Using a digital load cell junction box such as  the CLM8 intellegent junction box has many advantages over standard load cell j-boxes.  Load Cell Systems carries both versions for the following reasons.

Digital Load Cell Junction Boxes:

Intelligent load cell junction box


  • Digital equalization (no trim pots to adjust or drift over time)
  • Serial communications between the j-box and the instrumentation
  • Fault monitoring of the weighing system’s load cells
  • Ability to use the load cell’s rated mV/V to theoretically trim the corners of the scale
  • Some models have a digital display to show the weight on the junction box

Standard Load Cell Junction Boxes:

load cell junction box

  • Less expensive
  • Works with nearly any load cell amplifier or weight indicator
  • Scale technicians are familiar with them

We recommend using the digital version when setting up a critical weighing system, the fault monitoring instantly lets the operator know when there is a load cell issue.  This feature can prevent overfilling or running out of product.  These systems are also beneficial when setting up a high capacity scale such as a large tank weighing system when you can not easily load each corner of the scale with test weights to adjust the corners.  A digital load cell junction box would allow you to enter the mV/V value found on the load cells calibration certificate into the device and digitally trim them without test weights.

Digital Load Cell Junction Box Conclusion:

Using the an intelligent digital j-box is a newer offering for most manufacturers, it is typically only compatible with the individual company’s weight indicators.  The advantages are many, other than the initial cost (standard j-box is about $250 and the digital versions start around $430).