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New ultrasonic gas leak detector from MSA

MSA has developed a new ultrasonic gas leak detector with Artificial Neural Network (ANN) intelligence and real-time broadband acoustic sound processing technology.

Gassonic Observer-i is a pioneering new gas leak detection system that achieves an unprecedented suppression of false alarms, according to MSA.

ANN technology

With the incorporation of ANN technology, the breakthrough Gassonic Observer-i detector makes it possible to fully analyse the sound spectrum above 12 kHz.

The ANN algorithm has been ‘trained’ to automatically distinguish between unwanted acoustic background noise and dangerous gas leaks.

MSA Africa fixed gas and flame detection product manager Robbie Taitz says the ANN technology provides a broader leak detection range, which also increases sensitivity to smaller gas leaks without interference from unwanted background noise.

“It enables the GASSONIC OBSERVER-i to be installed without time consuming training sequences, and provides industry-leading detection distance, with unprecedented suppression of false alarms.”

Features of the detector

The Gassonic Observer-i features the patented SENSSONIC self-test function that checks the device’s electrical integrity and microphone every 15 minutes and ensures the detector is operational at all times.

Taitz says the detector is ideally suited for numerous applications, ranging offshore oil and gas platforms, to refineries, underground gas storage facilities and downstream chemical processing plants.

Benefits of technology

The detector is self-adaptive, therefore it requires no alarm set points to be configured, nor do alarm set points need to be adjusted if background ultrasound were to increase or decrease over time.

Ultrasonic gas leak detectors (UGLD) are used in pressurised gas applications to complement conventional gas detection methods.

In outdoor or ventilated locations, conventional detectors can miss gas leaks due to wind conditions, gas dilution, or leak directionality. To compensate for such situations, ultrasonic gas leak detectors pick up gas leaks by responding to the airborne ultrasound instead of relying on physical contact between the gas and the sensor element.

This capability significantly improves total speed of response to dangerous gas leaks.

Designed to support large plant distributed control systems, the GASSONIC OBSERVER-i detector features HART and Modbus communication compatibility.

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