850 Fuel Cell Test System

The model 850 Multi-Range Fuel Cell Test System is a complete test station for operation and measurement of PEM/DMFC fuel cells. The 850 is ideal for single-cell and short-stack fuel cell research and university programs.

The 850 combines a computer-controlled instrument with fuel handling hardware in an integrated bench-top unit. The 850 uses the proven 890 as the basis for the electronic load design. The powerful FuelCell® software package is included for controlling station operation.

Features

• Multiple current range electronic load choices: 5/25/50 A or 10/50/100 A, 100 W, 20 V
• Suitable for up to 50 cm2 PEM cells.
• FuelCell^® software for user-friendly computer controlled cell operation & experimentation
• Temperature controlled high performance 316L stainless steel humidifiers, and heated gas transfer lines
• Computer control of anode and cathode mass flow rates
• Automatic control of N₂ purge gas to cell
• Detection of pressure loss for reactant and purge gasses
• Current, voltage or power control modes
• Continuous real time cell resistance and IR-free voltage measurement by Current Interrupt
• Whole cell voltage plus two high-impedance reference inputs for half-cell data
• Cell main terminals and sense inputs tolerant of a non-isolated cell
• Automatic Water Fill for humidifiers
• Safety features include detection of alarm conditions and automatic hardware

Specifications

Electronic Load:
Maximum Load Current	5/25/50 A or 10/50/100 A (configuration dependent)
Maximum Load Power	100 W
Minimum Load Resistance	< 2 mΩ (100 mV @ 50 A at load terminals)
Current Resolution	1 mA for 5/25/50 A; 10 mA for 10/50/100 A
Current Accuracy	0.3% of full scale current of selected range
Voltage Measurement and Data Acquisition:
Max . Whole Cell Voltage	20 V
Max . Reference Electrode Voltage	9.999 V
Voltage Resolution	1 mV
Voltage Accuracy	±3 mV ±0.3% of reading
Voltage & Current Data Update Rate	100 Hz
Whole Cell Sense Input Resistance	> 35 kΩ
Reference Electrode Input Resistance	> 10⁹ Ω
Impedance Analyzer (Optional 881):
Internal Impedance Analyzer Type	Single sine, one generator and two gain/phase measurement channels
Internal Analyzer Frequency Range	1 mHz to 10 kHz
Measurement Channels	Three: whole cell plus two half cell vs. Reference Electrode
Temperature Controllers	Three: cell, anode humidifier, cathode humidifier
Set & Report Accuracy	±0.25% of span, ±1 least significant digit
Sensor Type	Thermocouple, Type T for cell (Type K optional for high temperature)
Humidifiers	Dual sparger-type, passivated 316L, 360 W heaters per bottle
Temperature Range	Ambient to 99 ° C; Optional: 120 ° C
Environment:
Operating Temperature	5 to 35 ° C
Power Source	120 V, 50-60 Hz, 10 A (Export model 220-240 V, 50-60 Hz, 5 A)
Enclosure Type	Single bench top enclosure
Size and Weight ( H x W x D)	18” x 11” x 19” (+ 11” for heated gas lines);
Size and Weight ( H x W x D)	50 lb .46 cm x 28 cm x 48 cm (+ 28 cm); 23 kg