Free Shipping 3D Printer Inductive Proximity Switches LJ12A3-4-Z/BX Three-wire NPN Normally Open DC 6-36V Automatic Leveling

Free Shipping 3D Printer Inductive Proximity Switches LJ12A3-4-Z/BX Three-wire NPN Normally Open DC 6-36V Automatic Leveling

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List price:
US $4.86
Price:
US $4.28

Product Description





Free Shipping 3D Printer Inductive Proximity Switches LJ12A3-4-Z/BX Three-wire NPN Normally Open DC 6-36V Automatic Leveling

1. Function and use: 3D Printer automatic leveling platform

2. Detection distance: 4mm

3. Working voltage: DC 6-36V

4. The proximity switch Description:

Integrated proximity switches, also known as non-contact proximity switch, it plays after the oscillator oscillator generates an alternating magnetic field induced by the oscillator switch head and shaping amplifier, when the metal body close to the sensing area, the metal body a vortex to absorb the energy of the oscillation, the oscillation amplitude decreased stop vibration that enables proximity switches to achieve the purpose of reversing, by the shaping amplifier into binary switching signals, so as to achieve the purpose of detection.
This series of high-frequency oscillation type proximity switch, it is a non-contact, no pressure, no spark, quickly issued a detection signal to drive a relay or logic gates, it has a high sensitivity, fast frequency response, high repeat positioning accuracy, Shun change process short, high output power, anti-jamming performance, stable and reliable operation, long life, filled with resin inside the switch to fully enclosed, with vibration-resistant, corrosion-resistant and waterproof characteristics.

5. How it works:

Proximity switch consists of three parts: oscillator, switch circuit amplifier output circuit. The oscillator generates an alternating magnetic field. When the metal target close to this field, and reaches the induction distance, eddy currents in the metal target, causing oscillation damping, as well as to stop vibration. Oscillator stop vibration and variations is processed stage amplifier circuit and converted into a switching signal to trigger the drive control device, so as to achieve the non-contact detection purposes. The closer the target from the sensor, the sensor nearer the target, the greater the damping coil; the greater the damping, the less the current sensor oscillator inductive proximity switch current consumption is reduced with a metal target distance. decreases.

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2). Orders processed timely after the payment verification. 3). We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address. 4). The images shown are not the actual item and are for your reference only. 5). SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season. 6). If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction! 7).We usually ship the buyer item as GIFT in a lower value, in order to avoid the buyer’s tax. However, the tax is determined by buyer customs not by us, different countries for different tax rate, so if any tax then the buyer should understand it. 8).Due to the buyer reason including -refuse to sign for the package- or -refuse to pay the tax or -buyer country post reason and so on, the buyer have to understand all the lose. We are responsible for keeping the goods leave China smoothly. Once the goods leave China then the buyer will be in charge of all the responsibility.

You have 7 days to contact us and 30 days to return it from the date it was received. If this item is in your possession more than 5 days, it is considered used and WE WILL NOT ISSUE YOU A REFUND OR REPLACEMENT. There are NO EXCEPTIONS! Shipping cost is bear by both seller and buyer in half.
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We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from aliexpress. OR, you may choose to.have a replacement.We will bear all the shipping cost if the product(s) is (are) not as advertised.

We provide 6-12 months warranty. If the item is defective, please notify us within 3 days of delivery. All items must be returned in their original condition, in order to qualify for a refund or exchange of goods. Items returned after 15 days of delivery are only eligible for repair. The buyer is responsible for all shipping cost. When buying, it means the buyer have given tacit consent to the policy. If further details, please feel free to contact us, we will work with you to reach win-win.

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