Dual-Balance Gravimetric Sorption Analyzer - DVS Discovery

DVS Discovery - Dual Balance Gravimetric Vapor Analyzer

The world's most advanced dual balance gravimetric vapor analyzer, the DVS Discovery, is the latest innovation in the Dynamic Vapor Sorption (DVS) instrument range. The DVS Discovery combines an innovative dual balance design with exceptional vapor generation and temperature control, increasing productivity and reducing operator time.

Cutting-Edge Technology in DVS Discovery

Employing Surface Measurement Systems' proprietary Dynamic Vapor Sorption (DVS) technique, the DVS Discovery enables users to conduct advanced material characterization research using water or organic solvents. The instrument comes with all the hallmark features of the DVS range: incredible Ultrabalance precision, unparalleled temperature and humidity control, and a range of modular accessories that considerably expand its capabilities.

Applications of the Dual Balance Gravimetric Vapor Analyzer

This versatile instrument can be used in a wide range of applications, providing data on:

• Water sorption kinetics and isotherms
• Pharmaceutical solids hygroscopicity
• Tg and RH phase transitions in polymers
• Amorphous content determination
• Diffusion and permeation in polymers
• Foods, flavors, and fragrances
• Sorbents
• Wood and cellulosic materials
• Composites
• Hydrophilic and hydrophobic materials

Dual Balance Design for Simultaneous Mass Measurements

Increase productivity and reduce operator time with our innovative dual balance design, allowing simultaneous mass measurement of two samples. This unique capability not only accelerates experiments but also offers greater precision and reliability in results.

Capability Expansion with Modular Accessories

The DVS Discovery includes our patented Speed of Sound sensor, microscope camera, in-situ sample pre-heater, IR/Raman, and more, offering a range of modular accessories to considerably expand its capabilities. These additional tools enable researchers to conduct even more detailed and specific experiments, enhancing the breadth and depth of analysis.

True Drying at 0.0% RH

As the only DVS instrument range that offers True 0 Relative Humidity, achieving water partial pressures as low as 0.0% RH, it is vital for hydrates and other compounds that only dry completely below 1% RH and for investigating sorption/desorption at low RH levels.

Water Vapor Sorption Kinetics and Isotherms from 10 to 70°C

Obtain accurate and detailed data on water sorption kinetics and material isotherms using water vapor or organic solvents. The advanced temperature control of DVS Discovery allows researchers to conduct experiments across a wide temperature range, ensuring the accuracy and relevance of results.

DVS Discovery Technical Specifications

Temperature Control

• Temperature-controlled enclosure:
• Control range: 10 °C to 70 °C
• Thermal stability ± 0.05 °C over 6 hours
• Temperature resolution: 0.01 °C

High Temperature Pre-heater for Drying up to 2 Samples

• Maximum local temperature: 200 °C
• Heating rates: up to 5 °C/min
• Temperature sensor: Pt-100

Manifold

• 316 stainless steel
• Seals: Viton® and Kalrez® or equivalent
• Tubing: 1/4 inch stainless steel

Solvent Reservoir

• 1 glass reservoir as standard
• Optional heated reservoir

Flow Control

• High precision digital mass flow controllers
• Wide dynamic range – 1000:1 turndown ratio
• Carrier gas: dry air or nitrogen

Relative Humidity

• Relative humidity range:
• From 0 to 98% for 10 – 45 °C
• From 0 to 85% for 45 – 70 °C
• Relative humidity resolution: ± 0.1%
• Relative humidity stability: ± 0.1% over 6 hours
• Accuracy in 10 – 45 °C RH range: ± 0.5%
• Accuracy in 45 – 70 °C RH range: ± 1%

Organic Vapor Generation and Measurement Using Speed of Sound Sensor

• Partial pressure range: from 0 to 90% P/Po
• P/Po resolution: ± 0.1%
• P/Po accuracy from 10 – 70 °C: ±1% P/Po

Mass Measurement

• Low Mass Ultrabalance:
• Maximum load: 1000 mg
• Mass variation: ±150 mg
• Resolution: 0.01 μg
• Balance noise: ≤ 0.3 μg
• High Mass Ultrabalance:
• Maximum load: 5000 mg
• Mass variation: ±1000 mg
• Resolution: 0.1 μg
• Balance noise: ≤ 3 μg

System Information

• Dimensions: 520 mm (L) x 980 mm (H) x 610 mm (D)
• Weight: 80 kg (180 lb)
• Electrical: 200-240 V, 50/60 Hz, 1500 VA

Hardware Configuration

• AQUA: 1 humidity sensor
• Organic: 1 humidity sensor plus 1 Speed of Sound sensor (1 reservoir)

System Software

DVS Control Software

• Sample pre-heating
• Vapor sorption
• Temperature changes in a single experiment
• Relative humidity ramp or step changes
• Automated video image and IR/Raman spectra acquisition
• Complex isothermal experiments
• Organic vapor sorption with partial pressure
• Experimental stages based on fixed time or user-defined dm/dt criteria
• Experiments can include complete, partial, or multiple partial pressure or temperature cycles
• Compatible with Windows™ 10

DVS Analysis Software

• Isotherms
• Permeability and diffusion
• Kinetic information
• Surface area models
• Amorphous content
• Sorption heat
• Tg determinations

Software Options:

• Standard
• Control software
• Standard analysis
• Advanced
• Advanced analysis suite
• Isotherm analysis suite
• 21CFR Part 11 software solution (optional)

Conclusion

The DVS Discovery, with its dual balance gravimetric design and advanced capabilities, represents the pinnacle of vapor sorption analysis technology. Its precision, versatility, and efficiency make it an indispensable tool for laboratories and research institutions seeking to conduct detailed and reliable material analyses. Whether you are involved in materials research, carbon capture, pharmaceutical development, or any other area requiring precise sorption measurements, the DVS Discovery is the ideal instrument for you. Discover the difference that cutting-edge technology can make in your research with the DVS Discovery dual balance gravimetric vapor analyzer.