Consilium PG11 is an explosion-proof rugged point gas detector developed for detection of flammable gases and carbon dioxide in harsh environments. Built-in condition monitoring reduces unplanned stops and unnecessary downtime. The use of Optical Solid State Infra sensor technology means there is no need for oxygen to be present to detect an explosive gas, meaning this detector can also be used in fully inert (0% O₂) environments. This sensor technology does not require a diffusion barrier (sinter) which makes it very suitable for applications with a high risk of pollution such as airducts (incl. airflows), etc. Also it makes this detector suitable for extremely corrosive environments, for example when there is a presence of Sulphide and Chlorine. The PG11 gas detector is a high-end world class gas detector with an innovative design and a game changer for digitalization, modular design and realizing tomorrow’s standards. Available as point-, probe- and duct gas detector.

Key features:-

• Fast gas detection- 2 seconds to response
• Built to handle tough vibrations and extreme temperatures
• Highly stable optical design
• Calibrated for life
• Maintenance prediction and early warning
• Easy to install and operate
• Gas-free function test

Application Note

PG11 Optical Gas Detector is a high-end explosion-proof gas detection solution designed for reliable monitoring of flammable gases and carbon dioxide in harsh and hazardous industrial environments. Built with advanced optical solid-state infrared sensing technology, it delivers highly stable and accurate gas detection without requiring the presence of oxygen, making it uniquely suitable for inert environments with 0% oxygen.

One of the key advantages of the PG11 is its rapid response time of approximately 2 seconds, enabling immediate detection and improved safety in critical applications. Unlike conventional gas detectors, it does not require a diffusion barrier, allowing efficient operation in environments with high airflow, contamination or pollution, such as air ducts and process systems.

The detector is engineered for durability, with resistance to extreme temperatures, heavy vibrations and corrosive gases including sulphide and chlorine. Its robust construction ensures long-term reliability even in the most demanding industrial conditions.

Equipped with built-in condition monitoring and predictive maintenance capabilities, the PG11 reduces unplanned downtime and maintenance costs. The sensor is calibrated for life, eliminating the need for frequent recalibration while maintaining consistent performance.

Available in multiple configurations including point, probe and duct versions, the PG11 Optical Gas Detector is widely used in industries such as oil and gas, chemical processing, marine operations, water treatment and food production, where advanced safety, performance and reliability are essential.