The Rosemount 2110 is a compact vibrating fork level switch designed to detect whether liquid has reached a predefined high or low level. A piezoelectric element vibrates the fork at its natural frequency. When the fork comes into contact with liquid or becomes uncovered, the change in vibration frequency is detected by the electronics, which switches the output accordingly.
Its short-fork construction minimizes intrusion into the vessel or pipeline, making it suitable for space-constrained installations. The switch is designed to operate reliably under many common process conditions, including turbulence, foam, vibration, and changes in liquid properties. Built-in diagnostics and a magnetic test point simplify routine condition checks and functional testing.
Key Features
- Vibrating fork technology for reliable liquid-level detection
- Compact stainless-steel housing for space-constrained installations
- Short-fork design suitable for small tanks and in-pipe mounting
- No moving parts to reduce mechanical wear
- No routine calibration required, simplifying commissioning
- Heartbeat LED for visual device-status indication
- Magnetic test point for convenient functional testing
- Fast Drip fork design for quicker response, especially in viscous liquids
- Adjustable switching delay on supported configurations to help reduce false switching
- Built-in diagnostics for device health monitoring
- Hygienic connection options for sanitary applications
- Overfill protection certification options for suitable installations
Suitable Applications
- High-level and low-level alarms
- Basic tank overfill prevention
- Small vessel level detection
- In-pipe liquid-level monitoring
- Pump protection and dry-run prevention
- Leak detection
- Chemical processing
- Food and beverage production
- Pharmaceutical and hygienic processes
- Liquid storage tanks
- OEM equipment and compact process systems
Technical Highlights & Selection Considerations
- Detection principle: The switch monitors changes in fork vibration frequency as the fork becomes immersed in or uncovered by liquid.
- Installation space: Its compact design is suitable for small vessels and in-pipe mounting where available space is limited.
- Process temperature: The published product data lists an operating range of approximately −40 to 150°C (−40 to 302°F). Verify the limits for the selected configuration.
- Process pressure: Published specifications list operation from approximately −0.25 to 100 bar (−3.6 to 1,450 psi). Confirm the allowable pressure for the selected process connection and operating temperature.
- Electrical output: The available supply voltage and switching output depend on the selected electronics.
- Process connection: Threaded and hygienic connection options are available. Select the connection type and size appropriate for the vessel or pipeline.
- Viscous liquids: The Fast Drip fork design helps improve response as liquid drains from the fork. Suitability depends on the liquid's viscosity and process conditions.
- Switching behavior: Confirm whether the selected configuration supports an adjustable time delay if the application involves splashing or turbulence.
- Hygienic applications: Selected configurations offer 3-A and EHEDG certifications and compliance with applicable FDA and ASME-BPE requirements. Verify the exact approvals required.
- Overfill protection: DIBt/WHG approval is available for specified configurations. Confirm that the selected version meets local regulatory and application requirements.
Frequently Asked Questions
Q1: What is the Rosemount 2110 used for?
It detects high or low liquid levels in tanks, small vessels, and pipelines, supporting alarms, overfill prevention, and pump protection.
Q2: How does the Rosemount 2110 work?
A piezoelectric element vibrates the fork at its natural frequency. When the liquid contacts or leaves the fork, the vibration frequency changes, triggering the corresponding switching output.
Q3: Does the Rosemount 2110 require calibration?
No routine field calibration is required for normal operation. Follow the manufacturer's instructions for installation and functional testing.
Q4: Is the Rosemount 2110 suitable for viscous liquids?
Yes. Its Fast Drip fork design helps liquid drain away more quickly, improving response in many viscous-liquid applications. Actual performance depends on the liquid and installation conditions.
Q5: Can the Rosemount 2110 be used in food and beverage applications?
Yes. Selected configurations offer hygienic certifications and connection options for sanitary processes. Confirm the required approvals and process connection before ordering.
Q6: What should I check before purchasing?
Confirm the liquid properties, operating temperature and pressure, process connection, electrical output, supply voltage, installation space, and any hygienic or overfill protection certifications required.
