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New! DVS Adventure

The new DVS Adventure is a water vapor sorption analyzer that measures sorption and desorption isotherms over a broad range of humidities and temperatures. It offers unprecedented temperature stability and humidity performance. It provides valuable information about the interactions of a sample with water vapor that is critical for the development of new materials and processes. For example, in many industries water sorption properties of raw materials are considered as key parameters in determining their storage, stability, processing and application performance.

 

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DVS Adventure Outstanding Performance

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 we’ve ever produced. Generated humidities are typically within ±0.1%RH of target humidity.

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 sorption/desorption at low RH levels.

State-of-the-Art Temperature Performance

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 oC. Typical stability at 25oC is ±0.02. This prevents issues with multiple temperature zone condensation, and allows for more accurate and more stable humidity delivery.

Balance Baseline Stability over 24 hours

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

Key measuring capabilities:
  • Water sorption and desorption isotherms
  • In-situ sample drying to 300ºC
  • Multiple sorption/desorption and sample drying cycles
  • Sample masses from 1mg to 5000mg
  • Diffusion and permeability measurements
Key hardware benefits:
  • Open stand design enabling easy access to sample pan
  • Stainless steel stand to minimize static electrical charging
  • Wide operational temperature range (5-85 oC) and uniform temperature enclosure
  • Next generation control and evaluation software for the most advanced experimental design and data analysis
  • Capability to upgrade to organic vapors and gasses
  • Optional IR, Raman and Video imaging
Applications
  • Moisture sorption with very low uptake
  • Moisture sorption kinetics and Isotherms
  • Diffusion coefficients
  • Hydration and dehydration studies
  • Moisture diffusion into electronic pastes
  • Determination of Amorphous Content
  • Humidity induced phase transitions
  • DVS Video Imaging – Phase Changes
Temperature (Temperature controlled enclosure)
  • Control range: 5°C to 85°C
  • Control precision: ±0.1°C (from 5 to 600C, 60-850±0.2°C)
  • Enclosure also provides anti-condensation protection
High temperature preheater for sample curing/drying
  • Two option temperature: 150oC and 300oC (maximum local temperature)
  • Heating ramp rates: up to 5oC/min
  • Sensors: Pt-100 thermocouple type K
Mass measurement
Ultrabalance 1

  • High Resolution SMS microbalance
  • Sample mass: between 1 and 1000mg
  • Mass change: ±150mg
  • Resolution (precision): 0.1 μg
  • Peak to peak noise: ≤ 0.5 μg

Ultrabalance 2

  • High Resolution SMS microbalance
  • Sample mass: between 10 and 5000mg
  • Mass change: ±1000mg
  • Resolution (precision): 1 μg
  • Peak to peak noise: ≤ 0.7 μg
Adventure stand
  • Manifold: stainless steel
  • Seals: Viton
  • Tubing: 1/4 inch stainless steel
Relative humidity generation and measurement
  • High accurate digital mass flow controllers for delivering gases with humidity control of less than ±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%
Computer hardware and software
The system is fully automated and controlled by purpose built software. Data can be analyzed in real time using analysis software.

1.1 DVS control software

  • 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

1.2 DVS data analysis suite

  • Plot manager
  • Isotherm manager
  • Permeability and diffusion
  • Kinetics information
  • Heat of sorption
  • Tg determinations
  • Amorphous content
DVS Adventure SchematicDVS Adventure Schematic

For more information about DVS Adventure, contact us here.

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