DVS Adventure - The Worlds Most Advanced Water Sorption Analyzer

The DVS Adventure is a water sorption analyzer designed and manufactured by Surface Measurement Systems. It is the latest addition to the DVS family of advanced sorption instruments.

DVS Adventure is the product of Surface Measurement Systems’ almost 25 years of experience in developing physico-chemical instrumentation techniques such as Dynamic Vapor Sorption. DVS Adventure is specifically-designed to study water sorption and operates over a wide temperature range from 5 to 85°C. It comes with an extensive range of options including sample pans, pre-heaters, , NIR, Raman spectroscopy and a high resolution (5MP) video camera.

The DVS Adventure can precisely control and measure both temperature and relative humidity while recording the highest resolution changes in mass.

DVS Adventure uses a dry carrier gas, typically nitrogen or compressed air, for its operation. Digital mass flow controllers regulate the flows of dry and moisture saturated gases. Relative humidity is generated by precise mixing of dry and saturated gas flows in desired flow ratios to produce the requested relative humidity. In a typical experiment a known concentration of water vapor is delivered over a sample placed inside the sample pan connected to the Surface Measurement Systems Ultrabalance™ measuring real-time mass changes caused by sorption or desorption of water molecules. Prior to sorption measurements, the sample can be preheated/dried in-situ at temperatures of up to 300°C. Additionally, the sample chamber and water vapor generation are at thermal equilibrium in a single temperature enclosure allowing for operation over the entire temperature range (5-85°C) without risk of condensation.

Key Measurement Capabilities

  • Sorption and desorption isotherms
  • In-situ sample preheating/drying to 300°C
  • Multiple sorption/desorption and sample drying or activation cycles
  • Sample masses from 1mg to 5000mg
  • Surface and bulk measurement capabilities and analysis

Key Hardware Benefits

  • Open stand design enabling easy access to sample pan
  • Stainless steel stand prevents static electrical charging
  • Broad temperature range (5-85°C)
  • Advanced control and data analysis software for the most advanced experimental design and data analysis
  • Capable of upgrading to organic vapors and gas mixtures
  • Optional Near-IR, Raman and Video imaging

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Outstanding Performance

Temperature Stability over 24 hours

The DVS Adventure features an extremely stable single temperature enclosure around the entire instrument allowing vapor generation and delivery to occur at the sample temperature over the entire operational rang of 5-85°C. Typical stability at 25°C is ±0.02°. This prevents issues with multiple temperature zone condensation, and allows for more accurate and more stable humidity delivery.

Humidity Stability over 24 hours

The DVS Adventure contains the cumulative knowledge of 25 years’ worth of Surface Measurement Systems’ excellence in vapor generation. It truly has the highest level of humidity precision in any instrument level that they have ever produced. Generated humidities are typically with ±0.1%RH of target humidity.

Balance Baseline Stability over 24 hours

The DVS Adventure is capable of measuring mass changes at a resolution of 0.1 µg with peak to peak noise of less than or equal to +/- 0.2 µg. The Surface Measurement Systems Ultrabalance™ is unrivalled in its precision and accuracy.

True0™ RH

Surface Measurement System’s DVS gravimetric sorption analyzers are the only instruments of their type offering True0™ RH. Our DVS instruments achieve partial pressures of water as low as 0.0% RH. This is important for hydrates and other compounds that only completely dry below 1% RH and investigation of adsorption/ desorption at low RH levels.

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Product Specifications:

Temperature High Temperature Preheaters
Temperature controlled enclosure
Control range: 5°C to 85°C
Control precision: ±0.1°C from 5-60°C, ±0.2°C from 60-80°C
Two temperature options: 150°C and 300°C (maximum local temperature)
Heating ramp rates: up to 10°C /min
Sensors: Pt-100 thermocouple
Adventure Stand Relative humidity generation and measurement
Manifold stainless steel
Seals: Viton
Tubing: 1/4inch stainless steel
High accurate digital mass flow controllers for delivering gases with humidity control of ±0.1%RH
Relative humidity sensor with measurement precision of ±0.1%RH
Relative humidity range generated from 0 to 98% (dependent on temperature)
5 to 60°C - 0 to 98%RH
60 to 85°C - 0 to 85%RH
RH range accuracy between 5 to 60°C ± 0.5%
RH range accuracy between 60 to 85°C ± 1%
Mass Measurement Water Reservoir

Ultrabalance 1 Low Mass Microbalance
Sample mass: between 1 and 1500mg
Mass change: ±150mg
Root Mean Square balance noise: ≤ 0.2 µg
Resolution (precision): 0.1 µg

Ultrabalance 2 High Mass Microbalance
Sample mass: between 10 and 5000mg
Mass change: ±1000mg
Root Mean Square balance noise: ≤ 2 µg
Resolution (precision): 1 µg

Material: glass
0.5 and 1L as standard

DVS Adventure Software

Next generation purpose built instrument control and data analysis software for the most advanced experimental design and data analysis.

Control Software

The DVS Adventure control software provides complete system control, allowing the user to easily design, edit and run automatic or manual vapor sorption experiments.

Special features include:

  • Multiple-method protocols incorporating sample pre-heating and temperature changes during an experiment
  • Ramp or step changes in relative humidity
  • Humidity or temperature stages may be based on fixed-time or user-defined dm/dt criteria
  • Isotherm and isoactivity experiments
  • Experiments may include half, full or multiple partial pressure or temperature cycles
  • Create sequences which allow multiple experiments to be executed one after another
  • Simple data export and analysis can be performed without interruption of experiments
  • Network data backup functionality is also included

Analysis Suite

The DVS Adventure data analysis suite, which runs from within Microsoft Excel®, provides a powerful environment for rapid data processing and one-click report generation.

  • Permeability and diffusion
  • Isotherm
  • Kinetics information
  • Heat of sorption
  • Tg determinations
  • Amorphous content

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