Batching Best Practices

This intent of this paper is to present a few Best Practices I have discovered over the years that lead to an improved performance of ingredient automation (batching) systems. Any welding should be done prior to installation of the load cells. Proper drainage should be provided to prevent the load point assembly from standing in water. All load cells must be on the same plane (level) within 0.5 degrees of each other (which is approximately an inch over 10 feet). In any batching application, the volume of material in transit between the shutoff device and the actual batch container has an impact on the ability to perform fine batch adjustments. Piping best practices are also important. Some liquid flow sensors require staying flooded in order to provide a reliable feedback signal. Nearly all flow devices need to be isolated from vibration and many flow devices (liquid and gas) assume a uniform velocity profile for their approach and exit. Even though today instruments are more tolerant of poor location, it is still best to locate the instruments with some consideration of the approach and exit conditions. …