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Oxygen concentration detection is a critical procedure to secure production safety and boost operational efficiency in industrial sectors including petrochemicals, power and energy. Abnormally high or low oxygen levels may lead to explosions, equipment damage and other hazards, making an accurate and stable oxygen analyzer indispensable. The GPR-18/28 (ATEX) Oxygen Analyzer, originally imported from US manufacturer AII, stands out as the preferred instrument for industrial gas detection thanks to its superior performance and explosion-proof design. Ample stock is available at present to rapidly meet enterprise demands.
I. Core Advantages: Balanced Precision and Safety
1. High-Accuracy Measurement for Diverse Scenarios
The GPR-18/28 (ATEX) Oxygen Analyzer consists of two series to accommodate different precision requirements.
The GPR-18 Series is designed for trace oxygen measurement in hydrogen-bearing atmospheres, with measuring ranges from 0–10 ppm to 0–1% (0–25% only for calibration). Its lower detection limit (LDL) reaches 500 ppb O₂, with accuracy better than 2% of full scale under constant conditions and a T90 response time of less than 10 seconds. Equipped with the XLT sensor, it delivers stable readings even in environments with high carbon dioxide concentrations.
The GPR-28 Series targets ultra-low oxygen concentration detection, covering ranges of 0–1 ppm to 0–1000 ppm with a resolution of 0.001 ppm and T90 response time under 20 seconds, ideal for working conditions where oxygen levels are frequently below 1 ppm. Both models support air calibration with linearity within 1% full scale. At 25°C and 1 standard atmosphere, the GPR-28 Series sensor boasts a maximum service life of 336 months and a 1–3 month calibration cycle, drastically cutting maintenance expenses.
2. ATEX Explosion-Proof Certification for Hazardous Zones
Explosion resistance is a vital feature for industrial-grade instruments. The ATEX-certified enclosure of the GPR-18/28 (ATEX) Oxygen Analyzer is constructed from aluminum, measuring 40.6 × 45.7 × 27.9 cm and weighing 31.8 kg. It complies with the EEx d IIB+H₂ T6 standard and holds UL Class 1, Division 1, Groups B, C, D hazardous area certification, suitable for flammable working environments such as petrochemical plants. In addition, the unit is equipped with temperature compensation, with an operating temperature range of -10°C to 45°C (for XLT sensors) to guarantee accurate readings under complex working conditions.
II. Multi-Industry Applications: Safeguard Industrial Production
1. Petrochemical Industry – "Safety Guardian" for Flammable Environments
Strict oxygen concentration control is required for reactors, storage tanks and other links in petrochemical manufacturing to prevent explosions caused by mixtures of combustible gas and oxygen. The GPR-18/28 (ATEX) Oxygen Analyzer enables real-time gas concentration monitoring and transmits data via isolated 4–20 mA signals. Fitted with two adjustable latching type-C relays, it triggers immediate alarms once oxygen levels exceed thresholds or faults occur in sensors or power supplies, building a solid safety barrier for production. Its gas circuit connections adopt 1/8’’ or 1/4’’ compression fittings, and all media-contacting components are made of stainless steel with strong corrosion resistance, adapting to harsh petrochemical working environments.
2. Power & Energy Sector – "Data Support" for Efficiency Optimization
In power plants, hydrogen purity of hydrogen-cooled generators is closely correlated with oxygen content. The GPR-18/28 (ATEX) Oxygen Analyzer precisely detects trace oxygen in hydrogen to help optimize combustion efficiency and reduce energy waste. The instrument accepts inlet pressures of 0.34–2 barg (max 100 psig) and a flow rate of 0.5–1.0 Nl/min, meeting stable operation requirements of power systems. A 3½-digit bright red LED display delivers clear real-time readings for field operators.
III. Purchase & After-Sales Service: In-Stock Supply with Exclusive Discounts
As an original US AII imported device, the GPR-18/28 (ATEX) Oxygen Analyzer is a reliable solution for industrial gas detection featuring high precision, intrinsic safety and outstanding durability. It safeguards production safety and operational efficiency for both flammable petrochemical environments and power energy facilities.
Sufficient stock of the GPR-18/28 (ATEX) Oxygen Analyzer is available for immediate delivery without long lead times. Exclusive discounts apply upon inquiry. Contact: Mr. Gao, +86 18615230752.
The analyzer supports 100/120 V or 220/240 V AC power supply to match various industrial power standards. Professional technical after-sales support is provided to eliminate worries over equipment installation and calibration, ensuring long-term stable production for enterprises.
