50 Gas Detection
New Gas Sensors Eliminate Cross-Sensitivity to Acid Gases
MEMBRAPOR (Switzerland) is continuously upgrading and advancing its product line. One of the latest additions are PH3
and SiH4 S, SO2 and NO2 gas sensors with
filters that enhance the specificity and eliminate the cross-sensitivity towards other acid gases such as H2
. Also, a hydrogen compensated
CO sensor for very high concentrations was introduced recently. The new CO/SF-10000-4E-S is based on the well established 4 electrode setup that
allows the measurement of CO from 0 till 1% with H2 concentrations in the same magnitude. The signal compensation of the interfering hydrogen enables accurate monitoring of carbon monoxide in flue gas cleaning systems.
While launching new types of sensors MEMBRAPOR is always driven to improve continuously the well-established ones, especially regarding long-term stability and reliability. Latest developments could be achieved in various application fields with different approaches: The highly sensitive NO2
, O3 and SO2
air monitoring. Further, enhanced electrodes could improve the long-term performance of H2 concentrations.
sensors are equipped with an improved mechanical protection, underlining one of MEMBRAPOR’S focus on ambient S sensors in compact houses and H2
New Guidance on Gas Detection at WWEM 2016
sensors for high
The sensor housing of the miniature-size (4-series) was redesigned. The results of the performed stress tests have exceeded the expectations. The new high-tech housing is a result of our ongoing research activities.
MEMBRAPOR’S product range includes now 270 sensors for 21 gases covering various measurement ranges.
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39088pr@reply-direct.com Advanced Multifunction Gas Detection System
The GALILEO SMS (SIL Multisystem), from Sensitron (Italy), is an advanced multifunction gas detection control panel designed to comply with the SIL (Safety Integrity Level) requirements, according to the European Standard EN 50402 and IEC 61508 on Functional Safety. The functional safety is aimed at supervising and managing the behaviour of an overall system in case of failures.
To assure a full redundancy, the control unit’s main board is designed around 2 powerful microprocessors that communicate to each other the monitored data, ensuring the complete availability of all main board functions even in the case of a failure in one microprocessor. A broad range of self-testing facilities are implemented to detect and localise possible faults.
The redundancy offered by every module being part of the system, added to the possibility to communicate with remote input/output modules via a redundant closed BUS, makes this system comply with the Functional Safety requirements up to SIL3.
The GALILEO SMS consists of a control unit, used for monitoring and controlling, connected to an optional number of Analogue Input Modules (AIM), LOOP modules and RELAY modules.
The system will be connected in two digital RS485 (EIA-485) type closed loops capable of accommodating a maximum of 256 gas detectors connected as addressable gas detectors type SMART3G or SMART3 “S” connected via 32 input loop modules or analogue 4-20mA detectors connected through 8-input AIM (Analogue Inputs Modules), and a maximum of 520 relay outputs connected as 512 programmable relays on the Relay Outputs modules (8-16 relays module, basic and extended respectively).
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Gas detection has always been an important component of the WWEM events, but organiser Marcus Pattison says: “Following the publication of important new guidance on confined space entry and a new standard for toxic gas detectors, the Gas Detection Zone at WWEM 2016 will be busier than ever.
“Past events have shown that the Gas Detection Zone is hugely popular with health & safety managers and staff that have to work in confined spaces or areas where there is a possibility of exposure to toxic or explosive dusts and gases.”
WWEM 2016 will take place in Telford on 2nd and 3rd November, incorporating Conferences, Workshops and an Exhibition covering water, wastewater and environmental monitoring. Attracting delegates from around the world, the WWEM events have become important diary dates for anyone with a professional interest in environmental and occupational safety testing and monitoring.
The Council of Gas Detection & Environmental Monitoring (CoGDEM) is a WWEM partner. CoGDEM Director Leigh Greenham says: “We are delighted to once again participate in the development of the hugely popular WWEM Gas Detection Zone, which will provide visitors with the chance to see innovative new gas detection instruments; some of which will be displayed for the first time.
“WWEM 2016 will also provide an opportunity for visitors to attend free workshops and seminars which will be relevant for engineers and managers from utilities and from processing and manufacturing industries. Visitors to the Gas Detection Zone will improve their knowledge of the latest standards, guidance and technologies relating to all forms of gas detection. Subjects covered will include: confined space entry; new standards and guidance for toxic gas detectors; the selection of apparatus; new gas sensor development; all complimented by a variety of topical case studies.”
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5659ad@reply-direct.com www.envirotech-online.com IET Annual Buyers’ Guide 2016/17
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