The YOKOGAWA ZR402G-M-E-E-A/SCT/C3 is a split-type zirconia oxygen analyzer converter produced by Yokogawa Electric. It features high precision, high reliability and ease of operation, and is widely used in industrial combustion monitoring and control fields.
Product features
High-precision measurement:
Utilizing advanced zirconia sensor technology, it can accurately measure the oxygen concentration in combustion exhaust and mixed gases, with a wide measurement range from 0.01% to 100% vol O₂.
The sensor performance is stable and does not drift over a long period, ensuring the reliability of the measurement results.
Easy operation:
The converter is equipped with an LCD touchscreen, featuring multiple setting displays, calibration displays, and oxygen concentration trend displays, making the operation intuitive and simple.
It supports automatic, semi-automatic, and manual calibration modes, allowing users to choose flexibly according to their needs.
High reliability:
The probe uses long-life, highly reliable zirconia sensors, and the heating component can be replaced on-site, reducing maintenance costs.
The converter has maintenance functions such as self-diagnosis, which can promptly detect and handle faults, ensuring the stable operation of the system.
Remote maintenance:
Remote maintenance is carried out using the digital communication (HART) protocol, reducing maintenance costs and time.
It supports multi-point mode connection, facilitating users to expand according to actual needs.
Various installation methods:
The probe is designed for direct insertion, which can be installed at positions such as the flue wall, for direct gas measurement without the need for sampling devices.
The converter supports various installation methods, such as pipe-mounted, panel-mounted, and wall-mounted, adapting to different testing environments.
Technical Specifications
Measurement object: Oxygen concentration in combustion exhaust and mixed gases.
Measurement system: Zirconia system.
Output signal: 4-20mA DC (maximum load resistance 550Ω).
Measurement range: Any setting within the range of 0-5% vol O₂ to 0-100% vol O₂ (unit: 1% vol O₂), or local range.
Digital communication: HART protocol, 250-550Ω, depending on the number of field devices connected to the loop (multi-point mode).
Sample gas pressure: -5 to +250 kPa (pressure compensation option required when greater than +5 kPa).
Sample gas temperature: 0-700℃ (only probe part), 700-1400℃ (with high-temperature probe adapter).
Probe length: Various specifications available, such as 0.15m, 0.4m, 0.7m, 1.0m, 1.5m, 2.0m, 2.5m, 3.0m, 3.6m, 4.2m, 4.8m and 5.4m, etc.
Environmental temperature: Probe -20 to 150℃, converter -20 to 55℃.
Power supply: 85-264V AC, 45-66Hz.
Application fields
The YOKOGAWA ZR402G-M-E-E-A/SCT/C3 is widely used in various industries for combustion monitoring and control processes, including but not limited to:
Energy consumption industry: such as the steel industry, the electronics and power industry, the petrochemical industry, the ceramics industry, the paper industry, the food industry and the textile industry, etc.
Combustion equipment: such as incinerators, small and medium-sized boilers, etc.
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