Q:Will TSI's instruments be returned to the United States when they are returned to the original manufacturer for repair?

A:No, TSI has after-sales service centers in Beijing, Shanghai, and Shenzhen, and can provide services nearby.

Q:Why is the flow rate of the laser dust particle counter 28.3L/min?
A:Because the laser dust particle counter has a flow rate of 28.3L/min?
A:Because the laser particle counter first used the US 209E standard, the cleanliness classification flow rate defined in the standard is 1 cubic foot, which is a very low flow rate. is 1 cubic foot, which is 28.3L/min.

Q:What does the differential value in the laser dust particle counter mean?


A:The differential value refers to the number of detected particles between two particle sizes. For example, the differential value of 0.3~0.5 microns refers to the number of particles in this particle size range.

Q:What should I do if the laser dust particle counter does not inhale?

A:The laser particle counter does not inhale air, which is generally caused by a pump.

A:The laser particle counter does not inhale air , which is generally caused by a pump failure, and needs to be returned to the original manufacturer for repair.

Q Can the laser dust particle counter be connected to a wind speed probe and a temperature and humidity probe?

A. Yes, TSI's laser particle counters can be equipped with relevant probes.

Q:What are the wrong views on


A:1. Not enough knowledge about filters, only the cheapest filters are used;
&Not enough knowledge about filters, only the cheapest filters are used;

2. Filters are believed to be sterilizing;

3. Filters can be cleaned and used repeatedly;

4. Filters are sieves;

5. Filters can filter everything;

Q:What is the recommended final resistance of the filter? final resistance of the filter?

A:Filter efficiency specifications ----recommended final resistance (Pa)

G3 (coarse) ----100 -150


G4 ----150 -200


F5-F6 (medium efficiency) ----150 -250

F7-F8 (high and medium efficiency) ----250 -400

F9-H11 (sub-high efficiency) ----350 -450

High efficiency and ultra-high efficiency ----400 -600

Q:How to choose a filter reasonably?


Answer:Selection points:

1. The performance of the final filter should be reliable.

1. The performance of the final filter should be reliable.

2. The efficiency specifications of the pre-filter should be reasonable.

3. The maintenance of the primary filter should be convenient.

4. maintenance of the primary filter should be convenient.

Choose a filter with a large filtration area;studies have shown that if the filtration area increases by 50%, the service life can be doubled, and the replacement cost and air conditioning cleaning cost can be reduced.
Users can choose a filter with appropriate filtration efficiency according to their own control particle range.