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Coulter
Multisizer 3
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Easy to operate. Instrument completely
controlled through the computer with user-friendly software.
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Easy to operate. Instrument completely
controlled through the computer with user-friendly software.
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Digital Pulse Processor. The resolution,
range and others parameters, can be change at anytime after the
analysis without re-analyzing the sample.
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Resolution can be selected from 4 to 300
channels at any selected range.
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Detection of any change in the sample over
the length of the analysis. The pulse distribution allows detecting if
the sample dissolve, agglomerate, flocculates, etc.
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Suitable for both aqueous and organic
electrolytes.
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Variable volumetric metering. Any volume
can be selected from 50 µl to 2000 µl.
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Environmentally friendly. Mercury-free
metering system.
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Self-contained analyzer and sample stand
saves space in the laboratory.
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New system to fit the aperture (no grease
and not elastic bands) makes easy to change configuration of size
range.
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Auto unblock aperture system eliminates
the need of external brushing to clean the aperture.
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Maintenance-free vacuum pump.
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Features: Nine
approved ASTM methods
• Technology defined by the International Standard ISO 13319.
• Reference Counter for cell biology as defined in 1987 by the
Expert Panel on Cytometry in the International Committee for
Standardization in Hematology.
• Easy to operate. Instrument completely controlled through the
computer with user-friendly software.
• Digital Pulse Processor. The resolution, range and others
parameters, can be change at anytime after the analysis without
re-analyzing the sample. • Resolution can be selected from 4 to 300
channels at any selected range.
• Suitable for both aqueous and organic electrolytes.
• Variable volumetric metering. Any volume can be selected from 50
µl to 2000 µl.
• Environmentally friendly. Mercury-free metering system.
• Self-contained analyzer and sample stand saves space in the
laboratory.
The use of a Digital Pulse Processor (DPP)
allows storing all the original information from the pulses generated
at the moment of the analysis. High-speed digitalization of the signal
allows the use of pulse area analysis and other techniques for
additional particle characterization. This information may be used at
a later time to recalculate the size distribution for a different
range, number of channels, or even to change the calibration constant.
It means you never have to reanalyze a sample again. In addition to
the size distribution, the DPP data also calculates the pulse
distribution in addition to the size distribution. By looking to the
pulse distribution graph, it is possible to know if the sample
preparation was stable over the length of the analysis. An unevenly
distributed pulse pattern is indication of changes in the sample
preparation than otherwise just with the size distribution graph
wouldn't be possible be detected. Research for utilizing all the
possibilities offered by the pulse data has just began.
Fantastic Resolution
Resolution is the capability to
differentiate between different particle sizes. Higher resolution
means more detailed size information. The Multisizer 3 provides the
highest resolution available for particle size distribution by
measuring a real parameter of a particle, its volume. It can
discriminate between two particles close in size better than any other
instrument. Particles that are distributed under different size
categories by the Multisizer 3 might be placed under one size category
by other instruments or technologies. It means in many cases that if
your particles or cells change in size, it won't be detected using
another instrument than Multisizer 3. The Digital Pulse Processor (DPP)
allows recalculating the original data for a narrower range. There is
no need of 'Zooming IN' and therefore, the decrease in resolution.
Users of the Multisizer 3 will enjoy
the flexibility and all the features offered by the software provided
with this instrument. There is a myriad of information that can be
obtained with just a click. The software allows the customization of
SOP's, SOM's and printed reports. For biological or industrial
applications, in quality control or research, the Multisizer 3
software will satisfy any requirements for the presentation of the
results.
Calibration ?
Calibration of the Multisizer 3 is
easy, simple and quick. The software automatically performs the
calibration of the Multisizer 3. It provides consistency and
confidence in the results of the analyses. In addition to the auto
calibration, the software may perform a verification of the
calibration at any time it is requested by the operator. The software
will determine if the instrument is calibrated or needs a new
calibration. |
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Coulter Multisizer 3 particle counter
"Simply the best counter on the market!"
The
Cadillac of particle counters, the Multisizer 3
is the most versatile particle size analyzer
available today for a multitude of size range materials. It provides
size and volume distributions in number, volume, surface area and
mass, with an overall range of 0.4µm-1200µm.
The Multisizer 3 uses
The
Coulter Principle
(Electrical Sensing Zone Method) to measure particle volume, a
direct measurement of a physical property of the particle.
While retaining and
enhancing the analogs circuits developed and refined by Coulter over
many years, the Multisizer 3 incorporates the latest advances in
electronics using state-of-the-art digitizing circuits. High-speed
digitalization of the signal allows the use of pulse area analysis
and other techniques for additional particle characterization. The
resulting measurement data can be analyzed and formatted in numerous
ways, or stored and re-analyzed at a later date with no need to
analyze the sample again. The measurement data for each particle
analyzed is stored. The instrument automatically corrects for
coincidence.
For biological or
industrial applications, in quality control or research, the
Multisizer 3 is simply the best.
Particles suspended in
a weak electrolyte solution are drawn through a small aperture
separating two electrodes between which an electric current flows.
The voltage applied across the aperture creates a "sensing zone". As
each particle passes through the aperture (or "sensing zone") it
displaces its own volume of conducting liquid, momentarily
increasing the impedance of the aperture.
This change in
impedance produces a tiny but proportional current flow into an
amplifier that converts the current fluctuation into a voltage pulse
large enough to measure accurately. The Coulter Principle states
that amplitude of this pulse is directly proportional to the volume
of the particle that produced it. Scaling these pulse heights in
volume units enables a size distribution to be acquired and
displayed. In addition, if a metering device is used to draw a known
volume of the particle suspension through the aperture, a count of
the number of pulses will yield the concentration of particles in
the sample.
$ In stock NOW, call for quotation, one
new (unused) and one demo unit, both with full warranty.
Other counters:
Coulter Z1 single and dual threshold
Coulter Z2
You can reserve/order this
instrument by calling
763-712-8717 or by
completing the form
on the Ordering Page
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