885/890 Potentiostat for Electronic Loads 890 series


Scribner Associates


Specifications:885 Potenciostato 885 Potenciostato de pilas de combustible para la serie 890


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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.

✓ 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.

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