Ultrasonic Gas Detectors

These are transducers that convert ultrasound waves to electrical signals or vice versa. Those that both transmit and receive are called as ultrasound transceivers, many ultrasound sensors besides being sensors are indeed transceivers because they can both sense and transmit. These are available with Detection Frequency Range (kHz) : 25 , 50, 100.Dynamic Range (dB) : 40, 80, 100.Area Coverage (mtr) : 2, 5, 10.

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Detailed Description for Ultrasonic Gas Detectors

Ultrasonic (acoustic) gas leak detection technology has several advantages over conventional gas sensor technologies: it does not have to wait until a gas concentration has accumulated to potentially dangerous concentrations, it does not require a gas cloud to eventually make physical contact with a sensor, and the response is instantaneous for all gas types.

The detector detects deadly gas leaks at the speed of sound without being affected by inclement weather, wind direction, leak direction or any potential gas dilution. When utilized together with advanced point gas detection and optical flame detection solutions, a complete and comprehensive safety system is ensure.

Four Multi-Directional Sensor Heads

Our quad, independent sensor heads give us the widest overall detection range and reduce the possibility of obstruction, common with a traditional single microphone design.

 

Sealed Ceramic Sensor Housing

Piezo-electric sensor heads are encased in a virtually indestructible ceramic housing and sealed against temperature, moisture and industrial contaminants.

 

Sensor Design - They Just Keep Working

Each sensor is completely free of moving parts and will not age, will not drift, and will never need replacing under normal working conditions. Maintenence free protection with proven reliability.

 

Continuous Self-test Functionality Ensures Instrument Health

Electronic self-test checks the detector every 160ms by sending an amplitude signal through the sensing circuitry, detailed analysis of the result is then performed by the system. Any compromised component or function is instantly identified and a fault signal is communicated back to the control system.

 

Field-proven Ultrasonic Sensing Principle

Our advanced acoustic sensors utilize the proven method of ultrasonic gas leak detection to protect your plant and personnel, with hundreds of installations worldwide. They are engineered to detect ultrasound generated from pressure leaks of any gas type, while ignoring background noise levels. They do not require the presence of a gas cloud to function, which makes them ideal for wide area coverage in outdoor applications.

 

Built for Extreme Conditions

Dealing with extreme heat or cold? We've got you covered with a -40°C to +85°C operational temperature range! Corrosion resistant stainless steel housing is standard, and every unit is rated IP66/67.

 

Superior Display & Interface

Bright, four character LED display provides status readout, dB level when in alarm as well as an estimated leak flow rate based on dB level detected, all feeding back to system communications via several output options.

 

Installation:

InstallationPractice

 
Site analysis and allocation of ultrasonic gas leak detectors

When allocating ultrasonic (acoustic) gas leak detectorsfor a project, the following steps are typically taken.

Pre-engineering

1) Site analysis for overall considerations about likely installation locations - normally based on dialogue between design team and Gassonic or other experienced consultants/contractors.

2) Onsite background noise survey is done when possible to obtain accurate information on the characteristics of other noise sources and machinery, which should be taken into consideration when allocating ultrasonic (acoustic) detectors and deciding the settings for each detector. Gassonic can assist doing this when required. A documentation report with easy-to-use instructions will be written.

Installation

3) Detectors are installed by the contractor.

Commissioning

4) Detectors are commissioned. This is done first by means of a customised portable test unit, the Gassonic 1701, which verifies that the detector is in calibration. Secondly, the detection coverage of the entire system is verified by means of simulated gas leaks at the pre-defined performance standard.

5) Operation can begin.

 Applications:


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