Version 5.30 Features

Version 5.30 will operate with the Reference 600^TM and with the PCI4^TM family of Potentiostats, and the NEW Series G family of Potentiostats.  It will not operate with PC4 or PC3 family Potentiostats. PCI4 users will be able to download and run Version 5.30 using their existing Version 4.x Authorization codes.  There is no charge for this upgrade!

This new version adds some new capability to the Gamry Framework^TM and to the Echem Analyst^TM and corrects some bugs.

Support for Windows Vista^TM!

Starting with Version 5.21, the Gamry software is compatible with the 32-bit Windows Vista^TM Operating System as well as Windows® 2000 and Windows® XP.

New Icons

New desktop icons are used for the Gamry Framework^TM and Echem Analyst^TM  programs and for the shortcut to your My Gamry Data folder. These icons are Vista compatible and really spiffy.

Goodbye beaker and op-amp!  Hello Erlenmeyer! Goodbye notebook! Hello magnifying glass! Time marches on. 

An Important Note for Upgraders!

Beginning with Version 5.20 some important changes in the Folder/Directory structure were implemented for ease of use with Windows Vista.  If you have Custom Framework scripts or Custom Echem Analyst GScripts, or are just looking for your data, you can read the details of the changes here.

An Important Fix for PHE200^TM and PV220 Users!

• Beginning with Version 5.10, a bug was corrected in the Positive Feedback iR Instrument Firmware for the Reference 600 and the drivers for the PCI4 family Potentiostats. Reference 600 users must update their Instrument Firmware to Version 1.50 or later to fix this bug! For PCI4 users, no special action is required.  The drivers will be updated when the Framework Version 5.21 is installed. 

  Reference 600 users: Consult Chapter 4 of the Reference 600 Operator's Manual ( PDF ) under "Firmware Update", or download just that section here.

• Version 5.21 corrected a bug in the Echem Analyst GScript for Cyclic Voltammetry.

Gamry Framework^TM Changes

• The THE Repassivation Potential experiment has been added to the DC105.  This method is currently undergoing an ASTM round-robin. 

• Three new techniques have been added to the PHE200: Repeating Chronoamperometry, Repeating Chronopotentiometry, and Multiple Step Potentiostatic.  While these techniques are different from each other, they all have to do with multiple excitation pulses/steps with response measurements during the pulse.

• Beginning with Version 5.21 support for the Reference 600's new "Low Impedance Cell Cable Kit" (990-239) was added. This new cell cable gives increased EIS accuracy for low impedance cells, such as fuel cells and batteries.

• We have added a new Utilities selection to the Experiment Menu.
  
  This new section contains the links to Instrument Calibration, as well as measurement of Open Circuit Potential and  measurement of Uncompensated Resistance by a modified EIS method.  A simple Set a Voltage or Set a Current selection has been added to let you simply apply a current or voltage to your cell.  The Utilities selection also allows you to pre-select one of the eight channels of an ECM8 Multiplexer so that you can run a normal (non-multiplexed ) experiment on that cell without having to move any cell cables.
  
  These selections on the Utilities menu are available to all Gamry users. No specific Authorization Code is required.

Echem Analyst^TM Changes

• DC105 DC Corrosion Software
  
  Post-Run iR correction is now available for many of the techniques in the DC105.  This allows the user to correct for a known or assumed Uncompensated Resistance in the cell after the experiment has been run.
  
  A Tafel analysis can now be performed even if the Ecorr has changed from the start of the experiment.
  
  

• PHE200 Physical Electrochemistry and PV220 Pulse Voltammetry Software

  The analysis for Cyclic Voltammetry has been enhanced with the addition of an "Automatic Baseline" selection on the Cyclic Voltammetry menu.  Using this selection will automatically draw a baseline through the linear background immediately preceding the peak and recalculate the peak height using this baseline.

  A new option on the Tools/Options/Units tab allows the user to display current with either the Anodic Current is Positive or the Cathodic Current is Positive convention. The convention in place when the experiment was run is taken into account.
  
  Post-Run iR correction is available for Cyclic Voltammetry.

• EIS300 Electrochemical Impedance Spectroscopy

  Two new selections have been added to the Impedance menu: Subtract Impedance and Kramers-Kronig.  

  The Subtract Impedance selection allow you to subtract a circuit element (R, C, etc.), an equivalent circuit model, or previously measured spectrum from your data set.

  The Kramers-Kronig selection uses the K-K Transform of your data to calculate the spectrum of a Linear, Stable, and Causal circuit. No model is assumed. The K-K Transform is shown on the Bode and Nyquist plots. If the K-K Transform and the experimental data do not agree, then the sample may exhibit non-linearity, instability, or the influence of unknown variables (non-causal).

  A script "EIS Model Simulation Script.GScript" has been added to allow you to simulate the EIS results for any Equivalent Circuit Model.  You can easily change the parameter values and see the results.  You may also fit these simulated results to another model.  This will allow you to answer questions like "Can I tell the difference between two models?" or "What happens if my double-layer capacitance is really a CPE, but I used the Randles model to analyze it?"

  Two Calculators have been added to the Common Tools Menu that allow you to calculate the "True Capacitance" from a CPE model.

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Last revised on Thursday, February 28, 2008