Rosemount 2120 Vibrating Fork Liquid Level Switch 

Superior Reliability in a Universal Package

The Rosemount 2120 is based on vibrating short fork technology, making it suitable for virtually all liquid applications. Features include a complete range of process connections, wide choice of housing and wetted parts materials, four different switching functions, extended fork lengths, hazardous area, and overfill approvals. The 2120 can withstand temperatures up to 302°F (150°C) and pressures to 1450 psig (100 barg). This combination of features make it configurable to almost all requirements.

• Function virtually unaffected by flow, turbulence, bubbles, foam, vibration, solids content, coating, properties of the liquid, and product variations
• No need for calibration and requires minimum installation procedures
• Easy terminal access, polarity insensitive and short circuit protection
• No moving parts or crevices means virtually no maintenance
• Electronic, self-checking and condition monitoring – Visible heartbeat LED gives status and health information
• Adjustable Switching Delay for turbulent/splashing applications
• Local Magnetic Test Point makes functional test easy
• Small in size and weight, short forks
• “Fast Drip” Fork Design gives quicker response time especially with viscous liquids
• Explosion/Flameproof and Intrinsically Safe option

Applications for the Rosemount 2120 Liquid Level Switch

Rosemount 2120 can be used for point level measurements on liquids in most processes and most industries. Applications include:

• Water ingress detection
• Overfill protection
• Limit detection
• Pipe installation (pump protection)
• High and low level alarm
• Hygienic applications
• Oil tank farms
• Fine chemicals and pharmaceuticals

More Information

Emerson Process Management, Rosemount Division, 8200 Market Blvd. Chanhassen, MN USA 55317 North America: 1-800-999-9307    International: 952-906-8888  Fax:  952-949-7001

Last Updated 07/10/07

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