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Filter Weighing


MTL’s newest innovation is its most powerful automated system yet, the AH500. Featuring an integrated micro-environment and weighing robot in one system, the AH500 is major step forward in reducing the amount of space filter weighing requires while also expanding capabilities


  • Dramatically smaller footprint
  • Improved energy efficiency
  • Processing of more sizes of filters, including 47mm, 70mm, and 90mm
  • Faster than its predecessors
  • Works with 2D baccoded and non barcoded filters if using filter carriers with 2D barcodes
  • Specifications

  • Temperature control to 0.2 Celcius
  • Dew point control to 0.25 (RH to 1%)
  • Clean room classification – Class 6 per ISO 14644
  • Weighing Repeatability
  • o On six-place balances, 0.6g on metal standards, 1g on filters

    o On seven-place balances, 0.25g on metal standards, 0.60g on filters

  • Speed
  • o Two minutes for one repetition, direct read method

    o Seven minutes for three repetitions, drift-corrected method

    o Fifteen minutes for three repetitions, substitution method

  • Weighing methods
  • o Direct read method zeroes the balance and takes a filter reading

    o Drift-corrected weighing corrects filter results for the balance’s zero drift

    o Substitution weighing compare the mass of the filter to the mass of a metal standard that is close in mass to the filter

  • General
  • o Power: 110-240VAC @ 50/60Hz

    o Dimensions: 940mm (width) x 661mm (depth) x 762mm (height)

    Video of AH500 can be found here.

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