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Oldham OLCT Infrared Gas Detector

Oldham OLCT Infrared Gas Detector

The Oldham OLCT Infrared Gas Detector is specifically designed for monitoring flammable gases or CO2 concentrations in the surrounding air, with potential applications in the marine industry. It runs on 24 Vdc power and provides a standard 4-20 mA analogue output that is proportional to the detected gas concentration. It offers a non-intrusive calibration feature, allowing calibration to take place in hazardous areas without the need to declassify the zone. This infrared gas detector is highly reliable and holds SIL2 capability in accordance with the EN 50402 standard, boasting a remarkably low probability of failure on demand (PFD) of 0.0016. With a mean time between failure (MTBF) of 28 years, it is well-suited for demanding environments such as refineries, onshore and offshore installations, LPG filling stations, and compressor stations.

The IR technology employed in this gas detector offers several notable features. It delivers a fast response time, allowing for quick detection and response in critical situations. It can operate in oxygen-deficient atmospheres, providing accurate measurements even in challenging conditions. Furthermore, the non-contact measurement capability eliminates the need for altering optical elements, ensuring minimal maintenance requirements. When paired with the OLCT 60 or the OLCT 80 transmitters, the Oldham OLCT Infrared Gas Detector enables users to visualize gas concentrations at the point of detection, further enhancing its usability and effectiveness. Additionally, the detector’s double sources and four-beam configuration enable compensation for dirty optics and eliminate long-term drift caused by source and optical detector ageing.

The OLCT IR gas detector represents a pinnacle of accuracy and innovation, particularly suitable for various industries, including the marine sector. By utilizing optical detectors that continuously measure the intensity of infrared light sources, this advanced technology ensures precise and reliable gas detection on ships, offshore installations, and other marine applications. A standout feature of the OLCT IR is its non-intrusive calibration system, which allows for easy calibration without needing to open the housing. This feature is especially beneficial in the marine industry, where safety and compliance are paramount. Operators can calibrate the detector within explosive areas while adhering to strict regulations, ensuring optimal performance even in hazardous marine environments.

Reliability is crucial at sea, and the OLCT IR gas detector delivers on this front. Equipped with a heating mechanism for the mirror and window, it prevents misting or icing of the optics, ensuring uninterrupted operation in harsh weather conditions commonly encountered in marine environments. This reliability ensures that gas detection remains accurate and dependable, providing vital information for prompt action and ensuring the safety of crew and vessel. Furthermore, the OLCT IR maintains consistent sensitivity even in the presence of high gas concentrations. This is especially relevant in the marine industry, where the potential for hazardous gas leaks exists. The detector’s ability to accurately detect and monitor gas concentrations, even in challenging marine conditions, enhances safety measures and enables swift response to potential incidents.

When paired with the OLCT 60 or the OLCT 80, the OLCT IR gas detector offers additional functionality, such as a display and internal relays. This feature can be particularly useful in marine applications, allowing for real-time visualization of gas concentrations and facilitating integration with existing monitoring and control systems onboard ships and offshore platforms. Furthermore, the infrared transmitter of the OLCT IR gas detector is designed to deliver reliable and accurate performance in demanding environments. It is equipped with a detector that is resistant to poisons and corrosion, ensuring its durability and longevity even in harsh conditions commonly encountered in industrial settings.

The OLCT IR gas detector holds SIL2 capability, as per the standards EN 50402 and EN 61508. This certification attests to its high level of safety and reliability in critical applications. It meets stringent requirements to ensure proper functioning and adherence to safety regulations. With a mean time between failure (MTBF) of 28 years, as determined by INERIS CGR 7448, the OLCT IR gas detector demonstrates exceptional reliability. This extensive operational lifespan provides reassurance to users, minimizing downtime and maintenance costs.

Calibration is a crucial aspect of gas detection equipment, and the OLCT IR gas detector offers a non-intrusive calibration feature. This means that calibration can be performed without opening the housing, ensuring compliance with safety regulations, especially in hazardous areas. The convenience and efficiency of non-intrusive calibration save time and effort for operators. In addition to its resistance to poisons, corrosion, SIL2 capability, long MTBF, and non-intrusive calibration, the OLCT IR gas detector incorporates fail-safe technology. This technology is designed to enhance safety by ensuring that in the event of a failure, the system defaults to a safe state or activates a predefined safety response. 

In summary, the OLCT IR gas detector combines state-of-the-art technology, non-intrusive calibration, and reliable detection to meet the stringent requirements of the marine industry. Its accurate and dependable performance, along with its suitability for hazardous marine environments, make it an invaluable tool for ensuring safety and compliance at sea.

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