Overview

The Model 1100B series power potentiostat/galvanostat is designed for electrochemical applications that require relatively large current and high compliance voltage, such as battery studies, corrosion, electrolysis, and electroplating. The current range is ±2 A, and the compliance voltage is ±25 V. The instrument contains a high speed digital function generator, a fast data acquisition system, filters for current signals, iR compensation circuitry, a potentiostat, and a galvanostat (Model 1140B). The potential control range is ±10 V. The function generator can update at a 10 MHz rate, and the maximum sampling rate is 1 MHz at 16-bit resolution. The 1100B series is capable of measuring current down to tens of picoamperes. The steady state current of a 10 μm disk electrode can be readily measured without external adapters. The instrument provides very wide dynamic range on experimental time scales. For instance, the scan rate in cyclic voltammetry can be up to 1000 V/s with a 0.1 mV potential increment or 5000 V/s with a 1 mV potential increment. The potentiostat/galvanostat uses a 4-electrode configuration, allowing it to be used for liquid/liquid interface measurements and eliminating the effect of the contact resistance of connectors and relays for high current measurements. The data acquisition systems allow an external input signal (such as spectroscopy signals to be recorded simultaneously with electrochemical data).

The model 1100B series is the upgrade from the model 1100/1100A series. The instrument utilizes flash memory, allowing instrument updates to be distributed electronically instead of the inconvenient shipment of an EPROM chip.

The 1100B series has a USB port (default) and a serial port for data communication with the PC. You can select either USB or serial (but not both) by changing a switch setting on the rear panel of the instrument.

16-bit highly stable bias circuitry has been added for current or potential bias. This allows wider dynamic range in AC measurements. It can also be used to re-zero the DC current output.

We provide several different models in the 1100B series. The following table compares the different models. Other than what is listed, the specifications and features of these models are identical. Models 1100B/1110B are basic models, while Model 1140B is a more advanced model with a galvanostat.

Specifications

Potentiostat Galvanostat (Model 1140B) Potential range: -10 to 10 V Potentiostat rise time:  < 2 μs Compliance voltage:  ± 26 V 3- or 4-electrode configuration Current range: ± 2 A Reference electrode input impedance:  1x1012 ohm Sensitivity scale:  1x10-12 - 0.1 A/V in 12 ranges Input bias current:  < 100 pA Current measurement resolution:  < 1 pA Potential update rate:  10 MHz Data acquisition: 16 bit @ 1 MHz External voltage signal recording channel External potential input Automatic and manual iR compensation Potential and current analog output RDE control voltage output:  0-10V (1130B and up)

CV and LSV scan rate:  0.000001 to 5000 V/s Potential increment during scan:  0.1 mV @ 1000 V/s CA and CC pulse width:  0.0001 to 1000 s CA and CC Steps: 320 DPV and NPV pulse width:  0.001 to 10 s SWV frequency:  1 to 100 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 USB or Serial port selectable for data communication Maximum data length:  128K-4096K selectable Chassis dimensions:  14.25”(W) x 9.25 ”(D) ´ 4.75”(H) Weight:  17 Lb.

Chronopotentiometric measurement