The advanced Gassonic Observer-H Ultrasonic Gas Leak Detector from General Monitors has obtained approval through the Bureau Veritas (BV) Marine Division under the rules for the classification for steel ships.

The Gassonic Observer-H Ultrasonic Gas Leak Detector is ideal for gas leak detection in pressurized systems. The Gassonic Observer-H features HART communications, Modbus with single and block transfer modes, Emerson AMS Intelligent Device Manager support, and event logging. In addition to BV certification, the Observer-H is ATEX, IECEx, FM, and CSA hazardous area certified, and SIL 3 suitable.

The Gassonic Observer-H is suitable for gas detection in open, well-ventilated areas, where traditional detection methods may be unsuitable or dependent on ventilation. It detects gas leaks by sensing the airborne ultrasound emitted from leaking gas at high pressure. Since the gas leak detector responds to the source of a gas release rather than the dispersed gas, it is unaffected by changing wind directions, gas dilution, and the direction of the leak.

The versatile Gassonic Observer-H can be configured with an analog output or Modbus or HART communications to provide complete status and control capability in the control room. The Modbus and HART data can also be used for predictive maintenance and to enable asset management and process improvement.

The Gassonic Observer-H detects leaks at a frequency range of 25-70 kHz at a dynamic range of 58-104 dB. Detection coverage varies from 13-20 meter radius in very low noise areas (<58 dB), 9-12 meter radius in low noise areas (<68 dB), to 5-8 meter radius in high noise areas (<78 dB). Such distances are defined for a methane gas leak of 0.1 kg/s.

About General Monitors and Gassonic

Founded in 1961, General Monitors is a leading manufacturer of gas and flame detection monitoring instruments.  The company is third-party certified to ISO 9001:2008 requirements. Today, Gassonic A/S is part of General Monitors, and in September 2010, General Monitors and Gassonic were acquired by MSA. Gassonic was the first company to develop an ultrasonic gas leak detector over ten years ago and has thousands of ultrasonic gas leaks detectors installed in the field.

About Bureau Veritas

Bureau Veritas is a trusted certification organization committed to process efficiency and transparency, product and system safety and environmental care. The Bureau Veritas Marine Division carries out design reviews, surveys and inspections to assess the conformity of marine equipment and materials in compliance with BV rules and international regulation. Approval to the BV NR467 standard for steel ships assures General Monitors’ customers that the Observer-H has undergone third-party testing and is compliant with international regulations, ensuring product quality and safety and facilitating trade.