流量计vs. Load Cells: How Do They Measure Up?
While flow meters and load cells are two very different technologies, their paths may sometimes overlap, making it a challenge to decide which technology would be best suited for a certain application.
Aflow metermay come in many forms, but it is usually an in-line device that measures the rate or flow of a fluid—either in volume or mass. Aload cell是一种允许称量罐或容器的内容的装置。
在测量连续流动时，流量计最佳地工作，而不是频繁的开始和停止，它们非常适合散装（根据仪表）的散装（取决于仪表）。还可以使用流量计进行各种系统检查和平衡，从确保在进行充分的流速期间clean-in-place (CIP)循环以帮助调节泵的流动。
However, a flow meter is located in the tubing, upstream from a tank, which means there is a difference between what the meter reads and what is truly in the tank. Programming changes can correct for the delays in measurement caused by this difference, but they can be imprecise and require frequent calibration.
A load cell measures the weight of the tank itself, so delays are minimized. Load cells offer a particular benefit when dealing with products that don’t usually work well with flow meters. Liquids with entrained air or bubbles may give meters trouble, but they are no problem for load cells. Even dry ingredients like powders can be measured just like liquid adds using load cells.
凭借Alfa Laval的防震性数字称重电池，无接触电容传感器安装在负载电池体内。由于传感器未被放置在直接载荷下，因此感测装置的偏转或变形，因此在时间之后提供准确的测量时间。负载电池系统是精确批量的良好解决方案。
此外，较新的“电容性”称重电池（如来自Alfa Laval的防震数字称重传感器）在称重方面提供高精度，并且几乎没有维护。与传统的负载电池不同，电容负载电池每次使用时都会保持其准确性，而不需要重新校准，即使多年的滥用。
使用负载细胞b的一个缺点e that only one ingredient can be added and measured at one time, while using multiple flow meters could allow for simultaneous additions of different products.
In a side-by-side comparison, adding load cells to one tank may initially cost more than one flow meter. However, if multiple flow meters are needed for each tank, the initial investment can often be lower for a load cell setup. After the initial investment, load cells can pay for themselves by minimizing ingredient waste and quality issues due to batching errors.
There are many options and styles available that can be customized to fit user needs, whether load cells or flow meters are the best fit for an application.
ABOUT CSI
Central States Industrial Equipment (CSI) is a leader in distribution of hygienic pipe, valves, fittings, pumps, heat exchangers, and MRO supplies for hygienic industrial processors, with four distribution facilities across the U.S. CSI also provides detail design and execution for hygienic process systems in the food, dairy, beverage, pharmaceutical, biotechnology, and personal care industries. Specializing in process piping, system start-ups, and cleaning systems, CSI leverages technology, intellectual property, and industry expertise to deliver solutions to processing problems. More information can be found atwww.xxshagua.com..