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Electric suction aids can accurately suction and transfer culture media and cell suspensions
Date: 2025-05-14Read: 22
Electric suction aids are used in the field of cell culture, as they can accurately extract and transfer culture media, cell suspensions, etc., helping researchers accurately control the liquid composition of the cell growth environment and providing strong support for the healthy growth of cells. In microbial detection experiments, it can quickly transfer the sample liquid to different detection areas, improve detection efficiency, reduce the time the sample is exposed to the external environment, and lower the risk of contamination. In medical laboratory work, it also plays an important role, such as accurate operation in the processing of blood samples, addition of reagents, etc., to ensure the accuracy of test results.
The calibration method for electric suction aids is as follows:
Appearance and general inspection
-Identification check: Check if the suction aid has clear markings such as factory name, address, serial number, and date of manufacture.
-Component integrity inspection: Check whether the outer shell of the suction aid is intact, without obvious damage, deformation or cracks; Each connecting part should be firm and free of looseness; The operating components such as buttons and knobs should be flexible, without any jamming or damage.
-Vacuum gauge inspection: The range of negative pressure indicated by the vacuum gauge should be clear and adjustable, and the dial scale should be clear and accurate, without blurring or wear.
-Inspection of safety bottles and liquid storage bottles: Safety bottles and liquid storage bottles should be labeled with mL units, and the bottle body should not have cracks, damages, or leaks. Their capacity markings should be clear and distinguishable.
Performance parameter calibration
-Flow calibration: Using a professional flow measurement device, connect the suction or exhaust end of the suction aid to the measuring device, turn on the suction aid, measure its actual suction and exhaust flow rates in different working modes (such as different suction gears), and compare them with the specified standard values. If there is a deviation, it can be calibrated by adjusting the flow adjustment device or related parameters inside the suction aid until it meets the standard.
-Pressure calibration: With the help of a pressure sensor or pressure gauge, it is installed at the corresponding part of the suction aid. After starting the suction aid, the pressure value generated is measured and compared with the standard pressure value. If the pressure does not meet the requirements, the airtightness, motor performance, and pressure adjustment system of the suction aid can be checked. The pressure can be calibrated by replacing the seal, repairing the motor, or adjusting the pressure adjustment knob.
-Noise calibration: In a quiet environment, use a noise meter to measure the noise level near the source of the suction aid during operation, ensuring that it meets the specified standards. If the noise is too loud, it is necessary to check whether the internal structure of the suction aid is loose, whether the motor is running normally, whether the fan blades are balanced, etc., and repair or adjust the problems found to reduce the noise.
-Vacuum negative pressure calibration: By measuring the vacuum degree (i.e. negative pressure level) generated by the suction aid, a vacuum gauge or professional negative pressure measuring instrument can be used to connect it to the negative pressure output port of the suction aid, turn on the suction aid, read the vacuum degree value, compare it with the standard value, and if the vacuum degree is insufficient, check the sealing performance of the suction aid, the performance of the vacuum pump, etc. If necessary, repair or replace parts to ensure that the vacuum degree meets the standard requirements.
