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Abnormal Judging Method Of Xenon Lamp Aging Tester

2022-12-30

The xenon lamp aging tester is suitable for the adaptation test of storage, transportation and use of electrical, electronic and other materials in a simulated natural environment. It is an experimental instrument for passing aging test of materials, which can be provided by Shanghai QINSUN Precision Electromechanical Technology Co., Ltd. Welcome customers who have questions. Shanghai QINSUN R&D technical engineer said that the abnormal failure of the xenon lamp aging tester is a problem that customers are very concerned about. Regarding the abnormal rating method, the following is a simple explanation, hoping to be helpful for every customer.

1. Percussion handshake method: The instrument runs well and badly, most of these phenomena are caused by unstable contact or virtual welding. Tap and hand press methods can be used for this. Tap refers to tappingusing a small eraser tip or other tap on a board or part that may fail, to see if it is OK.causing errors or downtime. What we call hand pressing means that when a fault occurs, after turning off the power, the plug, plug and seat are pressed again by hand and then opened to see if the fault can be corrected. If the knocking on the housing is found to be normal and the knocking is not normal, please plug all connectors back first and try again. If it doesn't work, you have to find another way.

2. Method of observation: use sight, smell and touch. Sometimes damaged components may discolor, blister or have burnt spots, burnt devices will produce special smells, shorted chips will burn, and weak soldering or desoldering can also be seen with the naked eye.

3. Method for temperature rise and fall: sometimes werdoes the instrument work for a long time, or when the temperature of the working environment is high in summer, it will fail. Exit and check normally. Another error has occurred. The reason for this phenomenon is that the performance of individual ICs or components is poor and the high temperature characteristic parameters do not meet the index requirements. To find the cause of the malfunction, the method of temperature increase can be used. The so-called cooling means that when a malfunction occurs, the absolute alcohol is wiped with cotton fiber to the place where the malfunction may occur, let it cool down and see if the malfunction has been resolved. Heating is artificially raising the ambient temperature, such as placing an electric soldering iron on a suspect part (be careful not to get the temperature too high to damage normal devices) to see if the error occurs.

4. Status adjustment method: Touch under normal omsconditions, before the fault has been determined, do not simply touch the components in the circuit, especially for adjustment devices, such as potentiometers. However, if reference measures are taken beforehand (for example, marking the position or measuring the voltage or resistance value before the touch), the touch will still be allowed. Perhaps the malfunction sometimes disappears after the change.

5. Isolation method: The fault isolation method does not need to be compared with the same type of equipment or parts, and the performance is reliable. Based on the fault detection flowchart, segmental encirclement gradually narrows the fault search range, combined with methods such as signal comparison and parts replacement, the fault can generally be found quickly.

6. Elimination method: The so-called elimination method is to judge the cause of the error by disconnecting the plug-in board, some boards and devices in the plug-in device.After some plug boards or devices are pulled out, the instrument will return to If it returns to normal, it means that an error has occurred.

7. Replacement method: Two instruments of the same model or sufficient spare parts are required. Replace the good parts with the same parts on the faulty machine to see if the fault has been resolved.

The xenon lamp paging tester is suitable for the adaptation test of storage, transportation and use of electrical, electronic and other materials in a simulated natural environment. It is an experimental instrument for passing aging test of materials, which can be provided by Shanghai QINSUN Precision Electromechanical Technology Co., Ltd. Welcome customers who have questions. Shanghai QINSUN R&D technical engineer said that the abnormal failure of the xenon lamp aging tester is a problem that customers are very concerned about. With bedraw to the abnormal rating method, the following is a simple explanation, hoping to be useful for every customer.

1. Percussion handshake method: The instrument runs well and badly, most of these phenomena are caused by unstable contact or virtual welding. Tap and hand press methods can be used for this. Tap refers to tapping with a small eraser nib or other tap on a board or part where a failure may occur, to see if it causes errors or failures on its own time. What we call hand pressing means that when a fault occurs, after turning off the power, the plug, plug and seat are pressed again by hand and then opened to see if the fault can be corrected. If the knocking on the housing is found to be normal and the knocking is not normal, please plug all connectors back first and try again. If it doesn't work, you have to find another wayfind.

2. Method of observation: use sight, smell and touch. Sometimes damaged components may discolor, blister or have burnt spots, burnt devices will produce special smells, shorted chips will burn, and weak soldering or desoldering can also be seen with the naked eye.

3. Temperature rise and fall method: Sometimes the instrument works for a long time, or when the temperature of the working environment is high in summer, it will fail. Exit and check normally. Another error has occurred. The reason for this phenomenon is that the performance of individual ICs or components decreases badly, and the high temperature characteristic parameters do not meet the index requirements. To find the cause of the malfunction, the method of temperature increase can be used. The so-called cooling means that when a malfunction occurs, the absolute alcohol is wiped with cotton fiber to the place where thering may occur, allow to cool and see if the fault has been rectified. Heating is artificially raising the ambient temperature, such as placing an electric soldering iron on a suspect part (be careful not to get the temperature too high to damage normal devices) to see if the error occurs.

4. Status adjustment method: Under normal circumstances, before the fault is detected, do not simply touch the components in the circuit, especially for adjustment devices, such as potentiometers. However, if reference measures are taken beforehand (for example, marking the position or measuring the voltage or resistance value before the touch), the touch is still allowed. Perhaps the malfunction sometimes disappears after the change.

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5. Isolation Method: Fault Isolation The separation method does not need to be compared with the same type equipment or parts, and the prestations are reliable. Based on the fault detection flowchart, segmental encirclement gradually narrows the fault search range, combined with methods such as signal comparison and parts replacement, the fault can generally be found quickly.

6. Elimination method: The so-called elimination method is to judge the cause of the error by disconnecting the plug-in board, some boards and devices in the plug-in device. After pulling out some cards or components, the instrument returns to normal, which means an error has occurred.

7. Replacement method: Two instruments of the same model or sufficient spare parts are required. Replace the good parts with the same parts on the faulty machine to see if the error is eliminated.

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