PowderJet Dry Feeder
PowderJet ll disperses cohesive fine powders for fast, easy, repeatable size analysis of dry particles down to the sub-micron range.
HORIBA's LA-series Particle Size Analyzers gain new convenience and productivity when teamed with the PowderJet Dry Feeder system. When installed, the PowderJet is an integral part of the measuring unit providing a simple yet effective method of analyzing both free-flowing and cohesive dry powders.
Since the PowderJet uses the same optics, light source and calculation algorithms, results between wet and dry analyses are directly comparable. The PowderJet can be used when it is important to analyze the particle size of a material only in its dry form or when it is necessary to know the size of relatively loose dry agglomerates. In addition, many materials are soluble in commonly used dispersing liquids and can only be analyzed safely using the PowderJet .
The Ultimate Dry Analysis Performance
Years of refinement have led to a dry powder analysis system unparalleled in performance and convenience. The design of the Powderjet optimizes the sample dispersion process. In the Powderjet, the sample is fed from an automatic speed-controlled vibratory feeder directly downward into the top of the sample cell assembly, moving just a few inches in free fall to the dispersion nozzel. This approach prevents powder build-up, clogging, and the incosistent feed rate normally experienced in systems that use tubing to transport powder horizontally and upward to the sensing zones. The HORIBA technique also simplifies cleaning between samples.
The dispersion nozzle injects high-pressure air into the sample stream, dispersing agglomerates with the high shear rate and pressure differential. Dispersion presure is adjustable to match the needs of the sample and alternate nozzles are available for different types of material requirements.
An optional sample cell, designated Vacuum Cell, is available for fragile samples requiring no pressurized air input.
The Ultimate Convenience
Once installed, the PowderJet remains on the analyzer even when switching from dry to wet, or wet to dry analysis. Only the sample cell needs to be changed; a ten-second procedure on the LA-950. This eliminates the need to remove then entire sampling system and cell, then replace it with an alternate sampling system and cell. Storage of accessories is also eliminated. The cell in the measurement position is automatically recognized, causing the software to change automatically.
The ability to swap sampling systems allows the instrument to be available for either type of analysis in a short time, maximizing system availability and utility. The footprint of the combined system is no larger than the base instrument, and important consideration in today's crowded laboratories.
