Description

ABB PFCL201C 3BSE023409R20

I. Basic Information

Model: PFCL201C-20kN, Part No. 3BSE023409R20. It is an ABB Pressductor® pillow-block load cell adopting proprietary magnetostrictive sensing technology. Designed for web tension measurement, silo leg weighing and belt scale load pickup, it serves as critical spare for force measurement in legacy DCS systems of thermal power, papermaking, metallurgy and chemical industries with 24/7 continuous on-site operation.

Product Positioning: A vertically loaded pillow-style force transducer installed under roller housings, silo support legs and belt scale frames. It converts mechanical load into proportional millivolt signals and forms closed-loop tension/weighing control systems when paired with ABB PFTL/PFTA transmitters and DCS analog I/O modules. The PFCL201C variant features standard plug-type cable outlet; peer variants CE (fixed hose-cable type) and CD (PTFE corrosion-resistant cable type) cannot be directly interchanged for installation.

Brand: ABB (ABB Measurement & Analytics, Switzerland) | Origin: Finland
Category: High-precision Pillow-block Load Cell | Rated Capacity: 20kN (≈2040kg)
Compatibility: ABB PFTL101A/PFTA amplifier transmitters, ABB S800 / AC800M DCS, full-range AI analog input modules of Siemens & GE PLCs
Mounting: Four-bolt fixed pillow-block mounting, embedded installation beneath roller bearing housings
Net Weight: approx. 1.15kg; Dimension: 168×92×35mm; Ingress Protection: IP67 (fully encapsulated stainless steel construction)
Cable Termination: Detachable round military-style connector for easy on-site maintenance and component replacement

II. Technical Specifications

(1) Electrical & Force Measurement Parameters

Sensitivity: 2.0mV/V ±0.02mV/V; Recommended excitation voltage: DC10V (operating range: 5~15VDC); Full-scale output: 0~20mV at 10V excitation
Accuracy Class: OIML C3 metrological grade; Non-linearity ≤±0.02% FS, Hysteresis ≤±0.02% FS, Repeatability ≤±0.01% FS
Zero Drift: No-load zero output ≤±1% FS with built-in full-range hardware temperature compensation
Overload Rating: 150%FS (30kN safe overload); 200%FS (40kN ultimate overload; permanent deformation and damage occurs beyond this limit)
Output Signal: Millivolt bridge signal requiring external transmitter conversion into standard 4~20mA industrial analog signal

(2) Environmental Specifications

Operating Temperature: -20℃～+80℃ for continuous service; Compensated temperature range: -20℃～+80℃; Storage & transit temperature: -40℃～+100℃
Humidity: 5%~95% RH non-condensing; resistant to dust, lubricating oil mist, papermaking steam and metallurgical particulate contamination
Vibration Compliance: Conforms to IEC60068-2-6 vibration standard, ensuring stable measurement under alternating vibration from paper machines and belt conveyors
Housing: Solid monobloc 1.4104 stainless steel with full epoxy encapsulation for corrosion protection

III. Key Features

Integrated Pillow-block Structure Eliminates Extra Load-bearing Supports

Mounted directly underneath idler bearing seats and silo support legs for uniform load distribution. Superior lateral force suppression prevents vertical load reading distortion induced by web offset deviation.

Onboard Full-span Temperature Compensation for Stable Zero Point across Temperature Variations

No repeated on-site zero calibration required during long-term operation under humid papermaking workshops or low-temperature outdoor silo conditions in cold climates.

Detachable Military Connector Enables Cable-spare Replacement without Field Wiring Damage

Defective sensors can be unplugged directly while retaining original field cables for drop-in retrofit on aging production lines.

Magnetostrictive Principle Delivers Superior Overload Resistance vs Conventional Strain-gauge Cells

Compared with standard strain-based weighing transducers, the core sensor withstands instantaneous shock loads from belt startup/shutdown and bulk material silo filling without internal component damage.

Uniform Mounting Hole Layout for 5/10/20/50kN Range Options

All PFCL201C ratings share identical overall dimension and installation footprint; no base modification needed for later capacity upgrade or downgrade.

IV. Working Principle

Mechanical Loading: Vertical compression from roller or silo weight deforms the internal magnetostrictive iron core of the pillow cell.
Magneto-electric Conversion: Core deformation alters coil magnetic flux, generating a millivolt output proportional to applied load via Wheatstone bridge circuit.
Signal Conditioning: Weak millivolt signal is fed into dedicated ABB transmitters and converted to standardized 4~20mA analog output.
DCS Data Acquisition: The 4~20mA signal is wired into PLC/DCS AI modules; actual tension/weight values are calculated and displayed on upper HMI to realize PID constant tension regulation and silo inventory interlock control.

V. Application Scenarios

(1) Papermaking & Plastic Film Production (Primary Application)

Tension pickup for press rolls, coater rollers and slitter machine spindles; closed-loop constant tension control to avoid paper breakage and film stretching deformation.

(2) Thermal Power & Coal Conveying Systems

Load measurement for belt loss-in-weight feeders and coal proportioning belt scales to realize automatic raw coal batching and feeding quantity control.

(3) Raw Material Storage for Chemical & Building Material Industries

Leg-mounted weighing for powder and lime silos to enable real-time inventory monitoring and automatic refill interlock logic.

(4) Metallurgical Wire & Strip Rolling Lines

Tension detection for steel wire and copper strip rolling mills supporting closed-loop speed governing based on rolling pressure feedback.