How to identify the grade of the dust particle detector and what should I pay attention to when purchasing?

Dust particle detector is an instrument
used to measure the number and size distribution of dust particles in a volume in a clean environment.
It can be widely used in provincial and municipal drug inspection institutes, blood centers, epidemic prevention stations, disease control centers, electronic industry, pharmaceutical workshops, semiconductors, optical or precision machining, plastics, spray paint, hospitals, environmental protection, inspection institutes and other production enterprises and scientific research departments
.
Usually in a clean room with a cleanliness level of 100~100,000 levels, a dust particle counter with an accuracy of 0.
5um can meet the requirements
.
When purchasing a dust particle counter, users should purchase according to their own needs to avoid unnecessary waste
.
How to identify the grade of laser dust particle detector? In terms of purchasing, there are many types of dust particle counters, which not only increases the diversity of choices, but also increases the difficulty
of selection.
Generally speaking, high-precision high-flow laser dust particle counters have higher
technical content.
The key devices and signal processing systems in the dust particle counter are the key to identifying the advantages and disadvantages of
the laser dust particle counter.
For example, imported devices have very little working noise, high sensor accuracy and long life, more scientific signal processing system, and high circuit integration
.
What are the problems that should be paid attention to when actually buying a dust particle detector? At present, there are many types of particle counter models available, and users should first choose a particle counter that meets the needs of use, and then consider the price
.
At present, the market products are a competition between white light and laser particle counters according to the light source; In terms of performance, it is a comparison
between domestic and imported particle counters.
White light and laser particle counters mainly have large differences in test accuracy and product performance, which will inevitably lead to the advantages and disadvantages of price
.
The former has poor accuracy compared with the latter, poor performance, and the service life of the light source is not long; However, it is very popular
with customers at ultra-low prices.
The price difference between domestic and imported particle counters is large, and the product performance is far apart
.