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Particle Counter

Particle Counter works on the principal of either light scattering or light blocking. An aerosol stream is drawn through a chamber with a light source. When a particle is illuminated by this light beam, it is redirected or absorbed. Here at Marshall Scientific we sell a wide assortment of particle counters with notable brand names such as Beckman and Met One. Please view our inventory of particle counters and feel free to give us a call or send us an email if you have any questions.

Particle Counters
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Beckman Z2 Particle Counter Beckman Z2 Particle Counter

Beckman Z2 Particle Counter Specifications

Operating Temperature

10° to 35°C

Relative Humidity

10% to 85% without condensation

Electrolyte Solution

Aqueous: 1% to 5% sodium chloride,

Particle Size

Each size of aperture allows the measurement of particles in the approximate diameter range of 2% to 60% of the aperture diameter. 1µm to 120µm equivalent spherical diameter (depending on the aperture size).

Particle Count Accuracy

Within ± 1% of a reference counter system.

Particle Count Precision

Better than 1% CV at metered volumes 0.5mL and 1.0mL.

Better than 2% CV at metered volume of 0.1mL.


The displayed pulse height range is divided into 100 Threshold Units (100% equals full scale). Each threshold (i.e. Lower and Upper) is resolvable and selectable in 0.1 unit increments.

Accuracy of ±0.2% full scale.

Aperture Tube Sizes

Standard Aspect Ratio: 50µm, 70µm, 100µm, 140µm, 200µm

Ampoule Insertable Style: 50µm, 70µm, 100µm

Metering Volumes

0.1mL, 0.5mL, 1.0mL

Our Price: $6,145.00