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890ZV SOFC Test Load
890ZV
New
The bench-top Model 890ZV consists of a programmable electronic load, fuel and temperature controls, and data acquisition functions. A built-in power source makes the 890ZV particularly well suited for small single-cell SOFC work for research, laboratory, and educational use.
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The 890ZV is optimized for cost and size, and offers extra hardware features and Scribner Associates’ FuelCell® software.
The 890ZV is typically used with a SOFC fuel cell, a suitable furnace, and a fuel management unit. The 890 Series is supported by the Scribner 885 Integrated Fuel Cell Potentiostat.
- Load system with bucking power source for SOFC high-resistance cell leads
- Remote operation from USB-GPIB interface with Scribner FuelCell® software
- Electronic load with two current ranges: 5 / 25 Amps
- Constant current, voltage, or power control mode
- Current Interrupt (iR) cell resistance measurement
- Whole cell sense voltage input and two high-impedance reference electrode inputs
- Impedance measurement using whole-cell or either reference electrode input
- Automatic shutdown in hardware for over-current, under-voltage, over-power, load temperature and cell / furnace temperature alarm conditions
- Ramping cell/furnace temperature control
- Cell main terminals and sense inputs tolerant of non-isolated cell
- Internal temperature controllers for anode humidifier and cell/furnace temperatures
- Multifunction front panel text display with function select button
- Connector for optional interface box or direct gas management unit connection
- Analog input/output ports for two main gas mass flow controllers, and up to five additional mass flow controllers including anode forming gas mixtures
- Low voltage output signal to control purge gas valves
- Contact inputs for three supply pressure sensors and three auxiliary alarms
- Low voltage alarm output signal to indicate fault condition
- RS-485 digital interface for external temperature controllers
| Specifications: | Details |
|---|---|
| Electronic Load: | |
| Maximum Load Current (2 ranges): | 5 A, 25 A |
| Maximum Load Voltage: | 10 V |
| Maximum Load Power: | 50 W |
| Minimum Load Resistance: | 3.3 V power supply used to allow zero load voltage at full current with up to 3.2 V drop in cell wiring |
| Current Resolution: | 1 mA |
| Current Accuracy: | 0.3% of full scale current of selected range |
| Voltage Measurement and Data Acquisition: | |
| Maximum Whole Cell Voltage: | 10.000 V |
| Maximum Reference Electrode Voltage: | 9.999 V |
| Whole Cell Sense Voltage Input Resistance: | » 35 kΩ |
| Reference Electrode Input Resistance: | » 109Ω |
| Voltage Resolution: | 1 mV |
| Voltage Accuracy: | +/-3 mV +/-0.3% of reading |
| Voltage and Current Data Update Rate: | 100 Hz |
| Fuel Interface: | |
| Outputs for anode, cathode flow controllers: | Two, Analog (0-5 V) |
| Outputs for reformate flow controllers: | Five, Analog (0-5 V) (optional) |
| Alarm Inputs: | Six: Three for gas pressures, three auxiliary |
| Alarm Outputs: | One, 5 V logic |
| Fuel Solenoid Control: | One, 5 V output (external relay needed, included with interface box) |
| Temperature Controllers: | |
| Quantity: | Three (Anode, Cathode and Cell / Furnace) |
| Type: | On/off 5 V output (external SSR required) |
| Set and Report Accuracy: | +0.25% of span, +1 least significant digit |
| Sensor Type: | Thermocouple, Type K Standard, T or S optional |
| Impedance Measurement: | |
| Interface for internal or external analyzers: | Voltage and current output channels with variable DC bias rejection, generator input channel with selectable attenuation |
| Internal Impedance Analyzer Type: | Single sine, two gain/phase measurement channels, one generator output channel |
| Internal Analyzer Frequency Range: | 1 mHz to 10 kHz |
| Measurement Channels: | Three: whole cell plus two half cell vs. reference electrode |
| Environment: | |
| Operating Temperature: | 0-40 °C ambient; all specs given for 25 °C ambient |
| Power Source: | 100-240 VAC, 50/60 Hz (auto select) |
| Size: | 3U std rack mount, 19” W x 5.25" H x 21" D |
| Safety Features: | Automatic shutdown and N2 purge with under voltage, over-current, over-temperature, loss of supply pressures, low water, furnace over-temperature, communications failure or external alarm. Manual Emergency Stop switch for manual operator shutdown. |
