Laser diffraction particle size analyzer HELOS/BR INHALER

for the pharmaceutical industry

When combined with the modular INHALER adapter, the compact laser diffraction sensor HELOS/BR delivers time-resolved and reproducible analyses of the size distribution of droplet mists and solid aerosols with particles ranging from 0.25 µm to 875 µm. The modular layout of the INHALER adapter offers optimum options for flexible adaptation to a wide range of different pressurised metered dose inhalers (pMDI), dry powder inhalers (DPI), nebulisers or more recent developments such as superfine mist inhalers (Soft Mist™ Inhaler | SMI). In order to simulate different breathing profiles, measurements can be performed as a function of volumetric flow or pressure loss. The inhalation and measurement duration can be freely defined. The central components of the INHALER comprise – alongside a base unit in which the other components are integrated – the measuring chamber and the software-controlled vacuum control unit, which ensures precise control of the volumetric flow. Nebulisers with slanting mouthpieces can be vertically aligned with a tilt compensation feature in the central unit. A large selection of system components allows the system to be adapted to different application conditions and further analysis requirements. Inlet side | Before the measuring zone Mouthpiece – accurately fitting holders and mountings for applicators | individual mountings can be manufactured from silicone compound Extension cylinder – for adapting the distance between the mouthpiece and the measurement volume (spacer) 90° glass pipe bend – simulation of the throat, horizontal installation position also with pre-separator