How to Program an LPU-2428 for Open Channel Flow


Learn how to program your LPU-2428 Ultrasonic Level Sensor for Open Channel Flow in 2 minutes with this tutorial.


00:15 To program the LPU-2428:

  1. Click on the basic setup button found on the left side of the screen.
  2. Select the units to be displayed on the right and set the application to flow.
  3. Select the flow units and flow rate to be displayed.
  4. Click on the send button near the bottom of the screen to send these settings to the sensor, wait until the progress bar completes to move to the next step.

00:37 Now we are ready to set up the remaining parameters.

  1. Click the application setup button on the left menu.
  2. Select a desired flow type on the right. This will either be flume, weir, or equation.
  3. Select the flume type, wire type, or equation according to the flow type you selected.
  4. Enter the max flow, or distance from the sensor face, to the maximum flow level. Remember the sensor has a 1 foot blanking distance.
  5. Enter the zero flow or distance from the sensor face to the minimum flow level.
  6. Enter the constant, exponent, length, etc. for the parameters shown on the screen, all constants and exponents must be in feet or meters. For abnormal weirs, you can use the linearization table option, see the manual for details.
  7. Click the 4 to 20 setup button in the left menu and enter your minimum milliamp set point this is the 4 milliamp setting it's usually set to 0.
  8. Enter the maximum milliamp set point this is the 20 milliamp setting. These may be the same as your max and 0 flow distance or they can be different.
  9. Press the send button to save these settings and wait for the progress bar to complete. Your sensor is now set up and ready to go.

01:45 The remaining advanced features in the programming software will default to automatic settings. To change these settings, please refer to the LPU-2428 user manual programming section.

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