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Malvern Instrument’s Spraytec laser diffraction system allows measurement of spray particle and spray droplet size distributions in real-time for more efficient product development of sprays and aerosols. It has been specifically designed to address the unique requirements for spray characterization and deliver robust, reproducible droplet size data.

Overview

Incorporating over 35 years of experience in spray applications, the Malvern Spraytec provides the data required to fully understand spray and atomization processes. It will:

  • Measurement across a wide size range (0.1 – 2000 microns) without requiring constant optics changes.
  • Resolve rapid changes in droplet size over time, by measuring up to 10,000 measurements a second.
  • Deliver accurate, concentration-independent results using a patented multiple scattering analysis.
  • Characterize wide spray plumes without risking optical contamination.
  • Simply reveal the dynamic changes in spray particle size through its unique size history analysis software.

How it works

The Malvern Spraytec uses the technique of laser diffraction for measurement of the size of spray droplets and spray particles. It does this by measuring the intensity of light scattered as a laser beam passes through a spray. This data is then analyzed to calculate the size of the droplets that created the scattering pattern.

The Spraytec system is made up of the following main elements:

  • A transmitter module which contains the collimated laser light source used to illuminate the spray during a measurement.
  • A receiver module which can hold one of two lenses (300mm or 750mm) which focus any light scattered by the spray onto a series of detectors. These detectors accurately measure the intensity of light scattered by the spray droplets over a wide range of angles.
  • An optical bench which ensures the transmitter and receiver are aligned. The length of this can be changed in order to fit with different applications, with the longest bench being 2.5m long.
  • The Spraytec software which controls the system during the measurement process and analyzes the scattering data to calculate spray size distributions. The results are displayed as a ‘size history’ trend plot, allowing any changes in the droplet size over time to be instantly recognized.

Specification

General

Principle:
Laser Light Scattering.
Analysis:
Mie and Fraunhofer scattering including a patented multiple scattering analysis.
Data acquisition rate:
Rapid mode: 10kHz. Continuous mode: 1Hz.
Maximum Measurement Time:
Rapid mode: 30 seconds. Continuous mode: 60 minutes.
Measurement Triggering:
Internal: Based on transmission or light scattering levels. External: Based on TTL input or simple switch trigger.
External Device Synchronization:
Via 2 TTL trigger outputs.

Optics

Light source:
Max 4mW He-Ne Laser, 632.8nm.
Lens arrangement:
Fourier (parallel beam).
Lens Focal Length:
300mm and 750mm.
Measurement range:
150mm at 0.5 µm, extending to greater than 1m above 5 µm.

Detector

Arrangement:
36 element log-spaced array.
Angular range:
0.015 – 17 degrees.**
Alignment:
Automatic.

Sizing Performance

Particle size:
300mm lens: 0.1 – 900 µm (Dv50: 0.5 – 600 µm). 750mm lens: 2 – 2000 µm (Dv50: 5 – 1600 µm).
Accuracy:
Better than 1%.***
Repeatability:
Better than 1%.***
Reproducibility:
Better than 1%.***

Software

21 CFR part 11:
Enables an operating mode that assists with ER/ES compliance.

System Compliance

Laser safety:
Class 3R, IEC60825-1:2007 and CFR Chapter 1: Sub-chapter J: Part 1040 (CDRH).
Regulatory testing:
CE / FCC compliant. Meets requirements of the European Low Voltage directive.

Weight and dimensions

Laboratory systems:
950mm optical bench: 950mmx550mmx610mm (36kg). 1400mm optical bench: 37kg 1400x550x610 (37kg).
Spray Facility Systems:
950mm optical bench: 950mmx550mmx650mm (36kg). 1400mm optical bench: 1400x550x650 (37kg).

System

Power:
100/240 v, 50/60 Hz.
Product storage temperature:
-20°C to +50°C.
Operating temperature (°C):
+15°C to +40°C.
Humidity:
80% maximum for temperatures up to 31°C, decreasing linearly to 50% at 40 °C. Non-condensing.
Ingress Protection (IP) rating:
IP65 when in normal use

Notes

*:
This defines the maximum allowable distance between the far edge of the spray plume and the Spraytec receiver lens.
**:
Lens dependent.
***:
Relates to the measurement of the Dv50 for NIST-traceable latex standards. Sample dependent.

Latest software update

3.20
(20/07/2010)
Download update

Accessories

Spraytec

Aerosol Positioning Accessory Aerosol Positioning Accessory Image The Malvern Spraytec aerosol positioning accessory enables users to reproducibly position aerosol cans or pump sprays relative to the Spraytec laser diffraction measurement zone during spray droplet and particle size measurements. This helps to eliminate a significant source of variability associated with spray measurements, enabling the reproducible testing of domestic and personal aerosol products. More information
Air Purge Accessory Prevent optics contamination during spray droplet particle size measurements Image The Air Purge Accessory prevents deposition of spray droplets on the Spraytec optics during the measurement of wide or concentrated spray plumes. This enables the routine characterization of products such as paint sprays or agrochemical application systems. More information
Extraction Accessory Safe capture and handling of aerosol and sprays. Image The Spraytec Extraction Accessory provides a means of collecting and capturing spray droplets and particles during spray particle size measurements. This ensures that spray particle recirculation is reduced during measurements, and also helps manage the risks associated with user exposure to spray droplets. More information
Inhaler and Nebulizer Accessory Inhaler and nebulizer characterization. Image The Spraytec Inhaler and Nebulizer Accessory provides users with the ability to reproducibly measure the droplet or dry powder particle size distributions produced by metered dose inhalers, dry powder inhalers and nebulizers. Formulations can be rapidly screened for the correct dispersion properties, providing researchers with the detailed information required to develop new inhaled drug delivery products. More information
Nasal Spray Accessory Nasal Pump Spray Analysis. Image The Nasal Spray Accessory provides users with the ability to reproducibly measure the droplet or particle size distributions produced by nasal drug delivery devices, as part of bioequivalence studies or production quality control. Studies can also be carried out to determine how changes to the nasal spray device, formulation or device actuation profile can affect the delivered spray particle size. More information
Wet Dispersion Accessory Image The Spraytec Wet Dispersion Accessory is a cost effective wet sample dispersion unit designed for measuring samples in non-aqueous dispersants where solvent usage needs to be minimized. More information

Support

When you purchase a Malvern product we understand that this is just the first stage of a working relationship that will last for the lifetime of the instrument. Some customers just need to ask an occasional question or to download a software upgrade, whilst others require a comprehensive support contract with priority call out and fixed cost of ownership. Whatever your situation Malvern will provide the right support for you.

Help Desk

  • Telephone and email support.
  • Operators who take responsibility for your call and ensure your query is answered. 

Training

  • On Site training courses
  • Classroom training
  • E-learning

Resource center

  • Application notes
  • Technical notes
  • On demand presentations
  • Live webinars

Software downloads

  • A simple mechanism for receiving updates and new features

Platinum and Gold Service Contracts

  • Protection from the cost of downtime
  • No time lost in obtaining help when you need it
  • Fixed cost of ownership

Bronze Service Agreements

  • Protect the value of your investment
  • Reduce the risk of downtime
  • Protect the validity of your data
 
 

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The importance of particle size to spray hazard analysis Article (English)

Legislative changes concerning the safety and testing of spray products place increasing importance on fully understanding their characteristics and controlling the inhalation risks. Spray droplet size dictates how deeply a particle can p...


Keywords: Aerosols and sprays English Article Spraytec Laser diffraction Consumer products 

Scoping the Design Space for Generic Nasal Sprays Article (English)

In this article, Deborah Huck-Jones, PhD, Product Manager, Analytical Imaging; and Paul Kippax, PhD, Micrometrics Product Group Manager & Pharmaceutical Portfolio Manager, both of Malvern Instruments, discuss analytical methods that can b...


Keywords: English Article Spraytec Particle shape Particle size Pharmaceutical formulation and development Orally inhaled and nasal drug products Morphologi range 

Using laser diffraction particle size data to optimize the performance of sprays Whitepaper (English)

Controlling the size distribution of droplets in sprays and aerosols is essential to ensure successful delivery of a product, whether it is a drug to a patient, a coating to a substrate, a pesticide to a plant, or fuel to an engine. This ...


Keywords: Aerosols and sprays English Whitepaper Spraytec Laser diffraction Automotive and aerospace Consumer products Personal care Oil and petrochemicals Specialty chemicals Fuel injectors Propellants Fuel and oils Pharmaceutical development Pharmaceutical formulation and development Pharmaceutical manufacturing Orally inhaled and nasal drug products 

Proveris Solo for Spraytec Software Quick Install Guide (English) User Manual (English)

Installation manual for Proveris Solo for Spraytec Software


Keywords: English User Manual Spraytec 

Proveris Solo for Spraytec Software User Manual (English) User Manual (English)

User manual for Proveris Solo for Spraytec Software


Keywords: English User Manual Spraytec 
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