Can I connect two controllers to one scale?

I would like to compare my new Hardy Weight Controller to the older model I already have installed. Can I connect them to the same scale for this comparison?

To connect two weight controllers to the same scale follow the attached wiring diagram.

CAUTION:
If the two controllers have different excitation voltage levels, use the lower excitation voltage. Voltages higher than the Hardy controller excitation voltage wired into the Hardy Process Solutions weight controller SENSE circuits will damage the A/D converter hardware components.