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The maintenance secret to extend the service life of the particle counter
Date: 2025-08-18Read: 0
Particle counting instrumentAs an experimental equipment for precise counting of seeds and granular materials, its counting accuracy and service life depend on long-term scientific maintenance. By targeted cleaning, component maintenance, environmental control, and calibration, the probability of failure can be significantly reduced, ensuring long-term stable operation of the equipment and avoiding counting errors or hardware damage caused by improper maintenance.
Daily cleaning should focus on "no residue, no damage". After each use, it is necessary to immediately clean the counting channel and tray: for seed residues, use a soft bristled brush (such as a wool brush) to gently sweep away debris from the counting tray and guide tube to avoid particle accumulation blocking the channel (especially for small particle size seeds such as rapeseed and tobacco seeds); If there is residual viscous material (such as damp seeds), it should be wiped with a dust-free cloth dipped in anhydrous ethanol. It is strictly prohibited to use hard objects to scratch the optical sensing area on the surface of the counting disk to prevent counting omissions caused by wear of the sensing holes. After cleaning, open the side cover of the device and blow the dust on the surface of the optical sensor and circuit board with compressed air to avoid dust covering and affecting signal recognition. Deep cleaning should be carried out once a month, and several trays (refer to the equipment manual) should be disassembled to clean the dust and stains at the bottom of the tray.
The maintenance of core components requires precise control by module. The optical system is its core, and the alignment of optical sensors (such as infrared emitters and receivers) needs to be checked quarterly. If an increase in counting deviation is found, the sensor position can be adjusted through the device's built-in calibration function to ensure smooth optical path; If there are scratches or aging on the surface of the sensor, it is necessary to replace it with a sensor of the same model in a timely manner to avoid affecting the counting accuracy. Transmission components (such as disc drive motors and conveyor belts) need to be coated with specialized lubricating oil (such as food grade silicon-based grease) every two months. Before application, the surface oil stains of the components need to be cleaned to ensure uniform lubrication and reduce mechanical wear; At the same time, check whether the motor wiring terminals are loose. If there is terminal oxidation, use fine sandpaper to polish and apply conductive paste to prevent poor contact from causing motor overload.
Environmental control is an easily overlooked maintenance point.Particle counting instrumentIt should be placed in a constant temperature and humidity environment with a temperature of 20 ℃ -25 ℃ and a humidity of 40% -60%, avoiding direct sunlight or near heat sources (such as ovens and heaters), to prevent internal components of the equipment from accelerating aging due to excessive temperature differences; If the humidity in the laboratory is high, a dehumidifier should be equipped, and a moisture-proof pad should be placed at the bottom of the equipment to prevent the metal parts of the base from rusting. In addition, it is necessary to ensure stable power supply for the equipment. It is recommended to use a regulated power supply to prevent voltage fluctuations from damaging the circuit board; Do not stack corrosive reagents (such as acid or alkali solutions) near the equipment to prevent volatile gases from corroding optical components and metal casings.
Regular calibration cannot be omitted. Every six months, precision calibration of the particle counter is required, using standard particles (such as a known number of glass beads) for counting verification. If the counting error exceeds ± 1% (within the allowable range of industry standards), the parameters need to be adjusted through the equipment calibration program: first clean the optical sensor, then enter the calibration interface, enter the standard particle quantity, and the equipment will automatically correct the counting threshold until the error meets the standard. Calibration records need to be archived as an important basis for equipment maintenance; If the accuracy still does not meet the standard after calibration, it is necessary to contact the manufacturer for maintenance and investigate whether there is sensor aging or circuit board failure.
In summary, extending the service life of the counting instrument requires a comprehensive process of "cleaning maintenance environment calibration". Through refined maintenance, it can ensure the reliability of counting data, reduce equipment maintenance costs, and achieve long-term stable operation.