What are the precautions for the Deshuorui proximity switch
Date: 2025-09-15Read: 1
The precautions for the Deshuorui proximity switch are as follows： -
Pre-installation preparation
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Power-off operationBefore installation, disconnect the power supply to avoid the risk of electric shock.
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Model MatchingSelect the appropriate model based on the application scenario (such as inductive detection of metals, capacitive detection of non metals), and confirm whether the detection distance, sensitivity, response time, and other parameters meet the requirements.
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Environmental AssessmentIn harsh environments such as high temperature, high humidity, strong magnetic fields, or high-frequency equipment, switches with high protection levels (such as IP67) should be selected, and protective measures (such as gaskets and shielded wires) should be taken.
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Installation position and fixation
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Location SelectionEnsure that the switch can effectively detect the target object and avoid interference from metal objects or electromagnetic sources. For example, it is recommended to use non-metallic gaskets to isolate metal installation surfaces.
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fixation methodFix with screws, brackets, or magnets to ensure firmness and stability, avoiding displacement caused by vibration or impact. When installing in a buried manner, the sensing surface should maintain a distance of 2.4-3.6mm (gauge distance ± 20%) from the metal object.
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Direction and distanceSwitches usually have a fixed detection direction and need to be installed perpendicular to the direction of motion of the detected object; The installation distance is recommended to be within 70% -80% of the rated sensing distance to avoid accidental triggering.
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Wiring and electrical connections
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Follow the wiring diagramA proximity switch usually has three wires (positive, negative, and output), which should be connected correctly according to the instructions to avoid short circuits or looseness. When providing DC power, it is necessary to distinguish between positive and negative poles to prevent damage caused by reverse connection.
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Cable managementReplace standard cables with twisted pair shielded cables (such as Belden 8761 series) to reduce electromagnetic interference; The M12 4-pin connector needs to be treated with contact enhancer regularly.
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Voltage MatchingConfirm that the power supply voltage is consistent with the rated voltage of the switch to avoid overload operation.
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Debugging and Testing
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Sensitivity adjustmentAdjust sensitivity based on the size and material of the detected object to avoid misoperation or missed detection caused by excessive or insufficient sensitivity.
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Functional testingAfter installation, simulate the approach and departure actions of the target object to check whether the output signal is accurate and reliable. Multiple tests are required from different angles and speeds to ensure stable performance.
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parameter calibrationUse an oscilloscope to monitor the response time (should be maintained at 0.5ms ± 0.1ms), and regularly calibrate the detection distance with a laser rangefinder.
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Maintenance during use
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regular cleaningWipe the testing surface and casing with a clean soft cloth to remove dirt, dust, and oil stains, ensuring that the testing surface is clean and unobstructed. Optoelectronic switches require regular cleaning of the mirror or reflector to avoid loss of light.
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Line inspectionRegularly check whether the connecting wires are damaged, aged, or loose, replace or repair them in a timely manner, and ensure that the wiring terminals are firm and reliable.
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environmental monitoringCheck if there are any changes in the installation environment (such as the addition of electromagnetic interference sources), and if the temperature and humidity are within the normal range. When it exceeds the applicable scope, protective or adjustment measures should be taken.
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Load inspectionEnsure that the switch operates within the rated load range to avoid equipment damage or efficiency degradation caused by overload operation.
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Fault handling and safety
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exception handlingWhen abnormalities such as misoperation or lack of movement are found, immediately stop using and ask professional personnel for maintenance. Do not disassemble or repair at will.
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safety protectionPay attention to personal safety during operation, avoid electric shock and mechanical injury; Regularly check whether safety measures such as protective covers and insulation layers are intact.
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Spare Parts ManagementSuggested inventory level=monthly average usage x 2 (considering delivery cycle), and redundant installation (1 for use and 1 for backup) should be used in critical situations.