Scribner Associates extends its groundbreaking line of tabletop fuel cell testing equipment with the 885 Fuel Cell Potentiostat. The 885 bolts directly to SAI's 850e Multi-Range Fuel Cell Test Systems or 890e / 890C / 890ZV Fuel Cell Test Loads (different form-factors), offering an easy, efficient testing platform that delivers. Streamline your testing while delivering real results with Scribner Associates' fuel cell test systems.


New - the SAI 885 potentiostat

✓ Perform Automated Experiments within FuelCell®

✓ No Need to Swap Cell Leads to Use Potentiostat Functions

✓ Voltammetry for In-Situ Fuel Crossover & Electrochemical Surface Area Measurement

✓ Potentiostatic Mode for Electrode and Catalyst Support Durability Test

✓ Fine Current Resolution for High Accuracy Tafel Experiments

✓ Quick & Easy Installation

✓ Data Analysis with FCView and CorrView




• Integrated Potentiostat for 850 Series Fuel Cell Test Systems / 890 Series Fuel Cell Test Loads
• 3 Current Ranges for Maximum Flexibility and Current Accuracy
• Sweep Function for CV and LSV Measurements
• Automated Switching between Load and Potentiostat Operation
• Combine with the 850 Auto Multigas Unit for Automated Gas Input Switching





Cell Connections   2, 3 or 4 terminal

Working Electrode
Current Ranges  2 A, 200 mA, 20 mA
Resolution   122 µA (2 A FS) to
1.22 µA (20 mA FS)

Counter Electrode
Output Voltage vs. WE  ±3 V
Current   ±2 A
(short circuit protected)

Reference Electrode
Type    Differential w/ driven shields
Input V range   -3 to +3 V
Differential Input  -3 to +3 V
Resolution   152 µV
Capacitance   150 pF
Limit of Error   0.3% of reading + 3 mV

DC Polarization
Voltage Range  -3 V to +3 V
Limit of Error   0.25 %
Resolution   125 µV

Sweep Functions
Scan Rates   1 mV/sec to 1 V/sec

Data Acquisition Speed  10 points/sec


885 Potentiostat - Performance Graph 1
Figure 1: PEM fuel cell hydrogen crossover acquired by linear sweep voltammetry using Scribner’s 885 Fuel Cell Potentiostat (red) and a commercial potentiostat (black). The small dip in current near 0.4 VRE is a feature of the fuel cell. Test conditions given in figure.

885 Potentiostat Perfomance Graph 2
Figure 2:
PEM fuel cell cyclic voltammetry data using Scribner’s 885 Fuel Cell Potentiostat (red) and a commercial potentiostat (black). Cyclic voltammetry is used for in-situ electrochemical active surface area characterization of PEM fuel cell electrodes. Conditions given in figure.

Download the 885 Fuel Cell Potentiostat Data Sheet

NEW! Application Note: Automated H2 crossover and ECSA testing with Scribner Associates' 850 Series Test Systems

NEW! Application Note: 885HS for Pulse Voltammetry

NEW! Application Note: Using an 850e, 885 PSTAT and BekkTech BT-112 Conductivity Cell for in-plane membrane resistance and conductivity measurement

CorrView can read FuelCell (.fcd) data files. CorrView if is particularly helpful for 885 users that want to use its integration function to analyze their CV data.

Scribner Associates Inc.

Is a leading developer of high-quality instrumentation and software for the electrochemical research and development (R&D) community. Scribner Associates’ hardware and software products are used by academic, private and government laboratories in the areas of fuel cell development and evaluation, battery and redox flow cell technology, corrosion science and engineering, electrochemical sensors and multi-electrode arrays.

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  150 East Connecticut Avenue
      Southern Pines, North Carolina, USA 28387