First, determine the metal detector is in the following cases of misoperation Problem 1: The metal detector is turned on after the alarm, and the action is frequent 2: metal detectors sometimes move frequently, and sometimes normal problem three: metal After the detector is turned on normally, after the other machines are started, such as a fan, etc., after turning on the wrong operation problem four: However, when the product is normal, when the product is over, there is a false alarm phenomenon. The metal detector in the normal use of the process of false alarm and troubleshooting Problem 1 troubleshooting:
1. Check whether the shell of the metal detector is in contact with other metals. Note: The metal probe cannot contact other metal objects.
2. The metal detector has two sets of shielded wires to lead out, which is the signal transmission and signal receiving line. Check whether there is any connection or error in the main control box's terminal block and whether it is connected firmly. Pay special attention to loose wire ends on the terminals that can cause malfunctions.
3. Check if there is strong electromagnetic interference near the metal detector.
4. There is strong RF interference near the metal detector head, such as high-power frequency converters that do not suppress RF interference. You can modify the carrier frequency of the frequency converter or install devices that suppress interference.
Third, the problem two, three troubleshooting:
1. First check the power supply of the controller. We require the power supply of the metal detector to be supplied separately. Take special care not to share the power supply with the frequency converter. If using a regulated source, use a separate voltage regulator.
2. After the other machine is started, it is not caused by the jitter of the metal detector head. The four-direction casters of the metal detector should be securely mounted. Other equipment should be a certain distance from the probe.
Fourth, problem four troubleshooting:
1, first check the product is not caused by severe jitter, and cause collision rub metal probe, if it is to be fixed.
2. Observe whether the product will produce more serious static electricity when passing through the conveyor at high speed.
3, does not rule out the existence of product effects
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