Measurement Expert Blog

You have liquid in containers, and you need to keep track of the liquid in those containers. You already know that liquid level measurements come in two types: continuous measurements that give on-going feedback about the level of the liquid being measured, and discrete measurements that give, essentially, a Yes or No answer to the question, "Is the liquid at this particular level?" But which technology type is the right one for you? Your liquids don’t require "up-to-the-minute" monitoring, you just need to know when "critical levels" are reached. Congratulations, you need a float switch!

Magnetostrictive Float Level Probes are built to provide highly accurate, continuous measurements in the toughest environments. The electro-magnetic measurement technology is extremely precise, and when protected by an appropriate stem material, it is unaffected by almost all potential environmental interferences. While other sensor technologies might handle one or two of these challenging situations, magnetostrictive probes can work through all of them.

Float switches are used for point-level detection and are commonly used to control other devices such as alarms and pumps when a liquid level rises or falls to a specific point. APG’s Stainless Steel Float Switches are used in a variety of industries and applications including applications in food and beverage, water and wastewater, and chemical industries. APG’s Stainless Steel Float Switches feature NSF 169 approval making them a great selection for food and beverage applications. Below are examples of food and beverage industry applications APG’s Float Switches are used in.

Water and wastewater are often used as shorthand for culinary water delivery and sewage transportation and treatment systems, which works well from a utilities and residential/commercial stand point. But industrial water users have a much broader concept of both (clean) water and wastewater. Rather than just potable water, "clean water" can be any water that has not yet been used, no matter what the intended purpose. "Wastewater," then, is any post-use water, not just raw sewage.