What is a typical bubbler type controller failure?

A typical failure in a bubbler type controller is associated with the air compressor failing. The bubbler type system relies on a continuous supply of compressed air to create an air bubble in a tube that extends down into the liquid being measured, such as in a pump station or tank. When the air compressor cannot function properly, it disrupts the flow of air through the tube. This results in an inaccurate reading of the liquid level since the air pressure is essential for the system to operate effectively. Without the air bubble, the pressure readings fluctuate or become nonexistent, leading to potential operational issues such as overflows or pump failures.

In contrast, while a broken float line and a short in electrode leads can indeed cause issues in different types of monitoring systems, they do not specifically pertain to the operational integrity of a bubbler type controller. Additionally, an electrode coated with grease is more relevant to issues affecting conductivity and measurement accuracy in systems that utilize electrodes for level sensing, rather than a bubbler system.