ABB PFCL201C 20KN 3BSE023409R20 Weighing Sensor

ABB PFCL201C 20KN 3BSE023409R20 Weighing Sensor

Product Overview

The ABB PFCL201C (model name: 3BSE023409R20) 20KN weighing sensor is a core sensing device in ABB's industrial measurement and control field, designed for precise measurement of weight and force values in industrial environments. This sensor adopts the principle of strain gauge measurement, which can convert the mechanical force (weight) it bears into a proportional electrical signal, providing high reliability raw data support for subsequent data processing and control.

As a representative product of ABB's weighing measurement series, it has a rated load of 20KN and features high measurement accuracy, strong environmental adaptability, and good stability. It can be seamlessly compatible with various ABB weighing instruments, PLCs, and DCS systems, and is widely used in industries such as metallurgy, chemical engineering, building materials, logistics warehousing, and food processing for tank weighing, belt scale measurement, reactor force measurement, and production ingredient control. It provides key guarantees for precise measurement, quality control, and process optimization in industrial production.

Core functions and technological advantages

2.1 Core Functions

-Accurate force value electrical signal conversion: The core adopts a high-precision metal strain gauge bridge circuit. When subjected to weight or force value, the strain gauge deforms and causes resistance changes. It is converted into a DC voltage signal linearly proportional to the load through a Wheatstone bridge, achieving accurate perception of weight signals.

-Wide range stable measurement: With a rated load of 20KN, it supports continuous measurement within the range of 0-20KN and has good linear characteristics. It can maintain high-precision output within the range of 10% -100% of the rated load, meeting the measurement requirements under different working conditions.

-Real time signal output and feedback: Using standardized signal output forms, measurement data can be transmitted in real time to weighing instruments or control systems, providing fast data support for real-time monitoring and closed-loop control in the production process, with a response time of ≤ 5ms.

-Overload and Overpressure Protection: With an overload protection capability of 150% of the rated load, when the load exceeds the rated value, the sensor structure and internal circuit can effectively resist the impact, avoid permanent damage, and output overload alarm related signals.

-Temperature compensation function: Built in multi-stage temperature compensation circuit, which can correct the influence of ambient temperature on measurement accuracy within a wide temperature range, ensuring measurement stability under different operating conditions and temperatures.

2.2 Technical advantages

-Ultra high measurement accuracy: The accuracy level reaches OIML C3 level, with nonlinear error of ≤± 0.02% FS, hysteresis error of ≤± 0.02% FS, and repeatability error of ≤± 0.01% FS, meeting the high-precision measurement needs of industry.

-Strong environmental adaptability: Adopting a fully sealed welding structure, the protection level reaches IP68, which can resist the adverse environmental effects such as dust, oil stains, moisture, and short-term immersion; Simultaneously possessing excellent anti vibration and anti impact performance, suitable for complex working conditions in industrial sites.

-High structural reliability: The elastomer is made of high-strength alloy steel material, strengthened by heat treatment process, with excellent mechanical properties and fatigue resistance, long service life, and an average time between failures (MTBF) of ≥ 200000 hours.

-Flexible compatibility: Supports direct integration with ABB PFCL series weighing instruments, AC 500 PLC, 800xA DCS and other systems, while also compatible with standard weighing control protocols, allowing for flexible integration into existing automation systems and reducing integration costs.

-Convenient installation and calibration: using standardized installation interfaces (such as threaded connections, flange connections), suitable for various installation scenarios; Support easy on-site calibration, zero point calibration and range calibration can be completed through weighing instruments, reducing the difficulty of debugging.

Key technical parameters

Model

PFCL201C 3BSE023409R20

ABB official standard model, uniquely identifying product specifications

Rated Capacity

20KN

The maximum load value for normal operation of the sensor

accuracy class

OIML Level C3

Complies with the accuracy standards of the International Organization for Legal Metrology

nonlinear error

≤±0.02%FS

The maximum deviation between the measured value and the ideal linear curve

Lag error

≤±0.02%FS

Output deviation under the same load during loading and unloading processes

repeatability error

≤±0.01%FS

Repeatedly measuring the output consistency of the same load multiple times

sensitivity

2.0mV/V ±0.02mV/V

Output voltage corresponding to rated load under unit excitation voltage

excitation voltage

DC 5V-15V (recommended 10V)

The power supply voltage required for the normal operation of the sensor

Output signal range

0-20mV (corresponding to 0-20KN, under 10V excitation)

Voltage output signal proportional to the load

Zero point output

≤±1%FS

Initial output deviation without load

Temperature compensation range

-20℃ ~ +80℃

Effective temperature compensation can be achieved within this temperature range

Working temperature range

-40℃ ~ +100℃

The temperature range within which the sensor can operate normally

overload capacity

150% FS (safe), 200% FS (extreme)

The maximum load that can be sustained in the short term, exceeding the limit is prone to damage

Protection level

IP68

Completely dust-proof, capable of long-term immersion in water (within 1m depth)

material

Elastic body: high-strength alloy steel; Shell: Stainless steel

Balancing mechanical strength and corrosion resistance

Installation method

Threaded connection (M20 × 1.5 or customized)

Standardized interface for easy on-site installation and fixation

Cable specifications

4-core shielded cable, wire diameter 0.3mm ², length 3m (customizable)

Shielding design reduces electromagnetic interference and ensures signal stability

Applicable scenarios

The ABB PFCL201C 20KN weighing sensor plays an important role in weight measurement and control scenarios in multiple industrial fields due to its high precision, high reliability, and strong environmental adaptability. Typical applications include:

1. Weighing of material tanks and silos: Installed on raw material tanks and finished product silos in the chemical, building materials, and food industries, it monitors the weight of materials in the tanks in real time, realizes level monitoring, inventory management, and automated control of replenishment, and avoids material overflow or shortage.

2. Belt scale and quantitative feeder: The matching belt scale system is used for conveying and measuring bulk materials in the metallurgical and coal industries, accurately measuring the belt conveying volume and providing data basis for production batching and cost accounting; Realize precise quantitative conveying of materials in a quantitative feeder.

3. Force measurement for reaction vessels and pressure vessels: Installed at the bottom or support points of reaction vessels and high-pressure vessels in the chemical and pharmaceutical industries, monitoring the weight of materials inside the equipment and changes in force values during the reaction process to ensure stable reaction conditions and ensure production safety.

4. Production ingredient control system: In the ingredient systems of industries such as food processing, rubber and plastic, and coatings, as the core weighing element, it accurately measures the amount of various raw materials added, realizes the automatic proportioning of multi-component raw materials, and improves product quality consistency.

5. Logistics and Warehousing Weighing: Tray scales, forklift scales, and truck scales used for industrial warehousing, as well as auxiliary weighing in logistics transportation, achieve fast and accurate measurement of cargo weight, and improve logistics turnover efficiency.

6. Mechanical equipment force measurement: In mechanical equipment such as machine tools, stamping equipment, and cranes, the force situation during the operation of the measuring equipment is measured to achieve overload protection, load monitoring, and extend the service life of the equipment.

Structure composition and working principle

5.1 Core Structure Composition

-Elastic body: made of high-strength alloy steel, it is the load-bearing core component of sensors. When subjected to load, it will undergo elastic deformation, providing installation foundation and deformation carrier for strain gauges.

-Strain gauge bridge: A Wheatstone bridge composed of four high-precision metal strain gauges, attached to the stress sensitive area of an elastic body. The resistance value of the strain gauges changes synchronously with the deformation of the elastic body, and is a key component for achieving force electricity conversion.

-Signal conditioning circuit: integrated inside the sensor (some models are external), responsible for amplifying, filtering, and temperature compensating the weak signals output by the bridge circuit, improving signal stability and anti-interference ability.

-Shell and sealing structure: Made of stainless steel shell, fully sealed design is achieved through laser welding or sealant to prevent external dust and liquids from entering the interior, protecting strain gauges and circuits from damage.

-Connection cable: 4-core shielded cable, used to connect the positive and negative poles of the excitation power supply and the signal output, respectively. The shielding layer can effectively resist electromagnetic interference and ensure the quality of signal transmission.

-Installation interface: A standardized threaded interface located at the bottom or top of the sensor, used to secure the sensor to the measuring device and ensure even force transmission.

5.2 Working principle

The weighing sensor is based on the metal strain effect to achieve weight measurement, and its core working principle is as follows:

1. Force deformation: When the weight of the measured object acts on the elastic body of the sensor, the elastic body undergoes small elastic deformation under the action of force, and the degree of deformation is proportional to the load received.

2. Resistance change: The strain gauge attached to the elastic body deforms synchronously with the elastic body. The metal wire of the strain gauge changes length and cross-sectional area due to deformation, causing a change in resistance value - the resistance increases when stretched and decreases when compressed.

3. Electrical signal conversion: The Wheatstone bridge composed of strain gauges is connected to a stable DC excitation power supply (5-15V). When the resistance value of the strain gauges changes, the balance of the bridge is broken, and a DC voltage signal proportional to the resistance change is output, which is the original measurement signal corresponding to the weight.

4. Signal optimization and output: After the original signal is amplified, filtered, and temperature compensated by an internal conditioning circuit, it is converted into a standardized mV level voltage signal, which is transmitted to a weighing instrument or control system through a connecting cable. Finally, after data processing, it is displayed as a weight value or used for control logic execution.