The Rosemount 2120 has been TUV tested and approved for overfill protection according to the German DiBt/ WHG regulations. It is certified under safety devices for tanks and piping related to water pollution control.

• Function virtually unaffected by flow, bubbles, turbulence, foam, vibration, solids content, coating products, liquid properties, and product variations
• No need for calibration and requires only a minimum amount of installation
• Easy terminal access and hook-up with electrical protections
• No moving parts or crevices means virtually no maintenance
• Basic electronic self-checking and condition monitoring
• Visible Heartbeat LED shows device status
• Adjustable Switching Delay for turbulent or splashing applications
• Local Magnetic Test Point makes functional test easy
• Small in size and weight
• Short fork for minimized protrusion into pipework
• Extended lengths up to 157.5-in. (4 m)
• "Fast Drip" Fork Design gives quicker response time
• General area, Explosion-proof ⁄ Flameproof, and Intrinsically Safe options

Features & Benefits:

Features

• Plastic or metal housings
• 316 SST, Alloy C, or ECTFE/PFA co-polymer coated 316 SST wetted parts
• Process temperatures from –40 to 302 °F (–40 to 150 °C)
• Process pressures to 100 bar g/1450 PSI
• Threaded, hygienic, or flanged process connections (now with JIS flanges)
• Externally visible Heartbeat LED (except on metal housings)
• Magnetic test point on side of housing
• Easy terminal access and hook-up
• Adjustable switching delay
• ‘Fast Drip’ fork design for responsive switching

Benefits

• Small in size and weight
• Minimal amount of installation time
• No mechanical moving parts or crevices
• Maintenance free
• Resistant to plant vibration
• Short fork technology for minimized protrusion
• Replaceable electronics cassettes with versatile switch outputs
• Intrinsically safe
• Explosion-proof (metal housing)

Specifications:

Applications:

Overfill Protection

Spillage caused by overfilling can be hazardous to people and the environment, resulting in lost product and potentially high clean-up costs.

The 2120 is a limit level switch used to signal overfills at any time.

Limit Detection

Batch processing tanks often contain stirrers/agitators to ensure mixing and product ‘fluidity’. The standard user selectable time delay ranging from 0.3 to 30 seconds virtually eliminates the risk of false switching due to splashing caused by stirrers/agitators

Pipe Installation (Pump Protection)

Short forks mean minimum intrusion wet-side and allow simple low cost installation at any angle into your pipes or vessels. With the fork projecting only 2 in. (50 mm) (dependant on connection type), the 2120 can be installed in even small diameter pipes. By selecting the option of direct load switching or relay electronics, the 2120 is ideal for reliable pump control and can be used to protect against pumps running dry

High and Low Level Alarm

Maximum and minimum level detection in tanks containing many different types of liquids are ideal applications for the 2120. The robust 2120 operates continuously at temperatures up to 302 °F (150 °C) and operating pressures up to 1450 psig (100 barg) making it perfect for use as a high or low level alarm. It is common practice to fit an independent high level alarm switch as a backup device to any other level device installed in case of primary device failure.

Hygienic Applications

With the option of highly polished forks providing a surface finish (Ra) better than 0.4 μm, the 2120 meets the principle design criteria of the most stringent hygienic requirements used in food and beverage, and pharmaceutical applications. Manufactured in stainless steel the 2120 is robust enough to easily withstand steam cleaning (CIP) routines at temperatures up to 302 °F (150 °C).

Other Applications

·  Wireless applications (when used in conjunction with the Rosemount 702 Wireless Discrete Transmitter)

·  Vessel leak detection

·  Water ingress detection

Associated Products:

Rosemount 2120 Leakage Control on Double-Walled Tanks
Rosemount 2120 Low Level Alarm
Rosemount 2120 on Hazardous Chemicals
Rosemount 2120 on Low Vessel Drain Duty