Be wary of using mobile phone electromagnetic waves to interfere with the counterfeit counterfeit machine, how to correctly face the counterfeit detector abnormality

Be wary of using mobile phone electromagnetic waves to interfere with the counterfeit counterfeit machine, how to correctly face the counterfeit detector abnormality

The relevant personnel found through experiments that the G network (GSM) mobile phone can cause significant interference to the money detector within a distance of 25 to 30 cm. The money detector does not emit an alarm when checking the counterfeit banknote, while the C network (CDMA) mobile phone There is no interference. Moreover, most of the money detectors on the market currently fail under the electromagnetic interference of mobile phones. Such phenomena have been used by some criminals to implement the use of mobile phone electromagnetic waves to interfere with the use of counterfeit currency detectors. It is understood that there have been a number of new types of counterfeit currency cases in Zhejiang and Hangzhou that have used G-network (GSM) mobile phones to talk at distances of 25 to 30 centimeters from the money detectors, using mobile phone electromagnetic interference to make certain money detectors malfunction. .

First, the real case

The criminal suspect uses counterfeit money to purchase valuable commodities such as tobacco and alcohol, securities or household appliances. When the salesperson uses the money detector to check the counterfeit currency, the suspect uses the mobile phone to talk at a close distance, thus making the money detector temporarily “aphasia”. ", no alarm sounds. Counterfeit money is only found when the merchant checks the general ledger at the end of each day's business, but it is too late.

Second, preventive measures

1. When using the money detector, the public should pay special attention to the personnel who use the mobile phone continuously during the banknote verification process. If a suspicious situation is found, it should be promptly reported to the police;

2. Whenever possible, place the money detector in an open place to prevent unrelated persons from approaching:

3. Do not place the money detector on a counter and other places where foreigners can easily get close. Don't rely too much on the money detector. It is necessary to enhance the ability of the naked eye to identify counterfeit money. Pay special attention to the RMB of the serial number and the heavy number. If you find the counterfeit currency, you should immediately report the alarm.

Detector use environment

The currency detector is suitable for use in ambient temperatures from 0 °C to 40 °C. Please do not use it in a damp environment to avoid the risk of electric shock.

In order to avoid machine error identification. Before the banknotes are marked, the abnormal coins (such as banknotes filled with paper, washed banknotes, banknotes with very serious stains, and banknotes with severe cracks) are taken out.

Plug the power cord of the money detector into the power socket, and turn on the power switch to check the banknotes immediately. The different functions of the machine will display different authentication functions after booting. You can press the function key to select the required authentication mode, and the optical inspection status. The counterfeiting ability is low, and it is only suitable for counting small denominations of banknotes. The magnetic detection state is generally falsified, and the intelligent state has high falsification ability. It can carry large amount of small amount, and the clearing state has the highest ability to verify, and can carry out large amount of small amount. Small amount of large amount. The total amount of state is high, and it can display the total amount of banknotes and the number of sheets (there are voice reports: how many yuan, how many). Press the accumulate key function to accumulate the number of counts of several counts. Press the preset key and then use the “+” and “-” keys to set the number of counts required for pre-setting. Click to set the number to automatically stop. If there is an abnormal coin in the process of inventory, the machine will automatically stop reporting (there is a voice report: this banknote has doubts.), take the banknotes of the banknote to continue counting or press the reset button to continue counting.

The multi-country currency counter function can be used to check the currency counterfeiting of the corresponding country according to the currency key.

In order to improve the discriminating ability, the default is not to order the fourth set of RMB. If you need to check the fourth set of RMB, please press and hold the function key and the selection key for 5 seconds to open the compatible fourth set of RMB. Press and hold the function key and the selection key for 5 seconds to close the fourth set of RMB.

The company's counter money detector has a self-test function. When the machine is turned on, the display window will display “0”. If there is abnormal power, other characters and codes will be displayed. Different codes indicate different faults. We can Different fault codes analyze the cause of the fault. The following describes the troubleshooting methods for general troubles of the money counter. Be sure to turn off the power when troubleshooting.

When the CE1 is turned on, it indicates that the optical inspection is faulty. Check if the machine is placed in a place where the light is too strong. Change the position of the machine to avoid strong light.

When the CE2 is turned on or the machine is not turned, it indicates that the code wheel is faulty. First check if the code wheel device has accumulated dust and use a brush to clean the dust. Check whether there are coins or other items stuck in the machine channel when the machine is turned on after starting the machine, or check if the belt of the machine is detached and repair it.

When the CE3 or CE4 is turned on, it indicates that the count is faulty on the tube. First check whether the tube has dust on the tube and clean it with a brush.

When the CE6, CE7, CE9 or CE0 is turned on, it indicates that the magnetic head is faulty. First check whether there is dust on the surface of each magnetic head. Check if there is any debris in the groove above the magnetic head and clean it with a brush. Check if there are any interferences such as mobile phones, electric drills, magnetic fields, etc., and avoid them. If you can't solve it, you need a professional to debug.

When the CE5 or CE8 is turned on, it indicates that there is a fault in the photocoupler and the banknote optocoupler. Check whether there is dust in the photocoupler and the photocoupler at the banknote, and clean it with a brush.

When the CEA is turned on, it indicates that the button is faulty. First check whether several buttons are normal, clear the stuck debris or replace the button.

When there is no reflection of the power on the machine, first check whether it is not a power failure, whether the power plug is firmly inserted, and whether the fuse is burnt out (the fuse is in the power socket of the machine).

After the machine is used for a period of time, the resistance rubber will wear out. If the counting is not accurate or the banknote is not smooth, you can adjust the vertical adjustment screw of the banknote counter clockwise to solve it. Tightening when adjusting clockwise and relaxing when adjusting counterclockwise.

When the noise of the machine is too large, you can check whether there is dust or debris on the turning wheel of the machine. Please use a flat-blade screwdriver to clean up the debris on the rotating wheel.

Maintenance method of the battery type detector with the battery type: pay attention to the direction of the locking cap and the plug when inserting and removing the DC end of the adapter. Do not pull the plug hard. When the battery is low, it will automatically shut down and when it is not used for a long time, you need to turn off the power switch and charge it. Avoid excessive discharge causing battery failure. The machine battery should be recharged once it is not used for three months, and it will maintain normal power. Proper use can enhance battery life.

Please turn off the power in time when the following conditions occur. Non-professionals should not disassemble or assemble.

1. The performance of the machine is abnormal. If it cannot be solved by the above method;

2, according to the instructions, the correct operation can not be used;

3. When the liquid is spilled onto the machine;

4. When the machine is seriously damaged;

Warning note:

1. To ensure personal safety, the power outlet must have a safety ground wire.

2. It is forbidden to use the machine without adults.

3. You cannot use a faulty machine.

4, the hand can not be close to the banknote wheel.

5. It is forbidden to put items other than banknotes into the banknote