The use of sterile sealed container leak detectors (such as for drugs or medical devices) must strictly follow safety regulations and environmental controls to ensure detection accuracy and personnel safety. The main precautions include:
1、 Equipment preparation and environmental requirements
1. Equipment inspection: Before use, confirm that the appearance of the equipment is not damaged, the wiring is not aged, the probe is clean and unobstructed, and verify that the power supply voltage meets the rated value; The battery is fully charged or the external power source is stable.
2. Environmental conditions: The testing area should be well ventilated to avoid potential hazards such as open flames and static electricity; The concentration of combustible gases in the air should be below 20% of the lower explosive limit, and if necessary, pre check the environmental safety.
3. Personal protection: Operators should wear anti-static work clothes, insulated gloves, masks, and pressure caps. Chemical fiber clothing is prohibited to prevent static electricity.
2、 Standard operating procedures
1. Power on and calibration: First, lightly press the power button and wait for the self-test to complete. Then, calibrate the zero point in clean air (with the probe 1.5 meters above the ground without interference). During the calibration process, do not move the probe or breathe to affect the data.
2. Probe operation: The probe forms a 20 ° -45 ° angle with the measured surface and moves at a speed of ≤ 1 cm/s; Keep the probe handle stable during testing, and focus on checking the interface, valves, and other parts for 2-3 seconds.
3. Leakage response: When a leakage signal is detected (such as an increase in buzzing frequency or a sudden rise in value), immediately mark the location and exit the detection area, and notify professional personnel to handle it; Do not investigate on your own when reporting an alarm.
3、 Maintenance and safety protection
1. Cleaning and Disinfection: Wipe the casing and probe after use, and use specialized cleaning agents for the screen; Replace the testing water or sealed liquid in the bucket every week to avoid dirt residue affecting accuracy.
2. Component maintenance: Regularly check the aging condition of the seals (replace them in a timely manner if damaged), and replace the filter element every six months or every year; Lithium batteries are charged and discharged monthly to prevent power loss.
3. Emergency measures: Cut off power and stay away when the equipment heats up or smokes abnormally; The leakage accident shall be handled according to the emergency plan to ensure the cooperation of two people.
4. Other key points: avoid solvent vapor or strong airflow interference with test results; The detection direction should be consistent with the actual pressure direction used to improve accuracy.
The maintenance cycle should be customized according to the frequency of use to ensure long-term reliability.