890e Electronic Fuel Cell Test Loads

Models 890 is a computer-controlled instrument consisting of multi-range programmable electronic loads, fuel flow and temperature controls, and data acquisition functions, all in a compact rack-mount or bench-top unit for small to medium sized single Cells or low-power stacks in laboratory research.
Adding the 881 Frequency Response Analyzer (FRA) option allows integrated High Frequency Resistance (HFR) and full range Electrochemical Impedance Spectroscopy (EIS) measurements.
The 890 Series is supported by the Scribner 885 Integrated Fuel Cell Potentiostat.

Add the 880 Frequency Response Analyzer (FRA) option for integrated High Frequency Resistance (HFR) and full range Electrochemical Impedance Spectroscopy (EIS) measurement.
The 890 Series is supported by the Scribner 885 Integrated Fuel Cell Potentiostat!

The 890e’s multiple current range capability enhances its versatility and performance over a wide range of test applications and test environments.

-  Electronic load with three current ranges for accurate measurement over a wide dynamic range
-  Control signals for two (2) main mass flow controllers plus five (5) additional mass flow controllers
-  Continuous real-time cell resistance and IR-free voltage measurement by current interrupt
-  Whole cell voltage plus two high-impedance reference electrode inputs for half-cell data
-  Optional internal impedance analyzer for EIS and continuous real-time high frequency resistance (HFR)
-  Simultaneous 3 channel impedance measurement using whole cell and half-cell
-  Cell main terminals and sense inputs tolerant of non-isolated cell
-  Three (3) internal controllers for anode and cathode humidifier and cell temperatures
-  Constant current, voltage or power control mode
-  Contact inputs for three pressure sensors or alarms
-  Low voltage output signal to control purge gas valves and to indicate alarm condition
-  RS485 digital interface for external temperature controllers
-  Safety features include detection of alarm conditions and automatic hardware shutdown for safe, reliable operation

-  Knowledge of systems integration and electrical wiring conventions is required.
-  We may decline to provide 890 systems if there is concern about integration expertise or capability.

-  885 PStat: Fuel Cell Potentiostat
-  881 FRA: Integrated Frequency Resistance Analyzer (FRA) for High Frequency Resistance (HFR) and impedance measurement from 1 mHz to 10 kHz
-  892e Data Acquisition Expansion System:  Additional 8 voltage and 8 temperature inputs
-  Dual Area Cell Fixture: Test fixture for PEM / DMFC
-  Gas Mixing: Gas mixing for reformate simulation or impurities/poisons studies
-  Pump: Pump for liquid reactant fuel cells (+DM)
-  Interface Box: Box for non-integrated fuel system designs