Trace Oxygen Analyzers

Trace Oxygen Analyzers and Transmitters – Oxygen PPM

The focal point of Alpha Omega Instruments trace oxygen analyzers and transmitters is its advanced electrochemical sensor that provides exceptional life, accuracy, and stability. Alpha Omega Instruments electrochemical sensors provide as much as three times the life of conventional “fuel cell” type sensors. And, if you are looking to measure from parts per billion to 100%, Alpha Omega Instruments offers a high performance zirconium oxide oxygen sensor. Products are available in a host of enclosure types ranging from general purpose to explosion proof.

Choose from the following products:

Portable Oxygen Analyzer (Series 3520)

The Series 3520 Portable Trace Oxygen Analyzer is battery-operated and designed for industrial and commercial applications where accurate and reliable spot trace oxygen measurements are needed. The Series 3520 features Alpha Omega Instruments’ long life ambient temperature electrochemical sensor. The enclosure is made from durable polycarbonate and is rated NEMA 1 for general purpose service. The instrument is powered from rechargeable NICAD batteries that are mounted internal to the analyzer. Recharging of the batteries is accomplished using a built-in battery charger with a universal AC adapter. Single measurement ranges are available from 0-10 PPM to 0-20,000 PPM with values displayed on a front panel liquid crystal display (LCD). Options include pressure regulators, flow meters, in-line filters, pumps, and block & bleed bypass sampling systems.

Series 3000

The Series 3000 Trace Oxygen Analyzer is a rugged, microprocessor-controlled oxygen analyzer designed for continuous or intermittent measurement of trace oxygen concentrations ranging from 0-1 PPM to 0-10,000 PPM. It is available in either a single- or three-range configuration, and auto-ranging for the latter is available at no additional charge.

Explosion Proof Trace Oxygen Transmitter-Series 3500/3510

The Series 3500 and 3510 Trace Oxygen Transmitters are blind transmitters designed to provide exceptional performance, accuracy, and stability. Shown here with its explosion-proof enclosure.

Trace Oxygen Transmitter-
Series 3500/3510

The Series 3500 and 3510 Trace Oxygen Transmitters are blind transmitters designed to provide exceptional performance, accuracy, and stability.

Zirconia Oxygen Analyzer (ZRO 2000)

FAST Response Zirconia Oxygen Analyzer is designed to provide accurate and repeatable trace and percent oxygen measurements in a variety of gases. Oxygen readings from parts per billion to 100% can be achieved with one instrument. The rugged and compact design of the ZRO2000 FAST Response Oxygen Analyzer makes it ideally suited for industrial applications where continuous oxygen measurements are required.

Related Application Notes:

Measuring CO₂ and O₂ in Bioreactors

Measuring CO₂ and O₂ in Bioreactors Accurate measuring of oxygen (O₂) and carbon dioxide (CO₂) is critical for a number of processes across a number of industries. From healthcare and veterinary medicine to landfills and even restaurants, the measurement and analyzation of CO₂ and/or O₂ ensures medical machines, food packaging, and more are safe, healthy, and up to standards. Today, we’re going to focus on the importance of measuring these two gases in bioreactors and how to obtain an accurate reading of both. What is a bioreactor? Before understanding how to measure CO₂ and O₂ in a bioreactor, it’s first important to understand what a bioreactor is and what it’s used for. A bioreactor, or sometimes referred to as a fermentor, is a vessel that supports a biologically active environment to grow a number of organisms including yeast, bacteria, fungi, and more. The process can either be aerobic, meaning results are produced utilizing oxygen, or anaerobic, meaning there is no presence of oxygen. The apparatus is able to do this by controlling pH levels, temperature, and airflow. The size [...]

Glove Box Oxygen Analyzer

Oxygen Monitors Used To Ensure The Suitability Of Glove Box Atmospheres Oxygen monitors and analyzers are often used as a diagnostic tool to ensure the quality of the inert atmosphere within a glove box. Unlike a storage compartment within a car’s dashboard, however, there is another type of glove box used by industry, government institutions, and university laboratories. This “other” type of glove box (A.K.A. dry box) is a sealed enclosure designed to isolate reactive and/or hazardous materials. Glove boxes are typically fabricated from plexiglas, stainless steel, acrylic plastics, or a combination of the above and have (a) transparent side(s). The enclosures are equipped with gloves fabricated from rubber, Hypalon, or other chemical resistant materials that provide users the ability to manipulate materials within the glove box without risking contamination of the materials and concomitantly protect the user. Glove boxes can be configured as free standing devices or for bench-top use. When an inert atmosphere is required, the enclosures are normally purged with high purity nitrogen or argon. This inert atmosphere is maintained at a slightly positive pressure to [...]

Measuring PPM Oxygen for Welding Applications

Measuring PPM Oxygen for Welding Applications Not all welding applications require inert shielding gas. However when it does, use of an accurate and reliable trace oxygen analyzer is an essential tool.  TIG (Tungsten Inert Gas) welding of titanium requires the use of inert shielding gas, typically either high purity argon or a mix of argon/helium containing under 100 parts per million (PPM) of oxygen. Air contains 209,000 PPM of oxygen, so in order to create an acceptable atmosphere within the weld box (avoiding leakage of air into the box), a constant purge of inert shielding gas is normally applied. To help ensure oxygen levels within the weld box are at acceptable levels, a trace oxygen analyzer becomes a critical tool. Excessive levels of oxygen often lead to poor quality welds. The following video helps to describe the necessity of measuring trace oxygen in inert shielding gas. Caution should be exercised when selecting an oxygen analyzer for welding applications.  When PPM oxygen measurements are required, avoid analyzers that only measure percent oxygen levels. Most of these types [...]

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