Low Level Zirconia Oxygen Analyzer by Yokogawa
The OX400 is a low level oxygen analyzer that uses zirconia-based technologies. A thin-film deposition technology is used in the zirconia sensor that creates a molecular bond between the zirconia element and the platinum layer, allowing for a smaller sensor with a longer life.
The OX400 can be used to control and monitor various semiconductor applications, and to control environment, air leakage into inert gas, and other processes. Applications include:
- Oxygen concentration control in semiconductor-related diffusion and drying furnaces and in LCD manufacturing processes
- Oxygen concentration control in solder pot flow and re-flow ovens, and glove boxes used in electronics manufacturing, and in gas production processes
- Oxygen concentration measurements to prevent dust explosions during powder transfer
Features
Predictive Diagnostics
The OX400 includes advanced analyzer diagnostics that allow technicians to easily monitor the health of the analyzer and use that data to plan a minimal maintenance schedule. These self-diagnosis functions can detect malfunctions such as heater temperature error, temperature sensor burnout, and sensor resistance value error so preventative actions can be taken immediately.
It also includes multi selector, auto range, partial range, and pump on/off functions, and will automatically provide a range of the 4-20 mA output and give a signal of the range it’s in as well as RS-232 digital communication.
Simple, Inexpensive Maintainability
The OX400 is compact and lightweight for easy installation and features a probe design that allows for easy cell replacement and repair of internal components. With this design, the cell sensor can be easily replaced on site.
Robust Cell Design
Its unique cell design features a cell that is less affected by contaminants which allows for a longer sensor lifetime and high measurement sensitivity while reducing unwanted effects from other process components.
Built-in Pump
Because it’s extractive, a built-in pump or aspirator gets the sample to the probe, reducing the need for external sampling systems.
Details
Zirconia Oxygen Analyzer Working Principle
In electrochemistry, there is a principle of concentration difference. Zirconia functions as the electrolyte in the formation of a concentration difference battery to generate an electromotive force proportional to the oxygen concentration ratio. This occurs through the following means:
As a solid electrolyte, zirconia transfers various oxygen ions under high temperatures. When the zirconia is in between porous platinum electrodes with one in contact with a gas containing oxygen and different oxygen concentrations on either side, oxygen molecules in higher concentrations become oxygen ions by getting electrons from the platinum electrode, which becomes the battery cathode. The oxygen ions transfer through the zirconia dielectric to the low-concentration side, losing electrons to the platinum electrode. So the oxygen ions turn back into oxygen and the platinum electrode becomes the anode of the battery. Measuring the electromotive force between the two electrode plates reveals the oxygen content.
Low-Level Oxygen Analyzer Applications
- Oxygen concentration control in semiconductor-related diffusion and drying furnaces and in LCD manufacturing processes
- Oxygen concentration control in solder pot flow and reflow ovens, and glove boxes used in electronics manufacturing, and in gas production processes
- Oxygen concentration measurements to prevent dust explosions during powder transfer
Resources
- Yokogawa's CENTUM CS 3000 DCS Monitors and Controls Operations at Poultry Litter-to-energy Plant
- The boiler and turbine startup procedures reduces operator workload and helps to ensure a smooth and safe startup
Ingress of oxygen into a finished beverage container can affect the taste and shelf life of the product. The greater the concentration of oxygen in the container's headspace or dissolved in the solution itself, the greater the flavor degradation. The presence of oxygen causes negative quality characteristics in beverages such as beer and wine.
In many industries, it is becoming increasingly important every year to measure oxygen concentrations not only to ensure product quality but also to conserve the environment and improve energy efficiency. The required measurement levels of oxygen concentration vary from less than ppm to 100% depending on the application.
Downloads
Brochures
Instruction Manuals
General Specifications
Software
- Data Acquisition Software Download (149 KB)
- Software Instructions (33 KB)
Technical Information
- Oxygen Analyzer Selection Guide (727 KB)
Certificates
- C-Tick: Australian Government (29 KB)
- C-Tick: Australian Government (30 KB)
- CE (82 KB)
- CE (44 KB)
- CSA (91 KB)
- CSA (139 KB)
- KC (112 KB)
- KC (110 KB)
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