740 Membrane Test System
740 MTS는 새로운 이오노머 및 멤브레인 개발에 이상적입니다.
온도, RH 및 압력의 함수로 멤브레인을 포함하는 챔버를 빠르게 제어해 멤브레인의 인플레인 또는 Through plane 저항 및 전도도를 빠르고 정확하게 측정합니다.
740 MTS는 멤브레인에 촉매 작용을 하고 이오노머 성능을 평가하기 위해 연료 전지를 조립하는 시간 소모적인 접근 방식을 제거합니다.
- 옵션 선택에 따라 인플레인 또는 Through plane 헤드를 선택할 수 있습니다.
- MTS 소프트웨어에서 자동으로 제어되는 N4L 임피던스 분석기를 사용하면 AC 방식으로 인플레인 및 Through plane 저항을 측정할 수 있습니다. 각 방식은 그에 맞는 헤드를 사용해야 합니다.
- 솔라트론 1260 임피던스 분석기와 ZPlot 소프트웨어를 사용해 AC 방식의 Through plane 측정이 가능하고. 솔라트론 1287 Potentiostat과 CorrWare 소프트웨어를 사용해 DC 방식으로 Inplane 측정이 가능합니다. 각 방식은 그에 맞는 헤드를 사용해야 합니다.
Features
- 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 dew point measurement for real-time RH monitoring
- 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)
- Control and monitoring of multiple process temperatures
- Rapid, easy cell assembly with accurate and repeatable sample compression
- 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
- Safety features include alarm conditions and automatic hardware shutdown for safe, reliable operation.
Products Description
BT-710 Cell Head | Cell head for in-plane membrane conductivity measurements with the 740 MTS and a benchtop potentiostat |
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. |
Product Support Documents
- Application Note: BT-11X In Plane Membrane Conductivity Reproducibility
- Download the 740 MTS Datasheet
- Download MTS4 Software version 4.4h Updated September 21st, 2022.
- Release Notes
- Application Note on Cell Resistance for SGL 25BC GDL when used with 740 MTS
- Application Note on MTS 740 Cell Head Stop Ring App Note Rev A
- Download the Excel® spreadsheet that calculates the relationship between gas relative humidity, water vapor partial pressure and percent wet as function of user-defined operating conditions of humidifier temperature, sample temperature and system pressure. MTS 740 users will find this tool valuable when developing RH test profiles for membrane resistance and conductivity testing.
- See the PROGRESS MEA 2010 Conference presentation on the 740 MTS as presented in La Grand Motte, France, 19-22 September 2010.
- K. R. Cooper, “Progress Toward Accurate Through-Plane Ion Transport Resistance Measurement of Thin Solid Electrolytes,” Journal of the Electrochemical Society, 157, B1731 (2010).
- Principal Scientist Dr. Kevin Cooper presented a new paper at Polymer Electrolyte Fuel Cells 11, at the 220th ECS Meeting, Boston, 9-14 Oct 2011, Paper # B10-1043. Click to download K.R. Cooper, “Characterizing Through-Plane and In-plane Ionic Conductivity of Polymer Electrolyte Membranes,” ECS Transactions, 41(1) 1371-1380 (2011).
- The 740 MTS and membrane resistance measurement procedure enables differentiation of the in-plane and through-plane resistance and conductivity of anisotropic membranes such as W.L. Gore & Associates’ supported membranes. To learn more, download this presentation.
- **Latest References: Download a list of the latest papers referencing the MTS 740.
- *GORE and designs are trademarks of W.L. Gore & Associates, Inc.
- Dr. Kevin Cooper has published a new article in the journal Macromolecules on the properties of Rigid-Rod Poly(phenylenesulfonic acid) PEMs with Cross-Linkable Biphenyl Groups for Fuel Cell Applications featuring resistance and conductivity data using Scribner’s 740 Membrane Test System (MTS). Macromolecules members can read it here.

- Download MTS4 Software version 4.4h Updated September 21st, 2022.
- Release Notes