The basic principle of CW-HPC600 six-channel handheld dust particle counter is that particles in the air will scatter under the irradiation of light, which is called light scattering. Light scattering is related to particle size, light wave wavelength, particle refractive index and particle light absorption characteristics. However, as far as scattered light intensity and particle size are concerned, there is a basic law that the scattered light intensity of particles increases with the increase of particle surface area. In this way, the particle size can be inferred by measuring the intensity of scattered light, which is the basic principle of the light scattering particle counter. In fact, the scattered light intensity produced by each particle is very weak, which is a very small light pulse. Optical pulses need to be amplified by photoelectric converters and converted into electric pulses with large signal amplitude, and then further amplified and discriminated by electronic circuits, so that a large number of electric pulses can be counted. At this time, the number of electric pulses corresponds to the number of particles, and the amplitude of electric pulses corresponds to the size of particles.
The specific working principle of the dust particle counter is that the light from the light source is focused in the measuring cavity by the lens group. When every particle in the air passes through the measuring cavity quickly, the incident light is scattered once to form a light pulse signal. This optical signal is sent to the optical detector through the lens group 2, converted into an electrical pulse signal in proportion, amplified and identified by the electronic circuit of the instrument, and the required signal is selected and displayed by the counting system. It should be pointed out that although the instrument is called "counter", its ability to distinguish particle size is more important. Because the counting of electric pulses is simple, it is very important to judge the size of particles.
Product introduction of CW-HPC600 six-channel handheld dust particle counter CW-HPC 600 & amp； CW-HPC600A handheld laser dust particle counter is a high-sensitivity laser dust particle counter which integrates handheld and desktop printing. Its patented design not only leads the international similar products in sensitivity, resolution and stability of sensor technology. More unique multi-functional integrated design, meet and facilitate the needs of users. It can measure the quantity and distribution of particles in the environment in real time and accurately. Various measurement parameters can be set, such as automatic real-time display, granularity selection, timing, delay and automatic repeated measurement, time and date setting, data storage and printing, counting over-limit alarm lamp function, etc.
CW-HPC600 and; CW-HPC600A handheld particle counter is designed according to the international standard ISO 14644- 1, which is displayed in Chinese and English with backlight. The novel FPGA technology ensures the reliability and accuracy of real-time detection when six users arbitrarily set the granularity channel to be tested. The built-in flash memory can store up to 1000 sets of sampling data, and can realize high-speed data download through USB interface. The instrument has high test precision, stable performance and strong versatility, and is an ideal instrument for testing the cleanliness level of clean environment and clean room in quality supervision institute, ultra-large scale integrated circuit ultra-clean workshop (room), authoritative inspection institutions such as electronics industry, medical and health care, food processing, optics or precision machinery, and scientific research departments such as aerospace.
CW-HPC600 six-channel hand-held dust particle counter has both portable function and random printing charging function.
At the same time, six granularity channels randomly set by users are sampled and analyzed.
High resolution backlight display?
Replaceable lithium battery?
Automatic timing delay sampling and over-limit alarm
USB interface can be used for high-speed data download.
External temperature and humidity sensors ensure test accuracy.
Application field of CW-HPC600 six-channel hand-held dust particle counter for ultra-clean environment detection
Indoor and outdoor environment detection
Purification workshop in electronics, medicine, food and other industries.
Filter efficiency analysis test
Check pollution source analysis
Particle size distribution analysis