activate the potentiostat by

clicking on OK in the experiment window. Depending on the

script you selected, one or more messages may be displayed

containing advice for running the experiment.

If any messages are displayed, follow the advice, and then

acknowledge the messages by clicking on OK.

While the experiment is running, plotted data will be displayed.

Messages in the status bar allow you to monitor progress of the

test.

You can cancel the experiment by clicking on F1-Abort (no test

data stored), skip the current stage of the experiment by clicking

on F2-Skip, or temporarily halt the experiment by clicking on

F3-Pause.

At the conclusion of the experiment, an "Experiment Done"

message is displayed. The message contains instructions for

closing the window used to start the test.

Press the F2 (Skip) button.

Grounding

The Reference 3000 is a floating ground instrument. Its cell cable

contains only a floating ground lead (black clip). There is a

grounding lug on the rear of the Reference 3000 to earth ground the

instrument. If you are working mostly with non-grounded samples,

you should connect earth ground to this lug.

When using a Faraday Cage, connect the cell ground lead to the

cage to achieve the lowest noise. However, disconnect earth

ground from the instrument ground lug if the experiment setup

is earth grounded. For example, if the Faraday Cage, electrolyte

circulation pump, or a metal vessel for the cell is grounded, do not

connect earth ground to the grounding lug.

Gamry File Types

The types of files generated or used by Gamry software are

described below.

File

Type

.exp

.dta

.Gdata

.txt

.set

General Instructions for Connecting Leads

The leads on Gamry cell cables are color-coded for easy installation.

The meanings of the colors are below. Color codes are also on the

Gamry mouse pad shipped with the potentiostat.

Clip

Color

green

blue

white

red

orange

black

Notes:

blue and green leads – If you have used other manufacturers'

potentiostats and cell cables, you may be puzzled by Gamry's use of

two leads for working electrodes. The two working electrode leads

make it possible to devise a greater variety of experiments.

However, to do a standard three-electrode potentiostatic experiment,

connect both the green and blue clips to the working electrode (or

clip the green to the blue, and then clip the blue to the electrode).

orange lead – The orange lead is used only in ZRA (zero resistance

ammeter) experiments.

Gamry™, Series G 300™, Series G 750™, Reference 600™, Reference 3000™,

PCI4/300™, PCI4/750™, PC4™, PC3™, FAS2™, FAS1™, Gamry Framework™, and

Echem Analyst™ are trademarks of Gamry Instruments, Inc.

Microsoft

, Windows

Microsoft Corporation in the United States and/or other countries.

reproduced in any form without the prior written consent of Gamry Instruments, Inc.

What It Stores

experiment script written in Gamry Explain™

experiment control language; in "Scripts" folder

accessed via Framework Experiment menu

experiment results; in "My Gamry Data" folder

experiment results that have been manipulated in

Echem Analyst; in "My Gamry Data" folder

calibration results; in "My Gamry Data" folder; file

name is "calibration results <SN>.txt", where

<SN> is the serial number of the Reference 3000

experiment parameter values; in "Sets" folder

under software installation location

Electrode

working

working sense

reference

counter

counter sense

floating ground

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are registered trademarks of

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