Products
Key Benefits of Rosemount Liquid Level Detectors
Overfill Prevention
- Vibrating fork switches are ideal for overfill prevention applications
- Emerson’s Rosemount 2120, 2130 and 2140:SIS are third party- certified according to the requirements of IEC61508, suitable for use in SIL2 systems
- Fast drip fork design gives a quicker response time, especially with viscous liquids
- Point level detection technology that is optimized for a wide range of media types
Resources
Frequently Asked Questions
Find Answers to The Most Frequently Asked Questions About Liquid Level Switches
Vibrating level switches are ideal for overfill prevention, high and low-level alarms, and pump protection. They are used in various industries, including chemical processing, water treatment, and food and beverage production.
The main advantages include their resilience to flow, foam, bubbles, and variations in material properties. They provide reliable measurements even in challenging conditions and are virtually unaffected by the properties of the material being measured.
A float switch uses a buoyant float to detect liquid levels, triggering a switch when the float moves. A vibrating level switch uses a vibrating rod or fork to detect material presence, suitable for both liquids and solids, based on changes in vibration frequency. A vibrating fork offers a more reliable, maintenance-free level detection for challenging materials and conditions.
A vibrating level switch works by using a piezoelectric crystal to convert electrical energy into mechanical vibrations. When the vibrating rod or fork contacts the material, the vibration is dampened. This change is detected by the electronics in the switch, which then alters the state of the relay to indicate the presence of the material.