Editorial Technical Reference

Load Cell / Flow Meter

This page explains how Load Cell / Flow Meter is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A dual-function component that measures both weight and flow rate of materials in dosing systems.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Load Cell / Flow Meter

Definition
This component is a critical measurement device used in dosing systems, combining load cell functionality for weight measurement with flow meter capability for volumetric or mass flow rate measurement. It ensures precise control of material dispensing by providing real-time feedback on both the quantity and flow characteristics of substances being dosed. The load cell portion typically uses strain gauge technology to convert mechanical force (weight) into electrical signals, while the flow meter portion employs various methods (such as Coriolis, electromagnetic, or ultrasonic) to measure the rate of material flow. Both measurements are integrated to provide comprehensive dosing control. The component is available in configurations with rated capacities from 50 to 5000 kg, accuracy classes C3 to C6 per OIML R60, nonlinearity of ±0.02% to ±0.05% FS, repeatability of ±0.01% to ±0.03% FS, creep (30 min) of ±0.02% to ±0.05% FS, excitation voltage of 5 to 12 V DC, output sensitivity of 2.0 to 3.0 mV/V, insulation resistance of ≥5000 MΩ at 50 V DC, operating temperature range of -10 to 40 °C, temperature effect on zero of ±0.02% to ±0.05% FS/10°C, ingress protection ratings from IP65 to IP68 per IEC 60529, and material options including 17-4PH stainless steel per ASTM A693. The flow rate range is 0.1 to 100 m³/h with flow accuracy of ±0.5% to ±1.0% of reading. Materials on file include stainless steel, aluminum alloy, strain gauge elements, and electronic components. Selection should be based on maximum expected load, required accuracy, environmental conditions, and pipe size. Verification with the manufacturer is essential to confirm model-specific values and compliance with applicable standards.
Working Principle
The load cell portion uses strain gauge technology to convert mechanical force (weight) into electrical signals. The flow meter portion employs methods such as Coriolis, electromagnetic, or ultrasonic to measure the rate of material flow. Both measurements are integrated to provide comprehensive dosing control.
Common Materials
Stainless steel, Aluminum alloy, Strain gauge elements, Electronic components
Technical Parameters
ParameterTypical rangeNotes & selection driver
Rated Capacity50–5000 kgSelect based on max expected load
Accuracy ClassC3–C6C3 for legal metrology, C6 for high precisionOIML R60
Nonlinearity±0.02–±0.05 %FSLower is better for accuracy
Repeatability±0.01–±0.03 %FSCritical for dosing consistency
Creep (30 min)±0.02–±0.05 %FSAffects long-term stability
Excitation Voltage5–12 V DCTypical 10 V DC
Output Sensitivity2.0–3.0 mV/VHigher output improves signal-to-noise
Insulation Resistance≥5000 At 50 V DC
Operating Temperature-10–40 °CCompensated range; wider possible
Temperature Effect on Zero±0.02–±0.05 %FS/10°CLower drift improves accuracy
Ingress ProtectionIP65–IP68IP68 for washdown environmentsIEC 60529
Material17-4PHStainless steel for corrosion resistanceASTM A693
Flow Rate Range0.1–100 m³/hMatch to pipe size and process
Flow Accuracy±0.5–±1.0 %Of reading; better for dosing

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Strain Gauge Assembly
    Converts mechanical deformation into electrical resistance changes for weight measurement
    Material: Stainless steel with bonded strain gauges
  • Flow Measurement Element
    Detects and measures the rate of material flow through the system
    Material: Stainless steel or specialized alloys
  • Signal Processing Unit
    Processes raw sensor data and converts it to standardized output signals
    Material: Electronic components on PCB
  • Housing/Enclosure Part
    Protects internal components from environmental factors and mechanical damage
    Material: Stainless steel or aluminum alloy

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Load Cell / Flow Meter.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0-10 bar
flow rate: 0.1-100 L/min
temperature: -20°C to 80°C
Media Compatibility
✓ Water-based liquids ✓ Food-grade slurries ✓ Chemical solutions with pH 5-9
Unsuitable: Highly abrasive slurries with >40% solids or corrosive media outside pH 4-10
Sizing Data Required
  • Maximum expected flow rate (L/min)
  • Material density (kg/m³)
  • Required measurement accuracy (±% of full scale)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Zero drift or calibration shift
Cause: Thermal expansion/contraction of internal components, mechanical stress from mounting, or aging of strain gauges/wiring leading to inaccurate baseline readings over time.
Signal loss or erratic output
Cause: Moisture ingress corroding electrical connections, damaged cables from vibration/flexing, or electromagnetic interference from nearby equipment disrupting the low-voltage signal.
Maintenance Indicators
  • Unexplained fluctuations or zero readings on the display/controller despite stable process conditions
  • Visible physical damage such as cracked housings, bent load beams, or corroded electrical enclosures/connectors
Engineering Tips
  • Implement regular calibration checks using certified weights or reference standards, and ensure proper mounting with aligned load paths to minimize side loads and torsion.
  • Protect electrical components with sealed enclosures (IP67+), use shielded cables with strain relief, and maintain clean, dry environments to prevent moisture-related failures.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 376:2011 - Calibration of force-proving instruments used for the verification of uniaxial testing machines ANSI/ASME B40.100-2018 - Pressure Gauges and Gauge Attachments DIN EN 837-1:1996 - Pressure gauges - Part 1: Bourdon tube pressure gauges; dimensions, metrology, requirements and testing

Quoted from the published standard.

Manufacturing Precision
  • Non-linearity: ±0.03% of full scale output
  • Hysteresis: ±0.02% of full scale output
Quality Inspection
  • Calibration verification against traceable standards
  • Environmental testing (temperature, humidity, vibration)

Manufacturers of Load Cell / Flow Meter

Manufacturer profiles associated with Load Cell / Flow Meter.

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Frequently Asked Questions

What is the typical rated capacity range for this component?

The rated capacity range is 50 to 5000 kg, but the actual capacity must be selected based on the maximum expected load in your specific application. Always verify with the manufacturer.

What accuracy classes are available?

Accuracy classes C3 to C6 are listed, per OIML R60. C3 is for legal metrology, while C6 is for high precision. Confirm the required class with your application needs and the manufacturer.

What ingress protection ratings are offered?

Ingress protection ratings from IP65 to IP68 are listed, per IEC 60529. IP68 is suitable for washdown environments. Verify the actual rating for your model.

How should I verify the flow accuracy?

Flow accuracy is listed as ±0.5% to ±1.0% of reading. This is a reference range; you must confirm the specific accuracy for your model and process conditions with the manufacturer.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
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