Gas Detection - UK Focus vii Gas Detector Awarded CE Mark Certification
Detcon’s (USA) Model DM-100 low power gas detector recently received CE Mark certification to ensure compliance with European Union health and safety requirements. The durable, high performance gas detector underwent stringent conformity assessment testing by third-party agency Professional Testing Incorporated and is now approved for use in Europe and other countries that require the CE Mark.
The Model DM-100 is two-wire loop powered with display and uses electrochemical sensor technology to monitor a wide range of toxic gases. The device features electronics that are fully encapsulated in an electro-polished 316 stainless steel housing and a newly designed lower housing that has been upgraded from plastic to stainless steel. Plug-in field replaceable sensor cells are fitted with large surface area gold-plated pins that help reduce the effects of corrosion in harsh industrial environments.
Model 100 sensors provide a linear 4-20mA signal and feature intelligent electronics and comprehensive fault diagnostics. The device is extremely simple and affordably priced, and can be customised with additional accessories that include wireless communications, a loop-powered digital display, Remote Alarm Module (RAM), HART, and a Modbus RS-485 interface.
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Gas Filtered to Avoid Ammonia Salt Damage
Formation of ammonia salts, typically taking place in DeNOx processes, block and damage lines. As a countermeasure, Bühler Technologies, distributed by DRM Technic (UK), has developed a DeNOx probe, which combines their reliable gas probe technology with integrated salts and aerosols washing. Sample gas enters the probe, which is heated to maximum 280°C, filtered and subsequently directed downwards into a glass vessel containing glass beads. The formed condensate including the ammonia salts are removed via a peristaltic pump whilst the gas continues to the heated line. Due to the removal of ammonia, standard gas conditioning equipment can follow thereafter. A weather protection housing and frost protection are included as standard to permit external operation.
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Wireless Technology Transforming Fixed Point Gas Detection
Fixed gas detection systems now feature some of the most advanced technologies available. They offer numerous benefits that have improved the functionality of the gas detection system, improving their reliability and offering increased confidence in their purpose of offering protection against.
Today, wireless communication is one of the most recent technologies that is transforming fixed point gas detection.
Wireless fixed point gas detectors are strategically placed in locations where there is a danger of a potential build up of hazardous gases. The detectors send a signal to the control system to alert the facility and people working nearby that the area is no longer fully safe to operate in.
One of the main benefits of wireless technology is that it greatly reduces the amount of disruption during installation – providing an opportunity for faster and more efficient installations.
a1-cbiss is an Oldham distributor for its line of fixed gas detection systems. a1-cbiss is excited to offer Oldham’s newest wireless system, the OCLT80. Ray Eaton, Installation Manager, a1-cbiss, says, “With the elimination of communication wires and cables, we can greatly reduce the installation project time, subsequently reducing costs that can be passed onto our customers”.
Designed to meet the demanding needs of large industrial companies, Oldham's OLCT 80 Wireless is a major achievement in terms of technical performance and cost optimisation. The wireless version of the OLCT 80 has a maximum range of 3km, line of sight, making it ideal for detecting gases in sites that are difficult to hardwire.
The OLCT 80 Wireless is available as a remote version, with flameproof or intrinsic safety approved sensors depending on gases to be detected.
Available with infrared, catalytic, electrochemical or semiconductor sensors, the OLCT 80 detects: Most combustible gases and vapours; Refrigerants; Oxygen; Toxic Gases.
The new XP IR infrared sensor detects combustible gases or carbon dioxide.
The OLCT 80 is a triple head gas detector for use in explosive areas, offering 3 built-in relays. The OLCT 80 has 4-20mA and RS 485 outputs for loop connection, and as a result is ideal for reducing wiring costs.
With its infrared remote controller and its on-board display, the OLCT 80 allows non- intrusive one-man calibration, which eases potential maintenance issues.
The OLCT 80 has a large range of sensors and can operate as a standalone unit, which is a huge advantage in an ATEX area.
The new wireless version of the OLCT 80 gas detector will be available to purchase from summer 2013. If you’re attending Offshore Europe, September, come to stand 1F62 and see the wireless OLCT80 in action, communicating between our stand and Industrial Scientific Oldham’s stand 1G64.
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www.envirotech-online.com IET Annual Buyers Guide 2013
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