A New Domestic Alternative: Tianfen Instruments' Zirconia Oxygen Analyzers Empower Precise Oxygen Measurement in Industry

Release time: 2025-10-03


Are you still troubled by the high prices and long maintenance cycles of imported zirconia oxygen analyzers? Anhui Tianfen Instrument Co., Ltd.’s independently developed high-end zirconia oxygen analyzer, with its outstanding performance and reliable quality, has become the top choice for oxygen measurement equipment in million-unit power plants. As a leading domestic manufacturer, we not only deliver premium products that rival imported brands but also boast a comprehensive after-sales service system.

Analysis of Zirconia Core Technology

At the heart of the zirconia oxygen analyzer lies its pioneering solid electrolyte technology. By incorporating low-cost metal stabilizers such as calcium oxide and magnesium oxide, the originally non-conductive pure zirconia is transformed into an excellent oxygen-ion conductor under high-temperature conditions. Tianfen Instruments employs advanced nanomaterials and a unique additive process, adding anti-aging components to the electrode coating, which significantly enhances both the measurement accuracy and longevity of the probe.

The principle of concentration cells lies at the heart of our measurement technology. When reference gas and the gas to be measured are introduced on either side of the zirconia, oxygen ions migrate from the high-pressure side to the low-pressure side, generating a potential difference that correlates with the oxygen concentration. Our product utilizes PID Precision temperature control technology can, 700–750°C Maintain stable operation within the specified range to ensure the accuracy of measurement results.

Product Advantages and Technological Innovation

The Tianfen Instrument Zirconia Oxygen Analyzer features a direct-insertion probe design, enabling real-time reflection of combustion conditions without the need for a complex sampling system. The intelligent converter is equipped with a large-screen display. LCD Chinese character display, supported 0.01–25% Wide-range measurement with the following outstanding features:
Built-in temperature and oxygen level alarm functions provide timely warnings of abnormal conditions.
Supports one-click background potential correction and online standard gas calibration.
4-20mA Optoelectronic isolation output, perfectly compatible DCS System
Modular design allows for the direct replacement of most imported-brand equipment.

Particularly noteworthy is our anti-pollution technology. By applying a special coating to the electrode surface, we effectively prevent electrode degradation and zirconia tube cracking even at high temperatures, thereby resolving the common issue of measurement drift found in conventional equipment. These products are widely used in million-kilowatt-class units across industries such as power generation, metallurgy, and building materials, with performance metrics reaching internationally advanced levels.

Professional services create additional value

As one of the few domestic manufacturers that master the core technology of zirconia, Tianfen Instruments not only delivers high-quality products but has also established a comprehensive after-sales service system. Our technical team can provide:
Maintenance and Calibration Services for Imported Brand Oxygen Analyzers
On-site Installation Guidance and Parameter Optimization Plan
Regular calibration and maintenance support
Applied Technology Consulting and Operational Training

For various industrial applications, we offer a range of measurement system solutions, including constant-temperature extraction types and direct-insertion compensation models. All products undergo rigorous testing before leaving the factory to ensure that critical parameters such as thermocouple resistance and signal impedance meet industry standards. When you choose Tianfen Instruments, you’re not just getting a highly accurate oxygen measurement device—you’re also gaining a trusted long-term partner.

On the journey toward achieving import substitution in the industrial oxygen measurement field, Anhui Tianfen Instrument Co., Ltd. has consistently remained committed to driving innovation through technology. Our zirconia oxygen analyzers—boasting precise measurement, exceptional durability, and intelligent convenience—are helping an increasing number of enterprises enhance their energy efficiency management practices. Whether it’s for new equipment procurement or upgrading existing systems, Tianfen Instrument is here to provide you with the optimal solution.

Recommended product

Trace oxygen analyzer, oxygen analyzer, zirconia oxygen analyzer, ppm oxygen content analyzer


Zirconia-based trace oxygen analyzers (typically with a measurement range of 0.01 ppm to 5,000 ppm O₂) offer key advantages: high-temperature stability, ppm‑level accuracy, rapid response, and continuous operation. They are widely used for trace oxygen monitoring, inert‑atmosphere protection, and quality control of high-purity gases. **Metallurgy / Steel Industry (Heat Treatment / Protective Atmospheres):** Applications include nitriding furnaces, annealing furnaces, heating furnaces, converter flue gases, and glove boxes. Functions: In controlled-atmosphere furnaces (ppm‑level), precise oxygen control (10–1000 ppm) prevents oxidation and decarburization of workpieces, enhancing hardness and wear resistance. In vacuum/glove box environments, maintaining O₂ levels below 50 ppm protects lithium‑battery materials, rare metals, and precision components. **Semiconductors / Electronics (High‑Purity Gases / Cleanroom Environments):** Applications encompass diffusion/oxidation furnaces, wafer annealing, LED epitaxy, vacuum chambers, glove boxes, and high‑purity nitrogen, argon, and hydrogen pipelines. Functions: Ultra‑high‑purity gases (0.01–1 ppm) ensure process yield by preventing oxidation defects in silicon wafers, chips, and LED dies. Inert atmospheres (10–100 ppm) maintain an oxygen‑free environment, safeguarding sensitive materials and devices. **Air Separation / Industrial Gases (High‑Purity Gas Quality Control):** Applications include air‑separation units (N₂/O₂/Ar), high‑purity gas filling, pipeline transport, and cylinder inspection. Functions: Monitoring trace oxygen levels (0.1–10 ppm) in N₂/Ar streams ensures compliance with purity standards (e.g., high‑purity nitrogen ≥99.999%). **Food / Pharmaceutical Industries (Preservation / Aseptic Conditions):** Applications cover food packaging (nitrogen flushing or modified‑atmosphere packaging), pharmaceutical lyophilization and packaging, fermentation tanks, and aseptic isolators. Functions: Residual oxygen levels in packaging (0.1%–5%) inhibit oxidation and mold growth, extending shelf life for meat products, fruits, vegetables, and pharmaceuticals. **Laboratories / Research (Precision Environments):** Applications include materials R&D, battery laboratories, catalytic reaction studies, inert‑gas‑protected experiments, and glove boxes. Functions: Precise control of oxygen partial pressures (from ppm to % levels) enables simulation of oxygen‑free or low‑oxygen conditions, ensuring experimental reproducibility and data reliability. **Technical Specifications:** - Measurement range: 0.1 ppm–20,000 ppm; 0–20.6%; 0–100% - Output signal: 4–20 mA; load resistance ≤500 Ω - Communication interface: RS‑485 - Resolution: 0.01 ppm - Repeatability: ±0.5% of full scale - Basic error: ≤±1% (full scale) - Stability: ≤±1% (after 4 hours of continuous calibration) - Response time: Within 5 seconds when a standard gas is introduced to the sensor, reaching 90% of the final reading - Sample gas flow rate: Adjusted via flow meter, typically maintained at 0.1–0.2 NL/min - Ambient temperature: 0°C–45°C - Power supply and power consumption: 220 VAC ±10%, maximum power consumption 150 W - Sample gas temperature: 0–50°C - Sampling method: Either suction‑type or direct‑injection - Operating pressure (without pump): 0.05 MPa < inlet gauge pressure < 0.35 MPa, with stable atmosphere - Operating pressure (with pump): Micro‑positive, micro‑negative, or atmospheric pressure - Background gases: He, Ar, CO₂, N₂, and other inert gases mixed as needed - Gas‑line interface: 1/8-inch φ6 ferrule or quick‑connect fitting
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