Gas Detection 21 Ultrasonic Gas Leak Detector Features HART Communications Protocol
The Gassonic Observer-H Ultrasonic Gas Leak Detector from General Monitors (USA) is ideal for gas leak detection in pressurized systems. The new Gassonic Observer-H features HART communications, Modbus with single and block transfer modes, Emerson AMS Intelligent Device Manager support, and event logging. The Observer-H is ATEX, IECEx, FM and CSA hazardous area certified and SIL 3 suitable.
The Gassonic Observer-H detects gas leaks by sensing the airborne ultrasound emitted from leaking gas at high pressure. It is suitable for gas detection in open, well- ventilated areas, where traditional detection methods may be unsuitable or dependent on ventilation. 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 Gassonic Observer-H’s wide coverage zone makes it possible to supervise areas up to a 20 meter radius, for the detection of leaks as small as 0.1 kg/sec., with only one device.
Rugged and designed for failsafe operation, the Gassonic Observer-H features robust microphone technology with an advanced stainless steel microphone. The detector also offers the Senssonic™ integrated acoustic self-test, which verifies the integrity of the instrument’s electric circuit and microphone every 15 minutes. It features stainless steel, AISI 316L explosion-proof housing, offering corrosion resistance in the harshest environments.
The Gassonic Observer-H features a sophisticated high pass filter to remove frequencies below 25 kHz, effectively eliminating interference from audible sound. At the same time, 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 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.
Reader Reply Card No. Portable Biogas Analyser Launched at the ADBA Show
Visitors will see, for the first time at the ADBA show, the new Biogas 5000 portable biogas analyser fromGeotech (UK) which is quick and easy to use. Accurate to +/-0.5% for methane (CH4) and carbon dioxide (CO2), readings are repeatable for identification of changes in gas mix. Raw hydrogen sulphide (H2S) can be measured up to 10,000 ppm with the same sensor as low-H2S de-sulphurised biogas.
The user-installed Geotech GA3000 fixed biogas analyser is reliable and well-supported. UK installations include AD research facilities, waste water
treatment, food and farm waste treatment. Standard gases are CH4, CO2 and oxygen (O2), with optional H2S monitoring offered for raw and processed biogas. Geotech has 200 fixed biogs analysis systems in use worldwide, with over 99% reported up time. Vital for CHP restarting and protection against sudden gas level changes, biogas monitoring equipment can pay back in days.
Anaerobic digester (AD) plant biogas leaks can be easily detected with the Geotech TDL-500 laser gas leak detector, which has almost instant sensitivity to CH4 at 1 ppm.
Reader Reply Card No.
New Mobile Gas Monitoring Perimeter System
Oldham (France), an Industrial Scientific recently introduced the Mobile Perimeter System (MPS) IV. The MPS IV is a mobile gas monitoring platform that can be rapidly deployed for temporary or remote gas detection applications. It is solar powered, has onboard strobe and siren, and can be configured with wireless communication, making it a truly stand-alone mobile gas monitor.
“The MPS IV provides a unique solution for our customers who need to monitor for potentially dangerous gas levels in areas where conventional wired gas monitors are difficult or costly to install,” says Tom Cunningham, President, Oldham.
The MPS IV monitors up to four gas readings simultaneously and can transmit those readings wirelessly back to a primary alarm station. The monitoring platform is configurable with a convenient tripod mount, or it can be wall mounted, pole mounted or mounted using available magnetic mounting brackets
Reader Reply Card No.
New Addition to UOP’s Schedule A
H2scan Corporation, provider of the most accurate, tolerant and affordable hydrogen leak detection and process gas monitoring solutions for industrial markets, today announced that they have been added to Honeywell UOP’s Schedule A. This concludes seven years of testing and validation of H2scan’s technology at customer sites and pilot plants, and follows on the Company’s late 2010 announcement to jointly market low-cost, high-accuracy hydrogen analysing systems alongside UOP.
“Being added to the Schedule A is a significant milestone for us, especially as the only vendor on the list to offer a complete hydrogen analyzer solution with the strongest return on investment,” said Dennis Reid, H2scan’s President & CEO. “We recognise the additional exposure and sales leads this brings us and look forward to working closely with UOP going forward.”
Reader Reply Card No. 70 69 Fixed Gas Detection Systems
For continuous monitoring of combustible, toxic gases and oxygen. Complete range of sensors / transmitters ATEX approved DNV and RINA marked products for marine applications.
Explorer Box 2ch 2 channels wall mount control unit with touch display
68 67
GasPoint Stand alone single gas detector
GasScreen 160
Control Unit for 16 channels 4-20mA and/or 256s points RS485
Eexd Gas Detectors For flammable gases
(%LEL), Oxygen (% O2), and toxic gases (ppm).
Via Pietro Chiesa, 25 r. - 16149 Genova
Tel. (+39) 010-469.56.61 r.a. • Fax (+39) 010.642.42.05 email:
info@recomind.com • web:
www.recomindustriale.com
Reader Reply Card No. 71
www.envirotech-online.com IET May / June 2012
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