The advanced Gassonic Observer-H ultrasonic gas leak detector from General Monitors has been approved by the Bureau Veritas Marine Division to the BV NR467 standard for steel ships.
Bureau Veritas is a trusted certification organisation 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 to BV rules and international regulations. 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.
Ideal for gas leak detection in pressurised systems, Gassonic Observer-H ultrasonic gas leak detectors feature 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, making them ideal for drilling rigs and platforms, FPSO, and oil and gas production platforms.
The Gassonic Observer-H is suitable for gas detection in open, well-ventilated areas, where traditional detection methods may be unsuitable. Detecting gas leaks by sensing the airborne ultrasound emitted from leaking gas at high pressure, the gas leak detector responds to the source of a gas release rather than the dispersed gas, and is therefore unaffected by changing wind directions, gas dilution, and the direction of the leak.
The Gassonic Observer-H’s wide coverage zone makes it possible to supervise areas up to a 20m radius for the detection of leaks as small as 0.1 kg/sec., with only one device.
Designed for failsafe operation, the rugged Gassonic Observer-H includes an advanced stainless steel microphone. Features also include the Senssonic integrated acoustic self-test, which verifies the integrity of the instrument’s electric circuit and microphone every 15 minutes, and stainless steel AISI 316L explosion-proof housing, offering corrosion resistance in harsh environments.
A sophisticated high pass filter removes frequencies below 25 kHz, effectively eliminating interference from audible sound. Setting the alarm trigger level above the ultrasonic background noise ensures the detector accurately detects gas leaks. The Observer-H is equipped with a 3-digit LED display and an event logging function that stores fault, sound check, calibration, and alarm event history.
The versatile Gassonic Observer-H ultrasonic gas leak detector can be configured with an analogue 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 enable asset management and process improvement.