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Gas detectors for oxygen (O2)

Learn all about oxygen (O2) and find the right products for an oxygen gas warning system.

Oxygen (O2) and its properties

Oxygen (O₂) is an indispensable element for life on earth. As part of the air we breathe, oxygen enables energy production in our cells and is necessary for all forms of life. Oxygen is crucial for numerous processes such as respiration, combustion, water treatment and medical applications. By using our gas detection technology, it is possible to ensure that the oxygen content in the air always remains within a safe range. This protects against dangers such as asphyxiation or explosions and ensures a safe working environment.

Gas detector

I2608-O2-E

Oxygen

0 ... 25%

Data sheet

S2643-O2-E

Oxygen

0 ... 25%

Data sheet

S4005-O2-E-SIL

Oxygen

0 ... 25%

Data sheet

I2608-O2-E-DM

Oxygen

0 ... 25 Vol. %

Data sheet

I2608-O2-E-RP33-LCD

Oxygen

0 ... 25 Vol. %

Data sheet

I2608-O2-E-RP33

Oxygen

0 ... 25 Vol. %

Data sheet

I2608-O2-E-RLCD

Oxygen

0 ... 25 Vol. %

Data sheet

I2608-O2-E-LCD

Oxygen

0 ... 25 Vol. %

Data sheet

I2658-O2-E-3G

Oxygen

0 ... 25 Vol. %

Data sheet

I2648-O2-E

Oxygen

0 ... 25 Vol. %

Data sheet

I2618-O2-E

Oxygen

0 ... 25 Vol. %

Data sheet

Set point

Information on oxygen set points

SUVA set points

EU workplace exposure limits (BOELV)

Gas characteristics

Colorless: oxygen, a gas without color, cannot be perceived with the naked eye.
Odourless: It has no odour, which means it cannot be detected without special detectors.
Without taste: oxygen has no taste, which makes it even more complicated to identify.
Solubility: Oxygen dissolves well in water, especially at high pressure and low temperatures.
Density: Not quite as light as air
Combustion: Oxygen promotes the combustion of combustible materials by intensifying the chemical reaction. However, oxygen is not a fuel.
Risks: In high-pressure environments (such as diving), oxygen poisoning can occur, which can cause damage to health.
Promotes fires: High oxygen concentrations can fuel fires as they accelerate the combustion of materials.

Do you require further information?

Questions about the detection of oxygen?

DANGERS

Supporting combustion: Oxygen, an effective oxidizing agent, promotes the combustion of flammable materials. Even materials that are not flammable in normal air can easily become flammable with an increased oxygen content.
Excessive oxygen concentrations: Prolonged inhalation of too much oxygen can lead to oxygen poisoning, especially under high pressure conditions such as divers inhaling pure oxygen.
Corrosion and material degradation: A high oxygen content favors the oxidation of metals and rubber, which can lead to their destruction, especially in industrial applications.
Reactions with flammable materials: In closed systems with a high oxygen content, a leak or uncontrolled release can cause dangerous reactions with flammable materials and trigger an explosion.
Improper handling of oxygen systems: In hospitals, improper operation, defective equipment or incorrect oxygen concentrations can lead to accidents, fires or oxygen poisoning

HIGH-RISK SCENARIOS

Fire hazard: In environments with a high oxygen content, materials that do not normally burn can become highly flammable. If oxygen is released in an uncontrolled manner, this can cause fires.
Oxygen poisoning: Prolonged inhalation of oxygen in high concentrations, especially under pressure (as with divers), can lead to harmful oxygen poisoning.
Explosion in closed systems: In pressurized containers or pipelines with a high oxygen content, a leak or uncontrolled release can cause dangerous reactions with flammable substances and result in an explosion.
Destruction of materials: A high proportion of oxygen drives the oxidation of rubber and metals. This can cause them to break down – especially in industrial applications.
Insufficient or excessive oxygen supply in medical facilities: Incorrect handling or defective equipment in hospitals can lead to such situations, which can result in accidents, fires or oxygen poisoning.

Health risks and handling of oxygen

Concentration

Konzentration	Symptome/folgen
21% or 210,000 ppm	Normal oxygen content in the air
below 19.5% or 195,000 ppm	Oxygen deficiency
over 23.5% or 235,000 ppm	Dangerously high oxygen content

Concentration table only visible in landscape format.

First aid

Oxygen poisoning can damage the respiratory tract, the central nervous system and other organs. First aid measures in the event of oxygen poisoning are

1. cut off the oxygen supply:

Place the affected person in an environment with pure oxygen (e.g. in a pressurized chamber or through an oxygen mask) and stop the oxygen supply immediately.
Remove the person quickly from the area with a high oxygen concentration (e.g. from a pressurized chamber or a room with pure oxygen).

2. Air exchange:

Transport the affected person to a place with normal air (approximately 21% oxygen content) and ensure that they are breathing deeply and calmly.
If the person is unconscious, place them in the recovery position and check their breathing.

3. Breathing control:

Check whether the person is breathing normally. If they start breathing, begin resuscitation (chest compressions and artificial respiration).
If the person is unconscious and not breathing, call the emergency services immediately on 112.

4. Trigger the alarm:

If there are any signs of oxygen poisoning, especially seizures, loss of consciousness or breathing difficulties, you should call an ambulance immediately.
Provide the rescue personnel with all important information: The duration and type of environment in which the person was exposed to high oxygen.

5. Remain calm and reassure the person:

If the person is conscious and does not show any serious symptoms, reassure them and let them sit or lie down in a comfortable position. Make sure that they breathe deeply and regularly.

In case of unintentional release

In environments where the oxygen concentration is high, accidental release of oxygen can occur; this increases the risk of fire and can lead to oxygen poisoning in the event of prolonged exposure. The following are the steps for first aid in the event of oxygen poisoning:

1. Guarantee protection:

Leave the affected area immediately to ensure that all persons present are safe. As oxygen supports fires, the risk of ignition is increased.
Avoid sparks, naked flames or hot surfaces. The presence of oxygen can reduce the ignition temperature of materials and thus cause fires more quickly.

2. find and stop the source of oxygen:

If you can, find out where the oxygen release is taking place (e.g. through a leaking pipe, a defective appliance or a damaged container) and stop it.
Close all valves or shut-off devices to stop the oxygen supply.

3. Clear the room quickly:

Leave the affected area immediately, especially if it has a high oxygen content. An oxygen content of over 23.5 % (235,000 ppm) is dangerous.
Move from the high-oxygen environment to an area with normal air composition (approximately 21% oxygen).

4. Ventilation and aeration:

Ventilate by opening windows and doors whenever possible to let in fresh air and reduce the oxygen concentration. Use fans or ventilation systems to improve air circulation.
Ventilate thoroughly before re-entering the room.

5. Minimising the risk of fire:

Due to the increased risk of fire, avoid any source of ignition such as electrical appliances, sparks or open flames near the oxygen source or the area where oxygen escapes.
Fire extinguishers for fires that could be caused by the release of oxygen should be easily accessible, but should only be used if it is safe to do so.

6. Make an emergency call:

Serious incidents (e.g. if the release cannot be stopped or if there has already been a fire) require an immediate emergency call; contact the emergency doctor or fire brigade on 112.
Provide clear information about the nature of the incident (accidental release of oxygen) and the potential hazards (fire hazard, overexposure to oxygen).

7. Control of the persons concerned:

People who have been exposed to high concentrations of oxygen during release should be monitored for signs of oxygen toxicity, such as headaches, dizziness, nausea or seizures.
If someone is unconscious or having convulsions, administer first aid immediately and call the emergency services.

Oxygen is not just what we breathe – it is the invisible bond that connects life and combustion.

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