Model 1100A Series
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The Model 1100A series power potentiostat/galvanostat is designed for electrochemical applications that require relatively large current and high compliance voltage, such as battery, corrosion, electrolysis, and electroplating. The current range is ± 2 A. The compliance voltage is ± 26 V. The instrument contains a digital function generator, a data acquisition system, filters for the current signals, iR compensation circuitry, a potentiostat, and a galvanostat (Model 1140A). The potential control range is ± 10 V. The 1100 series is capable of measuring current down to tens of picoamperes. The steady state current of a 10 mm disk electrode can be readily measured without external adapters. The instrument is reasonably fast. For instance, the scan rate in cyclic voltammetry can be up to 1000 V/s. Multiple data acquisition systems allow an external input signal (such as spectroscopy signals to be recorded simultaneously with electrochemical data).
The model 1100A series is the upgrade from the model 1100 series. The redesigned instrument contains a new processor (about 50 times faster than the 1100) and FLASH memory (allowing instrument updates to be distributed by e-mail instead of the shipment of an EPROM chip). The maximum sampling rate is 200 KHz.
The 1100A series has a serial port (default) and a USB for data communication with the PC. You can select either serial port or USB (but not both) by changing the jumper setting on the board.
A 16-bit highly stable bias circuitry is added for current or potential bias. This allows wider dynamic range is ac measurements. It can also be used to re-zero the dc current output.
There are some other improvements. New techniques, such as AV Voltammetry (ACV), Second Harmonic AC Voltammetry (SHACV), Multi-Current Steps (ISTEP) have been added to the model 1100A series. ISTEP allows cycling through 12 current steps. Multi-Potential Steps (STEP) also allows cycling through 12 potential steps (cf. 6 steps in model 1100 series).
Specifications
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Potentiostat Galvanostat (Model 1140A) Potential range: -10 to 10 V Potentiostat rise time: < 2 ms Compliance voltage: ± 26 V 3- or 4-electrode configuration Current range: ± 2 A Reference electrode input impedance: 1´1012 ohm Sensitivity scale: 1´10-12 - 0.1 A/V in 34 ranges Input bias current: < 100 pA Current measurement resolution: < 1 pA Potential update rate: 1 MHz Data acquisition: 16 bit @ 200 kHz External voltage signal recording channel External potential input Automatic and manual iR compensation Potential and current analog output RDE control voltage output: 0-10V (1130 and up) |
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CV and LSV scan rate: 0.000001 to 2000 V/s Minimum potential increment during scan: 0.1 mV CA and CC pulse width: 0.001 to 1000 s CA and CC Steps: 320 DPV and NPV pulse width: 0.001 to 10 s SWV frequency: 1 to 10 kHz Automatic potential and current zeroing Signal low-pass filters, covering 8-decade frequency range, Automatic and manual setting Potential and current analog output Cell control: purge, stir, knock Automatic potential and current zeroing Current low-pass filters, covering 8-decade frequency range, Automatic and manual setting Flash memory for quick software update Serial port or USB selectable for data communication Maximum data length: 128K-4096K selectable Chassis dimension: 12.5”(W) ´ 11”(D) ´ 4.75”(H) Weight: 18 Lb. |
Differences Between 1100A Series Models
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Fu nctions |
1100A |
1110A |
1120A |
1130A |
1140A |
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Cyclic Voltammetry (CV) |
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Linear Sweep Voltammetry (LSV) & |
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Staircase Voltammetry (SCV) #,& |
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Tafel Plot (TAFEL) |
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Chronoamperometry (CA) |
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Chronocoulometry (CC) |
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Differential Pulse Voltammetry (DPV) #,& |
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Normal Pulse Voltammetry (NPV) #,& |
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Differential Normal Pulse Voltammetry (DPNV)#,& |
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Square Wave Voltammetry (SWV) & |
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AC Voltammetry (ACV) #,&,$ |
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2nd Harmonic AC Voltammetry (SHACV) #,&,$ |
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Amperometric i-t Curve (i-t) |
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Differential Pulse Amperometry (DPA) |
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Double Differential Pulse Amperometry (DDPA) |
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Triple Pulse Amperometry (TPA) |
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Bulk Electrolysis with Coulometry (BE) |
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Sweep-Step Functions (SSF) |
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Multi-Potential Steps (STEP) |
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Chronopotentiometry (CP) |
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Chronopotentiometry with Current Ramp (CPCR) |
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Multi-Current Steps (ISTEP) |
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Potentiometric Stripping Analysis (PSA) |
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Open Circuit Potential - Time (OCPT) |
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Galvanostat |
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RDE control (0-10V output) |
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Full version of CV simulator |
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Limited version of CV simulator |
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iR Compensation |
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External Potential Input |
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Auxiliary Signal Measurement Channel |
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#: Corresponding polarographic mode can be performed.
&: Corresponding stripping mode can be performed.
#: Corresponding polarographic mode can be performed.
&: Corresponding stripping mode can be performed.