The Micromeritics® TriStar II Plus is a fully automated surface area and porosity analyzer that delivers a rapid high throughput analysis with high accuracy. The three-station unit increases the speed and efficiency of routine quality control analyses, yet has the accuracy, resolution, and data reduction capability to serve research requirements. The instrument combines versatility in analysis methods and data reduction to allow analyses that are customized to application needs.
Provides frustration-free operation
and ensures repeatable chamber volume
The unique analysis manifold is
designed for highly-accurate
gas management
Three analysis ports operate
simultaneously and
independently of one another.
A dedicated P° port
Isothermal Jackets ensure a
constant thermal profile
A Dewar provides more than 40
hours of continuous
temperature control.
The intuitive Micromeritics MicroActive control software for the TriStar II Plus enables the user to interactively evaluate isotherm data and reduce the time required to obtain surface area and porosity results. It is not necessary to generate reports to view results. Calculations, such as the BET surface area transform plot, can be easily generated, and adjusted. The selection bars allow for a range of data points to be quickly and easily selected. As a result, the summary of values derived from the calculations is instantly updated. Within the calculation window(s),the range of data used can be further refined.
MicroActive software for the TriStar II Plus also includes a powerful utility that allows the user to overlay a mercury porosimetry pore size distribution with a pore size distribution calculated from gas adsorption isotherms. This import function allows users to rapidly view micropore, mesopore, and macropore distributions in one easy-to-use application
The Advanced NLDFT model allows the user to combine the information gathered from nitrogen and carbon dioxide isotherms to deliver a full pore size distribution on materials (such as carbon slit pores) where pores of molecular sizes are present. The range of pore size analysis in this method is extended to smaller pore sizes compared to the standard nitrogen analysis. This is since CO2 can access some very small micropores that are not accessible to N2 at cryogenic temperatures due to size restrictions, connectivity problems, or extremely slow diffusion
External sample preparation is recommended to provide optimal analysis throughput and quality of measurement. All basic sample preparation systems are designed with six independent stations so samples can be prepared as they become available, and so preparation does not limit analytical throughput.
| Absolute | Range: 0 to 950 mmHg |
| Relative | P/P0 range: 0 to 1.0 P/P0 |
| Specific Surface Area | From 0.01 m2/g, nitrogen unit |
| Total Surface Area | From 0.1 m2, nitrogen unit |
| Pore Volume | From 4 × 10-6 cm³/g |
| Dewar Duration | Up to 40 hours |
| Gas Consumption | Up to 300 cm³ STP per port |
| Nitrogen Unit | Nitrogen; argon, carbon dioxide, or other non-corrosive gases; butane, methane, or other light hydrocarbon vapors. Oxygen can also be used only with an appropriate vacuum pump. |
| Krypton Unit | Same as nitrogen unit, plus the capability to perform krypton surface area analyses at lower pressures |
| Accuracy | ±0.25 °C |
| Resolution | Within 0.1 °C |
| Nitrogen Unit | Must accommodate 20 × 10-3 mmHg or better; uses oil-based or oil-free vacuum pump |
| Krypton Unit | Must accommodate 1 × 10-3 mmHg; oil-free vacuum pump required |
| Temperature | 10 to 35 °C (50 to 95 °F), operating |
| Humidity | 20 to 80% relative, non-condensing |
| Indoor or Outdoor Use | Indoor only |
| Height | 74 cm (29 in.) |
| Width | 40 cm (16 in.) |
| Depth | 51 cm (20 in.) |
| Weight | 37 kg (82 lbs) |
| Voltage | 100-240V~ |
| Power | 150VA, maximum |
| Frequency | 50/60Hz |
| Overvoltage category | II |
Provided specifications were valid as taken from available documents at time of publication. These specifications may change without notice and are only provided as a general reference
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