{"product_id":"inductive-proximity-sensor-lj12a3-4-z-bx","title":"Inductive Proximity Sensor LJ12A3-4-Z\/BX in Pakistan","description":"\u003ch3 id=\"description\" class=\"tab-list-title\"\u003e\u003c\/h3\u003e\n\u003cdiv id=\"content_description\" class=\"ty-wysiwyg-content content-description\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003eProximity sensor that detects nearby metal, including aluminum foil; a great solution for heated bed calibration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003eThe Inductive Proximity Sensor LJ12A3-4-Z\/BX  will detect large metal fields at 4mm distance with great precision. This allows you to accurately measure the distance to an (aluminum) heated bed for example. If you are using a \u003ca title=\"Heated Bed glass 200x200x3mm\" href=\"https:\/\/reprap.world\/products\/electronics\/endstops\/products\/heated_bed\/heated_bed_glass_200x200x3mm_borosilicate\/\"\u003eglass plate\u003c\/a\u003e as your print surface, you can use aluminum foil right below the glass, which will also be detected by the sensor (\u003ca title=\"Heated Bed glass round 17cm diameter (mirror)\" href=\"https:\/\/reprap.world\/products\/electronics\/endstops\/products\/printers_printing\/kossel_delta\/heated_bed_glass_round_17cm_diameter_mirror\/\"\u003emirrors\u003c\/a\u003e however are not detected). The inductive proximity sensor is equipped with a small red detection LED, indicating a nearby object. The sensor has an M12 threading and includes a nut for easy mounting to your 3D printer or CNC machine.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003eThe LJ12A3-4-Z\/BX is a NPN Normally Open (NO) type of proximity sensor, which means when nothing is detected the resistance on the black wire is high. Upon detection the resistance will be low and connects to ground. Use the internal pull-up on your Arduino.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003eMost modern 3D printer firmwares have some sort of auto bed leveling procedure available, but you will need to enable it. You can use this sensor as the z_min_endstop for example, replacing your current end stop. Most firmware will also use the min endstop as a probe, but some allow a separate probe to be defined.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003eThis sensor operates at 6-36V, so as the signal voltage is the same as the input voltage, also the signal will be 6-36V. You will need to down-convert the voltage to acceptable level for your electronics. \u003cstrong\u003ePut a 10K resistor between the black signal line and your 5V electronics input to avoid damage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 24px;\"\u003eBenefits :\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003eSave time messing with springs and screws on your print bed. Run the Auto-level procedure before every print or just one time for each start-up of the printer. Less issues related to un-level print beds like parts coming up on one corner and nozzles jamming because the print started too close.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"font-size: 24px;\"\u003eNote: To set up your printer for auto-leveling, you need to update your firmware and make a mount for your Inductive Proximity Switch.\u003c\/span\u003e\u003c\/h4\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 24px;\"\u003eSpecifications and Features :\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eProduct Name : Inductive Proximity Switch.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eModel : LJ12A3-4-Z\/AX.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eTheory : Inductive Sensor.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eWire Type : 3 Wire Type (Brown, Blue, Black).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eSwitch Appearance Type : Cylinder Type, Metal Shell.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eOutput Type : NPN NC.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eDetecting Distance : 4 mm.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eSupply Voltage : DC 6 V-36 V.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eOutput Current : 300mA.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eDetect Object : Iron.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eColumn Sensor Diameter : 10.4mm\/0.4″.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eThread Diameter : 12mm\/0.5″.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eTotal Size : 66 x 21 mm\/ 2.6” x 0.8” (L x Max.D).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eCable Length : 1.16m\/35.7”.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eExternal Material : Plastic, Metal.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eNet Weight : 43 gm.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eColor : Silver Tone, Orange,Gray.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 24px;\"\u003eAttachments and Links :\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003eHome switch wiring example using Inductive Proximity Sensor Detection Switch NPN DC6-36V 4mm Normally Open proximity switch LJ12A3-4-Z\/BX\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003eTube Type Inductive Proximity Sensor Detection Switch NPN DC6-36V\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 24px;\"\u003ePackage Includes :\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003e1 x Inductive Proximity Sensor LJ12A3-4-Z\/BX\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Electronics Hub","offers":[{"title":"Default Title","offer_id":54466813886777,"sku":"product-6353","price":450.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/32086-large-1.webp?v=1789234742","url":"https:\/\/electronicshub.pk\/products\/inductive-proximity-sensor-lj12a3-4-z-bx","provider":"Electronics Hub","version":"1.0","type":"link"}