Oxygen deficiency monitors are critical anywhere low oxygen levels in normal air can happen. A leak of any inert gas that displaces oxygen can pose a significant danger to personnel due to oxygen depletion. Leakage of stored or piped inert gases such as nitrogen, argon, helium, carbon dioxide, sulfur hexafluoride, etc., or cryogenic liquids can often lead to oxygen depleted breathing air which is often referred to as the “silent killer” resulting in numerous injuries or deaths annually. If oxygen levels continuously drop eventually the room air simply cannot support life. This is a very dangerous situation.
The Occupational Safety and Health Administration (OSHA) considers breathing air to be oxygen deficient below 19.5% according to the OSHA Respiratory Protection Standard 29 CFR 1920.134 and OSHA Confined Space Standard 29 CFR 1920.146. Breathing air contains essentially 20.9% oxygen by volume. Explore our reliable oxygen deficiency monitors with accurate sensors, percent level displays, and audible and visual safety alarms. You can trust our monitors
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Oxygen deficiency monitors are critical anywhere low oxygen levels in normal air can happen. If oxygen levels continuously drop eventually the room air simply cannot support life. This is a very dangerous situation.
If someone were to ask you what the major cause of gas related injuries in the workplace is, would your answer be carbon monoxide poisoning? What about exposure to ammonia, hydrogen chloride, carbon dioxide, hydrogen sulfide, or chlorine? Even though injuries are reported as a result of over exposure to these gases, oxygen deficiency continues to pose the largest overall health risk. Often referred to as the “silent killer”, oxygen depleted breathing air is the cause of numerous injuries and/or deaths on an annual basis. Breathing air oxygen can be depleted as a result of leakage of stored or piped inert gases such as nitrogen, helium, argon, carbon dioxide, sulfur hexafluoride, etc.
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Grain Storage Elevators |
Protect personnel from oxygen depletion of breathing air from leakage of silo gas. Silo gas is heavier than air and may collect in personnel areas. |
Silo Gas (CO₂, NO₂, NO) |
0-25% Oxygen |
· Oxygen Deficiency Monitor-Series 1000 |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Measure CO2 and O2 in fermentors |
Bio reactors frequently must be kept under tight control with respect to both oxygen and carbon dioxide |
Modified Atmosphere |
Percent O2 and Percent CO2 |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Monitoring of Glove Box Atmospheres |
Many experiments performed under controlled or inert atmospheres must be done under low oxygen conditions. |
Argon, Nitrogen |
Percent or Trace |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Hydrogen Production by Catalytic Partial Oxidation of Hydrocarbons |
Hydrocarbons are reacted with steam over a catalyst to produce gas containing H2, which can be used as a synthesis gas or the H2 can be separated & purified. |
H₂ |
Trace |
|
Transportation of Bulk Industrial Gases |
Bulk gases are transferred to tanker trucks or transported via pipeline for delivery to end users. |
Argon, Hydrocarbons, H₂, Mixtures, Nitrogen, N₂, Silo Gas (CO₂, NO₂, NO) |
Trace |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Preserve oxygen sensitive materials |
Monitor the percent oxygen in chambers and/or glove boxes that contain oxygen sensitive components. |
Argon, Helium, H₂, N₂ |
Percent |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Manufacturing of latex and related chemicals |
To determine O2 in the chemicals by spraying them into a nitrogen-free atmosphere and measuring the O2 content. |
N₂ |
Trace or Percent |
|
Inert gas blanketing of processes/reactor vessels and purging of chemicals |
Many processes involve chemicals that will react with O2 contamination to have harmful effects on the end product. Inerting with N2 is usually required. |
N₂ |
Trace or Percent |
· Percent Oxygen Analyzer-Series 2000 |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Inert gas blanketing of stored raw materials and finished chemical products |
Tanks, trucks and other storage vessels are filled with an inert gas to protect the stored chemicals from O2. |
N₂ |
Trace or Percent |
· Percent Oxygen Analyzer-Series 2000 |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Stack Gas Analysis |
Measure efficiency of combustion process |
Flue Gas |
Percent |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Switch boxes and electrical enclosures that require back filling with SF6 |
Excessive levels or oxygen can cause arcing and be a fore bearer of corrosion within transformers |
SF6 |
Trace |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Ammonia (NH3) production |
H2 & N2 are combined 3:1 ratio to produce NH3. There are many sources of H2, including steam reforming of natural gas, partial oxidation, etc. |
H₂, N₂ |
Trace |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Determine optimum transmission parameters |
Transmission of signals at different wavelengths are affected by the presence or absence of humidity and oxygen. |
N₂ |
Trace |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Measurement of oxygen in landfill gases |
Measurement of oxygen is used to help assess the quality of the landfill gases that are used to power incinerators and boilers |
Carbon Dioxide, Carbon Monoxide, Methane, N₂ |
Percent |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Glove Box |
Ensure gas used to back fill bulbs are devoid of oxygen. |
Argon, Helium, N₂ |
Trace |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
MRI Installations |
Monitor quality of breathing air to ensure that the cryogenic gases used to cool the MRI magnets don’t deplete the breathing air oxygen in confined spaces |
Air |
Percent 20.9% |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Sintering |
Powdered metal is pressed into shapes and heated to >2000 degrees F for hours in an inert atmosphere, to increase bulk density and other properties. |
H₂, N₂ |
Trace |
|
Specialty Welding |
The welding parts are done under inert conditions using either nitrogen, argon, or helium gas to provide a protective atmosphere. |
Argon, Helium, N₂ |
Trace |
|
Bright Annealing |
For certain steel alloying processes pure nitrogen atmospheres are required. So is the case in hot rolling mills. |
H₂, N₂ |
Trace |
|
Steel Production |
Many experiments performed under controlled or inert atmospheres must be done under low oxygen conditions. |
Argon, Nitrogen, N₂ |
Percent and Trace |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Waste Gas Monitoring at Nuclear Power Plants |
Monitoring inlet and outlet gas from recombiner. Percent O2 and H2 are measured at inlet to ecombine- er. O2 in ppm is measured at outlet of recombiner. |
Argon, Helium, H₂, N₂ |
Trace |
|
Tritium Recovery |
Research in separating tritium from deuterium, after the use of heavy water (D2O) in nuclear reactors. |
Deuterium, Tritium |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Tritium Recovery |
Research in separating tritium from deuterium, after the use of heavy water (D2O) in nuclear reactors. |
Deuterium, Tritium |
Trace |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Pipelines containing gas feedstocks such as natural gas |
Gas producers and gas pipeline end users have specifications requiring low ppm O2 in natural gas. |
Hydrocarbon feed-stocks, Natural Gas |
Trace |
|
Pipelines containing gas feedstocks such as natural gas |
Gas producers and gas pipeline end-users have specification requiring low ppm O2 in natural gas. |
Hydrocarbon feed-stocks, Natural Gas |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Production of polyethylene, polypropylene, polyesters and other polymers |
Feedstock polymerization reaction creates plastics that meet desired specifications. In certain processes N2 blankets prevent O2 contamination |
Ethylene, N₂, Other, Propylene |
Trace or Percent |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Monitoring of Centrifuges |
Drying of solvent-based pharmaceutical products often requires use of process centrifuges. To avoid flash fires, oxygen levels are kept under 2%. |
N₂ |
Percent |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
UV/E-beam Curing |
Electron Beam and/or UV curing of certain plastics requires the curing be done in a low oxygen environment. Excessive levels of oxygen adversely affect the curing and product spoilage increases. |
N₂ |
Trace or Percent |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Power Plant Hydrogen-Cooled Generators |
Hydrogen is an excellent cooling gas for turbine generators because it has a low viscosity and high thermal conductivity reducing friction & heat losses. |
H₂ |
Trace |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Ensure the Quality of the Gas Generated |
Pressure Swing Adsorption and Vacuum Swing Adsorption Systems often incorporate O2 monitors to help ensure gas quality. |
Air |
Percent |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Annealing of Wafers |
Silicon wafers are heat treated in an inert atmosphere, high temperature furnace. |
Argon, Helium, H₂, Mixtures, N₂ |
Trace |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Furnaces for production of ceramic components (sintering process) |
Ceramic components are made from sintered materials which involve heat treating/bonding of powders to form a coherent shape. |
N₂ |
Trace or Percent |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Measure precise levels of oxygen in gas cylinders |
Analyzer is used to validate the concentration of oxygen in cylinders of specialty gases |
Argon, etc., Helium, Nitrogen |
Trace |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Production of nylon, orlon, and polyesters |
Polymerization reaction. |
H₂ |
Trace |
Application |
Application Description |
Gases of Concern |
Range of Measurement |
Recommended Products |
Animal Recovery Chambers |
Oxygen therapy is frequently used for pets recovering from surgery and/or disease |
Air, Enriched Atmosphere |
Percent |
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