About HUDA Tester
all
About HUDA Tester
HUDA Tester Product
HUDA Tester Service
Humidity Test Chamber
Environmental test
About Test Chamber
About products
Rubber and Plastic Test

About HUDA Tester

Battery Test Equipment

A set of battery testing equipments!Battrery Short Circuit Test Chamber Battery Drop Tester  Battery Explosion-Proof Test Chamber Battery Attitude Test Chamber Battery Crush TesterBattery Impact Tester Battery Needle Puncture Tester Battery Burning Test ChamberBattery Thermal Shock Test Chamber Battery Crush & Nail Penetration Tester Battery Charge and Discharge Tester

What's the purposes of electromagnetic vibration test for electronic products?

In the process of transportation, use and storage of electronic products, collision and vibration will occur, which will cause adverse consequences, seriously affecting the use of the product and causing unnecessary economic losses. In order to avoid this situation, we must know the vibration resistance life of the product in advance. This is also the main purpose of electromagnetic vibration test of electronic products. High Frequency Electromagnetic Vibration Table Electromagnetic vibration table is widely used in defense, aviation, aerospace, communications... 1. The purpose of the vibration test is to simulate a series of vibration phenomena, to test whether the product can withstand the test of the vibration environment during transportation or use during the life cycle, and to determine the required standards for product design and function;2. The vibration test is to confirm the reliability of the product and to screen out the defective products before leaving the factory, evaluate and improve the reliability of the product;Electromagnetic shakers include sinusoidal vibration and random vibration. The frequency of sinusoidal vibration remains unchanged, generally simulating the vibration caused by a rotating machine with a fixed speed, or the vibration at the natural frequency of the structure; random vibration is based on the overall performance of the product, the structural seismic strength evaluation, and the transportation environment simulation in the packaging state.Therefore, when choosing a vibrating table, it is necessary to evaluate and select the appropriate equipment according to the indicators of its own products, so as to achieve the purpose of the experiment.If you want to choose a suitable vibration test table, please contact us.hud05@hudatest.com

How to handle the spray failure of the salt spray corrosion tester?

If the salt spray corrosion tester has a spray failure, it may be that the nozzle is blocked. How should we deal with the blockage? 90L Salt Spray Testing Machine丨Salt Spray Corrosion Test Chamber丨For Metallic/Coating/Paint Testing Salt spray test chamber adapted to the surface treatment of various materials, electroplating, organic and inorganic. 1, in order to quickly deal with the blockage of the nozzle of the salt spray corrosion tester, we must first find the cause of the blockage. It may be that the equipment has not been used for a long time, and the nozzle has not been cleaned daily, resulting in the formation of crystalline substances, chemical substances, etc. on it, and a coupling effect occurs at the same time (two or more chemicals and crystalline substances on the nozzle are combined. phenomenon), then the nozzle holes and channels will be blocked; it is also possible that the nozzle is often used, the liquid filtration system is damaged, and the fluid has a "sandblasting" damage effect; in addition, the nozzle is hit and causes gaps or fragments. etc.;2, it can be seen by checking the pressure index of the equipment. If the pressure index is normal, it means that there is a problem with the nozzle and the pipeline. By checking whether the salt water is circulating, it can be seen that the nozzle and the pipeline are the problem. If it is an impurity To block the nozzle, you need to use the Q gun to blow out the impurities from the head of the nozzle, never from the silicone tube; if there is no impurities, after the equipment spray switch is turned on, when the air comes out from the curved glass tube of the nozzle , and then re-adjust the position of the nozzle. If the nozzle is blocked due to damage, it needs to be replaced in time.To avoid impurity clogging of the nozzle of the salt spray corrosion tester, the water in the test chamber must be filtered or softened water (usually distilled water or deionized water, etc.), which can reduce the probability of clogging, and the aperture of the equipment nozzle should not be too large If it is small, it is also prone to blockage; install an oil-water separation device to avoid the water, oil, etc. being brought in together when the air is compressed, so that the oil stains adhere to the wall of the nozzle to reduce blockage. Daily attention should be paid to protection, and try to avoid damage caused by nozzle collision.Any question about salt spray corrosion tester or test machines,please contact us!hud05@hudatest.com

Why does the constant temperature and humidity test chamber show abnormal temperature and humidity?

The constant temperature and humidity test chamber is a relatively common environmental test chamber, which is used to test the heat resistance, cold resistance, dry resistance and humidity resistance of various materials. It is suitable for testing the quality of electronic, electrical, communication, instrument, vehicle, plastic products, metal, food, chemical, building materials, medical, aerospace and other products.Why does the constant temperature and humidity test chamber show abnormal temperature and humidity? HUDA reminds you that there may be the following reasons.1. The humidity display of the temperature and humidity controller of the constant temperature and humidity chamber is abnormal. At this time, we must first check the over-temperature protector that controls the humidifier to see if it is still at the position of 130 °C to ensure that it is not because the water temperature protection has been set. Low causes humidification abnormality.2. Secondly, check whether the pipelines in the laboratory have not been cleaned for too long, resulting in poor drainage, and then check whether there is water in the wet cloth sink, whether the water inlet pipeline is unobstructed, and whether there is air in the pipeline.3. Finally, check whether the solid state relay of the humidity has been broken down, resulting in constant humidification. We can use a clamp-on ammeter to detect whether the humidifier is working normally, whether the power is normal, etc.4. Turn off the main power supply of the constant temperature and humidity chamber, open the drain valve under the humidification bucket to a position parallel to the pipeline, drain all the water inside, clean the internal dirt, then remove the silicone pipeline and scrub in water , After the maintenance is completed, install it back in the opposite direction according to the way of dismantling. After the installation is completed, it is necessary to close the drain valve under the humidification barrel to a position perpendicular to the pipeline, and then turn on the main power supply behind the machine to conduct a humidity test.The above are several reasons that may cause the abnormal temperature and humidity display of the constant temperature and humidity test chamber. More questions,please contact us.hud09@hudatest.com

Why does the constant temperature and humidity test chamber show abnormal temperature and humidity?

The constant temperature and humidity test chamber is a relatively common environmental test chamber, which is used to test the heat resistance, cold resistance, dry resistance and humidity resistance of various materials. It is suitable for testing the quality of electronic, electrical, communication, instrument, vehicle, plastic products, metal, food, chemical, building materials, medical, aerospace and other products.Why does the constant temperature and humidity test chamber show abnormal temperature and humidity? HUDA reminds you that there may be the following reasons.1. The humidity display of the temperature and humidity controller of the constant temperature and humidity chamber is abnormal. At this time, we must first check the over-temperature protector that controls the humidifier to see if it is still at the position of 130 °C to ensure that it is not because the water temperature protection has been set. Low causes humidification abnormality.2. Secondly, check whether the pipelines in the laboratory have not been cleaned for too long, resulting in poor drainage, and then check whether there is water in the wet cloth sink, whether the water inlet pipeline is unobstructed, and whether there is air in the pipeline.3. Finally, check whether the solid state relay of the humidity has been broken down, resulting in constant humidification. We can use a clamp-on ammeter to detect whether the humidifier is working normally, whether the power is normal, etc.4. Turn off the main power supply of the constant temperature and humidity chamber, open the drain valve under the humidification bucket to a position parallel to the pipeline, drain all the water inside, clean the internal dirt, then remove the silicone pipeline and scrub in water , After the maintenance is completed, install it back in the opposite direction according to the way of dismantling. After the installation is completed, it is necessary to close the drain valve under the humidification barrel to a position perpendicular to the pipeline, and then turn on the main power supply behind the machine to conduct a humidity test.The above are several reasons that may cause the abnormal temperature and humidity display of the constant temperature and humidity test chamber. More questions,please contact us.hud09@hudatest.com

Maintenance Procedure of Constant Temperature And Humidity Test Chamber

The constant temperature and humidity test chamber should be maintained regularly even when it is not in use to ensure normal operation and prolong the service life. There are 5 systems to check and maintain the constant temperature and humidity test chamber:1 Electrical SystemCheck the electrical system for pitting and loose connections on relays, contacts, harnesses, solenoids, sensor clips, and compressor connections. Check that the ground wire and phase are correct. Check all connections and terminals for electrical readings with a multimeter. View high and control voltages and get necessary amperage readings. Test all control switches and lights for proper operation.2 Cooling SystemCheck the oil level and look for leaks and buildup. Check various fan operations, cover ducts, duct supports and duct insulation. There should be no frost anywhere, the air handler should be tight and leak free, and the vibration eliminator should be checked. Clean coils and straighten any bent fins, check static and operating pressures and discharge, suction and liquid line temperatures. Measure the filter drier psi limit. Test expansion tank operation, net oil pressure and high/low pressure safety checks. 3 Humidity SystemPlease check floats, hoses and fittings and optional air dryer. Drain, clean and flush water pipes, steam generator and optional water tank. Check steam generator heater for pitting and verify water quality and pressure. Check dry air purge operation and filter. 4 Circulatory SystemCheck the pump and connecting lines for leaks. The drain tank should be free of sediment. Clean the pump and thoroughly clean the tank.5 Control SystemThis is the more precise part of the constant temperature and humidity chamber, which may require software updates and bug fixes. You can contact the manufacturer for corresponding maintenance.Lastly, check the overall construction of the chamber: the exterior, work area and floor for perforations, tears and dents. Check all gaskets for degradation: doors, windows, ports and plugs.Check the seal at each seam. Check the integrity of the panel lock or latch. Verify that door operation produces a smooth seal by checking latches and latches and hinges. Clean drain pipes and condensate pump. Clean and adjust air conditioners, vacuum or blow motor and mechanical areas to remove all dust and debris. Replace any missing or damaged safety labels. Return the test chamber to the correct position, leaving 12 to 36 inches of space for optimal airflow for optimal test performance.Checking the constant temperature and humidity chamber by regularly , test can be carried out more accurately.More information,please click www.hudatest.comContact us: hud05@hudatest.com

How to maintain the thermal shock test chamber?

Thermal Shock Test Chamber is used to test the bearing extent of the material structures and composite material in an instant and continuous high temperature and extremely low temperature environment, which is in the shortest time to test its thermal expansion and contraction caused by chemical change or physical harm.How to maintain the thermal shock test chamber?1. The condenser should be cleaned regularly. Dust sticky condenser will cause the compressor high pressure switch to trip and cause false alarms. The condenser should be regularly maintained monthly. Use a vacuum cleaner to remove the dust attached to the condenser heat sink or use a hard brush after turning on the machine. Brush it or use a high-pressure air nozzle to blow away the dust.2. When opening and closing the door or taking the test object from the box, do not allow the object to touch the glue edge of the door to prevent the glue edge from being damaged and shortening the lifespan.3. The ground around the fuselage and the bottom should be kept clean to avoid accidents and performance degradation caused by a large amount of dust being sucked into the unit.4. The refrigeration system is the core. Please check all copper pipes for refrigerant leakage once every six months.5. Current contact. The power distribution room should be cleaned and overhauled at least once a year. The loosening of the contacts will put the entire equipment in a dangerous working condition. In the light of the components, it is very dangerous to cause fire, alarm, and personal injury. When cleaning, use a vacuum cleaner to suck indoor dust. That's it.6. Clean the power distribution room at least once a year, and use a vacuum cleaner to remove the indoor dust. The outside of the cabinet must be cleaned more than once a year and wiped with soapy water.More details about thermal shock test chamber,please click below pictures ↓↓↓Contact: hud05@hudatest.com Two Zones Thermal Shock Test Chamber 丨 High-Low Temperature Test Equipment The equipment is a test equipment and it can be used as an important reference for improving product quality. Three Zones Thermal Shock Test Chamber 丨 High-Low Temperature Test Equipment The equipment is a test equipment and it can be used as an important reference for improving product quality.

What is IP Code and IPX series testing machine?

1 IP CodeIP Code is defined in IEC 60529 which classifies and rates the degree of protection provided by mechanical casings and electrical enclosures against intrusion, dust, accidental contact, and water.  2 Liquid ingress protectionX means there is no data available to specify a protection rating with regard to these criteria. 3 IPX series testing machineHuda focus on IPX series testing machine to test products’ waterproof performance.Please click below pictures to know.Any questions,don’t hesitate to contact us! hud05@hudatest.com Environmental IPX12 Water Drip Test Chamber It tests the performance of products during storage, transportation and use in a rainy climate environment. CE approved IPX3 IPX4 Programmable water spray test chamber rain spray test chamber It tests whether electrical products, housings and seals can ensure good performance of equipments in a rainy environment. Environmental IPX5 IPX6 water shower test chamber the machine simulation in heavy rain, heavy rain and other circumstances, the equipment of the performance is good. CE approved IPX7 IPX8 Automatic pressure water immersion test chamber For Waterproof Testing It is suitable for testing the waterproof performance of outdoor products. IPX9K High Pressure Water Spray Test Chamber the machine simulation in heavy rain, heavy rain and other circumstances, the equipment of the performance is good.

2 Ways to Defrost of Thermal Shock Test Chamber

The inner chamber of the thermal shock test chamber will be frosted due to the exchange of heat and cold.There are 2 ways to defrost:One is by time, and the other is by cycle times. Generally, most manufacturers and customers seldom choose the set time to defrost, because it has a disadvantage that the equipment may be running when the set defrost time is up. During the test, setting according to the number of cycles means defrosting after the thermal shock test is completed, so it is recommended to set it according to the number of cycles. Know more:Thermal shock test chamberEmail:hud05@hudatest.com

How to screen electronic components?

Electronic components are the basis of the whole machine. During the manufacturing process, it may cause failures related to time or stress due to its inherent defects or improper control of the manufacturing process. In order to ensure the reliability of the entire batch of components and meet the requirements of the complete machine, the components that may have initial failures under the conditions of use must be removed. The process of component failure rate changing with time can be described by a failure rate curve similar to a "bathtub curve". The early failure rate decreases rapidly with the increase of time, and the failure rate during the service life (or accidental failure period) is basically not Change. The inherent reliability of electronic components depends on the reliability design of the product. In the manufacturing process of the product, due to human factors or fluctuations in raw materials, process conditions, and equipment conditions, the final products cannot all achieve the expected inherent reliability.In each batch of finished products, there are always some potential defects and weaknesses in a part of the products, and these potential defects and weaknesses are manifested as early failures under certain stress conditions. The average life of components with early failure is much shorter than that of normal products.Therefore,screening is an important means to ensure reliability. How to screen electronic components?1. High temperature storageMost of the failures of electronic components are caused by various physical and chemical changes in the body and on the surface, and they are closely related to temperature. After the temperature rises, the chemical reaction speed is greatly accelerated, and the failure process is also accelerated. So that the defective components can be exposed in time and removed.High-temperature screening is widely used in semiconductor devices. It can effectively eliminate devices with failure mechanisms such as surface contamination, poor bonding, and defective oxide layers. Usually stored at the highest junction temperature for 24 to 168 hours.2. Power electric agingWhen screening, under the combined action of thermoelectric stress, it can well expose a variety of potential defects in the body and surface of components, which is an important item of reliability screening.Various electronic components are usually aged for several hours to 168 hours under rated power conditions. Some products, such as integrated circuits, cannot be changed arbitrarily. However, high-temperature working methods can be used to increase the working junction temperature and reach a high stress state. The electrical stress of the components should be selected appropriately, which can be equal to or slightly higher than the rated conditions, but no new failure mechanism can be introduced.Power aging requires special test equipment, and its cost is high, so the screening time should not be too long. Civil products usually take several hours, military high-reliability products can choose 100, 168 hours, and aerospace-grade components can choose 240 hours or even longer periods.3. Temperature cycleElectronic products will encounter different environmental temperature conditions during use. Under the stress of thermal expansion and contraction, components with poor thermal matching performance are prone to failure. The temperature cycle screening utilizes the thermal expansion and contraction stress between extreme high temperature and extreme low temperature, which can effectively eliminate products with thermal performance defects. Commonly used screening conditions for components are -55~+125℃, cycle 5-10 times. Huda focus on temperature & humidity test chamber with 17 years and we had provide lad solutions for more than 150+ countries. If any question about these,please contact us!  hud05@hudatest.comTemperature & Humidity Test Chamber https://www.hudatest.com/pid18117053/Programmable-Temperature-And-Humidity-Test-Environmental-Climate-Chambers-Climatic-Chamber.htmThermal Shock Test Chamberhttps://www.hudatest.com/pid18121229/Three-Zones-Thermal-Shock-Test-Chamber.htmRapid Temperature Change Test Chamberhttps://www.hudatest.com/pid18320312/Rapid-Rate-Thermal-Cycle-Chamber-Rapid-Temperature-Change-Test-Chamber.htm Temperature & Humidity Test Chamber Thermal Shock Test Chamber Rapid Temperature Change Test Chamber

What should pay attention to when using the salt spray test machine?

1. The salt mist must be discharged outside and led to the outdoors. It is best not to discharge into the sewer. There is generally water in the sewer, which affects the discharge of salt spray.2. Before each experiment, the operator must be called to check whether the sensor rubber plug is loose. The sensor rubber plug must remain tightly plugged.3. The water in the saturated bucket is replaced once a month.4. The test chamber is cleaned once a week, and the water in the brine bucket is drained. If there is rust, it can be cleaned with high-activity cleaning agent.5. After test is completed, the residual oil and water in the oil-water separator must be drained. More information about Salt Spray Test Machine,please contact us.https://www.hudatest.com/pid18322164/120L-Salt-Spray-Test-Cabinet-Salt-Fog-Test-Machine-For-Metallic-Coating-Paint-Testing.htmhud05@hudatest.com Huda is a leading manufacturer & supplier of climatic test chambers, tensile test machines,battery test machines,plastic test machines,etc.https://www.hudatest.com/products-list.htm

What is the the influence of temperature and humidity on electronic products?

The influence of temperature and humidity on electronic productsHigh temperature environment: When the ambient temperature rises by 10°C, the life of the electronic product will be reduced by half; when the ambient temperature rises by 20°C, the life of the electronic product will be reduced to a quarter. High temperature also causes aging, oxidation, vaporization, physical deformation, etc.Low temperature environment: It will cause product embrittlement, icing, reduction of mechanical strength, physical shrinkage, etc.Humidity and water vapor: Many materials swell and deteriorate after absorbing moisture, decrease material strength and mechanical properties. Insulating materials that absorb moisture will not only cause electrical performance degradation, but also cause failures under certain conditions . Humidity also causes corrosion, diffusion, hydrolysis, mold, etc. So temperature and humidity testing is very important for electronic products.                    Huda focus on temperature and humidity test chamber with 17+ years and aims to develop agency to serve for our customers all over the world.                   If you are in electronic products field or have interests in this test chamber, please contact us for more details. hud05@hudatest.com

What is different applications between 3 kinds of vibration test machine?

The different applications between High-frequency vibration table & Electromagnetic vibrating table & Simulated transportation vibration table1. High-frequency vibration table: it suitable for aerospace, automotive parts, LEB optoelectronics, semiconductors, plastics and other colleges and universities and scientific research units.2. Electromagnetic vibrating table: it is suitable for testing the structural hardness of semi-finished products or finished samples, and screening out defective products in advance through the vibration test of the electromagnetic vibrating table.3. Simulated transportation vibration table: it suitable for testing the packaged products to be transported, and test the protection of the packaging on the product during transportation.Huda has high quality vibration tables and can provide customized services,if any interests,please contact us.hud05@hudatest.com High-frequency vibration table Electromagnetic vibrating table Simulated transportation vibration table

Six Testing For Toxic And Hazardous Substances

1. VOC (Volatile Organic Compound)Including: cyclohexanone, isophorone, methanol, ethanol, phenol, acetone, ethyl acetate, benzene, n-butanol, methyl isobutyl ketone, n-butyl acetate, xylene (ortho, m, p ), toluene, styrene, 1,2-dichlorobenzene, acetophenone, methyl ethyl ketone, isopropanol, dichloromethane, trichloroethylene, ethylbenzene, n-hexane, 2-methoxyethyl acetate 2. RoHSIncluding: lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls PBBs, polybrominated diphenyl ethers PBDEs; 3. REACH regulations (specially SVHC test) 4. Polycyclic aromatic hydrocarbons (PAHs)Including: acenaphthylene, acenaphthylene, anthracene, benzo(a)anthracene, benzo(b)fluoranthene, benzo(j)fluoranthene, benzo(k)fluoranthene, benzo(ghi)perylene (dinaphthalene) Perylene), benzo(a) pyrene, benzo(b) pyrene, benzo(a, n) anthracene, fluoranthene, fluorene, indene benzene (1,2,3-cd) pyrene, naphthalene, Phenanthrene, pyrene; 5. Ortho-benzene (6P, 16P, 22P) plasticizer6P : Diisononyl Phthalate (DINP), Di-n-octyl Phthalate (DNOP), Diisodecyl Phthalate (DIDP), phthalate Bis-(2-ethylhexyl) Phthalate (DEHP), Dibutyl Phthalate (DBP), Benzylbutyl Phthalate (BBP) 6. AsbestosIncluding: asbestos content in the air, asbestos content in materials, asbestos content in mixed substances, asbestos testing in other fields, etc.