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InstruQuest Inc.
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  5. InstruQuest - Model V-GA - Versatile ...

InstruQuest - Model V-GA -Versatile Gravimetric Water Vapor Sorption Analyzers

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High capacity (typically 100/220g or 120g) Sartorius semi-microbalance eg. CPA 225D. Electromagnetic force compensation. Thermal compensation. Adaptable to noisy environments. Integrated calibration weight. Overload protection. Readability (model dependent), typically 10 or 100 micrograms. Superior accuracy and stability.

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sampling chamber
calibration weight
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V-GA isothermal chamber

  • Temperature control of sample chamber from sub-ambient to 95C with stability +0.1C
  • Temperature of experiment from sub-ambient to 60 C at full range of RH (standard model)
  • Sample chamber size (5.2cm x 5.2cm x 12.8cm), different sizes optional
  • High temperature digital RH probe (RH and T data) (in the vicinity of the sample)
  • Additional temperature sensor (RTD) (in the vicinity of the sample)
  • Proprietary design of vapors exhaust system and anti-condensation protection
  • Uniform RH distribution (special diffuser)
  • Dual gas/vapor entry ports
  • Large area sample holders with fine mesh bottoms
  • USB/Serial communication port for transfer of RH and temperature data to PC
  • Small size of instrument (w/o balance): 23cm x 27cm x 38cm
  • Intuitive design of experiment protocols and saving them for reuse
  • Isothermal profiles
  • Iso-humidity profiles
  • Isobars
  • Fast run
  • Up to 1000 steps per run
  • Ability to select and combine several equilibrium criteria
  • Calculation utility for solving variety of "RH problems"
  • Graphing, generating reports, viewing previous data
  • Ability to modify experiment parameters at any time
  • USB/Serial communication with a PC
  • Automated installation
  • Sample Chamber Size -  8.9 cm x 8.9 cm x 20 cm
  • Water Vapor Source - HumiSys HF RH Generator (0.5 - 5L/min)
  • Temperature Range - from about 15 Deg C below ambient  to 60 Deg C
  • Proprietary Design of Balance Lifting Assembly
  • High Sensitivity and capacity balance (Sartorius CPA 225D)