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Testo DiSCmini - Handheld Measuring Instrument for Nanoparticle Counting
The hand-held particle counter testo DiSCmini measures the number and average diameter of nanoparticles efficiently, based on the electrical charging of aerosols. For example, with the testo DiSCmini you can reliably monitor human exposure to diesel soot, welding fumes or industrial nanoparticles. With the handy testo DiSCmini, you can take your measurements anywhere.
Health risk due to nanoparticlesPrevious studies describe the negative impacts of ultrafine particles on health based on vague benchmarks. With the testo DiSCmini, it is now possible to measure the particle number concentration and surface area of occurent nanoparticles, LDSA (Lung Deposited Surface Area). Typical applicationsTypical applications of the DiSCmini include the determination of personal exposure in particle-contaminated workplaces (for example due to diesel soot, welding fumes and industrial nanoparticles) or in vulnerable groups (such as asthmatics or COPD patients). In addition to this, the testo DiSCmini offers various application possibilities in different disciplines of scientific research.
The small size of the testo DiSCmini makes the instrument particularly suitable for mobile on-site measuring tasks and the set-up of networks for the monitoring of ambient air. Thanks to the measurement rate with a time resolution of 1 Hz for all three measurement parameters, you also identify quick alterations in the aerosol number.
testo DiSCmini at a glance
- Hand-held nanoparticle counter for measuring the number and average diameter of nanoparticles, with a time resolution of up to 1 second (1 Hz)
- Simultaneous recording of particle number concentration and particle size enables you to determine other characteristic parameters such as particle surface area (Lung Deposited Surface Area, LDSA)
- Battery operation with a service life of up to 8 hours
- Save the data on a memory card and transfer it to an external computer via USB
- No operating resources such as working fluid or radioactive sources are needed – the testo DiSCmini can be operated over extended periods in any position
- No operating resources such as working fluid or radioactive sources are needed – the testo DiSCmini can be operated over extended periods in any position and with no topping up of any fluid
Delivery ScopeHandheld nanoparticle counter testo DiSCmini including transport case, carry bag, SD card and SD card reader, set for extending of the sample inlet, Mascot battery charger, country-specific power cord and calibration certificate.
Nanoparticle measurement anywhere.
It already exists.
testo DiSCmini operates without working fluids or radioactive sources and works in any orientation.
The Diffusion Size Classifier miniature DiSCmini is a handheld sensor for the measurement of nanoparticle number, average diameter and lung-deposited surface area LDSA with a time resolution of up to 1 second (1 Hz). The measuring principle is based on electrical charging of the aerosols. The small size of the DiSCmini makes the instrument particularly suitable for personal carry-on measurement campaigns. The instrument is battery powered with a lifetime of up to 8 hours; data can be recorded on a memory card, and transferred to an external computer via USB cable.
testo DiSCmini is the smallest instrument capable of nanoparticle number measurement available today, with a patented sensor, working in any orientation.
The handheld “Diffusion Size Classifier“ can be used for personal exposure monitoring or quick walk-through surveys of an area of interest, such as a workplace, or an urban area with heavy traffic.
Suited for all applications where ease of use is important
- Personal exposure monitoring
- Workplace hazard identification
- Filtration efficiency verification
- Air pollution mapping with one mobile or multiple stationary instruments
- Nano Particle
- Particle size
- 10 to 300 nm (Modal value)
- 10 to 700 nm (absolute)
- Particle concentration
- 1000 to 1000000 Particle/cm³ (typical values)
- The evaluated particle concentration depends on the particle size distribution and the mean measurement time.
- Accuracy ±30 % typical for size and number, ±100 Particle/cm³ absolute in number
- General technical data
- Operating humidity : < 90 %RH, non-condensing
- Dimensions : 180 x 90 x 42.5 mm
- Operating temperature : +10 to +30 °C
- Battery life : Typically 8 hours with a fully charged battery, depending on ambient temperature
- Power supply : Mains unit, 100-120 Volt or 200-240 Volt, 50/60 Hz for charging the batteries
- Weight : 700 g
- Operating air pressure : 800 to 1100 mbar absolute, ±20 mbar (Delta p max. on the air inlet)
Compared to a CPC, testo DiSCmini is truly handheld, easier to use and it delivers not only the particle number concentration but also average particle diameter and lung-deposited surface area. testo DiSCmini measures size particles smaller than about half a micron in diameter.
Due to its small size and low weight, the testo DiSCmini can also be used easily for airborne measurements.
The internal charger can be turned off, and the DiSCmini will then operate as the world‘s smallest aerosol electrometer.
