885/890 Potenciostato para Cargas Electrónicas la serie 890


Scribner Associates


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


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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