Original Endress Hauser Fmi51 Industrial Grade Radar Liquid Level Sensor LCD Display

• Customization: Available
• Type: Single Flange Hydrostatic
• Contact: Contactless
• Model NO.: E+H FMI51
• Output Signal Type: Digital Type
• Production Process: Ceramics
• Feature: Corrosion Resistant
• Material: Stainless Steel
• IP Rating: IP68
• Certification: CE
• Customized: Customized
• Product Name: E+H Fmi51
• Brand Name: Endress Hauser
• Warranty: 1 Year
• Accuracy: 0.2%
• Customized Support: OEM
• Smart APP: None
• Resolution Ratio: 1mm
• Power Supply: 24VDC (Standard); 220VAC (Optional)
• Liquid Range: 5m or 8m
• Precision Accuracy: ±3 mm or 0.2%
• Output Signal: 4~20mA
• Ambient Temperature: -50...70°c
• Maximum Overvoltage Limit: Vacuum 25 Bar
• Process Connection: Thread R1 1/2, NPT1 1/2
• Power/Communication: Three-Wire
• Transport Package: Original and New
• Specification: 100X28X24 cm
• Trademark: E+H
• Origin: Germany
• HS Code: 9026100000
• Production Capacity: 1000 Piece/Year
• Package Size: 100.00cm * 28.00cm * 24.00cm
• Package Gross Weight: 8.700kg

Product Description

Product Description

Endress + Hauser FMI51

The Endress + Hauser FMI51, part of the Liquicap M series, has emerged as a leading solution for continuous level monitoring in a wide variety of applications. With its advanced design, robust construction, and high - performance capabilities, the FMI51 has become a trusted choice for industries ranging from chemical and petrochemical to food and beverage, and pharmaceutical. This comprehensive exploration will delve into the working principles, design features, technical specifications, applications, and advantages of the Endress + Hauser FMI51 capacitive level transmitter.One of the remarkable features of the FMI51 is its independence from the dielectric constant (DC) when the liquid conductivity is 100 μS/cm or higher. For conductive liquids, the measurement is based on the electrical conductivity rather than the dielectric properties. The FMI51 can accurately measure the level of various liquids within this conductivity range without the need for recalibration when switching between different liquid types. This is a significant advantage in industrial processes where multiple liquid substances with different dielectric constants may be present in the same system.

1.Design Features

1.1 Probe Design
Fully Insulated Rod Probe
The FMI51 is equipped with a fully insulated rod probe, which is a key design element for its performance. The insulation of the probe serves multiple purposes. Firstly, it protects the internal sensing elements from the corrosive effects of the process media. In harsh chemical environments, where the liquid may contain aggressive substances, the insulation ensures the longevity of the probe and the accurate functioning of the sensor. Secondly, the insulation helps in maintaining the integrity of the capacitive measurement. It prevents electrical interference from the surrounding environment and ensures that the measured capacitance is solely due to the presence of the liquid being monitored.

The rod probe is made from high - quality materials, often corrosion - resistant metals such as 316L stainless steel. This material choice makes the probe suitable for use in a wide range of industrial applications, including those where the liquid being measured is corrosive. The probe's surface can also be treated or coated to further enhance its resistance to build - up in applications where the liquid has a tendency to form deposits on the probe surface.
1.2 Electronics and Communication

Transmitter Electronics
The electronics within the FMI51 are designed to accurately process the capacitance signals from the probe and convert them into useful output signals. The transmitter electronics are engineered to be highly reliable and stable, even in challenging industrial environments. They often include advanced signal - conditioning circuits that can filter out electrical noise and interference, ensuring that the measured level signal is accurate and consistent.

The FMI51 can be configured with different output options. A common output is the 4 - 20mA HART (Highway Addressable Remote Transducer) signal. The 4 - 20mA signal is a standard in the industrial automation industry, allowing for easy integration with other control systems such as Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCSs). The HART protocol, on the other hand, enables two - way communication between the FMI51 and the control system. This communication allows for remote configuration of the transmitter, reading of diagnostic information, and access to additional process data.

2.Advantages

2.1 Reliability in Harsh Conditions
The FMI51's robust design, with its fully insulated rod probe, corrosion - resistant materials, and high - protection - level enclosure, makes it highly reliable in harsh industrial conditions. Whether it is exposed to high temperatures, high pressures, corrosive chemicals, or dusty and wet environments, the FMI51 can continue to operate accurately and consistently. This reliability reduces the need for frequent maintenance and replacement, leading to lower overall operating costs for industrial plants.
2.2 Wide Range of Approvals and Certifications
The FMI51 has obtained a wide range of approvals and certifications, which makes it suitable for use in a variety of applications and industries. It has international explosion protection certificates, which are essential for use in hazardous areas where the presence of explosive gases or vapors is a concern. It also has certifications related to overfill prevention (WHG), functional safety to SIL2 in accordance with IEC 61508, and hygienic certificates for use in food, beverage, and pharmaceutical industries. Additionally, it may have marine approvals for use in maritime applications. These certifications provide assurance to customers that the FMI51 meets the highest standards of safety and performance in different applications.
2.3 No Calibration Necessary for Conductive Liquids
As mentioned earlier, when the liquid conductivity is 100 μS/cm or higher, the FMI51 does not require recalibration when measuring different liquids. This feature simplifies the operation and maintenance of the device in industrial processes where multiple conductive liquid substances may be present. It saves time and effort for operators, as they do not need to perform frequent calibration procedures, and it also reduces the risk of errors associated with incorrect calibration.
2.4 Fast Measurement Reaction Time
The FMI51 offers a fast measurement reaction time, which is important in applications where rapid changes in liquid level need to be detected and responded to quickly. In a process where the liquid level is changing dynamically, such as in a continuous - flow reactor or a filling operation, the fast reaction time of the FMI51 allows for timely control actions. This helps in maintaining the stability and efficiency of the industrial process.

Specification

Accuracy	±0.5% of measured value (±0.2% optional)
Flow Range	0.1 – 12 m/s (depends on pipe size)
Pressure Rating	Up to PN40 (depending on model)
Temperature Range	-25°C to +180°C (with PFA lining)
Protection Class	IP67 / IP68 (submersible)
Output Signals	4-20mA, HART, PROFIBUS PA/DP, Pulse, Modbus RTU
Electrodes	Detect induced voltage (stainless steel, Hastelloy, titanium, or ceramic)
Coils	Generate a stable magnetic field.

Company Profile

KeRui (Weifang) Automation Equipment Co. Ltd. Has maintained a cooperatve relationship with Rosemount for 15 years, and our purchase quantity has reached 20,000 units.

We supplied the tuning fork level gauge to the Rosemount factory and have been well received by the Beijing factory. We have cooperated with Yokowaga and maintained a cooperative relationship for 8 years, and our purchase quality has reached 7000 units.

The companies we have cooperated with:

1. Awarded "Outstanding Supplier by Yanchang Petroleum in 2008

2. In December 2012, our company was awarded the "Excellent Equipment Service Award" for the expansion project of units 6 and 7 of the Guangdong Guohua Yuedaishan Power Plant

3. Awarded "Outstanding Supplier by Yaxing Group in 2013

4.200 transmitters for Haihua Group's ethylene debottlenecking transformation project in 2015.

5. In 2018, we were rewarded as a National Nuclear Power Instrumentation Industry Measurement and Testing Alliance member.

6.160 transmitters and 20 electric autuators for the Shandong Laigang Yongfeng Steel expansion project in 2019

7.In 2022, Jinneng Chemical (Qingdao) Co., Led/ Jinneng 2x450,000 tons/ year high-performance polypropylene project (newly built) equipped 460 transmitters from our company.

8. In 2022, Shandong Qinghe Chemical Technology Co., Ltd.s hydrogen peroxide method epoxy propane device and supporting hydrogen peroxide device expansion project used 253 pressure transmitters.

9.In 2022, the Wanhua Chemical HTN project NPG installed 320 transmitters and 50 sets of valve positioners.

Certifications

Our Service

OEM / ODM services
To meet the user diversified requirement, Holykell have established a set of customer service and technical support system with OEM / ODM order as the center, and responded and Handle the customer's requirements in a timely manner to ensure accurate delivery time and product quality.
Order services
Fastest reply:Professional sales engineers 7/24 online services
Payment terms:T/T ,Western union, Paypal, Credit Card, L/C others
Fast delivery: within 24 hours release the cargo (normal spec.), Customized 7-12 days after payment .
 
MAINTENANCE & AFTER-SALES SERVICES
Customer Feedback:  Sales engineers and technical engineers will be one-on-one service for you to exclude all obstacles when use our sensors.
Warranty period: 12 months
Product life-long maintenance: Holykell can provide you with the maintenance of the whole life of the sensors

Packaging & Shipping

FAQ

Q1: How long will it take you to give me the reply?

A: We will reply to you as soon as we see the information

Q2: What is the delivery time?

A: Our delivery time is within 3- 7 days after we get your payment; for large qty mass orders, the time should be confirmed again for you

Q3: How about your package? 

A: Do not worry about the package. We have a lot of experience in packing, and all our packages are wooden case packages.

Q4: How about the payment terms?

A: You can choose T/T.

Q5: Do you provide samples? 

A: Yes, we have materials in stock to help you get the samples as soon as we can.

Q6: What is the MOQ?

A:1PC.

Q7: Can I get a lower price if I order large quantities? 

A: Yes, cheaper prices with larger orders.

Q8: Why choose us?

We have a perfect customization, not only to provide you with quality products, but also to have a professional customer service team available at any time to provide you with support. We pay more attention to establishing a long-term cooperative relationship with you to achieve continuous business growth.

Q9: How can we guarantee quality?

We have strict requirements on the quality of our products, and we will conduct a final inspection of our products when we ship them.