Yokogawa Oxygen Analyzers

The lineup of oxygen analyzers includes ZR series zirconia oxygen analyzers and the AV550G Averaging Converter for boiler combustion control; the MG8 paramagnetic oxygen analyzers for measuring the oxygen in flammable gas mixtures; and OX400, OX100 series oxygen analyzers for environmental monitoring at reflow furnaces and globe boxes.

The lineup of ZR series zirconia high temperature humidity analyzers that are used with dryers and humidifiers in various industries.

Yokogawa Oxygen Analyzers

Oxygen analyzers provide valuable measurements in combustion control, process quality, safety and environmental applications. These are used in a variety of measurement scenarios including, but not limited to, boiler trimming in power plants, furnace optimization in refinery and petrochemical applications, process safety in vent headers, and product quality in ethylene production.

Yokogawa offers a full range of product solutions including an industry leading zirconia oxygen probe series, as well as a line of cutting edge tunable diode laser spectrometers.

In-Situ Gas Analyzer TDLS8000
Yokogawa’s new TDLS8000 houses all of the industry’s leading features in one robust device. The platform design is for in situ measurements which negates the need for sample extraction and conditioning.

Extractive O2 Analyzer TDLS220
The TDLS220 is specifically designed for accurate, reliable and low maintenance measurement of volume percent (vol%) oxygen (O₂) for safety and process applications. It is a viable alternative to paramagnetic O₂analyzers.

Multi Channel Oxygen Analyzer System ZR22/AV550G
The AV550G multi channel oxygen analyzer system allows for measurements on up to 8 ZR22 probes simultaneously.The ZR probe’s in-situ measurement method does not require any process conditioning or extractive sampling. This reduces maintenance costs and allows faster measurement response to changes in the process.

Single Channel Oxygen Analyzer System ZR22/ZR402
The ZR probe’s in-situ measurement method does not require any process conditioning or extractive sampling. This reduces maintenance costs and allows faster measurement response to changes in the process.
Integral Oxygen Analyzer ZR202
The EXAxt ZR202 transmitter / detector combines benefits of the ZR402 remote analyzer and the ZR22 detector into an intelligent, rebuildable, low-cost measurement device for in-situ humidity measurement.
Calibration Units
Yokogawa’s Zirconia oxygen detector systems offer a variety of calibration units for quick, easy control of calibration gases giving the user simple, accurate calibration.

WZ-H Cables
The WZ-H cables supplied by Yokogawa Corporation of America are compatible with all Yokogawa ZR22, ZR402, and AV550G models. The purpose of these cables is to transmit the signal from the sensor/detector to the analyzer. Additionally, the cabling provides for electrical input to the heater assembly within the detector for cell temperature control.

FLY ASH Filter
The accumulation of fly ash on the zirconia cell affects its ability to measure oxygen concentration. Fly ash and its constituents can reduce the life of the zirconia cell and affect the cells response time to changes in gas concentration. Yokogawa’s large surface area sintered metal filters are designed to keep particulate and ash off the measurement cell.

IAC-24
The IAC-24 is an ultra compact device that mounts directly onto the ZR22G or ZR202G zirconia detector. It is used to calibrate a single detector. The unique mounting configuration is designed to minimize installation time, wire pulls and tubing runs that are typical with auto calibration.

ZR402G/ZR22G Separate Type Zirconia　Oxygen Analyzer

The ZR402G zirconia oxygen analyzer features a touch screen LCD with excellent operability for settings, calibrations, and trend graph viewing. The probe uses a highly reliable zirconia sensor and a field-replaceable heater assembly.
The applications range from energy-consuming industries, such as iron and steel, electric power, and oil and petrochemical, to various combustion facilities, such as incinerators and small- and medium-sized boilers.

ZR202G Integrated Type Zirconia Oxygen Analyzer

The ZR202G zirconia oxygen analyzer features an integrated probe and converter and does not require a sampling system. The probe can be inserted directly into a stack or furnace to measure the oxygen concentration of the stack gas.
The probe uses a highly reliable zirconia sensor and a field-replaceable heater assembly. The converter features infrared switches, allowing a user to operate the instrument without opening the cover in the field.

ZR22S/ZR202S Explosionproof Zirconia Oxygen Analyzer

The ZR22S explosionproof zirconia oxygen probe is used together with a ZR402G non-explosionproof converter installed in a non-hazardous area. The probe can be inserted directly into a stack or furnace to measure the oxygen concentration of the stack gas.
The ZR202S explosionproof integrated type zirconia oxygen analyzer has both a probe and a converter, and does not require a sampling system.

The probe uses a highly reliable zirconia sensor and a field-replaceable heater assembly. The converter features infrared switches, allowing the user to operate the instrument without opening the cover in the field.

AV550G Zirconia Oxygen Averaging Converter

The AV550G Averaging Converter can accept inputs from up to eight zirconia oxygen detectors, reducing installation and maintenance costs. It sends output signals for individual and multiple (averaged) oxygen concentrations and can be used for combustion control.
The AV550G features a large 5.7-inch touch screen LCD with excellent operability for settings, calibrations, and trend graph viewing. The AV550G is ideal for combustion control in large utility boilers and various types of industrial furnaces.

OX400 Low Concentration Zirconia Oxygen Analyzer

The OX400 is a highly accurate and reliable low-concentration zirconia oxygen analyzer that is capable of measuring a wide range of concentrations, from 0-10 ppm up to 0-100 vol%O₂.
A proprietary new thin-film deposition technology was used in the zirconia sensor that creates a molecular bond between the zirconia element and the platinum layer. This prevents separation, enables a reduction in sensor size and ensures a high-speed response and long 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.

MG8G Paramagnetic Oxygen Analyzer (General Purpose Type)

The MG8G paramagnetic oxygen analyzer is a highly sensitive measurement instrument with excellent operability and reliability and measures the oxygen concentration of flammable gas mixtures. The sensor has a totally new architecture with a magnetic proportional flow rate system whose development was based on our long and field-proven experience.
A clean auxiliary gas (N₂), not process gas, flows past the detection unit sensor. Therefore, a stabilized output that is not influenced by contamination from process or other corrosive gases can be obtained for long periods.
With no moving parts, the instrument is highly quake and shock resistant. The interference-gas compensation function ensures accurate measurement even in gases that exhibit a magnetic susceptibility, such as flammable gases.

MG8E Paramagnetic Oxygen Analyzer (Flameproof Type)

The MG8E paramagnetic oxygen analyzer is a highly sensitive measurement instrument with excellent operability and reliability and measures the oxygen concentration of flammable gas mixtures. The analyzer is of flameproof construction and the sensor has a totally new architecture with a magnetic proportional flow rate system whose development was based on our long and field-proven experience.

A clean auxiliary gas (N₂), not process gas, flows past the detection unit sensor. Therefore, a stabilized output that is not influenced by contamination from process or other corrosive gases can be obtained for long periods.

With no moving parts, the instrument is highly quake and shock resistant. The interference-gas compensation function ensures accurate measurement even in gases that exhibit a magnetic susceptibility, such as flammable gases. Highly stable indications at near the zero point make the MG8E suitable for low-concentration measurements such as in safety control.

OX100 Limiting Current Type Oxygen Analyzer

The OX100 is a current limit type oxygen analyzer that is ideal for monitoring the oxygen concentration of ambient gases in production processes for semiconductors and electronic components, such as globe boxes, and for monitoring oxygen deficiency in clean rooms. It provides highly stable and accurate measurements for long periods, is easy to operate, and has a compact design, which make it suitable for integration into systems.

A measuring range between 0 and 1000 ppm or between 0.1 and 25% can be manually selected. A dedicated sampling unit is available for measurements where the sample gas contains a small amount of organic gases.

OX102 Enhanced Oxygen Analyzer

The OX102 is a current limit type oxygen analyzer that is ideal for monitoring the oxygen concentration of ambient gases in production processes for semiconductors and electronic components, such as globe boxes, and at nitrogen reflow furnaces. It provides highly stable and accurate measurements for long periods, is easy to operate, and has a compact design, which make it suitable for integration into systems.
The measuring range can be switched automatically, remotely, or manually to 0 to 100 ppm, 0 to 1000 ppm, 0 to 10000 ppm, or 0 to 25%. A dedicated sampling unit is available for measurements where the sample gas contains a small amount of organic gases.

ZR402G/ZR22G Separate Type Zirconia High Temperature Humidity Analyzer

The ZR402G humidity analyzer features a touch screen LCD with excellent operability for settings, calibrations, and trend graph viewing. The probe uses a highly reliable zirconia sensor and a field-replaceable heater assembly.
The analyzer does not require a sampling system, and is able to continuously measure the humidity of high temperature air. It is ideal for monitoring and controlling humidity in steam and electric dryers as well as humidifiers used in various industries.

ZR202G Integrated Type Zirconia High Temperature Humidity Analyzer

The ZR202G humidity analyzer features an integrated probe and converter. The probe uses a highly reliable zirconia sensor and a field-replaceable heater assembly. The converter has infrared switches, allowing a user to operate the instrument without opening the cover in the field.
The ZR202G does not require a sampling system, and is able to continuously measure the humidity of high temperature air. It is ideal for monitoring and controlling humidity in steam and electric dryers as well as humidifiers used in various industries.