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MTS-740 Membrane Test System
MTS-740
New
The 740 Membrane Test System is ideally suited for development of new ionomers and solid electrolytes. It offers rapid and accurate measurement of the through-thickness membrane resistance and conductivity as a function of temperature, humidity level and pressure.
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The 740 Membrane Test System eliminates the time-consuming approach of catalyzing a membrane and assembling a fuel cell to evaluate the ionomer performance.Membrane Test System
- Scribner offers two compatible Frequency Response Analyzers for the 740 Membrane Test System: Solartron Analytical 1260 FRA and PSM1735 FRA from Newton’s4th.
- Uses bare (non-catalyzed) membranes
- Small sample size 6 mm x 30 mm
- Spring-loaded sample compression – easy, repeatable sample loading up to 400 PSI (2.76 MPa)
- Rapidly characterize samples over wide temperature & RH
- Robust method – accurate, repeatable & reliable
- Custom MTS4 Software for complete measurement process control and data acquisition
- CorrWare®, ZPlot® , MultiStat®, ZPlot·Lab™ & ZView® software for measurement and analysis of sample impedance
- Wet and dry gas mixing for accurate and precise RH control and rapid RH cycling
- Test chamber backpressure control, condenser and collection tank for high-temperature operation
- In-situ sample temperature and dewpoint measurement for real-time RH monitoring
- Control and monitoring of multiple process temperatures
- Rapid, easy cell assembly with accurate and repeatable sample compression
- Multiple alarms for safe operation
- Cell lock-feature for safe operation at elevated temperature, pressure and H2 gas
- Automatic shutdown and N2 purge on alarm condition
- Detailed cell assembly instructions and data analysis procedure
- Native USB interface to PC for easy set-up
| Specification: | Details |
|---|---|
| Gas and Humidification System: | |
| Humidifier: | 316 SS material, designed for 100% gas saturation, auto water fill |
| Mass Flow Control: | Two; Wet and Dry, 0 - 500 sccm each (allows variable wet gas % and RH control) |
| Sample Gas Selector: | Selects N2 or H2/other |
| Gas Pressure Switches: | Two; N2 and H2/other |
| Gas Dewpoint Meter: | One, capacitance-type sensor in sample chamber |
| Measurable Dewpoint: | 0 to 100 °C |
| Set and Report Accuracy: | +0.25% of span, +1 least significant digit |
| Set and Report Resolution: | 0.1 0 C |
| Sensor Type: | Thermocouples, Type T |
| Temperature (max) | 180 °C (chamber, sample), 120 °C (humidifier), 130 °C (gas transfer line) |
| Sample Chamber: | |
| Open/Close Mechanism: | Threaded, screw-in cell head with integrated electrodes and locking-pin |
| Electrode Clamp Mechanism: | Mechanical, spring-loaded, integrated with cell head |
| Electrodes: | Platinum, proprietary four-terminal design (U.S. Patent No. 7,652,479) |
| Temperature Range: | Ambient to 180 °C |
| Pressure Range: | Ambient to 30 PSIG (207 kPa) |
| Post-Chamber Gas Flow Path: | Heat exchanger, condensate collection tank, precision manual back pressure regulator, vent port |
| Electrochemical Interface and Impedance Measurement: | User-supplied Impedance Analyzer (Solartron Analytical 1260 FRA or Newtons4th PSM 1735 + IAI Interface recommended) |
| MTS4 software works with CorrWare®, ZPlot®, MuItiStat™ and ZPlot-Lab™ and direct control of Newtons4th FRA | |
| Physical and Environment: | |
| Operating Temperature: | 15 - 35 0C |
| Power Source: | 100 - 120 VAC; 50/60 Hz |
| Size, cm (in.): | 46 H x 28 W x 48 D (18 x 11 x 19); excluding installed cell head |
| Software inputs for each experiment: | Chamber, humidifier and gas transfer line temperature set point; Pre-treatment (equilibration) time; Total gas flow rate, Wet gas %, Gas type (H2other or N2), and Back pressure (manually set) |
| Number of steps per experiment: | Up to 100 |
| Live Data Display: | Sample temperature and dewpoint, RH value (calculated from dewpoint and sample temperature), Wet and dry gas mass flow rates, Measured impedance for a single frequency from ZPIot®, remaining step time |
| Data File Format: | Tab delimited ASCII file. Contains time, total flow, wet and dry flow, % wet, temperatures (dewpoint, sample, chamber, humidifier, gas transfer line), RH, pressure, gas type ZPIot® impedance data saved as standard *.z file compatible with ZView™. |
| CorrWare, ZPlot, MultiStat, ZPlot•Lab & ZView are trademarks of Scribner Associates, Inc. Nafion® is a registered trademark of E. I. du Pont de Nemours and Company. |
| Products | Description |
|---|---|
| BT-710 Cell Head | Cell head for in-plane membrane conductivity measurements with the 740 Membrane Test System and a benchtop potentiostat |
| Gas Mixing | Gas mixing for reformate simulation or impurities/poisons studies |
