The Rosemount Liquid Level Switch is designed using the principle of a tuning fork. A piezo-electric crystal oscillates the forks at their natural frequency. The frequency of the vibrating fork sensor changes depending on the medium in which it is immersed. The denser the liquid, the lower the frequency. When used as a low-level alarm, the liquid in the tank or pipe drains down past the fork, causing a change of natural frequency that is detected by the electronics and switches the output state. When 2110 is used as a high-level alarm, the liquid rises in the tank or pipe, making contact with the fork which then causes the output state to switch.
Features and Benefits
PNP low voltage switching with plug connection ranging between 18VDC and 60VDC Process connection size / type is 3/4-in. BSPT (R) thread Operating temperature ranges between -40°C and 150°C Rugged stainless steel body and fork, the ideal choice for OEM applications Compact, lightweight design, perfect for small vessel or pipe installations Safe and easy electrical hook up Magnetic test point for simple functional test 4-way plug connection polarity insensitivity and short circuit protection Fast Drip fork design gives quicker response time, especially with viscous liquids The ’heartbeat’ LED gives an instant visual indication that the unit is operational Hygienic connections available, the fork shape is optimized for hand polishing to meet hygienic requirements No moving parts or crevices for virtually no maintenance Magnetic test point makes functional test easy Threaded process connection
Connection type of 3/4in BSPT (R) thread
Applications
Overfill protection High and low level alarms Leak detection Run dry or pump protection Pump control or limit detection Hygienic applications
