| Illinois Instruments, Inc. offers a wide range of products to satisfy nearly every process gas measurement need. Several sensor and enclosure choices make these process analyzers among the industry's most comprehensive product offerings. For a complete description of the features and typical applications for any product model, review the choices below or click on the instrument at right. Oxygen:
Flexible enclosure systems:
Standard cabinet can be used as is on the bench or Panel Mounted with integral flange.
Industrial configuration is rated NEMA 4X / IP66 for weather and waterproof locations.
Rack Mount (19 inch / 4U) houses one or two analyzers. |
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Thursday, November 13, 2008
Intrinsically Safe Product
Illinois Instruments' EC91 Intrinsically Safe Process Oxygen Transmitter detects oxygen levels from .01 ppm to 21.0% and can be used in most industrial gases and atmospheres. The instrument requires no periodic maintenance such as replacing electrodes or electrolyte and is easily calibrated using ambient air or standard calibration samples. The enclosure is molded of glass fiber reinforced polyester, an impact resistant material unaffected by oils, common acids, and alkalies. A wide door is fitted with stainless steel hinge pins making it suitable for harsh environments and protected to IP67 standards.
The Model EC91 can be wall or post mounted and transmits a 4-20mA signal corresponding to the oxygen level. The unit may have up to six ranges and has an LCD for local indication. An optional control room display and alarm unit is also available. All electronic circuits are intrinsically safe and have been certified to BASEEFA and CENELEC standards. Connections to safe areas must be fitted with shunt diode safety barriers.
Features:
 | Insensitive to sample flow rate |
| Maintenance free disposable measuring cell |
| Six selectable ranges cover ppm and percent levels |
| Air calibration check |
| Rugged construction unaffected by orientation or vibration |
| Simple to operate |
| Specific to oxygen |
Applications:
| Inert atmosphere gas blanket monitoring |
| Quality control (gas mixing and manufacturing) |
| Cryogenics/Glove boxes |
| Gas purity certification |
| Microbiology/Biotechnology |
| Metallurgy |
| Safety applications |
| Gas line monitoring |
Fuel Cell Sensor Technology
Illinois Instruments' Series 900 Process Oxygen Analyzers offer unmatched versatility in high performance on-line oxygen analyzers.
Utilizing a variety of specially engineered electrochemical fuel cells, the Series 900 Oxygen Analyzers are designed to monitor oxygen within most industrial gases and atmospheres. These highly advanced instruments incorporate user-friendly software and the highest quality sensors to provide accurate, reliable results.
No matter what your measuring range, the Series 900 has an analyzer to suit your needs.
Trace Sensor (parts per million)
The trace sensor is designed for measuring 0-10,000 ppm oxygen in most industrial gas streams. This sensor, when used in a normal operating range, typically lasts 3-5 years.
Ultra-Low Trace Sensor (0-1 ppm)
This high performance sensor was developed for applications where continuous oxygen measurements are maintained between 0 and 1 ppm.
RACE™ Sensor
The RACE™ Sensor (USA and British patents pending) is a breakthrough in electrochemical technology. Our unique design prevents the sensor from being saturated by high levels of oxygen. With TURBOPURGE™, levels as low as 20 ppm can be reached from ambient air within 2 minutes. This sensor is unaffected by hydrocarbons or volatile atmospheres making it the ideal choice in applications such as wavesolder and reflow ovens.
The RACE™ Sensor is maintenance free and only requires infrequent calibration. No caustic electrolyte to monitor or replace. The RACE™ Sensor carries a 3 year warranty.
Percent Sensor
The Illinois Instruments percent sensor is capable of accurate measurements from 0 - 100% oxygen. Unlike most electrochemical sensors, this sensor is not affected by carbon dioxide.
Zirconia Sensor Technology
Illinois Instruments' Series 800 Oxygen Analyzers are designed for the rapid and accurate measurement of oxygen from low ppm levels to 100% in nearly all industrial gases and atmospheres. All instruments within this group incorporate a unique miniature zirconia ceramic oxygen sensor to provide high accuracy, fast response, and a wide measuring range. This sensor is non-depleting and requires no periodic inspection or maintenance.
All models feature microprocessor control for stable and repeatable operation. A bright, autoranging LED display provides direct measurement output. User-adjustable alarms, scaleable analog output signals, RS232 interfacing, and process sample bypass flow systems are all optionally available.
Three different configurations add to the base Model 810 (shown at right) to offer the choices needed to satisfy virtually all industrial environment and operational constraints.
 |  |  |
or Panel Mounted. | rated for weatherproof and waterproof locations. | houses one or two analyzers in its 4U (19 inch) rack mount cabinet. |
Features:
| Non-depleting sensors |
| Ambient air calibration |
| Specific to oxygen |
| Autoranging LED displays |
| Fast response |
| Bench top or in-panel installation |
| Analog outputs, alarms, and RS232 interface available |
| Bypass flow system available |
Applications:
| Gas purity certification |
| Gas blanket monitoring |
| Glove box monitoring |
| Purge gas monitoring |
| Food and beverage packaging |
| Controlled environment monitoring |
| Quality control (gas mixing and manufacturing) |
| Semiconductor manufacturing |
Saturday, November 1, 2008
A Dedicated Infrared Analyzer for Fluid Condition Monitoring
Infrared analysis has long been applied as a complement to wear metal monitoring. ... Infrared analysis has long been applied as a complement to wear metal monitoring.
Infrared Analyzer (SIR 3001)
Front D E S I G N D E S I G N ph 727.474.2877 fax 727.342.7304 1420 Hales Hollow Dr. em ail: info@SandhouseDesign. com U S A Dunedin, Florida 34698 Infrared Analyzer (SIR ...
Wednesday, September 10, 2008
An oxygen analyzer sensor, or lambda sensor, is an electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed. It was developed by Robert Bosch GmbH during the late 1960s under supervision by Dr. Günter Bauman. The original sensing element is made with a thimble-shaped zirconia ceramic coated on both the exhaust and reference sides with a thin layer of platinum and comes in both heated and unheated forms. The planar-style sensor entered the market in 1998 (also pioneered by Robert Bosch GmbH) and significantly reduced the mass of the ceramic sensing element as well as incorporating the heater within the ceramic structure. This resulted in a sensor that both started operating sooner and responded faster. The most common application is to measure the exhaust gas concentration of oxygen for internal combustion engines in automobiles and other vehicles. Divers also use a similar device to measure the partial pressure of oxygen in their breathing gas.
Scientists use oxygen sensors to measure respiration or production of oxygen and use a different approach. Oxygen sensors are used in oxygen analyzers which find a lot of use in medical applications such as anesthesia monitors, respirators and oxygen concentrators.
There are many different ways of measuring oxygen and these include technologies such as zirconia, electrochemical (also known as Galvanic), infrared, ultrasonic and very recently laser. Each method has its own advantages and disadvantages.
Scientists use oxygen sensors to measure respiration or production of oxygen and use a different approach. Oxygen sensors are used in oxygen analyzers which find a lot of use in medical applications such as anesthesia monitors, respirators and oxygen concentrators.
There are many different ways of measuring oxygen and these include technologies such as zirconia, electrochemical (also known as Galvanic), infrared, ultrasonic and very recently laser. Each method has its own advantages and disadvantages.
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