Configuration

HELOS/BR
CUVETTE 50

Particle size analysis of suspensions and emulsions from 0.25 µm to 875 µm with small amounts of precious or active substances

Together with the stationary CUVETTE 50 the compact laser diffraction sensor HELOS/BR forms a particularly suitable combination for wet measurement of small amounts of finely dispersed samples with particle sizes ranging from 0.25 µm to 875 µm. Typical applications involve substances that are very intricate to manufacture, therefore valuable and only available in small quantities. Due to their active or toxic properties, special sample handling is often required, and measurements need to be managed with very low particle concentrations.

The geometry of the 50 ml stationary cuvette produces a long optical path for the laser beam (over 20 mm) in the sample liquid, thereby enabling the optimum concentration for reliable measurements – even with low sample concentrations. An integrated ultrasonic finger made of titanium can be manually lowered into the cuvette as required. The energy input for dispersion can be precisely controlled from 0 to 60 W by the software. The necessary homogenisation of the sample during the measurement is achieved with the aid of a PTFE-coated magnetic stirrer with adjustable speed.

The cuvette consists of high-grade optical glass and all joints are sintered, so it is extremely chemically resistant and suitable for most dispersing liquids. Potential contamination of the sample is effectively prevented, as a result of which complete recovery and reuse of the sample in its original state is possible even after the measurement. The stationary cuvette also promotes simple and safe filling and makes cleaning effortless.


The modular concept of the HELOS laser diffraction series allows this configuration to be systematically expanded with numerous dispersion units and dosing options to open up many more product-appropriate measuring applications.

  • Particle size and particle size distribution
  • For analyses in the laboratory
  • For suspensions and emulsions | Precious, active substances
  • 50 ml analysis volume | For small sample amounts
  • 4 high-resolution measuring ranges from 0.25 µm to 875 µm | R2 to R5T
  • Cuvette made of sintered glass | No contamination of the sample
  • Integrated titanium ultrasonic finger | Energy input 0 to 60 W
  • PTFE-coated magnetic stirrer
Typical APPLIcATION
Baclofen

Baclofen

Dispersed systems

Unit operations

SIMILAR CONFIGURATIONs
HELOS/KR + CUVETTE/50

HELOS/KR + CUVETTE/50

Laser Diffraction | Wet
Size range: 0.25 µm - 3,500 µm
Analysis volume: 30 ml - 50 ml

Suited for

Typical applications

Applied for control of

HELOS/BR + CUVETTE/6

HELOS/BR + CUVETTE/6

Laser Diffraction | Wet
Size range: 0.1 µm - 87.5 µm
Analysis volume: 4 ml - 6 ml

Suited for

Typical applications

Applied for control of