Our ultra-high impedance electrode interfacing hardware and software are here joined to a precision current source-sink to enable flexible voltammetry.
With a four-electrode system, current and voltage are completely independent. With three electrodes, behavior is still close to ideal. Excel® handles the
control of the system. Voltage can be set to a desired point, or current can be set. In either voltage or current control mode the setpoint is entirely
programmable. Linear ramp, stepped ramp, square wave, alternate polarity steps, cyclic controls, or arbitrary waveform control can be done in either voltage
or current mode. The voltage range is +/- 5 volts and the current injection range is +/-100 uA. Current setting is resolved to the nanoamp and voltage is
resolved to within a few microvolts.
The Voltammetry Excel® spreadsheet template provided represents a different approach to instrumentation. Other virtual instrumentation products are expensive
and hard to learn. This template is free, and if you are familiar with Excel®, you already know how to get started. You can make the spreadsheet look like an
existing instrument, or make it into something entirely different using the powerful combination of acquisition, analysis, and presentation capabilities.
Up to ten systems can run concurrently in one spreadsheet. The user can modify the spreadsheet template for their desired application, or, changes can be
requested from Lawson Labs. In either event, generous support is provided to get started.
Up to 6 electrodes can be added with the addition of an EMF6. Those 6 extra channels would appear on a separate sheet in the workbook. Up to 9
EMF6s can be accomodated for 55 total channels.
See the Lawson Labs EMF6 for other specifications.
