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Fork Liquid Level Switch--Rosemount 2120 Vibrating Fork Liquid Level Switch

Fork Liquid Level Switch--Rosemount 2120 Vibrating Fork Liquid Level Switch

Fork Liquid Level Switch Rosemount 2120 Vibrating Fork Liquid Level Switch,This fork liquid level switch 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, five different switching functions, extended fork lengths, hazardous area, basic self-checking functionality, and overfill approvals.

Description

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Fork Liquid Level Switch

Rosemount 2120 Vibrating Fork Liquid Level Switch

This fork liquid level switch 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, five different switching functions, extended fork lengths, hazardous area, basic self-checking functionality, and overfill approvals.


Main features:


1) Plastic or metal housings
2) 316 SST, Alloy C, or ECTFE/PFA co-polymer coated 316 SST wetted parts
3) Process temperatures from -40 to 150 degrees
4) Process pressures to 100bar g/1450 PSI
5) Threaded, hygienic, or flanged process connections (now with JIS flanges)
6) Externally visible Heartbeat LED (except on metal housings)
7) Magnetic test point on side of housing
8) Easy terminal access and hook-up
9) Adjustable switching delay
10) “Fast Drip “ fork design for responsive switching

Specification


Key Specification

Approvals

Certification

Explosion-proof, Intrinsically Safe, and Ordinary   Location

Approved for overfill protection according to DiBt/ WHG   regulations.
Certificate number: Z-65.11-522

Construction

Housing

Glass-filled nylon (plastic), stainless steel, or   Aluminum

Wetted Material

Stainless steel (1.4404), ECTFE/PFA copolymer (coated 316L SST), or Corrosion Resistant Nickel Alloy C

IP Rating

IP66 ⁄ 67

Connections

Process Connection

Threaded, flanged, or hygienic

Electrical

Electrical Connection

Terminal block

Output

Direct load switching (ac or dc)

DPDT Relay output

PNP for Programmable Logic Controllers

NAMUR, or

8/16 mA

Operating Conditions

Process Temperature

-40 to 302 °F (-40 to 150 °C)

Process Pressure

Up to 1450 psi at 122 °F (100 barg at 50 °C)

Note: Extended lengths are available.

Application

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




If you have more interest, please send  your valuable inquiry to this email:
postmaster@wtindustrialeqpt.com


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