Main points for maintenance of ultrasonic cleaner 1. It is strictly prohibited to splash conductive liquid (such as water) from the air inlet at the top of the ultrasonic control cabinet. Otherwise it will cause serious damage to the line system of the washing machine. 2. Keep the machine clean and turn off the power when not in use. 3. Avoid collision or severe vibration to the machine. 4. Keep away from heat sources. 5. The machine should avoid storage in a humid environment. 6. The continuous working time of the machine should not exceed 4 hours. If the continuous working time is too long: the ultrasonic adjustment knob should be rotated to the "0" position, and the cooling fan should continue to work. When the ultrasonic cleaning is not activated, the ultrasonic control cabinet continues Allow to cool for at least 2 minutes. 7. After a long-running washing machine, you should first adjust the power knob to zero before shutting down, and use its fan to work for 3-6 minutes and then shut down to ensure that the internal heat of the power supply is dissipated. 8. The cleaning fluid should be precipitated, filtered or replaced in time to ensure the cleaning effect. In order to make the system washing machine work normally for a long time, in addition to avoiding irregular operations, it is also necessary to regularly maintain and maintain the washing machine, and do the following work: ①Regularly clean the contaminated cleaning fluid of the oil storage tank. ②Make the oil pump run once regularly, at least 10mmin each time. ③After the washing machine is used up, cover it with a cover to prevent dust and moisture. Routine maintenance-after each operation 1. Rinse the hose and filter connected to the cleaning agent to remove any detergent residues to help prevent corrosion. 2. Turn off the water supply system connected to the high pressure washer. 3. Pull the trigger on the servo gun lever to release all pressure in the hose. 4. Remove the rubber hose and high pressure hose from the high pressure washer. 5. Cut off the connecting wire of the spark plug to ensure that the engine will not start (applicable to the engine type). Electric type: Turn the power switch to the "on" and "off" positions four to five times, 1-3 seconds each time, to clear the pump of water. This step will help protect the pump from damage. Engine type: Slowly pull the engine start rope 5 times to remove water from the pump. This step will help protect the pump from damage. Regular maintenance --- maintenance every 2 months 1. Regular removal of fuel deposits from the fuel tank will extend the service life and performance of the engine. Fuel deposits can cause damage to fuel lines, fuel filters and carburetor. 2. When not using the high-pressure cleaner, use the Kärcher pump protection kit (9.558-998.0) to protect your high-pressure cleaner. The protective suite of the pump is especially used to protect the high pressure washer from corrosion, premature wear and freezing. Also, apply lubricant to the valve and sealing ring to prevent them from getting stuck. Electric type: 1. Turn off the high pressure washer. 2. Disconnect the high-pressure hose and servo gun rod from the pump. 3. Connect the valve to the pump protection tank and open the valve. 4. Start and turn on the washing machine; suck all the substances in the tank into the pump. 5. Turn off the washing machine; now the high pressure washing machine can be stored directly. Engine type: 1. Turn off the high pressure washer. 2. Disconnect the high-pressure hose and servo gun rod from the pump. 3. Connect the valve to the pump protection tank and open the valve. 4. Ignite and pull the starting rope; draw all the substances in the tank into the pump. 5. Now the high pressure washer can be stored directly. Maintenance instructions for cold and hot water pressure washer 1. Weekly maintenance Check the oil level If the engine oil is emulsified (ie, the water in the engine oil tank), contact the after-sales service immediately. Clean the water inlet filter. 2. Monthly maintenance Clean the detergent filter. Carry out maintenance operations, cleaning and adjustment. 3. 500 hours of annual maintenance Change the oil. Unscrew the oil drain bolt and drain the waste oil into a designated container to avoid polluting the environment. After draining the oil, reinstall the bolt and add new oil to the middle of the required scale. Four. Clean the heating pipe fume If the heating tube is blackened by oil smoke in a short time, you should ask the after-sales service personnel to check the burner. If the burner is damaged, it will increase fuel consumption and pollute the environment. 5. Heat pipe to remove scale If the device is repeatedly turned on and off at the maximum operating pressure or if the high-pressure pipe is not connected at the maximum water flow (the pressure on the pressure gauge is above 10 BAR), both of these conditions can cause scale formation. We recommend that you contact the after-sales service personnel to clean the scale and check the dosage of the descaling solution. 6. Clean the fuel tank Remove the fuel tank Rinse the fuel tank carefully. If it is washed with water, let it dry after washing. Reinstall the fuel tank on the equipment. 7. High-pressure pipe Check the high-pressure pipe carefully All high-pressure pipes must be safe, and the working pressure range value and the manufacturer's mark must be printed on it. The high-pressure pipe must not be twisted, twisted, pressed or damaged Damaged high-pressure pipes are very dangerous and must be replaced immediately. It is dangerous to use a low-pressure pipe as a high-pressure pipe or to repair it casually. You can only use marked and tested high-pressure pipes (the original high-pressure pipe of the equipment meets all safety requirements) 8. Connect the wires The wire must not be damaged, and if damaged, it must be replaced immediately. Nine. Use it after leaving it for a long time If the device is left for a long period of time, there may be calcification, which will make the device difficult to start or be damaged. In order to avoid overheating and damage to the motor, we recommend that you start the device three times before starting. Precautions for maintenance Because the internal active devices of the machine mainly use electric vacuum devices, the internal voltage is relatively high, so care should be taken during maintenance, and the voltage range of the multimeter must be accurately adjusted when measuring the voltage. Pay attention to safety for the measurement of higher voltage parts. For the high-voltage power supply part, the static (non-energized) measurement is mainly used. If there is no special emphasis below, the MF-47 multimeter is used. The machine is composed of two parts: the ultrasonic source and the transducer. When overhauling the machine, you must first ensure that the transducer is intact. The inspection method is to use a megohmmeter (shake meter) with a voltage of 1000V. The insulation resistance value of the negative electrode (that is, the resistance between connector plugs 3 and 4) is required to be greater than 20MΩ. If the resistance is found to be very small or even close to zero ohms, it is certain that the transducer has been damaged and can only be repaired by the manufacturer. Or replace with a new transducer. The generating source is also called an ultrasonic power supply. Its function is to convert the power frequency power supply into an electrical signal higher than the audio frequency or at the high end of the audio frequency required by the ultrasonic transducer. For XDS-5C type transducers, it generally works in 18KHZ + 0.5KHZ. The working principle of the generating source is to push the transducer after amplifying the signal generated by G1 oscillation through several stages. However, due to the particularity of the work of the electronic tube, there are some differences from the common transistor circuit in some places. The voltage values ​​mentioned below are measured when the low voltage is turned on but the high voltage is not turned on, and the following specific analysis. The signal oscillation part is composed of G16N3 as the core. 6N3 contains two basically the same transistors. One constitutes the RC oscillation circuit. The external timing element that determines the oscillation frequency is R1R2R3R4C1C2C4C5. C1C2 is the frequency adjustment double capacitor on the panel. Adjusting W1 can not only Adjust the oscillation intensity of G1, while the oscillation frequency also changes. It is best to take into account the higher amplitude of the oscillation voltage and the exact oscillation frequency during the adjustment process. When adjusting C1C2 (frequency adjustment), the frequency can be changed from 16KHZ to 20KHZ. The ZD5 in the picture is a 110V / 8W light bulb, which is used as a temperature compensation resistor. The check point of the oscillation level signal is at the upper end of W2. By detecting the voltage, especially the frequency value, at this point to the ground (the case can be regarded as a DC location), many problems can be seen, and the scope of fault inspection is narrowed. Therefore, the signal input terminal of the frequency meter is connected at this point. If the reading of the frequency meter is zero or a very small number, it can be seen that the pre-stage has not started. At this time, carefully adjust W1 to see if it has improved. If it is still the case, focus on checking whether C1 has a bump and whether the G1 power supply is normal. If the frequency deviates more than 18KHZ, it is important to check whether there are changes in several peripheral resistors. The G1 oscillation signal is adjusted by the power potentiometer W2 and sent to the gate of G26N8P. G2 is also a package with two identical transistors. The signal amplified by one tube is coupled by C9, and R13 and R14 are divided into another tube. G3 grid, at the same time sent to the other half of G2 tube for inversion, sent to G3 grid through C10. L1 is the load inductance of G3, the amplitude of the output of the two tubes inside G3 is basically equal, and the signals with opposite phases are sent to the two gates of G4 through L1 respectively. The working conditions of G2 and G3 can be determined by measuring the voltage on L1. When adjusting W2, the voltage on L1 should change around 0V-20V (AC voltage). There are relatively few G2 and G3 faults. It is important to check the capacitance on the signal path. If half of the tubes are not working properly, check the bias resistance. Except for L1, G4 peripheral components are B4. It is a coupling transformer. The primary voltage is higher, about 600V, and the secondary signal voltage is about 0-45V (AC voltage). The amplitude changes with the adjustment of W2. The anode voltage of G1——G4 is rectified by BG1—4 through ZL1, C16 and filtered by the relevant winding of B2, G9 and G10 are stabilized, and then obtained by the corresponding resistance voltage division. The anode voltage of G5 and G6 is added to the B6 primary center tap by the rectifying and filtering of the B5 winding. The voltage here is 1200V (DC). This voltage is turned on at the same time as the high voltage is turned on. If you only need to check the working strength of G5 and G6, the high voltage The remaining fuses in the channel are disconnected for complete safety. If you must measure together with the post-level, pay attention to safety. G5 and G6 should pay attention to the two short-circuit resistances R23 and R24 connected to the anode, and the AC voltage across the B6 secondary pole will be unequal. It is generally determined that the working state of the G5 and G6 level is mainly to disconnect the BX7-9 to measure the B6 secondary voltage. At this time, open the low voltage, wait for the time relay to expire, open the high voltage switch, adjust the power potentiometer, the B6 secondary center tap should be It is --56V (DC voltage) voltage, the other two terminal voltages are 120V (AC voltage) (power adjusted to the maximum), if the machine is working normally (BX7-9 is not disconnected), the voltage can reach 300V (AC voltage) ) (The black test lead measures the signal and the red test lead is grounded). G7 and G8 form the output stage. This part of the voltage can reach 2200-3000V (DC voltage). The general method can no longer directly measure the voltage. The search for this part of the fault component is mainly based on static measurement, and the commonly used tools are megohmmeters. If it is possible to find a 2500V-level shake meter as the best, there are relatively many failures in this part, which will be discussed in detail below. [Attention] This part involves high voltage, non-skilled professionals should not rush to repair, so as not to cause personal and property damage! 380V three-phase power is boosted by three times through a three-phase step-up transformer, then by BX7-9, it is rectified by six 2CL56G10KV / 1A three-phase full-wave rectifiers, filtered by ZL4, C22 and added to the center end of output transformer B7 Two anti-short-circuit resistors R31 and R32 are added to the anodes of G7 and G8. Due to the higher voltage, the failure rate of this part is higher. In general maintenance, pay attention to moisture, dust and frequent cleaning. It is best to use an insulating paint to prevent the ignition of the high voltage rectifier silicon stack in a humid environment. The components that are easily damaged in this part are G7 and G8. Generally, the anode breaks down the gate, causing a high voltage short circuit. This can be measured by shaking the table during which the insulation resistance should be greater than 30MΩ, but not infinite. The high-voltage rectifier silicon stack is also a relatively easy-to-damage component. If the high voltage is disconnected as soon as it is turned on and the BX7-9 is blown, it is necessary to check the silicon stack with a shaker. The forward and reverse resistances should be quite different. When repairing the breakdown of the anode of the electron tube to the grid, pay attention to whether the resistance on the grid of the tube is blown, and whether the two filter capacitors C14 and C15 are broken, otherwise the power output is still abnormal after the tube is changed. The rest of the contactor control part is relatively simple in principle, and the main functions are as follows: J1 provides 220V (AC voltage) to the input terminal of the voltage regulator, which is supplied to the filament transformer after the voltage regulator is stabilized, and others that require 220V (AC voltage) power supply local. JS and J2, R37, R38 guarantee to add half of the filament voltage to G7 and G8 for a few minutes at startup to warm up. K2 and J4 ensure that the high voltage cannot be turned on when the power potentiometer is not at the zero position to prevent starting current. J6 turns off the high voltage when the high voltage current of 2200V (DC voltage) exceeds 1A. Typical failure analysis: ①When the low-voltage frequency meter is turned on, 0.01KHZ is displayed, and no power is output after the high-voltage is turned on. Because the frequency meter display is abnormal, it can be judged that G1 has not started. After adjusting W1, it is found that the frequency adjusting capacitors C1 and C2 have a bumping phenomenon. Troubleshoot after repairing with tools. ② After power on, the frequency meter shows normal, but no power output when high voltage is turned on. In this case, first check whether the voltage on L1 is normal to determine what level the fault is in. If it is normal, the level 1 is checked backwards, but it should be noted that the signal is divided into two channels after L1. Generally speaking, one signal is not Normal will not affect the work of the other way. If the signal disappears at a certain level, focus on the power supply and the coupling transformer. The fault in this case is the B4 primary open circuit. ③ The output current of starting is low, only 1.2A-1.5A, the transducer sounds. The fault with low power involves many parts. It may be that there is only one way to drive the signal. This may be manifested in the voltage across the B6 secondary (AC voltage to ground, see the corresponding discussion on the measurement method) asymmetry, which can be followed by The level finds the signal voltage to find the fault. It is also possible that one of the final power amplifier tubes does not work, which can be determined by the temperature of the air outlet after the machine has been working for a period of time. There is also a very rare possibility that the anode voltage of G7 and G8 is low. It is important to see whether there is an open circuit phenomenon in BX7-9. In this example, the open voltage of BX8 causes the voltage after rectification to be low, but the fuse will not blow by itself. The cause of the fuse should be found out so as not to cause a larger fault. The cause of the fault in this case is that the rectifier silicon stack board is ignited due to moisture, and the BX8 fuse causes the G7 and G8 power supply voltage to be low and the output voltage to be low. ④The fault phenomenon is the same as the case of ③, but the transducer is silent. This fault is very special. Except that the secondary voltage of B6 is low, the previous levels of amplification are normal, and the user is asked to check the cause of the fault because the tube is damaged and replaced. This fault occurs after careful search: BX7— 9 Fully blown, after removing other faults, the machine with fuse returns to normal. Generally speaking, if there is no anode voltage, the screen current should not be large. ⑤ The fault is as soon as the high voltage is opened, the high-voltage contactor is immediately disconnected, and sometimes the BX7-9 will melt. This type of fault phenomenon indicates that there is a serious short circuit fault in the high-voltage circuit. You can use the shake meter to check the insulation resistance of each component of the corresponding high-voltage part of G7 and G8 to ground. If there is a lower resistance value, first disconnect the capacitor and check each one. , The focus is on silicon stacks and tubes. A special case is that if the silicon stack is damaged more than two at a time, it is necessary to pay attention to whether there is a possibility of a secondary inter-turn short circuit in the three-phase transformer causing the secondary pole voltage to rise, and do not risk turning on the high voltage again. If you want to power on the test, you must at least disconnect the tube, and you must be more careful when you power on. It is best to be able to determine the fault without powering on to ensure complete safety. ⑥ The output current is very large after starting, but the transducer is silent. Check the transducer and matching inductance. The transducer may be damaged to cause a short circuit of the load. After the short circuit of the transducer is found, it must be replaced in time to avoid more serious consequences. ⑦ The output current is normal and the frequency is normal, but the cleaning effect is not good, and the product is often not cleaned halfway. This kind of failure is common for the machine after the transducer is replaced. The main reason is that the installation position of the new transducer is not correct. The upper transducer should be adjusted to about 2-3CM away from the upper end of the product. The lower transducer can be close to the mesh belt. . And the upper and lower transducers are relatively staggered to prevent the ultrasonic vibrations from canceling each other out. ⑧Burn high-pressure silicon stack after starting Such problems are more complicated: I think there are several possibilities; (1) There is a serious short-circuit phenomenon in the high-voltage circuit. This kind of fault is generally accompanied by high-voltage insurance burnout. This kind of fault can be determined by a megohmmeter with a voltage as high as 2500V DC. The resistance of the case can be used to find the damaged component. This kind of failure may be caused by the electron tube. (2) There is a short circuit between the primary turns of the three-phase step-up transformer; the secondary voltage rises more. This may require a single-phase voltage regulator and a self-made voltmeter that can measure high-voltage voltage; disconnect the transformer primary and secondary. Connect the self-made voltmeter to the stage, and make the insulation well (as shown in Figure 3). Carefully adjust the voltage of the voltage regulator from as low as 220V AC voltage to compare whether the three-phase results are consistent. (3) The output transformer is damaged. FU—5F high-power tube failure The final power tube FU-5F works in a high voltage state, and the application conditions are relatively poor under industrial conditions. Due to various reasons, the early failure of the tube is more common. According to our experience, as long as some precautions are strictly observed, this type of failure is completely Can be avoided. Matters needing attention: ①Ensure the normal air volume required by FU-5F air cooling, pay attention to regularly check whether the fan pipeline is unobstructed, and regularly clean up the dust accumulation on the fan blade and the dust accumulation in the FU-5F radiator. Special emphasis is placed on the fan steering after changing the power supply! ② Regularly check the output voltage of the AC regulator to ensure that the voltage deviation of the FU-5F filament is not greater than 10%, especially not too high, so as not to shorten the service life of the electronic tube. It is best to replace it with the cap after replacing the new tube, or Remove the oxide layer above. ③After the machine is turned off, the fan must continue to work for 5-15 minutes before stopping the work, so as to avoid the sudden cooling of the pipe. Usually try to avoid the sudden cold and hot situation. Don't let cold water drop on the hot glass tube shell, so as not to cause the tube shell to burst. ④ Ensure that the output current of the final power tube (that is, the screen current) does not exceed 2A. FU—5F electron tube damage situation and determination method Due to the special structure of the electric vacuum device, the determination of damage is more complicated. The following refers to some books and personal experience summary to discuss with you. The reference books are mainly "Practical Maintenance Manual for Large Launch Tubes" (China Radio and Television Press 94 In November, the book mentioned and the common faults in our work are the following faults: If the damage is caused by the quality of the pipe, you can contact the pipe manufacturer for replacement. At present, the only domestic manufacturer is Beijing Dongfang Electronic Tube. Factory, the manufacturer requires that the quality of the pipe must be within three years after the pipe's date of delivery. And the instruction manual and certificate of conformity are required to be complete and fill in the corresponding content in the instruction manual. Completely packed in original original sponge packaging materials and shipped back to the factory for replacement, ①Air leakage is the main cause of high-voltage short-circuit. The tube shows that there is evaporate in the wall of the tube, especially the top of the tube is exhausted and the seal is white. The tube is not bright or very dark after the filament voltage is applied. The insulation resistance of the cathode is very low, only 5-6MΩ, and red, pink or purple light can be seen in the tube. At this time, check again with a multimeter to see if the resistance can be found. If there is a resistance, it is a pole. If there is no resistance, it is a leak. Generally, the insulation resistance should be high but not infinite. If the resistance is infinite, there is no flash in the tube. Listen carefully in the tube The sound of a fire is definitely leaking. Part of the reason for the air leakage is a defect in the manufacturer's manufacturing process. I will not say much here. The reasons related to the user are that the tube is subjected to external forces, especially when the tube is impacted by external force during installation and transportation, the glass bulb bursts. The user should use the original packaging when transporting Materials are packed and transported carefully. Be careful when installing, especially when you install the three copper caps on the top of the tube and the screen electrode, you must hold the cap by hand when you tighten the screw, so as not to break the pin or crack the seal; if it will be stored for a long time The pipe leaks slowly, and various external conditions will corrode the metal material of the pipe to cause gas leakage. Therefore, the use of the pipe as soon as possible after the purchase will increase the possibility of pipe leakage after a long time. Poor cooling when the tube is working will cause a large amount of gas to be released in the tube, and the performance is like a leak. Therefore, it is necessary to ensure cooling when working, and each electrode must not be overheated. ②The anode breaks down the grid, generally there is a leak in the tube or too many harmful gases inside. ③ Cracking or perforation of the pipe wall, the general reasons are: insufficient cooling, causing local overheating of the pipe wall; poor contact between the cap and electrode lead ring, causing local overheating; the machine has strong detuning or parasitic oscillation, which requires the machine to work Immediately follow the resonant frequency of the transducer, pay attention to the reading of the frequency meter. If you find that an individual tube is overheated during operation, check whether its driving signal is superimposed with a parasitic oscillation signal. And it is eliminated by changing the size of the filter capacitor. After the tube is damaged, carefully check the red paint at the connection between the glass bulb and the copper radiator. This is a heat-resistant paint. ④ The output current drops. For the old tube, if it is used for more than ten months, this is a normal aging phenomenon. If the requirements cannot be met, consider replacing the tube. For some new tubes that have been used for less than a month, they can be compensated by increasing the output voltage of the oscillation stage. We offer a wide range of wholesale customizable cosmetic bags and cases to cater to your specific needs. Our collection includes various sizes, styles, and materials to suit different preferences and budgets. Whether you are looking for a compact pouch for everyday use or a spacious case for travel, we have got you covered. Our bags and cases can be personalized with your logo, brand name, or any desired artwork, making them an excellent promotional tool for your business. With our high-quality craftsmanship and attention to detail, you can trust that our products will not only showcase your brand but also provide durability and functionality. Contact us today to discuss your wholesale and customization requirements. pvc cosmetic bag,cosmetic travel bag wholesale,canvas cosmetic bag Guangdong Metagarden Trading Co.,Ltd , https://www.smtfurniture.com