Liquid level sensors and float switches are extremely common devices which are necessary for a variety of applications in industries as diverse as aerospace, HVAC, oil and gas, manufacturing, wastewater treatment, brewing and distilling, and many more.
While many float switches and other liquid level sensors have become increasingly durable and reliable over time, there are still like any other devices in some crucial respects; namely, they eventually wear out and need to be replaced.
Float switches and other liquid level sensors will have a working lifespan that varies according to how they’re built as well as the specifics of the application for which they’re used, so there are no hard and fast rules for determining how long a sensor will last. Instead, it’s often necessary to rely on one’s powers of observation to know when a sensor is in need of replacement.
Liquid Level Sensor Replacement: Signs and Symptoms
High Level or Low Level Alarms Not Working
One of the most common applications for liquid level sensors is the triggering of high level or low level alarms for tanks. This is known as point-level detection, and is to prevent overflow and potential damage to the equipment. If you notice that overflows or low level conditions without alarms or emergency cutoffs being triggered, it is likely a sign that the level sensor(s) responsible aren’t functioning properly.
Mismatch between Actual Tank Levels and Level Display
In addition to point-level detection for high and low levels, continuous level sensors can be used to measure the exact levels of a tank or vessel in real time. If you use continuous level measurement, and you notice that your tank readout level display doesn’t match actual levels, usually the problem is with the level sensor.
Other Malfunctions
Level sensors may also be used to activate or deactivate other components such as pumps, valves, and more. If any of the components you use in your industrial application that rely on a level sensor is beginning to malfunction, the problem could be with the switch.
What to Do If You Need New Liquid Level Sensors
If your liquid level sensors are worn out or need to be replaced, get in touch with the team at SMD Fluid Controls. Industry leaders in the field of float switches and liquid level sensor, SMD can help with standard or custom level sensing solutions for any industry or application.