I am using older load cells from Hardy Process Solutions (or from another company) and I want to make sure they are functioning properly before I use them in another application. I don't have the Hardy feature "Integrated Technician" in my junction box or controller, so I checked the installation/troubleshooting guide which says to check the resistance between the signal wires and the excitation wires and the resistance of each should be around 350 ohms. Well, the resistance between the signal wires on all 8 load cells was right at 350 ohms, but the resistance between the excitation wires on all 8 load cells was around 387 ohms. So, are all of these load cells bad, or is it ok for the excitation resistance to be 387 ohms?