Editorial Technical Reference

Detection Probe

This page explains how Detection Probe is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A sensing element within a contamination sensor that directly interacts with the environment to detect and measure contaminants.

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Product Specifications

Technical details and manufacturing context for Detection Probe

Definition
The detection probe is the critical sensing component of a contamination sensor, responsible for physically or chemically interacting with the target environment to identify and quantify the presence of foreign substances, particles, or biological agents. It converts the detected contamination signal into a measurable electrical or optical output for the sensor's processing unit. The probe is typically housed in stainless steel (316L) with a silicon sensing element and gold electrodes, ensuring durability and reliable signal transduction. It is designed for use in computer, electronic, and optical product manufacturing environments where monitoring of contaminants is essential. The probe operates across a measurement range of 0–1000 ppm (typical for volatile organic compounds), with a response time of less than 10 seconds to reach 90% of the final value. Accuracy is ±2% of full scale. It functions within an operating temperature range of -20 to 85 °C and a pressure range of 0.1–0.5 MPa, with degraded response below 0.1 MPa. Humidity tolerance is 0–95% RH (non-condensing). The probe offers ingress protection ratings from IP54 to IP65 (per IEC 60529), suitable for washdown applications. It requires a supply voltage of 9–36 V DC (reverse polarity protected) and provides a 4–20 mA two-wire loop output. Weight varies from 0.5 to 1.5 kg depending on cable length. All specifications are reference ranges; verify model-specific values and standards with the legal manufacturer or supplier before procurement.
Working Principle
The probe operates by exposing its active sensing surface or element to the medium. Upon contact with a contaminant, it undergoes a change in its physical properties (e.g., electrical conductivity, capacitance, optical reflectance) or triggers a chemical reaction. This change is transduced into an electrical signal proportional to the contamination level, which is then relayed to the sensor's main unit for analysis and output. The sensing element, typically silicon, is coated with gold electrodes to facilitate signal pickup. The housing, made of stainless steel, protects the internal components while allowing exposure to the environment. The probe's response time and accuracy depend on the nature of the contaminant and the environmental conditions. Regular calibration and maintenance are required to ensure consistent performance. The probe is designed for continuous operation within specified limits; exceeding these limits may lead to degraded performance or failure.
Common Materials
Stainless Steel (housing), Silicon (sensing element), Gold (electrodes)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Measurement Range0–1000 ppmTypical for volatile organic compounds
Response Time<10 sTime to reach 90% of final value
Accuracy±2% FSFull scale
Operating Temperature-20–85 °CExtended range available
Operating Pressure0.1–0.5 MPaBelow 0.1 MPa response degrades
Humidity Range0–95 %RHNon-condensing
Ingress ProtectionIP54–IP65IP65 for washdownIEC 60529
Supply Voltage9–36 V DCReverse polarity protected
Output Signal4–20 mATwo-wire loop
Material316LStainless steel wetted partsASTM A240
Weight0.5–1.5 kgDepends on cable length

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
  • Sensing Element Part
    The core material or structure that physically or chemically reacts to the presence of contaminants.
    Material: Silicon, Polymer, or Metal Oxide
  • Probe Housing Part
    Protects the internal sensing element from environmental damage and provides structural integrity.
    Material: Stainless Steel or PTFE
  • Signal Electrodes/Connectors Part
    Transmit the electrical signal generated by the sensing element to the sensor's processing circuitry.
    Material: Gold-plated Copper or Platinum

Applied To / Applications

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

Contamination Sensor
View system integration details

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: -20°C to 80°C
slurry concentration: 0 to 30% solids by weight
Media Compatibility
✓ Water-based fluids ✓ Oil emulsions ✓ Chemical process streams
Unsuitable: Highly abrasive slurries with >30% solids
Sizing Data Required
  • Contaminant particle size range
  • Required detection sensitivity (ppm)
  • Process pipe diameter

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Signal drift or loss
Cause: Contamination buildup on sensing surface from process media (oil, grease, particulates) or environmental factors (moisture, dust), leading to inaccurate readings or complete signal failure.
Mechanical damage or misalignment
Cause: Physical impact from equipment, vibration-induced loosening of mounting hardware, or thermal expansion/contraction causing probe displacement, resulting in false triggers or non-detection.
Maintenance Indicators
  • Inconsistent or erratic readings on monitoring equipment (e.g., fluctuating output signals when process is stable)
  • Visible physical damage (cracks, dents, bent housing) or audible abnormal sounds (clicking, buzzing) during operation
Engineering Tips
  • Implement regular cleaning schedules using manufacturer-approved solvents and methods to prevent contamination buildup, ensuring proper isolation from process media where possible.
  • Use vibration-resistant mounting hardware with lock washers or thread-locking compounds, and perform periodic alignment checks with laser tools or calibration fixtures to maintain positional accuracy.

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
ANSI/ASQ Z1.4-2008 - Sampling procedures for inspection by attributes DIN EN ISO 10360-2:2010 - Acceptance and reverification tests for coordinate measuring machines (CMM)

Quoted from the published standard.

Manufacturing Precision
  • Probe tip diameter: +/-0.005 mm
  • Surface finish: Ra 0.4 μm maximum
Quality Inspection
  • Dimensional accuracy verification using coordinate measuring machine (CMM)
  • Electrical continuity and insulation resistance testing

Manufacturers of Detection Probe

Manufacturer profiles associated with Detection Probe.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 16 September 2026

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Frequently Asked Questions

What is the measurement range of the detection probe?

The detection probe has a measurement range of 0–1000 ppm, typical for volatile organic compounds. This is a reference range; the actual range may vary by model and application. Always confirm with the manufacturer.

What is the response time of the probe?

The response time is less than 10 seconds to reach 90% of the final value. This indicates how quickly the probe reacts to changes in contaminant concentration. Verify the specific response time for your model.

What are the operating temperature and pressure limits?

The probe operates in temperatures from -20 to 85 °C and pressures from 0.1 to 0.5 MPa. Below 0.1 MPa, response degrades. Ensure your application stays within these ranges.

What ingress protection ratings are available?

The probe offers ingress protection from IP54 to IP65 (per IEC 60529). IP65 is suitable for washdown applications. The specific rating depends on the model; check with the supplier.

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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