Paramagnetic oxygen analyser

Fuji Electric's paramagnetic oxygen analyser is a fast, reliable instrument for measuring oxygen concentration in combustion gases.

Paramagnetic oxygen analyser ZAJ

Features of the paramagnetic O2 Analyser

• Fast response within 2 seconds
• Tolerant to interference from other gas (H₂, CO₂, etc.)
• Suppressed ranges available (e.g. 21–100% O₂)
  
• No moving parts - low maintenance
• Automatic calibration, communication (optional)

Specification of the paramagnetic oxygen analyser

Paramagnetic operating principle

The heart of these analysers is based on the paramagnetic principle of pressure sensing. In the presence of a reference gas, such as nitrogen (N₂), the instrument measures variations in oxygen concentration with remarkable accuracy. This enables measurement scales to be configured according to the reference gas used.

Configurable Measurement Scales

Measuring ranges with N₂ reference gas offer impressive flexibility, from 0 to 100% oxygen. Similarly, scales with reference gas air and 100% O₂ are configurable, covering 21 to 100% and 100 to 0% oxygen respectively. This adaptability makes analysers ideal for a variety of applications.

Precision and Reliability

Precision is the cornerstone of these paramagnetic analysers. With a repeatability of ≤ ±1% and linearity also ≤ ±1%, these instruments deliver reliable and accurate results, meeting the industry's most stringent requirements.

Exceptional reactivity

Responsiveness is crucial in dynamic environments. The paramagnetic analysers offer exceptionally fast response times, reaching 90% of the measurement in less than 2 seconds. This responsiveness enables real-time monitoring of variations in oxygen concentration.

Outputs and Communication Options

Analog 4-20 mA outputs facilitate integration into control systems. Optional multiple contact outputs enable advanced functions such as calibration in progress, high/low limit alarms, etc. Optional RS-485 (Modbus) communication provides additional connectivity for centralized management.

Versatile installation and reliable power supply

These paramagnetic analysers are designed to adapt to a variety of configurations. They can be installed in a 19″ rack, on a panel, or on a table, offering versatility of use. The 85 to 264 VAC 50/60 Hz power supply ensures operational stability in a variety of conditions.

Effects of interference