Weighing room daily maintenance and use precautions

(A) daily maintenance content
In the biopharmaceutical industry, the daily maintenance of the weighing room is crucial, related to its performance and service life, the following are some key points of daily maintenance:
First, the equipment is wiped clean. Before cleaning and wiping the machine, be sure to turn off the power first to ensure the safety of the human machine, which is the most basic and easily ignored point. After each work is completed, the box, the wall panel, and the ground should be cleaned, such as you can use a clean cloth to carefully wipe the weighing room workbench and the outer surface, after work operators should also carry out a comprehensive surface wipe of the equipment, and through visual inspection of the surface of the equipment is clean and clean, to ensure that there is no residual dust, stains, etc.
Secondly, the maintenance of the filter can not be ignored. After the replacement and installation of each filter, it is necessary to record the initial pressure difference, and when the final resistance reaches 1.5 times the initial resistance (about 380Pa), it is necessary to clean or replace the primary and middle effect filters, so as to ensure that the effect of air purification is always in good condition.
In addition, air volume regulation is also a key part of daily maintenance operations. 10% of the air volume in the weighing room needs to be discharged to the outside, and the air volume can be adjusted by the knob on the panel, and it should be regularly checked and adjusted as needed to ensure the normal circulation of the air in the weighing room and maintain a reasonable pressure difference with the external environment, so that the internal can maintain a stable negative pressure environment, ensure the cleanliness of the operating area, and avoid dust, reagents and other spilled into the external area.
(2) Safety and taboos during use
When using the weighing room, the relevant safety and taboo requirements must be strictly observed to ensure its normal function and avoid safety hazards.
First, in terms of the use environment, the weighing room is an indoor type of equipment, which is prohibited from outdoor use. At the same time, it is necessary to choose the ground and wall structure that can bear the weight of the equipment, the ground of the installation part is required to be smooth, and the installation shall not be implemented in the inclined state, otherwise, it will cause the box deformation and other faults. It is strictly prohibited to use in low temperature, high temperature, high humidity, dew, dust, oil mist, chemical corrosion, and other harsh environments, because these harsh environments may damage the parts inside the equipment, affect its purification function and the accuracy of the weighing, and the equipment itself does not have explosion-proof ability, so it is also strictly prohibited to use in flammable and explosive environments.
Second, in terms of cleaning, it is prohibited to wash with water, so as not to damage the electrical components of the equipment or cause personal injury, you can use such alcohol, and stainless steel cleaners to clean the equipment itself regularly.
In addition, it should also be noted during the operation process that the power supply, vacuum pump, sensor, and other components should be carefully checked before the operation of the equipment to ensure the normal operation of the equipment; During the weighing operation, avoid touching the inside of the device or the sensor part of the hand or other parts to avoid accidents or damage to the device. If there is any abnormal situation during the operation of the equipment, it should be stopped immediately for inspection, and the fault should be removed before operation. When cleaning and maintenance, care should be taken not to damage sensors and other precision components, so as not to affect the accuracy and service life of the equipment.