Rosemount 2120 Vibrating Level Switch The 2120 is a popular choice for its simplicity, ease-of-use, and reliability, in high and low level alarm applications. 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 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. 8/16 mA (’Off’/’On’), Direct Load, PNP, Relay, or NAMUR switched output electronics (depending on version) Threaded process connection for side, top, or bottom mounting 2 off M20 conduit entries for supplied cable gland and blanking plug (cable not supplied) Easy selection of Dry ’On’ or Wet ’On’ Mode and Switching Delay Magnetic test point makes functional test easy Vibrating Liquid Level Switches

Rosemount Liquid Level Switch 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 60VDCProcess connection size / type is 3/4-in. BSPT (R) threadOperating temperature ranges between -40°C and 150°CRugged stainless steel body and fork, the ideal choice for OEM applicationsCompact, lightweight design, perfect for small vessel or pipe installationsSafe and easy electrical hook upMagnetic test point for simple functional test4-way plug connection polarity insensitivity and short circuit protectionFast Drip fork design gives quicker response time, especially with viscous liquidsThe ’heartbeat’ LED gives an instant visual indication that the unit is operationalHygienic connections available, the fork shape is optimized for hand polishing to meet hygienic requirementsNo moving parts or crevices for virtually no maintenanceMagnetic test point makes functional test easyThreaded process connectionConnection 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 Certifications IP66/67 rated

Rosemount Liquid Level Switch 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 Direct load switching with plug connection (2 wire) 21 to 264 Vac 50/60Hz, 21 to 264 VdcProcess connection size / type is 2-in. (51 mm) Tri ClampOperating temperature ranges between -40°C and 150°CRugged stainless steel body and fork, the ideal choice for OEM applicationsCompact, lightweight design, perfect for small vessel or pipe installationsSafe and easy electrical hook upMagnetic test point for simple functional test4-way plug connection polarity insensitivity and short circuit protectionFast Drip fork design gives quicker response time, especially with viscous liquidsThe ’heartbeat’ LED gives an instant visual indication that the unit is operationalHygienic connections available, the fork shape is optimized for hand polishing to meet hygienic requirementsNo moving parts or crevices for virtually no maintenanceMagnetic test point makes functional test easyThreaded process connectionConnection 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 Certifications IP66/67 ratedThe industry standard DIN 43650 plug/socket is used for a fast connection

Rosemount Liquid Level Switch 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 Materials of construction is 316/316L Stainless Steel (1.4401/1.4404) dual certifiedProcess connection size is 1in BSPT (R) threadDirect load switching ranging between (Mains 2-wire) 20VAC and 264VAC 50/60Hz and between 20VDC and 60VDCStandard surface finishFork length is standard length of 1.7in (44mm)Function virtually unaffected by flow, bubbles, turbulence, foam, vibration, solids content, coating products, liquid properties, and product variationsOperation temperatures ranges from –40°C and 150°CA ’heartbeat’ LED indicates its operating state, LED also flashes when the switch output is ’off’ and is constantly lit when 'ON'Adjustable switching delay prevents false switching in turbulent or splashing applications’Fast drip’ fork design gives quicker response time, especially with viscous liquidsRapid wet-to-dry and dry-to-wet time setting for highly responsive switchingFork shape is optimized for polishing to meet hygienic requirementsMechanical- and electro-polishing optionsMagnetic test point makes functional test easyNo moving parts or crevices for virtually no maintenanceSpecific extended fork length is factory default length (only if fork length A or H is selected) Applications Overfill protectionHigh and low point level alarmsPump control or limit detectionRun dry or pump protectionHygienic applicationsHigh-temperature applicationsWireless applicationsMost liquids including, coating liquids, aerated liquids and slurries

Rosemount Liquid Level Switch 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 Materials of construction is 316/316L stainless steel (1.4401/1.4404) dual certifiedProcess connection size is 1in BSPT (R) ThreadFork length is standard length of 1.7in (44mm)Operation temperatures ranges from –40°C and 150°CFunction virtually unaffected by flow, bubbles, turbulence, foam, vibration, solids content, coating products, liquid properties, and product variationsA ’heartbeat’ LED indicates its operating state, LED also flashes when the switch output is ’off’ and is constantly lit when 'on'Adjustable switching delay prevents false switching in turbulent or splashing applications’Fast drip’ fork design gives quicker response time, especially with viscous liquidsRapid wet-to-dry and dry-to-wet time setting for highly responsive switchingFork shape is optimized for polishing to meet hygienic requirementsMechanical- and electro-polishing optionsMagnetic test point makes functional test easyNo moving parts or crevices for virtually no maintenance Applications Overfill protectionHigh and low point level alarmsPump control or limit detectionRun dry or pump protectionHygienic applicationsHigh-temperature applicationsWireless applicationsMost liquids including coating liquids, aerated liquids and slurries Certifications ATEX Intrinsic Safety

Rosemount Liquid Level Switch 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 Direct load switching with plug connection (2 wire) 21 to 264 Vac 50/60Hz, 21 to 264 VdcProcess connection size / type is 3/4-in. BSPT (R) threadOperating temperature ranges between -40°C and 150°CRugged stainless steel body and fork, the ideal choice for OEM applicationsCompact, lightweight design, perfect for small vessel or pipe installationsSafe and easy electrical hook upMagnetic test point for simple functional test4-way plug connection polarity insensitivity and short circuit protectionFast Drip fork design gives quicker response time, especially with viscous liquidsThe ’heartbeat’ LED gives an instant visual indication that the unit is operationalHygienic connections available, the fork shape is optimized for hand polishing to meet hygienic requirementsNo moving parts or crevices for virtually no maintenanceMagnetic test point makes functional test easyThreaded process connectionConnection 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 Certifications IP66/67 ratedThe industry standard DIN 43650 plug/socket is used for a fast connection

Rosemount Liquid Level Switch 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 Direct load switching with plug connection (2 wire) 21 to 264 Vac 50/60Hz, 21 to 264 VdcProcess connection size / type is 1-in. BSPT (R) threadOperating temperature ranges between -40°C and 150°CRugged stainless steel body and fork, the ideal choice for OEM applicationsCompact, lightweight design, perfect for small vessel or pipe installationsSafe and easy electrical hook upMagnetic test point for simple functional test4-way plug connection polarity insensitivity and short circuit protectionFast Drip fork design gives quicker response time, especially with viscous liquidsThe ’heartbeat’ LED gives an instant visual indication that the unit is operationalHygienic connections available, the fork shape is optimized for hand polishing to meet hygienic requirementsNo moving parts or crevices for virtually no maintenanceMagnetic test point makes functional test easyThreaded process connectionConnection 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 Certifications IP66/67 ratedThe industry standard DIN 43650 plug/socket is used for a fast connection

Rosemount 2120 Vibrating Level Switch The 2120 is a popular choice for its simplicity, ease-of-use, and reliability, in high and low level alarm applications.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 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. 8/16 mA (’Off’/’On’), Direct Load, PNP, Relay, or NAMUR switched output electronics (depending on version)Threaded process connection for side, top, or bottom mounting2 off M20 conduit entries for supplied cable gland and blanking plug (cable not supplied)Easy selection of Dry ’On’ or Wet ’On’ Mode and Switching DelayMagnetic test point makes functional test easy

Rosemount Liquid Level Switch 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 Materials of construction is 316/316L Stainless Steel (1.4401/1.4404) dual certifiedProcess connection size is 1in BSPT (R) threadRelay DPCO, 20 to 264 Vac 50/60Hz, 20 to 60 Vdc Standard surface finishHousing has glass filled nylon and M20 conduits/cable threadsFork length is standard length of 1.7in (44 mm)Function virtually unaffected by flow, bubbles, turbulence, foam, vibration, solids content, coating products, liquid properties, and product variationsOperation temperatures ranges from –40°C and 150°CA ’heartbeat’ LED indicates its operating state, LED also flashes when the switch output is ’off’ and is constantly lit when 'on'Adjustable switching delay prevents false switching in turbulent or splashing applications’Fast drip’ fork design gives quicker response time, especially with viscous liquids Rapid wet-to-dry and dry-to-wet time setting for highly responsive switchingFork shape is optimized for polishing to meet hygienic requirementsMechanical- and electro-polishing optionsMagnetic test point makes functional test easyNo moving parts or crevices for virtually no maintenanceSpecific extended fork length is factory default length (only if Fork Length A or H is selected) Applications Overfill protectionHigh and low point level alarmsPump control or limit detectionRun dry or pump protectionHygienic applicationsHigh-temperature applicationsWireless applicationsMost liquids including coating liquids, aerated liquids, and slurries Certifications ATEX Intrinsic Safety