Brand-New/Original Rosemount Solar or Battery Vibrating Fork 2120 Level Switch

• Customization: Available
• Structure: Vibrating Fork Level Switch
• Type: Level Switch
• Model NO.: 2120
• Certification: CE
• Switching Element: Level Switch
• Application: Fluid Measurement
• Contactless Type: Level Switch
• Contact: Contactless
• Brand: Rosemount
• Output Signal: 4–20 Ma
• Protection Rating: IP66/NEMA 4X
• Communication Protocol: Direct Load, PLC/PNP, Relay, 8/16 Ma, Namur
• Process Media Density: Minimum 37.5 Lb/FT3
• Viscosity: 0.2 to 10000 Cp
• Operating Pressure: Full Vacuum to 1450 Psi
• Operating Temperature: -40 to 302 °f
• Safety: Sil2 IEC 61508 Certified
• Diagnostics: Electronic Self-Checking and Condition Monitoring
• Power Supply: 20-253VAC, 20-137VAC, or 18-90VDC
• Output: Spdt Relay
• Response Time: <1 Second
• Process Pressure: up to 1450 Psig
• Process Temperature: -40°c to 150°c
• Transport Package: with Carton or Wooden Box Package
• Specification: 30X30X20 cm
• Trademark: Rosemount
• Origin: Singapore, China
• HS Code: 8479909090
• Production Capacity: 2000
• Package Size: 30.00cm * 30.00cm * 20.00cm
• Package Gross Weight: 5.000kg

Product Description

Rosemount Emerson 8732 Electromagnetic Flow Meter Circuit Board

The Rosemount 2120 Level Switch provides easy to install, reliable level detection and control. 3rd party IEC61508 (SIL2) safety and hygienic certification with choice of outputs makes it suitable for a wide range of applications. It has no moving parts, needs no calibration and is virtually unaffected by process conditions. Adjustable switching delay prevents false switching in turbulent applications. Understand what is going on with your process- the visible heartbeat LED provides device status and health, and magnetic test point provides an easy-to-use functional test.

Advanced Signal Processing Capabilities

The Rosemount 2120 operates on the principle of a vibrating fork. When the fork is in air, it vibrates at its natural frequency. However, when the liquid level in the tank or pipe reaches the fork, the presence of the liquid changes the mass and damping effect on the fork. This causes a shift in the natural frequency of the fork's vibration. The electronics within the level switch are designed to detect this change in frequency. When the frequency deviation exceeds a pre - set threshold, the switch changes its output state, indicating a change in the liquid level. This simple yet effective principle allows for precise and reliable level monitoring.

The Rosemount 2120 Level Switch - Vibrating Fork is a highly versatile and reliable device. Its unique features, wide range of technical specifications, and suitability for diverse applications make it an excellent choice for industries that require accurate and efficient level detection and control solutions. Whether in industrial processes, food and beverage production, or pharmaceutical manufacturing, the Rosemount 2120 can be relied upon to provide consistent and reliable performance.

Key Features:

Typical Applications:

Reliable Detection : Works with liquids, powders, and granules, unaffected by foam, turbulence, or buildup.
No Calibration Needed : Pre-tuned fork design for plug-and-play installation.
Harsh Environment Ready : High-pressure and high-temperature options available.
Low Maintenance : No moving parts, resistant to material buildup.

1.Magnetic test point makes testing of the Rosemount 2120 easy
2.Can be operated using the sun or battery as a power source with the 12Vdc option
3.Fast drip fork design gives a quicker response time, especially with viscous liquids
4.Adjustable switching delay enables easy handling of turbulent and splashing applications
5.3-A and EHEDG certificates for hygienic applications. Compliance with FDA and ASME-BPE standards

Specification

Model	Rosemount 2120 Vibrating Fork Level Switch
Technology	Tuning fork vibration (mechanical resonance)
Process Connection	1" NPT, 1" BSP, 1½" NPT, 1½" BSP, or ANSI/ISA flanges
Material	316L stainless steel (standard), Hastelloy C-276 (optional)
Seal Material	FKM (standard), FFKM, EPDM, or PTFE (optional)
Process Temperature	-40°C to 150°C (-40°F to 302°F) standard; up to 204°C (400°F) with high-temp option
Process Pressure	Up to 1450 psig (100 bar)
Sensitivity	Adjustable (0.7-1.1 SG liquid, 0.03-0.2 lb/ft³ for solids)
Response Time	<1 second
Output	SPDT relay (DPDT optional), 5A @ 250VAC
Power Supply	20-253VAC, 20-137VAC, or 18-90VDC
Electrical Connection	½" NPT or M20
Housing Rating	NEMA 4X/IP66
Approvals	SIL 2, ATEX, IECEx, FM, CSA, CRN, PED
Applications	Liquids, powders, granules; resistant to coating, buildup, and bubbles

Company Profile

Kerui (Weifang) Automation Equipment Co., Ltd.

Since: 2025
Advanced Features:

At KeRui (Weifang), we take pride in offering a comprehensive range of products and bespoke technical services tailored to exceed the unique demands of our esteemed clientele. From state-of-the-art flow instruments to precise liquid level gauges, advanced temperature sensors, and robust pressure measurement devices, our offerings epitomize innovation and technological superiority.

In fostering strategic alliances with esteemed brands such as Rosemount, Honeywell, Yokogawa, and Siemenss, we ensure the delivery of premium-grade products and pioneering solutions that uphold the highest industry standards.

Certifications

Packaging & Shipping

FAQ

1.Does KeRui provide technical support to customers after sales?

 Yes, we provide comprehensive technical support to ensure our customers derive maximum value from our products.

2.How long has KeRui been partnering with leading brands in the automation industry?

 We have been partnering with top brands such as Rosemount, Honeywell, Yokogawa, and Siemenss to deliver top-quality industrial automation solutions since our establishment.

3. What are the advantages of using KeRui's flow meters in industrial applications?

 Our flow meters offer precise measurement, reliability, and durability, making them ideal for critical industrial processes.

4. How does KeRui ensure that its PLCs and DCS systems meet industry standards?

 We adhere strictly to international standards and conduct rigorous testing to ensure our PLCs and DCS systems meet or exceed industry requirements. 

5. What are the warranty terms offered by KeRui for its industrial automation instruments?

 Our warranty terms ensure coverage for manufacturing defects, providing peace of mind to our customers. 

6. How does KeRui manage logistics for international shipments?

 We work with reliable logistics partners to ensure efficient and secure international shipments of our products.

7. What are the core values that drive KeRui's commitment to customer satisfaction?

 Our core values include integrity, reliability, innovation, and customer-centricity, guiding everything we do. 

8. How does KeRui stay updated with the latest technological advancements in industrial automation?

 We invest in research and development and maintain partnerships with leading technology providers to stay at the forefront of innovation.