Precautions for the operation of dust particle counters

dust particle counter is a special equipment to detect the particle size of air dust particles and their dispersion, carried out by microscope, dust particle counter experienced microscope, sedimentation pipe, sedimentation meter, centrifugal deposition instrument, particle counter, laser particle counter, PCS nano laser air particle counter process, in between the laser air dust particle counter has the advantages of detection speed, dynamic dispersion wider, not affected by man-made, and become many professional dry-flow equipment for many yearsdust particle counter operation flow:dust particle counter provides an isodynamic sampling probe, which is linked to the sampling port via the Teflon sampling tubeThe isometric sampling probe helps reduce the counting error for small particle sampling and should be used in each measurementThe isospeed sampling head should always face up when sampling typical indoor and outdoor aerosol particlesThe instrument can be held on the hand or on a flat or tripod, and the LCD screen faces the operatorwhere constant air flow is sampled, such as cleanroom, duct, downstream filter, etc., the direction of air flow is always aligned with the opening of the isometric sampling headhoses that connect the isospeed sampling head and sampling port can be lengthened if requiredHowever, a longer length increases the burden on the sample pump and reduces the flow rate of the air stream and causes the sampling pump to fail prematurelyIt can also cause a loss of counts, especially for large particlesIt is recommended to shorten the length of the hose as much as possible, and it should not exceed 3 meters in lengthsampling height also affects readings, and readings near the floor may be several times the line of sight heightdust particle counter operation notes
1, when the inlet tube is covered or blocked, do not start the counting meter2, laser dust particle counter should be used in a clean environment, to avoid damage to the laser sensor
3, do not measure the possible reaction of mixed gases (such as hydrogen and oxygen)This gas may also explode within the counter These gases need to be measured by contacting the manufacturer for more information 4, no high-pressure decompression equipment (such as high-pressure diffuser) do not sample compressed air, all particle counting meters are planned for operation at an atmospheric pressure 5, water, solution or other liquid cannot enter the sensor from the inlet tube 6, when using dust particle counters to analyze pollution problems, it should be noted that not all pollution is continuous, some are short-lived events or a burst of particles caused by the results Multiple samplings in the same place are required to determine the source of contamination 7, sampling, do not sample from the counter itself out of the gas contaminated by the gas 8, when connecting the external printer or connecting the external temperature and humidity sensor, you need to turn off the counter first, when performing the printing operation, the printer must have printing paper, otherwise it will damage the print head 9, laser dust particle counter is mainly used to test the purification workshop clean environment, when the test of the local slack particles of raw materials, dust sources, spray, should be less adhere to the import tube at least twelve inches away Avoid contamination of sensors and lines with particles and liquids above The monitoring system of dust particle counter is integrated with particle counting, plankton sampling, temperature and humidity, micro-pressure difference, wind speed detection function, and the automatic control of the system to collect various parameters in the monitored environment And the promise of the final use of the requirements of their own production requirements set the control system constraints, dust particle counters to complete the overspend of the environmental parameters of the real-time online monitoring to meet the clean requirements of the user's normal production environment objectives