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DVS Endeavour
5X Parallel Gravimetric Sorption Analyzer

Offering the highest throughput of our entire DVS range, the DVS Endeavour, a 5X Parallel Gravimetric Sorption Analyzer, precisely controls and measures temperature and relative humidity while recording the highest resolution changes in mass on up to 5 samples simultaneously.

Combined with a range of modular accessories, the DVS Endeavour is one of the most versatile DVS instruments on the market.

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DVS Endeavour 400
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The ability to preload, automate, and run experiments without the interaction of an operator can save laboratories valuable time and manpower, and deliver more results in a shorter timeframe, massively reducing costs. With 5 sample chambers and a specially configured Ultrabalance system, the DVS Endeavour enables laboratories to measure real-time mass changes caused by sorption or desorption of water and/or organic molecules, and gain a detailed and accurate insight into organic and vapor sorption kinetics.

With Surface Measurement Systems Patented Speed-of-Sound Sensor, Organic vapor partial pressures can now be directly measured using the DVS Endeavour. Combined with a range of modular accessories to provide further insight and control throughout the experiment, the DVS Endeavour is an impressive tool for achieving unmatched high throughput in sorption characterization studies.

Unmatched higher throughput

With 5 sample chambers, the DVS Endeavour offers unparalleled capacity to run simultaneous sample measurement

Organic and Water vapor sorption kinetics

With the addition of the Patented Surface Measurement Systems Speed-of-Sound sensor, the DVS Endeavour can analyze sorption kinetics for both water and organic vapor.

True O drying at 0.0% RH

Surface Measurement Systems’ DVS gravimetric sorption analyzers are the only instruments of their type offering True O RH, achieving 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.

Wide Temperature Range

The DVS Endeavour enables you to measure water and organic vapor sorption isotherms from 10 to 70 °C, without any sacrifice in humidity control or precision.

In-situ drying with the sample preheater

Expand the scope of your experiment by employing the modular accessory, the sample preheater. This allows In-situ drying of samples up to 200 °C.

Optional Color Video Microscopy

Bring visual details to your reports, along with a bit of flare, by attaching the Color Video Microscopy camera, enabling high-resolution imagery to show the changes to your sample.

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Benefits
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Applications
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Solvents
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Specifications
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Schematics

Benefits

  • Simultaneous 5X sample measurement
  • Organic and Water vapor sorption kinetics
  • Organic vapor sorption in a fixed RH background
  • Real-time partial pressure measurement and control
  • Water and organic vapor sorption isotherms from 10 to 70 °C
  • In-situ drying of samples to 200 °C
  • Optional Color Video Microscopy
  • True O drying at 0.0% RH

Applications

  • Batch-to-batch variation
  • Water sorption isotherms & kinetics
  • Amorphous content
  • Hydrate/solvate formation
  • Polymorph identification
  • Diffusion and permeability

Solvents

  • Acetone
  • Chloroform
  • Cyclohexane
  • Decane
  • Dichloromethane
  • Dichloromethane
  • Ethanol
  • Ethyl acetate
  • Ethyl benzene
  • Heptane
  • Hexane
  • Isopropanol
  • Methanol
  • Nonane
  • Octane
  • Toluene
  • Water
  • M-Xylene
  • p-Xylene

    Specifications

    Temperature

    • Temperature controlled enclosure
    • Control range: 10°C to 70oC
    • Control precision: ± 0.1oC
    • Enclosure provides anti-condensation protection.

     High-temperature pre-heater for sample drying/activation

    • Delivers local sample temperatures of up to 200 °C
    • Heating ramp rates: up to 5 °C / min
    • Sensors: Pt-100 thermocouple

    Endeavour Stand

    • Manifold: 316 stainless steel
    • Seals: Viton
    • Tubing: 1/4 inch stainless steel

    Water Reservoir

    • Material: glass
    • 5 L as standard

    Organic Vapor Generation and Measurement with Speed of Sound Sensor

    High-accuracy digital mass flow controllers for vapor and gas delivery

    Speed of Sound Sensor for organic vapors

    Carrier Gas – Dry air or Nitrogen

    Partial Pressure range from 0 to 90%

    Partial Pressure accuracy from 10 – 70 °C ±1%

    In-line real-time Speed-of-Sound Sensor for organic vapor Partial Pressure (P/Po) measurements and

    control with a typical resolution of ±0.1% P/Po

    Automated zeroing of Speed of Sound sensor prior to each experiment

    Note: SMS limits the use of organic solvents to 20°C below their boiling points.

    Relative Humidity Sensor, Generation, & Measurement

    Sensor

    Capacitance probe

    Carrier Gas – Dry air or Nitrogen

    Water vapor generation range and accuracy:

    • 0% to 98% (±0.5%) RH for 10°C to 45°C 1
    • 0% to 85% (±1%) RH for 45°C to 70°C 1

    11-σ confidence level with %RH or P/Po calibration performance based on SMS factory certified methods (Salts Calibrations or equivalent method)

    In-line real-time Humidity Probe for Relative Humidity measurements and control with a resolution of 0.1% RH

    Generation & Measurement

    High-accuracy digital mass flow controllers and capacitance probe

    System Software

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

    DVS Control

    Complex protocols for multiple experimental sequences using sample pre-heating and conditioning; isotherm, isobar and ramped humidity and organic vapor methods; single or dual vapor delivery, and control; fixed time or mass derivative steps.

    Multiple-method protocols incorporating:

    • Sample pre-heating
    • Vapor sorption
    • Vapor exchange
    • Dual vapor co-adsorption
    • Temperature changes in a single experiment, including
    • Ramp or step changes in relative humidity
    • Automated video image acquisition
    • Organic vapor sorption partial pressure
    • Temperature stages may be based on fixed-time or user-defined dm/dt criteria
    • Complex isotherm experiments
    • Experiments may include half, full or multiple partial pressure or temperature cycles

    Analysis

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

    21CFR Part 11 software solution is available for all DVS software upon request.

    Mass measurement

    Ultrabalance Low Mass

    • Maximum load: 1000 mg
    • Mass change: ±150 mg
    • Resolution: 0.01 μg
    • Balance noise: ≤ 0.3 μg

    Ultrabalance High Mass

    • Maximum load: 5000 mg
    • Mass change: ±1000 mg
    • Resolution: 0.1 μg
    • Balance noise: ≤ 3 μg

    Schematics

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    Find out more about the DVS Endeavour

    The DVS Endeavour’s high sample capacity and varied modular accessories make it unrivaled in the market for high throughput and versatility. To discover more about the instrument and see what benefits it could bring to your laboratory, simply fill in your details below.

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