Answer three common questions about dust particle counters

Answer three common questions about dust particle counters

First, how to look at the accuracy of the dust particle counter?

The dust particle counter mainly determines the degree of cleanliness of the dust particles in the environment and their distribution.

Generally, in a clean room with a clean grade of 100 to 100,000, a dust particle counter with a precision of 0.5 um can be used to meet the requirements.

Of course, a dust particle counter of 0.3 um or less can be used when funds permit.

Users should purchase the dust particle counters according to their own needs to avoid unnecessary waste.

Second, how to identify the grade of the laser dust particle counter?

In the purchase of dust particle counters, there are many varieties, which facilitates the selection and increases the difficulty.

Generally speaking, the high-precision and high-flow laser dust particle counter technology has a higher content, and the ordinary desktop laser particle counter is not well-received.

The key components and signal processing systems within the dust particle counter are the key to identifying the advantages and disadvantages of laser dust particle counters.

The liquid crystal display is higher than the digital tube display technology. The imported device has low noise, high precision and long life, advanced signal processing system, high circuit integration and strong anti-piracy capability.

Good instruments, excellent manufacturers, and dust particle counters are accompanied by traceability data.

Third, what are the problems that should be paid attention to when actually purchasing dust particle counters?

In the purchase of particle counters, there are a wide variety of existing particle counter models.

The user should first select the particle counter that meets the usage requirements, followed by the price of the particle counter. At present, the market products are mainly desktop and portable particle counters. According to the light source, the comparison between white light and laser particle counter is performed; the performance is the killing of domestic and imported particle counters.

Desktop and portable particle counters vary widely in flow and accuracy, as well as in product technology and devices, but the trend toward portable alternative benchtops has become more apparent, and the flow problem has made portables impossible to compare with desktops.

White light and laser particle counters mainly have great differences in test accuracy and product performance, which inevitably lead to price advantages and disadvantages. The former is less accurate than the latter, the performance is not good, and the life of the light source is not long; but it is very popular among customers at a very low price.

The price difference between domestic and imported particle counters is large, and product performance is far apart.

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