Amperometric Sensor for Gas-Phase Oxygen

Product Description

Amperometric Oxygen Gas Sensors

A tool used to gauge the amount of oxygen (O2) in a gas stream is an amperometric sensor for gas-phase oxygen. It operates by electrochemically determining how much oxygen is reduced at the electrode surface.

The amperometric sensor normally consists of a counter electrode made of a conductive material, such as graphite, and a sensing electrode made of a material that catalyses the reduction of oxygen, such as platinum or gold. The decrease of oxygen at the sensing electrode produces a current that the sensor measures after applying a voltage between the two electrodes. The quantity of current produced is inversely proportional to the oxygen content of the gas stream.

Amperometric sensors for gas-phase oxygen provide great sensitivity and accuracy as a benefit. They are capable of measuring a wide range of concentrations, from trace quantities to almost 100% oxygen, and can detect oxygen concentrations as low as parts per billion (ppb). They are also simple to use and reasonably priced.

In industrial and laboratory contexts, amperometric sensors for gas-phase oxygen are frequently used to track oxygen levels in processes including gas storage, fermentation, and combustion. They are also utilised in medical procedures to check patients' oxygen levels, including respiratory treatment and anaesthesia.

It is important to keep in mind that amperometric sensors might lose accuracy due to their sensitivity to other gases and environmental variables, such as temperature and humidity. As a result, accurate calibration and maintenance are crucial to ensuring dependable and accurate results. 

Oxygen control for your gas applications

• In process gas stream or tank applications, amperometric oxygen gas sensors provide reliable, real-time measurements without the need for gas sampling or conditioning.
• Easy in-situ installation directly in the tank or vessel
• No cumbersome sampling system needed
• Easy two-minute maintenance and calibration