DMS500 Mk3 | Fast Aerosol Sizer

New modular design for a wider range of applications and budgets.

The third generation of the industry leading DMS500 has been re-engineered for 2024 with a modular design to support a wider range of applications and budgets.

The DMS500 offers users real-time size distributions between 5nm and 2,500 nm at 10 Hz, using the principle of electrical aerosol spectrometry.

The DMS500's ease of use and traceable data, combined with optional flexible integrated dilution systems (with the sensitivity for ambient measurements, while supporting sampling of high concentration sources such as combustion burners) have seen hundreds sold worldwide since the first generation in 2002.

DMS500 Key Features

Measurement of aerosol size distributions between 5 nm and 2.5 μm for both solid particles and liquid droplets
The fastest time response available: 10 Hz data, 200 ms T10-90% response
High sensitivity — suitable for ambient measurements
Integrated two stage dilution for high concentration measurements

Electrical Mobility Measurements

The DMS500 combines electrical mobility classification of particles with sensitive electrometer detectors, outputing particle size / number distributions in real-time.

With flexible sample handling options the DMS500 is ideally matched to a range of applications from ambient and process monitoring to direct measurements of high concentration sources such as combustion.

DMS500 Mk3 Brochure

Download a brochure, or contact Cambustion for further information and prices.

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Fast Time Response for changing aerosols

Patented features of the DMS500 give it a T10-90% response of just 200 ms; the fastest time response available in any ultrafine aerosol sizer.

This fast time response is especially applicable in resolving of fast changing phemomena, with applications including drug delivery systems, tobacco smoke research, pyrotechnics and indoor air quality issues such as cooking, wood stoves and more.

Low Diffusion Losses

The DMS500 uses a high sample flow rate (8 litres per minute) and unique multiple sheath flows in the charger, resulting in low diffusion losses even of small particles smaller than 10 nm.

No Radioactive Charger

The DMS500 uses a controlled corona charger — no radioactive sources are required. This makes the DMS500 easily transported to different laboratory, industrial or even domestic settings for measurements.

Traceable Calibration

Each DMS500 undergoes a traceable calibration procedure, involving real aerosols, taking full account of particle losses, and even different particle morphologies thus preventing the drop in accuracy at larger sizes seen in some other analyzers.

Traceable calibration certificates for spherical and agglomerate (optional) calibrations are provided.

An optional portable size check kit allows the user to check the sizing accuracy of the DMS500 on site, without the need for any other equipment.

Nanoparticles from 3D Printing

Here the DMS500 is used to measure the nanoparticles released from 3D printing of ABS

Find out more

Further details3D printer emissions

Need more information? Connect to an expert

Software

The user interface includes full datalogging of measurements and operating parameters, and runs on a Windows PC. The software is supplied as standard with a multi user licence — no need to dedicate a particular PC.

Unattended operation in applications such as air quality monitoring is supported via scheduled operation; based either on fixed time intervals, or a more sophisticated user programme.

Data visualisation tools for MS Excel are included to assist in understanding the data from the DMS500.

Available Options

The DMS500 Mk3 is available with the following options to suit your needs and budget

Size range

Either the standard 5 nm – 1000 nm, or with switchable 5 nm – 2500 nm option (the time response is slightly increased and the sensitivity reduced in 2.5 μm mode)

Sample handling & conditioning options

The DMS500 Mk3 may be ordered with a heated sampling line, and either 1 or 2 stages of fully integrated dilution allowing measurements from combustion exhaust with no additional equipment. The first stage is compressed gas (usually air or nitrogen) and the second stage uses a rotating disk. A catalytic stripper is also available to remove volatiles without increasing dilution.

Integration options

As an option, the DMS500 Mk3 offers users 4 analogue inputs and 4 analogue outputs. The analogue inputs allow monitoring of (for example) a sampling location which is being switched (multiplexed). The analogue outputs allow triggering of external devices such as cameras or other aerosol measurement instruments.

The remote AK protocol and a digital input / output control line port are also available as options for automating experiments.

Reduced sensitivity options

Measurement of volatile, very high concentration aerosols such as e-cigarettes presents conflicting challenges. Lack of dilution may saturate instrument detectors, while a long residence time at high concentration can lead to particles coalescing. Providing dilution to avoid these two challenges can lead to evaporation of volatile particles and a reduction of the measured particle size / mass concentration. Therefore the DMS500 Mk3 is available with options in which the sensitivity of the detectors is reduced and/or partial sample flow is used such that the necessity for pre-measurement dilution can be avoided or reduced.

Key Application Notes

Title	Data Type	Download File	Size	Last Updated
Title	Number : Size Spectrum Correlation with Particulate Mass Measurements	Data Type	Application note	Download File	dms01.pdf	Size	912.10 KB	Last Updated	13-11-2017
Title	Water pipe smoking	Data Type	Application note	Download File	dms22-water-pipe-smoking.pdf	Size	954.24 KB	Last Updated	04-08-2017
Title	DMS500 Reproducibility and Accuracy	Data Type	Application note	Download File	dms21v01-dms500-reproducibility-and-accuracy.pdf	Size	961.96 KB	Last Updated	12-07-2017