Editorial Technical Reference

Sensor Assembly

This page explains how Sensor Assembly 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 modular unit integrating one or more sensors and associated hardware for detecting, measuring, or monitoring physical properties within a counter system.

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Product Specifications

Technical details and manufacturing context for Sensor Assembly

Definition
The Sensor Assembly is a modular component designed for use in counter systems, where it detects, measures, or monitors specific physical properties such as object presence, distance, or environmental conditions. It converts these physical parameters into electrical signals that are processed by the system's control unit for counting or monitoring logic. The assembly integrates sensors, protective housings, connectors, and optional signal conditioning electronics into a single installable unit. Typical sensor types include optical, inductive, and capacitive, depending on the application. The sensor element transduces the physical property into an electrical signal, which may be conditioned (amplified, filtered) within the assembly before transmission via its connectors to the main controller. The assembly is available with a supply voltage of 24 V DC (±10%) with reverse polarity protection, and consumes no more than 50 mA without a sensor load. It provides a two-wire loop-powered output signal of 4–20 mA per IEC 60381-1. The measuring range is configurable via software from 0 to 100 °C, with an accuracy of ±0.5% of full scale (including linearity and hysteresis) per IEC 60770. The electronics operate in a temperature range of -40 to 85 °C (IEC 60068-2-1), while storage temperature is -40 to 105 °C (IEC 60068-2-2). The ingress protection rating is IP65 to IP67 per IEC 60529, requiring a mating connector for IP67. The housing is made of stainless steel 316L (ASTM A240) for wetted parts, with a process connection of G1/2 per DIN 3852. The electrical connection is a 4-pin M12×1 connector (A-coded) per IEC 61076-2-101. Weight ranges from 0.3 to 0.5 kg depending on options. Materials include plastic for the housing, stainless steel for mounting and sensing faces, copper for electrical contacts, and electronic components such as PCBs and ICs. All specifications are reference values; verify model-specific details with the manufacturer or supplier.
Working Principle
The assembly operates by using integrated sensors (e.g., optical, inductive, capacitive) to detect a target or condition. The sensor element transduces a physical property into an electrical signal. This signal may be conditioned (amplified, filtered) within the assembly before being transmitted via its connectors to the main counter system controller for interpretation and counting logic.
Common Materials
Plastic (Housing), Stainless Steel (Mounting/Sensing Face), Copper (Electrical Contacts), Electronic Components (PCB, ICs)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Supply Voltage24 ±10% V DCReverse polarity protected
Current Consumption≤50 mAWithout sensor load
Output Signal4–20 mATwo-wire loop poweredIEC 60381-1
Measuring Range0–100 °CConfigurable via software
Accuracy±0.5 % FSIncludes linearity and hysteresisIEC 60770
Operating Temperature-40–85 °CElectronics only; sensor probe may differIEC 60068-2-1
Storage Temperature-40–105 °CNon-condensing environmentIEC 60068-2-2
Ingress ProtectionIP65–IP67Mating connector required for IP67IEC 60529
Housing Material316LStainless steel, wetted partsASTM A240
Process ConnectionG1/2Other threads on requestDIN 3852
Weight0.3–0.5 kgDepends on options
Electrical ConnectionM12×14-pin, A-codedIEC 61076-2-101

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
  • Sensor Element Part
    The core transducer that detects the physical property (e.g., photoelectric receiver, inductive coil).
    Material: Varied (Semiconductor, Ferrite Core)
  • Protective Housing Part
    Encases and protects internal components from environmental factors like dust, moisture, and physical impact.
    Material: Plastic or Metal Alloy
  • Connector/Cable Gland Part
    Provides the electrical interface for power supply and signal output to the main system.
    Material: Plastic, Rubber
  • Mounting Bracket Part
    Allows for secure and adjustable installation of the assembly onto the counter system frame.
    Material: Stainless Steel or Aluminum
  • Signal Conditioning Stage Optional
    Amplifies and filters the raw signal inside the assembly before it goes out on the cable.

Applied To / Applications

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

Counter System
View system integration details
Output Encoder
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Joystick Control Unit
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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 to 5 m/s
temperature: -40°C to 85°C
slurry concentration: 0 to 30% solids by weight
Media Compatibility
✓ Water-based fluids ✓ Oil-based lubricants ✓ Gaseous media (air, nitrogen)
Unsuitable: Highly corrosive acids (e.g., concentrated sulfuric acid)
Sizing Data Required
  • Required measurement accuracy (±%)
  • Process connection type and size
  • Environmental protection rating (IP/NEMA)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Signal drift/inaccuracy
Cause: Thermal cycling causing expansion/contraction of sensing elements, leading to calibration loss or material fatigue
Electrical connection failure
Cause: Vibration-induced fretting corrosion at connector interfaces or moisture ingress causing short circuits/corrosion
Maintenance Indicators
  • Intermittent or erratic readings during normal operation
  • Unusual audible buzzing or humming from the sensor housing
Engineering Tips
  • Implement vibration isolation mounting and thermal shielding to minimize environmental stress on sensitive components
  • Establish regular calibration schedule with environmental compensation and use conformal coating on electrical connections

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
IEC 60068-2-6 - Vibration Testing CE Marking - EU Conformity for Electromagnetic Compatibility

Quoted from the published standard.

Manufacturing Precision
  • Housing Bore: +/-0.02mm
  • Mounting Surface Flatness: 0.1mm
Quality Inspection
  • Environmental Stress Screening (ESS)
  • Functional Performance Calibration Test

Manufacturers of Sensor Assembly

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Frequently Asked Questions

What is the supply voltage range for the Sensor Assembly?

The supply voltage is 24 V DC with a tolerance of ±10%, and it is reverse polarity protected. Always verify the exact requirements for your specific model.

What output signal does the Sensor Assembly provide?

It provides a two-wire loop-powered output signal of 4–20 mA, conforming to IEC 60381-1. This is a standard analog current loop signal.

What is the ingress protection rating?

The assembly has an ingress protection rating of IP65 to IP67 per IEC 60529. To achieve IP67, a mating connector is required.

What materials are used in the Sensor Assembly?

The housing is typically plastic, with stainless steel for mounting and sensing faces. Copper is used for electrical contacts, and electronic components include PCBs and ICs. The wetted parts are stainless steel 316L per ASTM A240.
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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