Editorial Technical Reference

Flow Meter / Load Cell

This page explains how Flow Meter / Load Cell is classified within Chemical 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 fluid flow rate and monitors chemical weight in dosing systems.

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Product Specifications

Technical details and manufacturing context for Flow Meter / Load Cell

Definition
This component is a dual-function device used within chemical dosing systems in the chemical manufacturing industry. It integrates a flow meter and a load cell into a single unit, serving two primary purposes: measuring and controlling the volumetric or mass flow rate of chemicals being dispensed, and monitoring the weight of chemical reservoirs or containers to ensure accurate dosing and inventory management. The flow meter portion operates on principles such as electromagnetic, Coriolis, or ultrasonic measurement to determine flow rate, while the load cell uses strain gauge technology to convert mechanical force (weight) into electrical signals for precise weight monitoring. The component is available in configurations with nominal diameters from 15 to 100 mm (per ISO 6708), flow rate ranges from 0.1 to 100 m³/h with a turndown ratio of 10:1, and accuracy of ±0.5% for flow measurement (per ISO 11631) and ±0.1% for weighing (per OIML R60). Operating pressure ranges from 1.0 to 1.6 MPa, with a note that Operating temperature for electronics is -40 to 85 °C, while process temperature is -20 to 120 °C, with higher temperatures requiring special seals. Ingress protection is IP65 to IP67 (per IEC 60529), suitable for washdown areas. Supply voltage is 24 V DC ±10%, with AC versions also available. Output signal is 4–20 mA (per IEC 60381-1), with HART protocol available. Wetted parts are made of 316L stainless steel (per ASTM A240), with optional Hastelloy. The component weighs between 5 and 20 kg, depending on size and configuration. Materials on file include stainless steel, aluminum alloy, and electronic components. This directory entry provides reference ranges; actual model-specific values and standards must be verified with the legal manufacturer or supplier.
Working Principle
The flow meter portion measures fluid flow rate using electromagnetic, Coriolis, or ultrasonic principles. Electromagnetic flow meters use Faraday's law to detect voltage induced by conductive fluid moving through a magnetic field. Coriolis meters measure mass flow by detecting phase shifts in vibrating tubes. Ultrasonic meters use transit-time or Doppler methods. The load cell uses strain gauges bonded to a deformable element; when weight is applied, the element deforms, changing the electrical resistance of the gauges, which is converted into a weight signal. Both functions provide electrical outputs for monitoring and control.
Common Materials
Stainless steel, Aluminum alloy, Electronic components
Technical Parameters
ParameterTypical rangeNotes & selection driver
Nominal Diameter15–100 mmSelect based on flow range and pipe size.ISO 6708
Flow Rate Range0.1–100 m³/hTurndown ratio 10:1.
Accuracy±0.5 %For flow measurement.ISO 11631
Weighing Accuracy±0.1 %For load cell function.OIML R60
Operating Pressure1.0–1.6 MPa
Operating Temperature-40–85 °CFor electronics; process temp may differ.
Process Temperature-20–120 °CHigher temps require special seals.
Ingress ProtectionIP65–IP67IP67 for washdown areas.IEC 60529
Supply Voltage24 ±10% V DCAlso available in AC versions.
Output Signal4–20 mAHART protocol available.IEC 60381-1
Material316LWetted parts; optional Hastelloy.ASTM A240
Weight5–20 kgDepends on size and configuration.

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
  • Flow Sensor Element Part
    Detects and measures fluid movement through the system
    Material: Stainless steel
  • Strain Gauge Assembly
    Converts mechanical deformation from weight into electrical signals
    Material: Alloy steel with electronic components
  • Signal Processor
    Processes and transmits measurement data to control systems
    Material: Electronic circuit board
  • Housing/Enclosure Part
    Protects internal components from environmental factors and chemicals
    Material: Stainless steel or corrosion-resistant alloy

Applied To / Applications

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

Chemical Dosing Unit
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Admixture Dosing System
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Admixture Dispenser
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Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar
flow rate: 0.1 to 100 L/min
temperature: -20°C to 80°C
slurry concentration: Up to 20% solids by weight
Media Compatibility
✓ Water-based solutions ✓ Corrosion inhibitors ✓ Polymer additives
Unsuitable: Abrasive slurries with high particulate content
Sizing Data Required
  • Maximum expected flow rate
  • Chemical density and viscosity
  • Required dosing accuracy

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Drift or Inaccuracy
Cause: Environmental factors like temperature fluctuations, vibration, or electrical interference affecting sensor calibration and signal integrity.
Mechanical Fatigue or Overload
Cause: Exceeding the rated capacity, cyclic loading, or improper installation leading to structural deformation or failure of sensing elements.
Maintenance Indicators
  • Erratic or inconsistent readings compared to known process conditions
  • Visible physical damage, corrosion, or loose connections on the device or mounting
Engineering Tips
  • Implement regular calibration and verification schedules aligned with process criticality and environmental conditions
  • Ensure proper installation with adequate support, isolation from vibration, and protection from environmental contaminants

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 5167: Measurement of fluid flow by means of pressure differential devices ANSI/ASME B40.100: Pressure Gauges and Gauge Attachments DIN EN 1434: Heat meters

Quoted from the published standard.

Manufacturing Precision
  • Linearity: +/-0.1% of full scale
  • Hysteresis: +/-0.05% of full scale
Quality Inspection
  • Pressure Leak Test
  • Calibration Verification against NIST-traceable standards

Manufacturers of Flow Meter / Load Cell

Manufacturer profiles associated with Flow Meter / Load Cell.

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Frequently Asked Questions

What are the typical applications for this component?

It is used in chemical dosing systems to measure and control the flow rate of chemicals being dispensed and to monitor the weight of chemical reservoirs or containers for accurate dosing and inventory management.

What flow measurement principles are available?

The flow meter portion can operate using electromagnetic, Coriolis, or ultrasonic measurement principles. The specific principle depends on the model and application requirements.

What is the accuracy of the flow and weighing functions?

The flow measurement accuracy is ±0.5% (per ISO 11631), and the weighing accuracy is ±0.1% (per OIML R60). These are reference values; verify the actual model's specifications with the manufacturer.

What are the operating pressure and temperature limits?

Operating pressure ranges from 1.0 to 1.6 MPa, with a note that Operating temperature for electronics is -40 to 85 °C, and process temperature is -20 to 120 °C, with higher temperatures requiring special seals.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

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

Preliminary Technical Classification
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