857 ELECTROCHEMICAL FLOWBENCH
The 857 Electrochemical Flowbench is a turnkey, fully-integrated, chemistry agnostic instrument for recirculation of highly corrosive acids and bases.
Whether you’re a university research lab, a startup innovating new chemistries, or an industrial R&D group, the 857 delivers unmatched flexibility, accuracy, and ease of use.
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:
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- 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.
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- 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:
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- 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.
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- 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.
Inside the System
SPECIFICATIONS
- 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
- 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
- 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)
- 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
Included with every Scribner is a set of parts and tools for installing the instrument. Specifically, each 857 includes;
- Tools
- 2 wrenches, 1/2″ & 9/16″, for common fittings
- Document Folder
- USB drive with documentation and software
- Calibration information
- Pump user manual
- Cabling
- 9-Pin connector connecting 892 to Controller
- Country specific power cords bringing wall power to each unit x3
- USB cable connecting Controller to Computer
- External alarm cable for integrating additional alarm signals into Controller
- Flow bench controller ribbon cable
- Controller cell cable
- Components
- Stir bars x2
- PFA coated thermocouples x2
- Extra Parts
- 7 Type T Thermocouple connectors for adding thermocouples to 892 and cell
- 6 Analog circular connectors for adding sensors to 892
- Cell heater adapter for using other commercial heaters through Controller
- Swagelok nuts and ferrules for gas ports x3
- Alligator clips x6
- ¼” nuts, bolts, and washers for bus bars x2
exTERNAL Sensors
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.
The 857 Flowbench now include additional Scribner’s 892 Data Expansion Module offering an additional 8 thermocouple and 8 analog sensor inputs! The Flowbench uses some inputs natively and leaves 6 ports each for expansion.
PRODUCT DOCUMENTS
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.
PROTON EXCHANGE MEMBRANE
HIGH-PRESSURE ELECTROLYSIS
ANION EXCHANGE MEMBRANE
PEM Electrolyzer Cell Fixture offers superior performance for water electrolysis, with convenient porting, electrical heating, customizable materials and flow fields.
50 Bar Capable. Available in Aluminum Stainless Steel, and Nickel 200 End-Plates, as well as a wide range of Flow Field materials and patterns.
AEM Electrolyzer Cell Fixture offers customizable materials and geometries for chemical resistance and usability. Fluid can be routed directly into flow field or through end plate.
customize your 857: accessories for smarter science
Optimize your test environment with modular accessories engineered for seamless integration with the 857 Electrochemical Flowbench. These tools support advanced diagnostics, automated workflows, and scalable configurations for high-performance fuel cell research.
YOUR PARTNER IN SCIENCE, FROM START TO BREAKTHROUGH
Turnkey Consumables & Integrations
Scribner sources essential consumables and compatible equipment—membranes, sensors, and more—to simplify and support your research workflow.
Professional Installation & Training
Our expert electrochemists provide on-site system setup, commissioning, and user training to ensure confident, efficient operation from day one.
Service, Repair & Calibration
From fast tech support to on-site calibration and factory repairs, Scribner keeps your system running smoothly with reliable service and stocked parts.
Ongoing Support & Warranty Protection
Stay current with software updates, application notes, and optional extended warranties for long-term peace of mind.
TRUSTED BY PUBLISHED RESEARCHERS WORLDWIDE
let’s power your next discovery together
Whether you’re evaluating a new system, troubleshooting in the lab, or exploring collaboration opportunities, our team is ready to help — wherever you are in the world. Fill out the form below and let’s talk innovation!