857 ELECTROCHEMICAL FLOWBENCH
Designed for both aqueous and non-aqueous systems, the 857 delivers reliable performance across the full spectrum of electrochemical applications — from alkaline electrolysis and redox flow batteries to separations, critical mineral recovery, and wastewater recovery research. With integrated high-current potentiostatic control, electrochemical impedance spectroscopy (EIS), state-of-charge sensing, and cell inlet electrolyte flow & temperature control, the 857 lets you focus on insights, not instrumentation.
ADVANCED DIAGNOSTICS
Push your research further with the 857’s next-generation diagnostic capabilities. Designed for precision and scalability, the system delivers comprehensive electrochemical characterization across its full 100 A current range:
- High-Resolution Measurements, Seamless Control — An automated switch between the integrated 20 A potentiostat and 100 A power supply ensures you capture every data point, from delicate half-cell studies to full-scale system testing. Electrochemical Impedance Spectroscopy (EIS) and High-Frequency Resistance (HFR) measurements remain consistent and reliable across the entire current range, enabling faster analysis and deeper understanding of your cell performance..
- Smarter Data. Greater Flexibility. — Expanded data collection and external sensor integration give you the freedom to monitor more than just voltage and current. Incorporate temperature, flow rate, or custom analog inputs with ease — all synchronized through our FlowCell™ software for a complete picture of your experiment. Half-cell voltage tracking and state-of-charge monitoring add further insight into cell behavior, so you can refine designs and accelerate breakthroughs.
ENHANCED BALANCE OF PLANT. DESIGNED FOR REAL-WORLD OPERATION.
The 857 isn’t just powerful — it’s practical. Every aspect of its balance-of-plant system has been refined to simplify operation, improve reliability, and deliver repeatable results across long test cycles:
- Intelligent Temperature & Flow Control — Maintain precise thermal and flow conditions from low to high rates with automated feedback control that responds in real time. Temperature compensation software ties flow rate to heat exchanger power delivering electrolyte at the cell +/- 1C from command.
- Engineered for Ease & Safety — A fully inert plumbing system with upgraded tubing and secure connections protects sensitive chemistries, while simplified feedstock bottles in multiple sizes streamline setup and maintenance. Add a customizable heat exchanger and ergonomic layout, and you have a testing platform built for both high performance and everyday usability.
INTUITIVE CONTROLS. SMARTER SOFTWARE.
Experience total control with software designed by electrochemists, for electrochemists. The 857’s FlowCell-ETS® platform brings every function — experiment setup, control, sequencing, and real-time graphing — into one seamless, user-friendly interface. Create complex test routines, monitor live performance data, and visualize results with just a few clicks in FCView®.
For deeper analysis, the system integrates directly with ZView®, the industry’s gold standard for impedance analysis and equivalent circuit modeling.
Together, they form a powerful software suite that simplifies the complex — letting you focus on the science, not the setup.
SPECIFICATIONS
ELECTRICAL
- Power Supply Max Current – 100 A
- Voltage Range – 0 – 5.000 V
- Maximum Power – 500W
- Potentiostat Current Ranges – ±20 / 7 / 0.7 / 0.07 A
- Current Resolution – 0.007% of range
- Current Limit of Error – ±1.0% of range
- Set & Read Voltage – > ±5.000 V
- Cell Voltage Sense Lead – Differential
- Voltage Measurement Resolution – 152 μV
- Sense Lead Input Resistance – 1.0 GΩ
- Modes of Operation – Constant, Scan, Step-Stair (Voltage & Current)
- Impedance Frequency Range – 1 mHz – 10 kHz (Power Supply); 1 mHz – 40 kHz (Potentiostat)
- Impedance Measurement Types – Sweep EIS and Single-Freq HFR; Real-Time Measurement; Whole Cell and Aux / Half / Reference
CELL & ELECTROLYTE HANDLING
- Wetted Parts- Standard PFA & Ni200
- Chemical Compatibility – Weak acids (pH ~2 NaCl) to strong bases (~10 M NaOH, KOH)
- Feed Stock Reservoir – 2 × PFA, Removable
- Feed Stock Reservoir Sizes – 250 mL, 500 mL, or 1 L
- Feed Stock Agitation – 2 × Stir Plates
- Feed Stock Supply Pump – 1 – 100 mL/min
- Flow Path – Independent Anode & Cathode
- Back Pressure Rating – 1.5 barg (22 psig)
- Purge Gas – 2 × N₂ rotameters (manual)
- Cell Temperature Range – Ambient – 120 °C
- Cell Connection – 4-Terminal (I+, I–, V+, V–) & Differential Aux (REF)
- Custom Heat Exchanger Materials – Ni200, C22, Ti, or 316 SS
- Additional Data Acquisition – 6 thermocouples and 8 analog inputs
PHYSICAL
- Operating Temperature – 5-35º C
- Power Source – 100-120 or 220-240 VAC 50/60 Hz
- Size (excluding tubing connections) – 50 cm x 65 cm x 65 cm (20 x 25 x 25 in)
- Weight (empty) – 16 kg (35 lbs)
SAFETY
- Robust – Embedded Firmware Level Decisions
- Fail Safe Design – De-Energize On Alarm Condition
- Continuous Monitoring – E-Stop, Voltage, Current, Temperate, Gas, Contamination & External Signals
- External Alarm – Integrate Full Building E-Stop
- Software Alarm – User Configurable Limits
EXTERNAL SENSORS
ALL APPLICATIONS
Cross Over monitoring of H2 in O2 & O2 in H2. Programable detection levels of product as they approach an unsafe ratio.
Mass Spectroscopy for real time in-situ product analysis.
PRODUCT DOCUMENTS
ACCESSORY DOCUMENTS
Download the latest FlowCell® software
Download a list of papers referencing the 857 system Please, contact Scribner if you would like a copy of any of these papers.
PRECISION IN THE DETAILS
Enhance your lab setup with accessories and cell fixtures designed for accuracy, repeatability, and ease of use. These add-ons ensure optimal performance, tailored configurations, and seamless integration with your core system—because every detail matters.
SAFETY SENSORS O2 in H2
Continuous Monitoring of Hydrogen gas in the Oxygen gas stream. Programable detection levels of product as they approach an unsafe ratio. Alarm Condition places machine into safe configuration and purges with Nitrogen automatically. GOW Sensor technology leveraging thermal conductivity to make direct comparison to ambient versus feed gas.
SAFETY SENSORS H2 in O2
Continuous Monitoring of Hydrogen gas in the Oxygen gas stream. Programable detection levels of product as they approach an unsafe ratio. Alarm Condition places machine into safe configuration and purges with Nitrogen automatically. GOW Sensor technology leveraging thermal conductivity to make direct comparison to ambient versus feed gas.
YOUR PARTNER IN SCIENCE
Scribner offers a comprehensive range of services designed to support the full lifecycle of your electrochemical test systems. From setup and training to maintenance, calibration, and ongoing support, we’re here to ensure your research runs smoothly and efficiently.
