Editorial Technical Reference

Oxygen Probe / Analyzer

This page explains how Oxygen Probe / Analyzer 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 sensor device that measures oxygen concentration in gas mixtures within industrial atmosphere systems.

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

Product Specifications

Technical details and manufacturing context for Oxygen Probe / Analyzer

Definition
An oxygen probe/analyzer is a critical component of atmosphere systems used to monitor and control oxygen levels in controlled environments such as industrial furnaces, heat treatment processes, and manufacturing atmospheres. It ensures precise oxygen concentration for process optimization, safety, and quality control. The device typically operates using electrochemical, paramagnetic, or zirconia-based sensing technologies to detect oxygen partial pressure or concentration through chemical reactions or physical property changes, converting measurements into electrical signals for display and control systems. Common materials include zirconia ceramic, platinum electrodes, and stainless steel housing. Key parameters include a measurement range of 0–25% O2, accuracy of ±0.1% O2, response time of ≤5 seconds, operating temperature of -10–50°C (sensor probe can withstand higher), operating pressure of 0.1–0.5 MPa, power supply of 24 V DC ±10%, output signal of 4–20 mA, ingress protection of IP54–IP65 per IEC 60529, probe material of 316L stainless steel per ASTM A276, and weight of 1.5–3.0 kg depending on probe length. These values are typical for flue gas and inert gas monitoring and should be verified for the specific model and application. The analyzer enclosure is rated IP54–IP65, and the probe is made of 316L stainless steel for corrosion resistance. Always confirm model-specific specifications and standards with the legal manufacturer or supplier before procurement or installation.
Working Principle
The oxygen probe/analyzer measures oxygen concentration using one of several sensing technologies. Zirconia-based sensors operate on the principle of oxygen ion conduction at high temperatures, generating a voltage proportional to the oxygen partial pressure difference. Electrochemical sensors use a chemical reaction that produces a current or voltage related to oxygen concentration. Paramagnetic sensors exploit the paramagnetic property of oxygen to measure its concentration. The sensor converts the measured oxygen level into an electrical signal, typically a 4–20 mA analog output, which is transmitted to a control system for monitoring and process adjustment.
Common Materials
Zirconia ceramic, Platinum electrodes, Stainless steel housing
Technical Parameters
ParameterTypical rangeNotes & selection driver
Measurement Range0–25 % O2Typical for flue gas and inert gas monitoring.
Accuracy±0.1 % O2At constant temperature and pressure.
Response Time≤5 sFor 90% of step change.
Operating Temperature-10–50 °CSensor probe can withstand higher.
Operating Pressure0.1–0.5 MPaFor sample gas inlet.
Power Supply24 ±10% V DCStandard industrial supply.
Output Signal4–20 mAAnalog output, isolated.
Ingress ProtectionIP54–IP65For analyzer enclosure.IEC 60529
Probe Material316LStainless steel for corrosion resistance.ASTM A276
Weight1.5–3.0 kgDepending on probe 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
    Detects oxygen concentration through electrochemical or physical reactions
    Material: Zirconia ceramic with platinum electrodes
  • Heater Assembly
    Maintains optimal operating temperature for sensing element
    Material: Ceramic heater with nickel-chromium alloy
  • Protective Housing
    Shields internal components from process environment and provides mounting
    Material: Stainless steel
  • Signal Connector
    Transmits measurement signals to control system
    Material: High-temperature ceramic with metal contacts

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Oxygen Probe / Analyzer.

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: 0.5 to 10 bar absolute (standard), high-pressure models up to 40 bar available
flow rate: 0.1 to 5 m/s recommended for optimal response, minimum 0.05 m/s to prevent stagnation
temperature: -20°C to 80°C (typical), with high-temp variants up to 400°C for specific models
Media Compatibility
✓ Combustion flue gases (O₂ measurement for efficiency optimization) ✓ Inert gas blanketing systems (nitrogen, argon atmospheres) ✓ Biogas/anaerobic digester gas monitoring
Unsuitable: Chlorine or fluorine-containing atmospheres (causes rapid sensor degradation and failure)
Sizing Data Required
  • Required measurement range (e.g., 0-25% O₂ vs trace 0-1000 ppm)
  • Process gas temperature and pressure conditions
  • Required response time (T90) and accuracy specification (±0.1% vs ±1% full scale)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Sensor poisoning
Cause: Contamination from process gases containing sulfur compounds, siloxanes, or other reactive species that chemically degrade the sensing element, typically a zirconia or electrochemical cell, leading to inaccurate readings or complete failure.
Thermal stress cracking
Cause: Rapid temperature cycling or exposure to temperatures beyond the probe's specified operating range, causing mechanical failure of the ceramic or metal housing, often due to improper installation, lack of thermal insulation, or process upsets.
Maintenance Indicators
  • Drift or instability in oxygen readings beyond calibration tolerance, indicated by erratic output or failure to hold calibration during routine checks.
  • Visible physical damage such as cracks in the probe sheath, discoloration, or excessive soot buildup on the sensing tip, often accompanied by audible alarms from the analyzer unit indicating out-of-range signals.
Engineering Tips
  • Implement a proactive calibration and validation schedule using certified reference gases, ensuring the probe is exposed only to clean, dry sample gases through proper filtration and conditioning systems to prevent contamination.
  • Optimize installation with adequate thermal protection, such as using thermal wells or heat shields, and avoid direct exposure to high-velocity process streams to minimize thermal and mechanical stress, extending the probe's operational life.

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 17025:2017 - General requirements for the competence of testing and calibration laboratories ASTM D7675-15 - Standard Practice for Sampling and Analysis of Oxygen in Gaseous Fuels Using an Electrochemical Sensor CE - Conformité Européenne (specifically for electrical safety and electromagnetic compatibility under relevant EU directives)

Quoted from the published standard.

Manufacturing Precision
  • Measurement Accuracy: +/- 0.1% O₂ concentration
  • Response Time: T90 ≤ 5 seconds
Quality Inspection
  • Calibration Verification Test against certified reference gases
  • Environmental Stress Testing (temperature, humidity, vibration)

Manufacturers of Oxygen Probe / Analyzer

4 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Wenzhou Yili Automobile Technology Co., Ltd.
Wenzhou, Zhejiang, CN
200 staff
Listed on the company's own website · profile compiled by CNFX from public sources
Hunan Rika Electronic Tech Co., Ltd.
Hunan, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Shandong Renke Control Technology Co., Ltd.
Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Shanghai BOQU Instrument Co., Ltd.
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
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Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
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Frequently Asked Questions

What is the typical measurement range of this oxygen probe/analyzer?

The typical measurement range is 0–25% O2, suitable for flue gas and inert gas monitoring. However, the exact range may vary by model, so confirm with the manufacturer.

What output signal does the analyzer provide?

The analyzer provides an isolated 4–20 mA analog output, which is standard for industrial control systems. Verify the output type and isolation for your specific model.

What is the operating temperature range?

The operating temperature for the analyzer is -10–50°C, but the sensor probe can withstand higher temperatures. Check the probe's maximum temperature rating for your application.

What standards apply to the ingress protection and probe material?

The ingress protection is rated IP54–IP65 per IEC 60529, and the probe material is 316L stainless steel per ASTM A276. These are reference standards; verify compliance with the supplier.

Data Basis

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

Preliminary Technical Classification
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