Mechanical coded locks (three sets of digital locks)? Suppose the three groups of numbers of the password lock are (21); (56); (33):
1, no matter which group of numbers the marking line is facing, it needs to rotate clockwise for two times, and then continue to rotate until (2 1) is aligned with the marking line on the fixed disk. ?
2. Rotate counterclockwise once, and then continue to rotate to align (56) with the marking line on it;
3. Turn clockwise to make (33) align with the mark line above and stop, and the combination lock will be opened. ?
4. After the three groups of numbers are checked correctly, do not move the combination lock, then insert the key into the lock hole to unlock it correctly, and twist the handle to pull it out to open the cupboard door.
(1) Safe (box): It is a special container. According to its functions, it is mainly divided into fire-proof safes, anti-theft safes, anti-magnetic safes, fire-proof anti-magnetic safes and so on. Each kind of safe has its own national standard. Most safes on the market are the first two types. According to different working principles of passwords, anti-theft safes (boxes) can be divided into mechanical insurance and electronic insurance. The former is characterized by cheaper price and more reliable performance. Early safes (boxes) were mostly mechanical ones. Electronic safe (box) is an electronic lock that applies intelligent control methods such as electronic password and ic card to safe (box). Its characteristic is convenient to use, especially in places where passwords need to be changed frequently, such as hotels.
(2) Advantages and disadvantages of various passwords used in common safes:
Among the common safe products in the market, the commonly used passwords are: mechanical, electronic, credit card, fingerprint and remote control password box. , the above types are commonly used. The advantages and disadvantages of different password types are analyzed as follows:
1, the mechanical password is relatively stable and durable, and no power supply is needed. However, the operation method is slow to learn and inconvenient to operate, which requires professionals to modify the password.
2. Electronic password has the advantages of quick operation and simple password modification. Although the price of electronic password lock has decreased and the quality has improved in recent years, it is not as stable and durable as mechanical password because of its complexity.
3. The card lock can open the door of the safe with your own bank card, but the IC card is not easy to use with strong magnetic things!
Fingerprint is hard to find in this world, so fingerprint identification technology is used in safe, which is both confidential and easy to use. However, the opponent's dry humidity requirements are strict! The recognition of finger position is also relatively dull! Even the same finger may not be recognized if it is placed in a different position before it is lost and before it is opened!
5. If it is a safe with high anti-theft performance, the selected safe should not have an emergency key (spare key) hole, because although the emergency key is hidden, if a thief finds it, he can directly use this emergency key to open the safe, which has great security risks. But if you choose this kind of safe, if you really forget the password and key, you can only open it by external force.
(3) Problems and their solutions:
(1) Question 1: After the finger is pressed, the system is slow or unresponsive.
Possible causes and elimination methods:
1, battery undervoltage, please replace the battery;
2, dry fingers, please add water.
(2) Question 2: In the process of use, the registered fingerprint is difficult to pass.
Possible causes and elimination methods:
1. Is the finger pressed correctly? Please place it correctly.
2. Do not collect fingerprints when registering. Please re-register.
3. Finger texture is poor, please replace other fingers.
4, dry fingers, please add water.
(3) Question 3: After pressing the "Start" key, the screen lights up but does not display, and the buzzer sounds.
Possible causes and troubleshooting: The battery voltage is too low, please replace the battery.
(4) Question 4: Pressing any key has no response.
Possible causes and elimination methods:
1. The battery is dead. Please use the external standby power supply and replace the internal power supply immediately after opening the door.
2. Unplug the power supply and reinstall it;
3C certified safes (cabinets) are called safes according to the actual height (excluding caster height) of the cabinets above 450 mm, and those with the actual height below 450 mm (including 450 mm) are called safes.
According to the different working principles of passwords, anti-theft safes can be divided into mechanical insurance and electronic insurance. The former is characterized by cheaper price and more reliable performance. Early safes were mostly mechanical safes. Electronic safe is a kind of electronic lock with intelligent control means such as electronic password and ic card, which is characterized by convenient use, especially in hotels and other places where passwords need to be changed frequently.
The concept of safe in the actual market is rather vague. From the perspective of insurance, safes can be divided into fireproof safes, anti-theft safes, anti-magnetic safes and so on.
1. Placement of important documents and valuables. Such as contracts, contracts, birth certificates, academic certificates, real estate licenses, notarial certificates, etc. , to avoid misplaced when needed.
3. Place a small amount of emergency or spare cash, commemorative coins, valuable collectibles or very personal items, stamps, coins, antiques, jewelry, jewelry, gold watches, etc.
3. It is not suitable for others to see personal items and personal special items.
4. Place articles, medicines, dangerous goods (such as guns) and adult articles out of the reach of children.
The lock-free trend of modern family decoration and the increasingly frequent social life require foreign employees at home.