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:
- 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:
- 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).