ZPi

ZETA-READER® Mark 21

The ZETA-READER has been a respected name in zeta potential measurement since the early seventies. It was designed to be an instrument that would be both simple to use, and give accurate and repeatable results in a wide range of applications. The new ZETA-READER Mark 21 improves this consistency and dependability by utilizing the latest available technology, while maintaining the original philosophy of flexibility and ease of use.

Our customers played a significant role in our effort to redesign the ZETA-READER, and by integrating their desire for new features and capabilities beyond the original, ZPi has developed a computer based instrument that is completely modular in construction. The ZETA-READER Mark 21 has these following innovative features:
  • Mark 21 is computer controlled using proven hardware and software that can easily be reconfigured as future advancements are made.
  • The cell image is scanned by a high resolution color ccd camera and displayed on a high resolution color monitor. ZETA-READER's original vertical scan lined measuring technique is retained, and with the 25 micron line spacing allows the operator to visually gauge the particle or floc size, while performing tests.

  • The optical module is designed for the demands of laboratory use, but with the Mark 21's rugged modular design, it is also easily transported and used in a process environment.
  • Zeta potential, mobility, specific condutivity, ph, cell voltage, and temperature with full zp compensation are displayed concurrently on the monitor. No switching is required to view the desired parameter.
  • Light emitting diode (LED) light sources are utilized and offer safe, cool, and extremely long life sample cell illumination in both dark and bright field mode. NO EXPENSIVE AND HAZARDOUS LASER!
  • The sample cell is designed for quick removal and cleaning or replacement by another cell, with no calibration required, for increased productivity.
  • Sample flow through the cell is totally automatic. Sample lines are made up of continuous tubes keeping sample volume requirements to a minimum. Extremely small samples may also be injected manually via syringe and automatically purged.
  • An operation/service manual as well as onboard diagnostics is provided to aid in trouble-shooting or signal tracing.
  • Optional software is available for data storage and curve generation. Single or multiple curves may be displayed on the monitor with differentiating colored lines, and then stored in the computer file along with the recorded data in the chart form.

  • Optional Image Analysis for particle size distribution.

  • Optional Integrated Titration System for easy & controlled chemical additions.

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