Electronic torque wrench is undoubtedly a digital torque wrench, but recently found that many users are very concerned about how to do the electronic torque wrench is broken, and there is no definitive answer, in fact, electronic torque wrench used in our daily lives At the same time, it is normal for some faults to appear. For the limited handling skills of special electronic torque wrenches, we must first analyze the cause of the fault! The user must cooperate with the maintenance company to preliminarily classify the failure and help the supplier obtain valuable reference information during the telephone communication. Electronic torque wrench data chart The following is a detailed solution to the failure of electronic torque wrench by professional technicians of Shanghai Hengheng Electronic Technology Co., Ltd. Electronic torque wrench. It is better for young partners to learn a lesson. Electronic torque wrench repair method 1: B. Electronic Torque Wrench Maintenance Method 2: C. Electronic torque wrench repair method three: D. Electronic Torque Wrench Maintenance Method 4: E. Electronic Torque Wrench Maintenance Method 5:
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1, first check your electronic torque wrench sensor connection cable is connected, is there a sensor signal line
2, short circuit or open circuit, as well as welding whether there is a phenomenon of welding.
1, then check whether your instrument is fully charged, if it is not enough charge, it is also easy to cause, can not normally use the boot, the value is not stable, on-line beat. When using logic pens and oscilloscopes to detect signals, be careful not to make the probe contact two at the same time
2. Measure the pin, because the essence of this situation is to form a short circuit under power.
1. When using the multimeter's ohmic block, remember not to measure with electricity. When detecting the filter capacitance in the power supply of the electronic torque wrench, the electrolytic power should be first
2. The positive and negative electrodes of the container should be short-circuited, and do not use the lead line instead of the lead to discharge the capacitor, because it is easy to blow the core wire. A 220-volt, 50-watt light bulb with a cap lead can be taken and connected at both ends of the capacitor. At the moment of discharge, the bulb will flash.
1. When measuring the parameters of each point, you can use ordinary hand-sewing needles to weld the pen on the multimeter so that the points can be directly measured by piercing the paint layer without peeling off the paint layer in a large area. This will cause oxidation of the copper foil.
1. When the maintenance of the wet environment is faulty, it is necessary for the circuit board's circuit multimeter to measure whether each point is unobstructed.
2. Because the main fault in this case is the corrosion of copper foil. For circuit boards that are corrosive, we can use 95% industrial alcohol to clean and wipe, so as not to cause corrosion of the larger mask.
3. When the internal circuit of the electronic torque wrench is inspected, if the contacts and the circuit board of the mounting component are coated with insulating varnish.
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