The portable trace oxygen analyzer, thanks to its flexibility, is widely used in various scenarios requiring on-site or mobile detection of trace oxygen concentrations.

1. Industrial Gas Production and Purity Testing ：
   • Air separation for nitrogen and argon production : Monitor the oxygen content impurities in high-purity inert gases such as nitrogen and argon to ensure gas purity.
   • Electronic Specialty Gases In semiconductor manufacturing, detecting trace amounts of oxygen in specialty gases—such as high-purity helium, hydrogen, and hydrocarbons—is crucial to prevent oxidation during the chip production process.
   • Chemical Process Monitoring the oxygen content of protective gases or feed gases in various chemical reactors.
2. Metal Processing and High-Temperature Processes ：
   • Magnetic material sintering 、 Metal Heat Treatment : Monitor the oxygen content of the protective atmosphere inside the furnace (such as ammonia decomposition gas) to prevent product oxidation and ensure product quality.
   • Brazing, Bright Annealing : Ensure an anaerobic or hypoxic environment to prevent oxidation and discoloration of metal surfaces.
3. Safety Protection and Leak Monitoring ：
   • At Chemical equipment maintenance and pipeline replacement During the process, detect flammable gases within the equipment (such as H ₂ 、 CH ₄ ) Control the oxygen content in the environment to keep it within safe limits, preventing explosion accidents.
   • Detection Sealing performance of cryogenic equipment (such as liquid nitrogen and liquid argon storage tanks) An increase in trace oxygen levels may indicate a leak in the insulation layer or vacuum failure.
4. Emerging and Professional Fields ：
   • Food packaging : Detect the oxygen content of inert gases (such as nitrogen) filled inside the packaging to ensure optimal freshness preservation.
   • Medical gases : Analyze the concentration of medical oxygen or mixed gases.
   • Scientific research experiment : Providing a rapid oxygen concentration detection method for experiments requiring precise atmosphere control.
   • Key Features ：
   • ·   It uses imported fuel cell-based trace oxygen detection elements, which feature long lifespan and rapid response speed.
   • ·   Suitable for measuring trace amounts of oxygen in reducing gases such as nitrogen, hydrogen, and argon.
   • ·   Utilizing a fully Chinese-language human-machine dialogue menu, the operation is intuitive and convenient.
   • ·   It features a large-screen dot-matrix LCD display that can simultaneously show parameters such as oxygen level, date, and time.
   • ·   The upper and lower alarm points can be set arbitrarily within the full measurement range.
   • ·   Equipped with a paperless recorder function, it automatically charts the changes in oxygen concentration over time.
   • ·   Output 0 ～ 10 Or 4 ～ 20mA Standard signal.
   • ·   The standard RS232 The communication port can connect to a serial printer or enable two-way communication with a computer.
     
     Technical Performance Metrics ：
   • ·   Measurement range: 0 ～ 10ppm、0 ～ 100ppm、0 ～ 1000ppmO₂
   • ·   Measurement accuracy: > 10 ppm ± 3% FS 、 ≤10 ppm ±5% FS
   • ·   Output: 0 ～ 10mA (0 ～ 1.6 kΩ) Or 4 ～ 20mA(0 ～ 800Ω)
   • ·   Repetitiveness: ≤±2%FS
   • ·   Power Consumption: ≤8W
   • ·   Power supply: 220VAC ± 22VAC ， 50Hz ±1Hz
   • ·   Ambient temperature: 0 ～ 40℃
   • ·   Sample gas flow rate: 300ml ／ min
   • ·   Intake pressure: < 0.1Mpa ( 0.05MPa Best)
   • ·   Intake air temperature: 0 ～ 40℃
   • ·   Alarm contact capacity: 265VAC/1A
   • ·   External dimensions: 198 × 138 × 250 mm
   • ·   Instrument weight: 4.0kg
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