Q1: How to use the handheld particle counter?
A1: The particle counter is simple to use, first determine the number of test points according to the area of the clean room and distribute the test points evenly in the clean room, then set the measurement time, measurement unit, flow rate, and other parameters of the particle counter, then put the particle counter on the plane of 1~1.2 meters height from the ground in the middle of the sampling point, and finally start to test the sampling and record the data one by one.
Q2: How to change the printing paper of the particle counter?
A2: Generally, the printing part of the particle counter has a cover, some covers can be lifted directly to cover, lift it to replace the printing paper, and some need to use a screwdriver to unscrew the screw, the specific instructions are also introduced, open the cover to follow the thermal printing paper can be replaced.
Q3: How to read the dust particle counter?
A3: The results of the dust particle counter, generally the left column is the particle diameter, and the right column is the number of particles per cubic meter.
Tips: Particle counter working principle
The light from the light source is focused by the lens set in the measuring chamber, when each particle in the air passes the measuring chamber quickly, it scatters the incident light once, forming a light pulse signal. This light signal is sent to the light detector through the lens set, and is converted into an electrical pulse signal, which is then amplified and screened by the electronic circuit of the instrument to pick out the required signal and display it through the counting system.
