I. Introduction to Structure and Function

The Pass box is a special device used to transfer items between clean rooms and non-clean rooms, or different cleanliness levels within clean rooms, in order to reduce the number of times the clean room is opened and minimize contamination. Its structure usually includes window frames, doors, sealing strips, operating handles, etc., with good airtightness and easy operation.

II. Preparations before Operation

1. Check the sealing of the Pass through box to ensure it can close tightly.

2. Ensure the space on both sides of the Pass through box is tidy and free from obstructions.

3. Prepare the items to be transferred, ensuring they are clean and uncontaminated.

III. Correct Procedure for Transferring Items

1. Open one side of the Pass through box, place the items inside.

2. Close the door on that side to ensure a tight seal.

3. Notify the other person to open the door on the other side and retrieve the items.

4. After the other person closes the door, open the door on your side again, retrieve the empty tray or basket, close the door to complete the transfer.

IV. Notes and Regulations

1. When transferring items, try to avoid opening the clean room doors on both sides of the Pass through box to reduce contamination.

2. Items being transferred should be cleaned and disinfected beforehand to ensure no contamination.

3. During use, the Pass through box should maintain good sealing to prevent outside air from entering.

4. Do not place too many items in the Pass through box to avoid affecting its sealing.

5. Operators should wear clean work clothes and gloves to avoid contaminating the Pass through box.

V. Cleaning and Maintenance

1. Regularly clean the Pass box using a dust-free cloth to wipe off surface dust.

2. Regularly inspect and replace the sealing strips of the Pass through box to ensure their sealing performance.

3. Regularly lubricate the tracks and pulleys of the Pass through box to ensure smooth operation.

4. If any damage or malfunction is found, report it promptly to avoid affecting normal use.

VI. Troubleshooting and Inspection

1. If the Pass through box cannot open or close properly, check if the operating handle is damaged or loose, and adjust or replace it promptly.

2. If the sealing of the Pass through box is not tight, check if the sealing strip is aging or damaged, and replace it promptly.

3. If there are abnormal noises or jamming during use, check for foreign objects or damage on the tracks and pulleys, and clean and repair them promptly.

VII. Safety Instructions

1. Do not transfer items while the Pass through box is not closed to prevent items from falling or contaminating.

2. Do not insert hands or other objects into the gaps of the Pass through box to avoid injury or damage.

3. When cleaning and maintaining the Pass through box, disconnect the power source first for safety before proceeding.

4. Regularly provide safety training to operators to enhance safety awareness and ensure the safe use of the Pass through box.

By following the above steps and precautions, the correct use of the Pass through box can be ensured, improving the cleanliness of the clean room and reducing contamination risks. It also helps extend the lifespan of the Pass through box, reduce malfunctions, and increase production efficiency.