Editorial Technical Reference

Precision Weigh Scale Module

This page explains how Precision Weigh Scale Module is classified within Food Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A high-accuracy weighing component for automated ingredient measurement in food processing systems.

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

Product Specifications

Technical details and manufacturing context for Precision Weigh Scale Module

Definition
The Precision Weigh Scale Module is a component designed for integration into automated food ingredient blending and mixing systems. Its primary function is to accurately measure and dispense specific quantities of dry or liquid ingredients according to recipe formulations. By providing reliable weight data for process control, it helps ensure consistent product quality in food manufacturing environments.

The module employs strain gauge load cells or electromagnetic force restoration sensors to convert applied weight into electrical signals. These signals are processed by an internal amplifier and analog-to-digital converter, then transmitted to the system's control unit for real-time monitoring and adjustment of ingredient flow. The module is constructed with stainless steel contact surfaces, an aluminum alloy housing, and load cells made of ceramic or hardened steel, offering corrosion resistance suitable for food contact.

Key parameters, which must be verified for the specific model and application, include a rated capacity of 5–50 kg (OIML R60), accuracy class C3 for legal-for-trade applications, and a maximum number of load cell verification intervals of 3000. The minimum load cell verification interval is 0.001 kg, and the combined error is ±0.02% of rated output. Rated output is 2.0 ±0.2 mV/V, with an excitation voltage of 5–12 V DC (recommended 10 V). Input and output resistances are 380 ±20 Ω and 350 ±5 Ω, respectively. Insulation resistance is ≥5000 MΩ at 50 V DC (IEC 60255-5). Operating and compensated temperature ranges are -10–40 °C, with temperature effects on zero and span of ±0.02% of rated output/°C. The ingress protection rating is IP68 (IEC 60529), and the material is stainless steel 304 (ASTM A240). Safe overload is 150% of rated capacity, ultimate overload is 300%, cable length is 3–12 m, and weight is 1.5–3.5 kg.

These values are directory references and must be confirmed with the legal manufacturer or supplier for the actual model. Standards listed are procurement references, not certifications of compliance.
Working Principle
The module uses strain gauge load cells or electromagnetic force restoration sensors. When weight is applied, the sensor deforms or changes electromagnetic force, altering electrical resistance or current. This change is converted into a voltage signal, which is amplified and digitized by an internal analog-to-digital converter. The digital signal is then transmitted to the system's control unit, which uses it to monitor and adjust ingredient flow in real time, ensuring accurate dispensing according to recipe formulations.
Common Materials
Stainless steel (contact surfaces), Aluminum alloy (housing), Ceramic or hardened steel (load cell)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Rated Capacity5–50 kgSelect based on max ingredient batch weightOIML R60
Accuracy ClassC3C3 for legal-for-trade applicationsOIML R60
Maximum Number of Load Cell Verification Intervals3000 nDefines resolution capabilityOIML R60
Minimum Load Cell Verification Interval0.001 kgSmallest readable incrementOIML R60
Combined Error±0.02 % of rated outputIncludes nonlinearity and hysteresisOIML R60
Rated Output2.0 ±0.2 mV/VSignal at full capacity
Excitation Voltage5–12 V DCRecommended 10 V for best performance
Input Resistance380 ±20 ΩMatch with indicator
Output Resistance350 ±5 ΩMatch with indicator
Insulation Resistance≥5000 At 50 V DCIEC 60255-5
Operating Temperature Range-10–40 °CFor legal metrology; wider range availableOIML R60
Compensated Temperature Range-10–40 °CTemperature effect on zero and span within this rangeOIML R60
Temperature Effect on Zero±0.02 % of rated output/°CMax change per °COIML R60
Temperature Effect on Span±0.02 % of rated output/°CMax change per °COIML R60
Ingress Protection RatingIP68For washdown environmentsIEC 60529
MaterialStainless steel 304Corrosion resistant for food contactASTM A240
Safe Overload150 % of rated capacityNo permanent damage up to this loadOIML R60
Ultimate Overload300 % of rated capacityMechanical failure thresholdOIML R60
Cable Length3–12 mCustom lengths available
Weight1.5–3.5 kgDepends on capacity and material

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
  • Load Cell
    Converts mechanical force (weight) into electrical signals
    Material: Stainless steel or aluminum with strain gauges
  • Weighing Platform
    Surface where ingredients are placed for measurement
    Material: Food-grade stainless steel
  • Signal Amplifier
    Amplifies weak electrical signals from load cell for processing
    Material: Electronic components on PCB
  • Calibration Weight Part
    Reference weight for periodic accuracy verification
    Material: Stainless steel
  • Analog-to-Digital Converter
    Digitises the amplified bridge signal for the control unit.

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric only (non-pressurized system)
other spec: Max load capacity: 50 kg, Accuracy: ±0.1g, Slurry concentration: ≤40% solids by weight
temperature: 0°C to 50°C (operating), -20°C to 70°C (storage)
Media Compatibility
✓ Dry food powders (flour, spices) ✓ Liquid ingredients (oils, syrups) ✓ Granular materials (sugar, grains)
Unsuitable: High-vibration environments (near heavy machinery)
Sizing Data Required
  • Required measurement accuracy (±g)
  • Maximum batch weight (kg)
  • Ingredient flow characteristics (free-flowing/viscous)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Load cell drift
Cause: Mechanical overload causing permanent deformation, temperature fluctuations affecting strain gauge calibration, or moisture ingress leading to corrosion of internal components.
Display/interface malfunction
Cause: Power surges damaging electronic circuits, dust/debris accumulation on touchscreens or buttons causing false readings, or firmware corruption from improper shutdowns.
Maintenance Indicators
  • Inconsistent or fluctuating weight readings despite stable loads
  • Unusual error codes or display artifacts (e.g., flickering, missing segments)
Engineering Tips
  • Implement regular calibration schedules using certified weights, and maintain environmental controls (stable temperature/humidity) to minimize thermal expansion effects on components.
  • Install surge protection on power inputs, use clean/dry compressed air for dust removal without direct contact on sensitive surfaces, and ensure proper shutdown procedures to prevent data corruption.

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
OIML R76-1 - Non-automatic weighing instruments IEC 61010-1 - Safety requirements for electrical equipment for measurement, control, and laboratory use

Quoted from the published standard.

Manufacturing Precision
  • Load cell linearity: +/-0.02% of full scale
  • Display resolution: +/-1 digit
Quality Inspection
  • Calibration verification against certified reference weights
  • Environmental testing (temperature, humidity, vibration)

Manufacturers of Precision Weigh Scale Module

Manufacturer profiles associated with Precision Weigh Scale Module.

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Frequently Asked Questions

What is the rated capacity of this module?

The rated capacity is listed as 5–50 kg, but you must confirm the exact value for your specific model and application with the manufacturer or supplier.

Is this module suitable for legal-for-trade applications?

The accuracy class is listed as C3 per OIML R60, which is commonly used for legal-for-trade. However, compliance must be verified with the manufacturer and relevant local regulations.

What is the operating temperature range?

The operating and compensated temperature range is -10 to 40 °C. Ensure your environment stays within this range for accurate performance.

Can this module be used in washdown environments?

The ingress protection rating is IP68 per IEC 60529, indicating protection against dust and prolonged immersion. Confirm suitability for your specific washdown procedures with the manufacturer.

Data Basis

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

Preliminary Technical Classification
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