Atex in-situ oxygen analysers

Theanalyser zirconia oxygen in situ, designed for ATEX zones (refineries, petrochemical plants, boilers), enables precise combustion control.

ATEX in-situ oxygen analysers

ATEX in-situ oxygen analysers: features and advantages

• Field-replaceable Flame-arrester
  
• Compact and light design
• Fast response (4-7 seconds)
• Excellent accuracy and reliability
• Remote electronics and calibration
• ATEX/IECEx Zone1 IIB+H2 T3 Gb certified probe

Specifications for the ATEX in-situ oxygen analysers

Fuji Electric's ATEX in-situ oxygen analyser offers an advanced, reliable solution for accurate measurement of oxygen levels in non-combustible gas mixtures. Designed for diverse applications such as industrial heat production in refineries, petrochemical reactor furnaces, and large combustion plants, this analyser meets the most stringent requirements of industrial environments.

Operating principle and Certification

The heart of this analyser is an in-situ zirconia sensor, ensuring exceptional oxygen measurement accuracy. Certified to stringent standards, the probe is certified II2G Ex d IIB+H2 T3 Gb (Ta : -20 °C to +60 °C) LCIE 13 ATEX 3045X IECEx LCIE 13.0027X and the zirconia sensor II2G Ex d IIC T5 Gb (Ta : -20 °C to +55 °C) LCIE 13 ATEX 3066X.

Gas Pressure and Measurement Scales

The analyser allows flexible measurement ranges from 0 to 2% up to 50% oxygen vol., all user-configurable. What's more, the measurement gas pressure range varies from -3 to +3 kPa (-306 to +306 mmH2O), offering adaptability to the specific conditions of each application.

Performance and reliability

Exceptional repeatability of ≤ ± 0.5% FS and linearity of ≤ ± 2% FS testify to the consistent reliability of the analyser. The fast response time, between 4 and 7 seconds to reach 90% of response, ensures real-time measurement and efficient responsiveness to changes.

Advanced Outputs and Communications

Fuji's oxygen analyser offers a variety of outputs and communications, with a 4-20 mAdc or 0-1 Vdc analog output, as well as RS-485 communication using Modbus® protocol. Contact outputs include 6 points, with SPST-NO contacts for functions such as high/low limit alarm, maintenance in progress, purge in progress, calibration in progress, and the analyser faults.

Options and Advanced Functions

In addition to its standard performance, the analyser offers optional advanced features such as combustion efficiency display, cleaning, automatic calibration, selector valve and flowmeter, providing greater flexibility to meet the specific needs of each application.

Installation and power supply

Installation of the controller is simplified with panel mounting, and the cable length between controller and detector can be up to 50 meters. Power can be supplied at 100-120 Vac or 200-240 Vac, at a frequency of 50/60 Hz, ensuring worldwide compatibility.