Model 1280C Potentiostat/Galvanostat with built-in FRA
The Model 1280Z Electrochemical Test System offers a high accuracy,
wide bandwidth potentiostat / galvanostat and a frequency response analyzer (FRA) in a single compact
unit.
Measurement Integrity
Central to the measurement capability of 1280Z are two high resolution
digital voltmeters which provide simultaneous voltage and current measurements. Using Solartron’s
patented pulse width conversion technique, they have high accuracy, stability and linearity throughout the
entire range of the instrument.
The 1280Z has excellent measurement resolution and accuracy down to 1μV
for the reference electrodes and 1pA
for the working electrode, which makes it an ideal choice for measurements
where signal levels are extremely low.
The 1280Z uses floating measurements on all connections: it is equally at home measuring corrosion
rates on grounded oil pipelines as it is in the laboratory. For safety reasons, it
is often necessary to ground laboratory
equipment such as autoclaves, a major problem if your instrumentation is not
capable of floating measurements.
The 1280Z offers complete flexibility for cell connection: 2-, 3- or 4-terminal measurements can be made
with equal ease.
- 2-terminal techniques for general materials / electrochemical testing
- 3-terminal techniques for corrosion / coating applications
- 4-terminal techniques for accurate characterization of batteries and
fuel cells, enabling lead resistance and impedance effects to be
minimized
Applications
The 1280Z is used in numerous electrochemical and materials based
research and development fields including:
- Corrosion and inhibitor studies
- Sensor research
- Battery / fuel cell development
- Electrosynthesis / electrodisposition
- Civil engineering, concrete / metals
- Dielectric materials, LCDs / ceramics / polymers
- Bioanalytical research, plants / soils Impedance
Electrochemical Impedance Spectroscopy (EIS) is widely used to enhance the information about reaction
mechanisms available from DC techniques. 1280Z was designed to carry out both DC and impedance (AC)
tests, providing a complete measurement solution. Solartron FRAs use a single sine
correlation algorithm which offers
excellent noise and harmonic rejection. The technique is particularly powerful
for electrochemical applications since
signal levels are usually very low (of the order of millivolts), and are
inevitably buried in noise. With the 1280Z it is possible to characterize
cells over a wide range of impedance.
When making high frequency impedance measurements, Solartron’s driven shield technology minimizes the
unwanted effects of cable impedance enabling 1280Z to be used over a
1mHz to 20kHz frequency range.
Electrochemistry Software
CorrWare and ZPlot packages are specifically designed to run a wide
range of electrochemical tests including:
- Impedance
- Step / pulse techniques
- Cyclic voltammetry
CorrWare and ZPlot are an ideal tool for corrosion analysis, battery / fuel
cell research, and general electrochemistry. The software provides, real-time analysis, multiple
display formats and curve fitting routines.
Specifications
| Measurement
Configurations |
|
Cell connections |
2-, 3- or 4-terminal, all
floating |
|
Working electrode current
measurement resistor (Rs) range: |
0.1 Ω to 1 MΩ |
|
|
Full scale current ranges |
2 A to 200 nA, max. resolution
1 pA |
|
|
Limit of error: |
0.1% ±0.05% of range |
|
|
Counter electrode output voltage,
wrt LO: |
>±20 V |
|
|
current, subject to thermal
protection limits: |
2 A |
|
|
Slew rate, potentiostatic control: |
>10 V/µs |
|
| Reference Electrodes |
|
Input impedance: |
>10 GΩ |
|
|
Input capacitance: |
50 pF |
|
|
Max. resolution |
1 µV |
|
|
Limit of error: |
0.1%±100 µV |
|
| DC Polarization Voltage |
|
Range |
±14.5 V |
|
|
Limits of error: |
V<3.2 V: 0.2%±200 µV
V>3.2 V: 0.2%±2 mV |
|
|
Max. resolution: |
100 µV |
|
|
Current range: |
±2 A |
|
|
Limit of error: |
0.2% ±0.1% of range |
|
|
Max. resolution: |
100 pA |
|
| DC Sweep Capability |
|
Type |
analog ramp ramp rate (voltage): 10 µV/s to
100 V/s |
|
|
Segment duration: |
10 ms to 105 s |
|
|
Stepped ramp step height: |
5 µV/5 pA to 29 V/4A |
|
|
Step duration: |
10 ms to 105 s |
|
| AC Polarization |
|
Waveform |
Sine |
|
|
Frequency range |
1 mHz to 20 kHz |
|
|
Frequency resolution: |
1 part in 4000 |
|
| |
Resolution: |
5 mV |
|
|
Amplitude ranges |
0 to 10 V peak: 10 mV resolution, 0 to
100 mV peak: 100 μV resolution |
|
|
Distortion |
<1% |
|
|
Integration time |
0.1 to 105 s |
|
| Interfaces |
|
|
GPIB (IEEE-488) |
For instrument control |
| Power Requirements |
|
|
Voltage |
90 to 110V, 108 to 132V, 198 to
242V, 216 to 264VAC |
|
Frequency |
48 to 65 Hz |
|
Power |
< 240 VA |
| Dimensions |
|
|
Width |
437 mm (17.2") |
|
Depth |
457 mm (18 ") |
|
Height |
198 mm (7.8") |
| Weight |
18.5 kg (41 lbs) |
| Operating
Temperature Range |
0 to 50ºC (32 to 122ºF) |
|