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Windows 95 does not support USB internally, but some USB drivers have been made as additions to Windows 95. These USB drivers do not
have complete support for the USB port and do not work with PARSTAT instruments.
2
PARSTAT 2273 Hardware User’s Manual
direct methanol fuel cell (DMFC) assemblies. The 2273 together with the entire
Electrochemistry
PowerSuite
package has the potential to take your research to the next level.
Biomedical Applications
— The 2273 exceeds the requirements for potentiostats/galvanostats
as described in ASTM F2129,
Standard Test Method for Conducting Cyclic Potentiodynamic
Polarization Measurements to Determine the Corrosion Susceptibility of Small Implant Devices
.
For implant biocompatibility studies, the most common methods involve DC corrosion
techniques such as cyclic potentiodynamic polarization for the determination of the breakdown
or critical pitting potential (E
b
), the corrosion or open circuit potential (E
corr
), the repassivation or
protection potential (E
p
), corrosion current (I
corr
) and corrosion rates based on Tafel analysis. The
2273 and
PowerCORR
give you all of these tools.
1.2. Booster Interface
Using the 2273 with one of our current booster options provides you with a seamless interface
for our
Electrochemistry PowerSuite
software. When a booster option is connected to the 2273,
the software autoscales the data. The 2273 has three current booster options to choose from:
8A/2273 option for 8 A, 50 V
10A/2273 option for 10 A, 20 V
20A/2273 option for 20 A, 20 V
1.3. Hardware and Software
The host PC provides memory, data processing, input-output, and interface capabilities. The
PARSTAT 2273 electronically controls the measurement under direction of the software and the
parameter values you enter from the host computer. The PARSTAT 2273 is fully compatible with
our
Electrochemistry PowerSuite
family of electrochemistry research and development tools.
While the software operates under all 32-bit Microsoft
®
Windows
®
operating systems, the
PARSTAT 2273 requires a USB interface and runs only under Windows 98 SE, 2000, and XP.
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1.4. Potentiostatic Circuitry
The potentiostatic section of the PARSTAT 2273 circuitry includes:
Two 16-bit digital-to-analog converters (DACs) for versatile waveform generation.
Four 16-bit analog-to-digital converters (ADCs) to measure current, potential, SYNC ADC
INPUT, and the potential for current interrupt.
An onboard microprocessor to perform the experiment defined by the operating software.
Onboard memory to store the programmed parameters and data point values.
The PARSTAT 2273 operates with Electrochemistry PowerSuite in either the potentiostatic or the
galvanostatic mode. The potentiostatic and galvanostatic modes are described below.
1.4.1. Potentiostatic Mode
In this mode, the PARSTAT 2273 controls the potential at the working electrode with respect to
the reference electrode (see Fig. 1). The counter electrode is driven to the potential required
(consistent with the ±100 V compliance of the control amplifier) to establish the desired working
electrode potential. The range over which the working electrode potential can be controlled is
±10 V.
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