Our Series 900 includes a line of trace oxygen analyzers that have a measuring range of 0.1ppm up to 10,000ppm.  The electrochemical technology is used in the trace oxygen analyzers.  That means that the trace oxygen analyzers are not affected by hydrocarbons.  Common applications for our trace oxygen analyzers are glovebox monitoring, gas manufacturers, heat treating and semiconductor processing.

There are 3 ways to mount the trace oxygen analyzers:  benchtop/panel mount, NEMA 4X wall mount, or rack mount.  Available options include internal pumps, analog outputs, and alarms.

Use the menu above to select another oxygen analyzer or to find information on our permeation analyzers.

Illinois Instruments' Series 900 Trace Oxygen Analyzers offer unmatched versatility in high performance on-line trace oxygen analyzers.

Utilizing a variety of specially engineered electrochemical fuel cells, the Series 900 Trace 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.