Inductive Sensor Probe LJ12A3-4-Z/BY - Cover Expand

Inductive Sensor Probe LJ12A3-4-Z/BY

Haitronic Haitronic

9SENLJ12A34Z/BY

New

The LJ12A3-4-Z/BY is the PNP equivalent of the ever-popular LJ12A3-4-Z/BX, designed & stocked to help accommodate a wider range of 3D Printer setups.

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For anyone who has spent more than just a few minutes levelling the bed in 3D Printing, only to come back a few prints later and find that it’s completely unlevelled once again, you will have definitely felt the frustration that comes with failed prints from bad first layer adhesion. This is why so many 3D Makers are choosing to swap from manual levelling over to automated levelling, as it’s just so much easier to tell 3D Printers to level themselves than to get your own hands dirty with careful adjustments and the classic paper technique. However, while a large majority of 3D Makers do prefer automatic to manual bed levelling, with so many different options available, it can sometimes get tricky to find the one that best suits your needs and your 3D Printer setup, and that’s why we always try to keep stock of a good range of different Bed Levelling Sensors, with these LJ12A3-4-Z/BY PNP Inductive Sensor Probes being a good addition to our growing list.

The LJ12A3-4-Z/BY PNP Inductive Sensor Probe is designed in an extremely similar fashion to the LJ12A3-4-Z/BX NPN Probe, but offers a PNP style configuration instead, which for advanced users means that the voltage will be sourced to the MCU or controller board, rather than from it, and while being a little trickier to use than NPN versions, offers some benefits that some setups simply can’t work without. So, while we would typically recommend the LJ12A3-4-Z/BX NPN Probe for this kind of application, since it offers very similar effects but it easier to use, we also know that each Maker’s setup can vary quite drastically, and so we always try to maintain stock for all Makers, and whether you want to utilise a PNP or NPN inductive sensor for your bed levelling in 3D Printing, we do our best to keep stock of the sensors, modules and other 3D Printer Parts that you need.

 

LJ12A3-4-Z/BY Inductive Sensor Probe  -  Technical Specifications:

  • Model

– LJ12A3-4-Z/BY                                                   

  • Operating Voltage

– 6V to 36V DC | 90V to 260V AC

  • Detection Distance

– 4mm

  • Sensor Type

– Inductive

  • Transistor Configuration

– PNP

  • Connection Configuration

– Normally Open

  • DC/AC Response Frequency

– 400Hz/25Hz

  • Wiring Labels

Brown = VCC

Black = Signal Output (Z-Stop)

Blue = GND

  • Head Diameter

– 12mm

  • Cable Length

– 110cm

  • Weight

– 46g

  • Dimensions

– 20mm Diameter | 62mm Length

 

Additional Resources:

  • It’s no secret that these sensors can be tricky to work with, so here’s a basic but handy LJ12A3-4-Z-BX vs LJ12A3-4-Z/BY Wiring Guide to help you understand the key differences and how to wire these two different units.

  • Next up, if you want to find out more complex details and insights into the differences between various sensors in this same category, check out this LJ12A3 Sensor Comparison Chart.

 

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Inductive Sensor Probe LJ12A3-4-Z/BY

Inductive Sensor Probe LJ12A3-4-Z/BY