CHI Instruments CHI1030B

CHI1030B instrument is a computerized eight-channel potentiostat. The system contains a digital function generator and multiplexed data acquisition circuitry. The multi-potentiostat can work with eight independent cells or eight working electrodes in the same solution with common reference and counter electrodes. The potential control range is ±10 V for all channels and the current range is ±10 mA. The instrument is capable of measuring current down to picoamperes. Each electrode can be individually controlled, including on/off control, potential, and sensitivity settings; each can be set to an independent potential or the same potential as the primary channel, so that they can sweep or step potentials together with the primary channel.

CHI Instruments CHI1030B
Typical measurement of the time dependence of the current

Many electrochemical techniques are available, including cyclic voltammetry and amperometric i-t measurements, with all eight channels available (except for open circuit potential measurements). The parameters for all channels must be set before running an experiment; you cannot alter parameter settings during experiments. During a run, you can toggle between single and multi-data set display (parallel or overlay plots). After a run, you can choose data from any channel for parallel or overlay plotting.

CHI Instruments CHI1030B
Cyclic voltametric and amperometric measurements

Applications:

  • Array electrode characterization and sensor studies
  • It can be used for eight independent cells or for eight working electrodes in a same solution

Specifications:

8-Channel potentiostat

  • (8 independent cells or a multi-working electrode cell)
  • Potential range (all channels): ±10 V
  • Applied potential accuracy: ±1 mV, ±0.01% of scale
  • Potentiostat rise time: < 2 μs
  • Applied potential noise: < 10 μV rms
  • Potential control noise: < 10 uV
  • Compliance voltage: ±12 V
  • Current range (each channel): 10 mA
  • Reference electrode input impedance:  1x1012 ohm
  • Sensitivity scale: 1x10-9 - 0.001 A/V in 7 ranges
  • Minimum current resolution:  0.0015% of current range, minimum 0.3 pA
  • Input bias current:  < 50 pA
  • Fast waveform update: 5 MHz @ 16-bitast data acquisition: up to 1 MHz @ 16-bit
  • Fast data acquisition: up to 1 MHz @ 16-bit

CV and LSV scan rate:

  • 0.000001 to 5000 V/s (sequential scan)
  • 0.000001 to 25 V/s (8 channel simultaneous scan)
  • Potential increment during scan: 0.1 mV @ 1,000 V/s

CC and CA pulse width:  0.0001 to 1000 s

CA and CC sample interval:

  • 1e-6 to 50 s (sequential step)
  • 8e-5 to 50 s (8 channel simultaneous step)

DPV and NPV pulse width:  0.001 to 10 s

SWV frequency:

  • 1 Hz to 100 KHz (sequential scan)
  • 1 to 3125 Hz (8 channel simultaneous scan)

ACV frequency:

  • 1 to 10000 Hz (sequential scan)
  • 1 to 312 Hz (8 channel simultaneous scan)

SHACV frequency:

  • 1 to 5000 Hz (sequential scan)
  • 1 to 250 Hz (8 channel simultaneous scan)

FTACV frequency: simultaneously acquire 1st, 2nd, 3rd, 4th, 5th, and 6th harmonics ACV data

  • 0.1 to 50 Hz (sequential scan)
  • 0.1 to 34 Hz (8 channel simultaneous scan)

i-t sample interval:

  • 1e-6 to 100 s (sequential scan)
  • 8e-5 to 100 s (8 channel simultaneous scan)

Current low-pass filters

Current analog output

Cell control: purge, stir, and knock

Maximum data length:  128K - 4096K selectable

Contact:

Gabriela Figueroa Miranda
 Tel.:  +49-2461-61-3895
e-mail: g.figueroa.miranda@fz-juelich.de

Dr. Dirk Mayer
Tel.:  +49-2461-61-4023
e-mail: dirk.mayer@fz-juelich.de

Last Modified: 19.05.2022