+1-910-695-8884 info@scribner.com HOME PRODUCTS SOFTWARE RESOURCES CONTACT US ABOUT US MMA Model 900 / 910 Home Products MMA Model 900 / 910 Scribner Associates Model 900/910 Multichannel Microelectrode Analyzer (MMA) is designed for use with microelectrode arrays with up to 100 electrodes. Applications include corrosion science, inhibitor and coating performance studies; current distribution and electrode interaction effects; chemical and biologic sensor arrays; as well as combinatorial electrochemistry and high-throughput materials evaluation such novel electro-catalyst discovery. Experiments include potentiostatic, voltage scanning (e.g., CV), step-stair, as well as electrochemical impedance spectroscopy. Controls are provided for the internal potentiostat to set the applied potential of the working electrodes as well as offset potential for groups of electrode segments. The instrument is arranged in 10 groups of 10 channels each. Each working electrode channel is connected to a ZRA for inter- and intra-electrode current measurement. Electrometer modules permit the use of reference or ion-selective electrodes (e.g., pH or Ag/AgCl for Cl– concentration) for local environment measurement and mapping. Additional controls are available for temperature control. The instrument control software MMALive™ interface provides real-time display of current and/or potential for each electrode. Samples are updated every 40 ms, presented in the user-configurable display and logged to a simple text file that can be imported into common spreadsheet or graphing programs for offline analysis. A time-stamped snapshot of the entire electrode data can be recorded and movies can be recorded in the included data viewing software MMAView™. Features Typical Applications Specifications Product Support Documents Downloads The Model 900 MMA is equipped for 100 channels of current measurement with sensitive zero resistance ammeters (ZRAs) and/or electrode potential measurement with high input-impedance electrometers. The Model 910 MMA Includes a Frequency Response Analyzer (FRA) for Electrochemical Impedance Spectroscopy (EIS) 1 mHz – 1- kHz. An on-board microprocessor-based data acquisition system with 16-bit resolution provides wide dynamic range and low-noise current and potential measurement. A built-in potentiostat provides polarization control of the electrode array with a common counter and reference electrode. Offset polarization of electrode segment groups is possible. Traditional DC electrochemistry such as Potential Scans, Square Waves, or Cyclic Voltammetry may be performed on either the entire array, or on subset of electrodes. Combination arrays of reference and working electrodes are possible by mixing the signal conditioning group electronics. Windows graphical interface provides for real-time display of current and/or potential for each electrode. Scribner Associates Inc Scribner is a leading developer of high-quality instrumentation and software for the electrochemical research and development community. Scribner Associates’ hardware and software products are used by academic, private and government laboratories in the areas of fuel cell development and evaluation, battery and redox flow cell technology, corrosion science and engineering, electrochemical sensors and multi-electrode arrays. 150 East Connecticut Avenue Southern Pines, North Carolina, USA 28387 +1-910-695-8884 +1-910-695-8886 info@scribner.com © 2017 Scribner Associates Inc. Designed and Developed by Key Solutions.