How-To Wire the LPU-2428 Ultrasonic Sensor


Every now and then we add a helpful how-to video to our video library. These help our customers quickly understand how to use our products as effectively as possible. This video covers how to wire the LPU-2428 ultrasonic sensor for set-up and programming. We'll get into the actual programming instructions in later videos.

Video Transcript

Narrator: Hi, you’re watching APGTV. I’m Shaw Merrill, and today we’re going to show you how to wire your LPU-2428 ultrasonic sensor to the RST-4001 programming module.

Before we get started, make sure you have:

  • your LPU-2428,
  • the terminal block that was shipped with your sensor,
  • the RST-4001 programming module,
  • and a power source.

First, make sure the terminal block has the jumper wired in, and hold it so the jumper is facing your left, and the terminal screws are facing up.

Step 1: We’ll start by connecting the positive input voltage wire from the LPU-2428 (that’s the red wire). Slip this wire into the top-left terminal on the terminal block, and tighten the screw with a small flathead screwdriver to secure the wire.

Step 2: Next you’ll want to twist the negative wire from the LPU-2428 (that’s the black one), and the negative wire from the RST-4001 together. Then slip these into the bottom-right terminal on the terminal block, and tighten the screw.

Step 3: Before we wire the power supply into the terminal block, make sure the power supply is turned off. Take your positive wire from the power supply, and the positive wire from the RST-4001 (they’re both red), and twist them together. Then slip this into the top-right terminal on the terminal block and tighten the screw.

Step 4: Next, take the negative, or black, wire from the power supply and put it into the middle-right terminal on the terminal block and tighten the screw. Tug on the wires to make sure they’re secure.

Step 5: Plug the USB cable into your USB port on the computer. Turn on the power supply, and you’re ready to program your LPU-2428.

An easy way to tell if your sensor has power is to hold it to your ear. If you hear ticking, then you have power.

Thanks for watching our quick LPU-2428 wiring demo. If you have any questions, give us a call at 888-525-7300, or send us an email to Until next time, I’m Shaw Merrill, APGTV.


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