Gamry Reference 600+, Руководство оператора

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9
Chapter 2: Introduction
About this Manual
This manual covers the installation, safety, and use of the Gamry Instruments Reference 600+
Potentiostat/Galvanostat/ZRA.
This manual describes use of a Reference 600+ with Revision 7.0 (and later revisions) of the Gamry
Framework software. It is equally useful when setting up a newly-purchased potentiostat or modifying the
setup of an older potentiostat for use with new software.
Chapter 1 was an in-depth discussion of safety issues. This chapter describes this manual and gives a brief
overview of the Reference 600+ features. Chapter 3 is a description of the electronic circuitry in the
Reference 600+. Chapter 4 contains Reference 600+ installation instructions. Chapter 5 describes cell
cable-connections and Chapter 6 describes the Reference 600+
’s front and rear panels. Chapter 7 covers
the difficult issues of potentiostat stability and approaches to prevent oscillation. Chapter 8 discusses the
realities of low-current, high-impedance measurements.
Dry technical material such as specifications and connector pin-outs is in the Appendices.
This manual does not discuss software installation or software operation in any detail.
Software support for the Reference 600+ is described in the Gamry Framework’s Help system.
All the Gamry Instruments’ applications running under the Gamry Framework control the Reference 600+
via a PSTAT object. See the Framework Help system for information concerning PSTAT objects and their
functions.
About the Reference 600+
The Reference 600+ Potentiostat is a research-grade electrochemical instrument packaged in a small,
easy-to-handle case. It offers measurement capabilities similar to instruments that are more than ten times
its size and weight and more than twice its price. The Reference 600+ can operate as a potentiostat, a
galvanostat, or a ZRA (zero-resistance ammeter).
Reference 600+ features include:
•
Eleven-decade current auto-ranging,
• Electrical isolation from earth ground,
• Current-interrupt
iR
compensation, and
•
Both analog and digital filtering.
A sine-wave generator on the Reference 600+ allows its use for impedance measurements at frequencies
up to 5 MHz. Data can be acquired at frequencies up to 300 000 points per second, allowing cyclic
voltammetry at scan rates of 1500 V/s with a resolution of 5 mV per point.
A unique DSP (Digital Signal Processing) data-acquisition mode allows the Reference 600+ to reject noise
from the instrument itself, from the electrochemical cell, and from the lab environment. In many cases
where other instruments require a cell in a Faraday shield to make quiet measurements, the Reference
600+ can be used with the cell exposed on a bench top.
The Reference 600+ offers an unprecedented combination of high speed, high sensitivity, and low noise.
At the time this is written, the Reference 600+ offers the widest EIS performance area (in a plot of
impedance versus frequency) of any Potentiostat. State-of-the-art analog components were used
throughout the design. In all design decisions, performance weighed more heavily than product cost.