WE300 Solar Radiation Detector

Global Water, an ITT Analytics company, manufacturer and distributor of water and weather monitoring equipment introduces the WE300 Solar Radiation detector for extremely accurate solar radiation measurements. These preciseness solar radiation detector or pyranometer includes a bubble level, leveling screws, and mounting hardware for easily installation. The WE300 applies a high stability silicon photovoltaic (PV) detector (blue enhanced) to get accurate radiation readings. The sensor accepts a 4-20 mA output signal and is attached to 25ft of marine class cable, with distances up to 500 ft available upon request.

Applications include climate analyzes, energy cycle studies, solar panel monitoring and power estimation, photobiological research, and more.

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The 700 Bench Meter By Eutech Company

The 700 bench meter series by Eutech (Singapore) combines simple, stress-free meter process with the largest show of any bench meter in it is class, more than double the size of our best-selling 510 series. The meters features a small footprint, multi-position electrode arm, fast reference guide, splashproof key pad and many more. The 700 meters embrace Eutech signature characteristics of easy, reliable and non-rational instruments. Add the benefits of high accuracy, auto temperature recompense, non-volatilisable memory and auto-buffer recognition and measurement become simple.

The Eutech 700 series offers five meters with the features you need for simple. Affordable measurements of pH/ORP, pH/ORP/Ion, Conductivity/TDS, Dissolved Oxygen and the pH/ORP/Conductivity/TDS all with C/F temperature.

source : Environmental Technology newspaper

The Long-Term Effect of Global Warming Will Change the World

This is 5 (five) consequences of global warming in the long-term :

" 1. Great Barrier Reef may be gone in 20 years

The Great Barrier Reef will be so degraded by warming waters that it will be unrecognizable within 20 years. Charlie Veron, former chief scientist of the Australian Institute of Marine Science, told The Times: “There is no way out, no loopholes. The Great Barrier Reef will be over within 20 years or so.” Once carbon dioxide had hit the levels predicted for between 2030 and 2060, all coral reefs were doomed to extinction, he said. “They would be the world's first global ecosystem to collapse. I have the backing of every coral reef scientist, every research organization. I've spoken to them all. This is critical. This is reality.

2. Amazon Rain Forest may turn into a desert

Teeming with millions of species and one-fifth of the world's fresh water, the Amazon is the world's largest tropical rainforest. However, global warming and deforestation are reversing the forest's role as a carbon sink, converting 30-60% of the rainforest into dry savannah. Projections show the forest could disappear completely by 2050.

3. Sahara Desert may become green

cientists are seeing signals that the Sahara desert and surrounding regions are greening due to increasing rainfall. If sustained, these rains could revitalize drought-ravaged regions, reclaiming them for farming communities. This desert-shrinking trend is supported by climate models, which predict a return to conditions that turned the Sahara into a lush savanna some 12,000 years ago.

4. Hurricanes may become more devastating than Katrina

It has not been determined whether Katrina was linked to global warming. But there are indications that global warming will produce more Category 5 hurricanes --and Katrina was only Category 4 when it hit Louisiana. Hurricanes derive their power in part from warm water, and so forecasting models show future hurricanes becoming more severe as sea surface temperatures rise. Global warming also makes hurricanes more destructive by raising the sea level, which leads to more serious coastal flooding. (According to the EPA, a two-foot rise would swallow a chunk of the U.S. bigger than Massachusetts.)

5. London may disappear underwater by 2100

It isn't only reefs and low-lying islands that are under threat from global warming. In fact, a major threat is for those large urban areas which are at risk of eventually being submerged underwater. This is caused by a change in sea levels that occurs when global warming takes place, resulting in coastal cities being destroyed by flooding. Dozens of the world's cities, including London and New York, could be flooded by the end of the century, according to research which suggests that global warming will increase sea levels more rapidly than was previously thought. London is one of the major world capitals at high risk of this type of flooding, as depicted in this shot from the 2007 movie Flood. Scientists say that the city could be under water as early as within the next one hundred years. "

source : here


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4500Ti Titanium Pressure Transducer

Geokon’s (USA) Model 4500Ti Titanium Pressure Transducer is designed specifically for use in highly corrosive environments such as landfills, leachates and in other critical areas where long-term survivability is essential. All exposed surfaces are made from titanium, and an internal thermistor provides for simultaneous temperature measurements. Available in ranges up to 7.5 MPa with +/- 0.1 % FS accuracy. Combined with Geokon’s wireless dataloggers, these pressure transducers can provide remote data aqcuistion over local area networks and with data made available over the internet in real time.

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464 Electronic Pump Control For Groundwater

Solinst (Canada) unveils their newly designed Model 464 Electronic Pump Control Unit. This tool is made to work easily with pneumatic pumps and obtain representative groundwater samples during monitoring programs such as site assessments, contaminant detection, site characterizations, remediation projects, compliance monitoring, etc. The Model 464 is designed to help field technician meet the sampling protocols of regulators worldwide, including the U.S. EPA. The Controller allows faster purge rates, as well as precise low flow control to ensure a representative sample at 100 ml/min or less when sampling for Volatile Organic Compounds ( VOCs ).
The Control Unit outputs 125 psi and runs on 4 AA alkaline batteries that can last up to 100 hours of normal use. The Model 464 also has a manual mode that allows user operate the Control Unit without batteries, using only a compressed air source.
These convenient boxes are rugged, dependable and suitable for all environments. Tubing is supplied and quick-connect fittings allow instant attachment to pumps, dedicated pump well caps, portable pump reel units and to an air compressor or compressed gas source.
The Control Unit is excellent to use with the company’s own model 407 Integra Bladder Pumps and Model 408 Double Valve Pumps. The Model 464 Electronic Pump Control Unit is available for purchase.

www.analox.net New Sensor Technology Website Launched

A visit to www.Analox.net will be a more interactive and varied experience as Analox Sensor Technology launches its new Website. As Analox continues to expand it’s products in five very different fields, and develop markets around the world, so it has update its website to give visitors more relevant information both about the products and the field in which they are used.

Michelle Morley, Marketing Manager for Analox sensor technology (UK), said: when you visit our website, you will now find information geared towards the niche market you’re interested in, and we’re hoping you’ll take the opportunity to get in touch with us, to interact. With links through to a range of blogs, tweeting, films on youtube, social media and more, we’re creating each section of the site as an information portal, and customers are invited to share their news and views. We’ll be uploading more of your amazing diving photos, more of diary room entries from exhibitions and industry news which we know will be of interest and relevance to our customers.

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High Accuracy HDI Pressure Sensors

Sensortechnics (Germany) HDI sensors measure absolute, differential or gage pressure in various ranges from 10 mbar up to 5 bar. The HDI series features 3 V supply versions which are ideally suitable for battery powered applications, e.g. in portable or handheld devices. HDI pressure sensors perform precision digital signal conditioning and achieve ultra high accuracies with an excellent Total Error Band ( TEB ) better than ±0.5% FSS over a temperature range of 0…+85 C.

The HDI series provides digital interface with I≤C bus protocol and analog 0.5…4.5 V output signals at the same time therefore allowing customers to build up a redundancy functionality for safety critical applications. The sensors are intended to be used with air and non-corosive gases and offer various unidirectional, bidirectional or barometric calibration as well as different accuracy classes. Miniature SMT and DIP housings allow for space-saving PCB-mounting and maximum OEM design flexibility. A wide selection of sensor configurations are available from stock at Sensortechnics. All HDI pressure sensors can be modified according to customer specific requirement, e.g. with respect to pressure range, resolution, accuracy and internal digital settings.

Due to the wide selection of different sensor configurations Sensortechnics is able to offer customers the best suitable sensor with an ideal coast/performance ratio. Typical applications of the HDI pressure sensors include medical devices, instrumentation, environmental controls and HVAC.

Emergency, Oil Reserves will be Exhausted within 90 years

Oil will run out within 90 years before alternative energy is found, according to new research from the University of California, Davis. These predictions were published online on November 8 in Environmental Science & Technology Journal. This research is based on the long-term theory, this theory said : investor is the best estimator to explain why and when alternative and renewable energy technology can be used.

"Our results show that takes a long time before alternative fuels that can be updated can survive, at least from a market perspective," said study leader, Debbie Niemeier, professor of civil and environmental engineering at the University California (UCLA), Davis.

Niemeier and team, Natalya Malyshkina one of Niemeier team's plans to create a new device that will help policy makers set targets are realistic about the resilience of the environment and evaluate the progress made to those goals. Two key research of this new theory is the capitalization market (based on share price) and dividends from oil companies owned by government and alternative energy companies. Other analysts have previously used similar equations to predict in finance, politics and sports.

Good investors tend to put great efforts in collecting, processing and understanding information relevant to future cash flows paid by these securities," said Malyshkina.
As a result, the market assessment in the future predictions represent the largest part of investors that tend to be relatively accurate.

Niemeier said the results of this latest study is a warning against the target of renewable fuels now are not ambitious enough in preventing the community, economic development and natural ecosystems harmed because of this.

We need a stronger policy support to encourage the development of replacement technology, "he said. We need a stronger policy support to encourage the development of replacement technology," Niemeier said.

source : here translate Indonesian to english language.

Computer Recycling Green IT Expo in London, UK

Richard A Johnson recently attended the Green IT Expo in London. The aim of the conference? To showcase Green solutions to IT issues, most notably energy consumption and environmentally concious design. Here is Richards story when he attended the Green IT Expo

"Exhibiters at the conference ranged from Very PC, with their amazingly low powered desktop computers (24 watts per machine is more efficient than a laptop) to SIMMS recycling, a global recycler dealing directly with other mainstream recyclers. However, of most interest were the IT recycling companies present. As a representative in the same field, I thought it prudent to use them as a sounding board for issues I currently have with the UK's Computer Recycling industry. In effect, here's the conclusion that reflects every single recognised computer recycling company in the UK (IT-Green®, CDL, ICEX):

A combination of online marketing, Google Places and cheap (re-use) environmental licenses has given rise to small localised "recyclers" springing up throughout the UK. Potential business related clients are opting for the cheapest possible solutions when trying to recycle their computers and this in turn is leaving them open to the possibility of Brand damage, legal action and data security breaches. Recognised, professional recyclers have to of course maintain overheads that protect clients from the reality of security breaches and environmental protection and these simply are not in place with small operators that have been set up to take advantage of the WEEE directive. With less stringent environmental controls and reporting systems, those operating under section 50 exemptions are more likely to sell on waste electronics to exporters, who as highlighted by the Environment Agency have been assoiciated with organised crime.

As highlighted by Greenpeace in 2009, some 50 million tonnes of WEEE were dumped on developing countries and as I've said in previous posts, this is causing major problems, including deaths among children from lead poisoning......... "

See Full Article : Here

The Flora And Fauna Of Greek Island Crete

The Greek island of Crete does not only carry the secrets of an ancient civilization, but also puts a very rich flora and fauna on display for those who may be seeking to spend time in the nature's arm. The island is surrounded by the Mediterranean Sea waters and carries a weather that resembles with the Mediterranean and the North African both. The temperature mostly remains mild in the low-lying areas while the snowfall rarely takes place, barring some high altitude cases. The island's beaches are famous for their raw beauty and the sea resorts made along them. On the other hand, mountains are there to be trekked on, and various tour operators and hotels in Crete will offer packages for these kinds of events.

Spring brings up the best time for the Cretan flora and fauna to be explored when there is hardly any snowfall around and the rainfall has also died down. Obviously this also means the start of the tourism season in the island. The fields laden with red poppies and the air full of the lemon and orange flavors may leave you mesmerize in these days. Among many hundreds of the flora species found across the island, at least 130 wild flowers and herbs are regarded unique to it. Cretan holidays may be planned around these natural gifts provided one carefully decided about their tour plans. Often hotels in Crete will help you out in deciding about your nature-centric adventures.

The ravines and the mountain slopes are the places where one should look out for the rarest of plants found on this island. These include Organium dictamus, an herb made popular by the likes of Hippocrates and Aristotle for its medicinal use. The herb grows on steep slopes in the rocky mountains of Crete, where they won't easily be discovered by any human being. As a result, the men used to trek up and gift the herb as a sign of love to their partners in the ancient times. The name Organium dictamus comes from the mount Dikty, where Zeus, the mythological king of the Greek gods, was famously born. The evergreen Cretan Plane Tree is yet another unique Cretan species to be looked closely at. Unlike the other plane trees, which are deciduous in nature, the evergreen tree keeps itself green throughout the year.

Also found in Crete is the unique Cretan palm tree, which grows in abundance along the Vai beach. During the 70s, Hippies overcrowded this beach and left behind the dumps of garbage. Subsequently the whole area was declared a protected zone and gradually the palm tree forest and the beach were restored to their natural shape and looks over the years. These two draw in thousands of Crete bound tourists each year these days.

The Cretan Fauna is as impressive as its flora with some unique species filling up its biological chart. The Cretan wild goat leads the chart with its unusual yet impressive appearance. The animal is a protected species, and is found over a wide range. Several lizards and at least one poisonous snake do also inhabit these areas. Funnily, it was believed that St. Titus had earlier driven all the poisonous snakes off the Crete Island. The Cretan golden eagle leads the segment of birds from this area. Also found are warblers, swallows, goldfinches and some migratory birds. The voyage from hotels in Crete to the archaeological treasures across the island, and that to the thrilling beaches and the valleys carrying such a rich flora and fauna is bound to generate excitement.

Source: Free Articles

Europe Learn from Monaco How To Green in The world

European tax haven Monaco has led the small countries of the world in the campaign to heighten awareness of environmental issues since Prince Albert became Sovereign in 2005, and has launched a radical plan of its own to cut carbon emissions.

One of the first acts Prince Albert took when succeeding to the throne upon his father's death was to sign the Kyoto Protocol.

Along with the USA and Australia, Monaco was one of the few countries not to sign up to the treaty intended to cut greenhouses gases.

Included in a campaign by Prince Albert to protect the environment has been an expedition to the Arctic to see for himself how global warming has begun to melt the glaciers, and shortly after his return he started a foundation to study rising sea levels and how to address what he sees as environmental challenges.

Monaco travel guide http://www.yourmonaco.com comment that given the Principality's position in the Mediterranean, concern at rising sea levels should come as no surprise.

'There are plans at an advanced stage to build an island off Monte Carlo, which will change the Monaco map, and the district of Fontvieille is largely reclaimed from the sea.'

The island is expected to be complete in ten years time, and will include the first new hotels in Monaco for some time.

Prince Albert recently spent time with fellow royal and campaigner for the environment Prince Charles.

'Most notable of all', comment YourMonaco, 'Prince Albert chose a mansion in the Kalorama district of Washington D.C. to serve as Monaco's U.S. Embassy - Monaco's first independent embassy outside of Europe. Up to now it hasn't been necessary for Monaco to have her own representation in the U.S. - France has always looked after Monaco's interests. But it serves as a useful base for him to entertain politicans on Capitol Hill and get his environment message across. Expect to see more of Prince Albert in America in the coming months and years!'.

Monaco Weather

With Prince Albert punching above Monaco's weight abroad, he has been no less active at home to prove his green credentials, and a radical plan has been introduced to cut carbon emissions, and to reduce the number of cars on the streets of Monte Carlo.

The domestic campaign began with the Monaco Yacht Show 2005, held each September, with the event successfully becoming carbon neutral. To encourage the thousands who commute to Monaco every day from neighbouring France and Italy the railway station is one of the best in Europe, with frequent and reliable services.

'For those who work in Monte Carlo and travel in from Nice and her surrounding villages five days a week, it's both cheaper and quicker to take the train - the trains are modern and comfortable and it's rare for seats not to be available even during the rush hour', claim YourMonaco.com. 'Once people are in Monaco the local transport service is equally quick and efficient. Virtually all routes are well planned and easy to understand, and the most you have to wait for a bus is ten minutes, often it's just a couple of minutes - which isn't exactly a hardship given the weather in Monte Carlo!'

With many major companies and the banks in Monaco also looking to see how they can improve their own environmental records the business community view the steps as prudent ones.

The routes are planned to incorporate tourist needs, with many passing by the Hotel de Paris in Casino Square and the Columbus in Fontvieille, two of the best known and popular Monaco hotels. Fares have been reduced to one Euro, making public transport in Monaco among the lowest priced, comfortable and frequent in Europe.

With the overall aim to increase bus usage by 20 per cent, the Principality is also funding five new duplex trains with a thirty per cent increase in train services, and in an innovative attempt to persuade commuters to leave their cars at home will provide free electric cycles at car park schemes.

'The one time of year you might see fast cars being encouraged is of course for the Monaco Grand Prix in May', conclude YourMonaco, 'But overall it's Prince Albert who will be able to claim the winners rostrum among European leaders for the environment.'

Source: Free Articles

Improving Our World One LED Light at a Time

LED lights are a wonderful invention that has changed the way the world is lit. Not only are they long lasting, they have many environmental benefits. LED lights are four times more efficient than a regular incandescent light bulb and last 10 times as long. LED lights also use between 50 and 80 percent less energy than an incandescent bulb.

LED lights are considerably less expensive to operate, however are a little more expensive to purchase. LED home lighting requires only one third of the energy that an incandescent bulb will use. A single 18-watt LED light can replace a 75-watt incandescent and in the lifetime of the LED light, will save 570 kWh of energy. At a basic eight cents per kilowatt rate, that equals $45 dollars in energy bill savings.

By switching to low energy LED home lighting in your home, even one bulb will keep one half of a ton of carbon dioxide out of the atmosphere through the lifetime of the bulb instead of using incandescent bulbs. Switching also keeps sulfur oxide and nuclear waste out of the atmosphere as well, leading to a cleaner world and one that will last much longer. By simply switching, our environment could easily revitalize itself without having to deal with the excess carbon dioxide, sulfur oxide and nuclear waste emissions that are currently being released into the atmosphere every day. Even changing one lonely bulb in every home to LED home lighting would make a significant impact on the environment.

If every home in the United States were to switch to LED home lighting, 90 power plants could be retired, a potentially powerful impact to the long-term health of the environment. Being energy efficient and environmentally conscious doesn’t have to disrupt your entire life. The switch is as difficult as changing one light bulb in your home, the results of which would save you money on your electricity bill each month. Just one home lighting fixture, one light bulb can be a positive step forward for your household. Take a look around your home and count how many bulbs you use and consider how often you change them. Say, for example that you change a bulb every two months. Now, consider that by changing them all to LED lighting for your home, you could leave them and not have to replace them for 20 months. The slightly higher upfront costs of LED lights make sense.

LED lighting is finding its way into many niche markets. You can get a LED flashlight that also uses less battery energy, ensuring that the next time the power goes out in your home, you can be confident that your batteries will last. There are also LED lanterns that you can choose from that are ideal for camping or hunting. They last for considerably longer than other lanterns because they use 10 times less energy to run than standard incandescent bulbs and even less energy than a kerosene lantern.

For LED home lighting, there are many options available other than just bulbs. You can find LED light fixtures for your home, indoor and out, that will provide low energy, environmentally-friendly lighting that can save you money on your energy bill.

We all are challenged to do our part to conserve energy. By making small adjustments to the way we live, we can begin to make an impact on our world. One small change we all can make is to switch our home and outdoor light fixtures to LED light options. There are a large number of options for LED home lighting and LED camping and hunting outdoor equipment available on the market, all of which provide the energy efficiency benefits inherent in LED products. The benefits can become apparent very quickly as we begin to see our energy bill costs reduce over a period of a few months.

Spa Water Treatment Options

Since mankind decided that hot tubs would be fun we have had to face the challenge of keeping that water clear and safe. Chlorine and Bromine have been in use since almost day one. Both have their advantages. They kill everything. The down side is also that they kill everything. By that I mean that Chlorine and Bromine are both caustic chemicals. That is both how they function and what makes them less desirable. Not only do they kill germs and bacteria but they are harmful to your skin, hair, bathing suits, spa jets, pump impellers, pets and environment. With the heightened awareness of the environment and our own physical health, there has been a wide variety of alternatives to the old standards.

Minerals can be used to treat the spa water with less harmful effects. First, Copper can be used to treat your water and keeps stuff from growing in your water. It is a lot safer for your skin, hair and health, and won’t cause premature break down of your pump and jet components. Still, because it does a good job of killing things you need to use care when you empty your spa. Some areas have banned using copper to treat water because if it does end up in the water shed it will kill fish and algae.

Another popular choice is Silver and zinc. I would just recommend sticking with the liquid based versions. You should never use anything directly in the filter area of the spa because you do not want the risk of anything being sucked into the water pump.

Ozone can also be effective in water treatment. It works by exposing ultra violet light to air which forms an energetic oxidizer. It destroys algae, viruses and bacteria. Again you should know how to use your system properly. Avoid over exposure to ozone while using the spa. No ozone bubbles should be entering the spa during occupancy. Also you should not be able to smell ozone while you are in the spa.

One thing that a lot of spa owners forget about is checking your spa water pH. Maintaining the proper pH level can greatly improve the effectiveness of the water treatment. Spa water that is not properly balanced can cause irritation to eyes, and mucous membranes. Just because you keep a handle on your chemical treatment, do not get lazy about checking the pH.

Finally, circulation of the water. Stagnant water, especially warm stagnant water is a breeding ground for life. Regular circulation of the water for significant periods of time will reduce the need for chemicals and increases the effectiveness of the spas filtration. It is better overall for your spa pump to run for three to four hours at a time for two to three times per day as opposed to running for thirty minutes at a time ten times per day. If your spa only runs for thirty minutes it does no have enough time to properly filter all the spa water.

The bottom line is that yo want to be able to enjoy your spa for years to come. However like your car, regular maintenance can have a profound influence on that. If you maintain your car, change the oil, replace the filters, rotate the tires, you stand a much better choice of enjoying your vehicle with fewer unpleasant surprises. The same goes for your spa.

Infra red Gas Sensing Technology ‘Gascard NG’ by Edinburgh Instruments

Edinburgh Instruments (UK) has a well deserved reputation in the arena of infra-red gas sensing technology, with a track record spanning over 20 years. The company is continuing to build on this reputation with the introduction of its next generation OEM sensor, named the Gascard NG. Utilising established and proven technology from the existing Gascard range of instruments, the Gascard NG not only addresses existing customer requirement, being backward-compatible with the current Gascard model, but it also provides for future extendibility and functionality through improved communications and configuration options.

The main highlights of the Gascard NG are :
1. Backward-compatibility with the current generation of Gascard detectors;
2. Automatic temperature and pressure correction via on-board sensors;
3. On-board RS232 communication;
4. TCP/IP communications protocol option
5. Field replaceable IR source
6. Windows-compatible data logging software
7. Enhanced configuration options for future extendibility to incorporate additional gas detection technologies.

Initially released in CO2 ppm & low per cent volume configurations, the range has now been extended to include all the different measurement ranges for CO2 as well as the other target gases covered by the current Gascard model. Such as CO and CH4.

Liquid Level Transmitter Support Foundation Fieldbus

MTS ( Germany ) has developed a new output for its line of magnetostrictive Level Plus liquid sensors. Foundation Fieldbus will be the third protocol offered by the MG digital level transmitter, which also includes current production of Modbus and the ASCII based proprietary DDA protocols. The model MG satisfies the demand for a digital communication interface in the liquid-level marketplace for vessels from 508 mm to 22,000 mm. It offers maintenance free liquid level measurement for automatic tank gauging without any recalibration. Featuring 3-in-1 measurement of the product level, interface level, and the average temperature of the liquid from up to 12 temperature points it utilizes a single process opening, eliminating the need for separate level and temperature transmitters.

Designed for inventory control, the model MG offers a resolution of 0,025 mm at maximum length and can also provide volume measurement from a 100-point strap table that the user loads into the transmitter. The new Foundation Fieldbus protocol will make the Model MG transmitter compatible with an even wider variety of control system, expanding the company’s offerings to additional customers with pharmaceutical, chemical, biotech and food applications. Now they can combine the superior control capabilitiesof the protocol with the transmitter superior repeatability and reliability for an extremely efficient process.

source : Environmental technology newspaper

Alphasense : Releases A-Series Photo Ionisation Detector (PID) Sensor

With a PID (Photo Ionisation Detector) the sample gas is exposed to deep ultraviolet light from a lamp. The emitted light ionizes targeted gases in the sample so they can be detected by the gas detector and reported as a concentration (ppb or ppm).
The Alphasense (UK) PID can be installed in portable and stationary gas monitors that accept either Alphasense Ltd CH-A3 or other manufactures compatible pellistor cells.
Thus providing complete PID capability in a package that has the same dimensional and electrical profile as Pellistors ( providing the electronics input circuit is designed to take the sensor’s output range). This opens up an incredible variety of environmental and safety applications in industrial, commercial and residential markets.
The Alphasense PID sensor is offered in two models. They are virtually insentive to humidity changes, providing unparalleled performance in a variety of application such as, PID – A1 has a linear dynamic range of 50-ppb to 6000-ppm (Isobutylene), PID-AH has a linear dynamic range of 5-ppb to 100-ppm (Isobutylene), The sensor include a detector with 10.6eV Lamp, Lamp driver, Amplifier Circuitry and removable and replaceable Electrode Stack & Particulate Filter.
Arthur W. Burnley, Sales and Marketing Director stated :”Alphasense commitment is always to provide the best product it can in the market for its customers. We constantly improve, develop and introduce new products and the recently released PID range is an excellent example of this. Our policy is to introduce ebest by design sensors, not eme too product. These PID sensors have already been fully tested and adopted by a number of OEM and are beginning to replace our competitor products. A major benefit is the much lower cost for replacement lamps and the ability to replace the electrode stack at a nominal cost. Alphasense maintains its commitment to customers by continuing to supply the highest quality sensors with on-time delivery every time allied to exemplary support.”

Source : Environmental Technology newspaper

The DGTec-ex New Gas Detector for Zone 0

The DGTec-ex from Detector Oy (Finland) is a new generation of digital gas detector for explosive atmospheres (zone 0, 1 and 2). The detector is fitted with an electro-chemical sensor. It is designed to monitor the presence of either oxygen, hydrogen or toxic gases in the process of food, drug and petrochemical industry – all parameters defined according to the customer’s specification!
Other environments with Ex-classifications in which this reliable measuring technology can be used are in i.e. hospital, laboratories, compressor rooms and water treatment plants. Due to the fact that the sensor element is target specific it will only react with the measured gas. This reduces radically the risk of false alarm. The biggest advantage with the digital measuring technology is achieved when the detector are connected to the innovative SCAN-series gas controllers.
Wireless monitoring and reporting
Wireless setting of the parameters as well as calibration of the new digital gas detector is done by using the IR Communicator (IRC). The data is stored in the IRC. If needed a report with data of i.e. the last calibration and settings of the equipment with serial numbers can be printed out for authority use.
Before the delivery the detector DGtec-ex is calibrated at the factory for the right measuring range according to the monitoring needs of the customer. Since the detector is ATEX-certified only personnel authorized by Detector Oy is entitled to calibrate and to service the detector.

Gas Detection Digital TA-2016MB-WM Wall Mount Controller

New and award Winning Gas Detection Digital Modbus RTU Wall Mount Controller, TA-2016MB-WM designed and manufactured by Mil-Ram Technology (USA) features a 16 channel system utilizing RS-485 Modbus RTU Multi-drop smarter Transmitter (Sensor) Network. Four relays (SPST), 10 Amp. are common to all channels. Select latching or non-latching function. Low, Mid, High, Fault relays. LED alarm indicators. Local buzzer.

Option : remote Relay Modules, Modbus enabled, can be installed at any point on RS-485 network. Up to 16 modules per network and up to 16 different zones. Conveniently install relays at point of use, which eliminates long wiring runs between relays and field installed alarms. Remote Analog Output Module provides discrete analog 4-20mA output (16 bit resolution) per channel. Remote Digital Output Module provides RS-485 ModBus RTU interface to Centralized System (e.g. PLC). Analog Input Module to connect standard 4 -20 mA Transmitters where traditional analog installation is preferred. Backlit 16 characters x 2 lines LCD display. Auto-scrolls to provide channel data and fault conditionals. Indicates alarm status. Simple non-intrusive setup using magnet. Auto – Configuration wizard provides rapid channel setup without special knowledge. Nema 4x weatherproof polycarbonate enclosure. Continuous Diagnostics Explosion – proof enclosure, 8-channel wall mount controller, external alarm stations and wireless are all options that are available.

Use with any Mil-Ram Model TA-2100MB smarter Gas Detection Transmitter, Toxic/LEL/VPC/Oxygen, which detect hundreds of different gases and vapors.

source : Environmental technology newspaper

New Open Path Gas Detectors Eliminate False Alarm

Senscients (USA) new ELDS Series Open Path Gas Detectors (OPGD’s) feature truly false-alarm free flammable and toxic gas detection. ELDS gas detectors, scheduled to begin shipping in the first quarter of 2009, solve a problem common in the oil and gas industry: unreliable readings causing false alarms that cost millions of dollars in lost revenue annually. Safety systems triggered by the detection of potentially hazardous gases typically shut down processes and facilities to prevent catastrophe. But when a false alarm triggers the system, productivity is lost while the alarm origin is investigated, false alarm status is verified, and processes are slowly brought back on line.

Using Enhanced Laser Diode Spectroscopy (ELDS), Senscient ELDS detectors automatically ignore interference from any non-target gases and vapors such as organic surfactants, alcohols, diesel fumes and oil mist or atmospheric elements such as rain, fog, and snow that can cause spurious alarms for traditional NDIR or LDS-based open path gas detection systems. This makes Senscient ELDS detectors especially appealing in safety applications where greater 90% uptime performance is required in environmentally challenging installations.

Senscient ELDS OPGD detectors, using Harmonic Fingerprint technology and other advanced features, will initially be available for the detection of either Methane-only gas, or Simultaneous Methane and Hydrogen Sulfide gases in the same system with absolute selectivity. Instrument capabilities and configurations for additional critical hydrocarbon and toxic gases will be introduced later in 2009.

Senscient ELDS Series 1000 and 2000 detectors in a separate transmitter and receiver configuration are capable of establishing coverage from 5 to 40 meters, and up to 200 meters, depending upon the target gas and the required Minimum Reliably Detectable Quantities for the target gas of choice. A target gas reading from anywhere along its beam triggers either an isolated single or dual analog or digital communications signal to a remote safety PLC.

“Our ultra-sensitive and false alarm-free ELDS technology provides the operator with the absolute certainty of a gas leak as well as the earliest warning response of any other methane or hydrogen sulfide detection technology on the market today, providing precious time for remedial action to shut down plant processes and evacuate personnel only when necessary,” according to Jean Berthold, Senscient CSMO and VP.

Senscient ELDS Series 1000 and 2000 gas detectors are designed to meet or exceed the most current toxic and flammable gas detection global safety standards for offshore oil drilling platforms, FPSOs, onshore petrochemical facilities and oil refineries

source : Environmental technology newspaper

The TX5926 and TX5927 In-Line Vortex Gas Flow Sensors Introduced

Trolex (UK) has introduced an in-line version of its vortex gas flow sensor/transmitter. Designed for in line flow monitoring of air, gases and vapours in pipelines, the TX5926 and TX5927 models are made to the usual Trolex exacting standards. The two models provide the option of either a 1” or 2” nominal bore and applications for these gas flow sensors range from ventilation system, cooling systems, and plant protection through to high accuracy transfer metering, environmental control and monitoring as well as for process extraction plants. They are built for use in power plants, process plants, pharmaceutical production, biogas plants, landfill sites as well as cement manufacture and the mining industry – anywhere where gas flow detection in pipes is required.

The new in-line vortex gas flow sensors are certified intrinsically safe, Group I and Group II for use in potentially explosive atmospheres to EURONORM standards. The vortex flow velocity sensing system provides high accuracy, flow measurement free from drift and mechanical deterioration. As the stream of gas passes through the sensing zone, vortices are generated by a transverse strut or ‘Bluff Body’ positioned in the flow path. The vortex frequency is proportional to the flow velocity and this frequency is detected by an ultrasound beam accurately located downstream of the strut. This information is processed by a specially designed software program to provide user configurable information display and a conditioned linear output signal.

Both the TX5926 and TX5927 have programmable information display for zero, span, signal offset, volumetric calculations, engineering units, turn down, damping, display suppression, fault mode, contrast and signal clamp. There are no moving parts on the product and the self-cleaning vortex sensing head gives ultra long-term stability. The units also offer configurable signal turndown and response linearity in true engineering units as well as a volumetric flow calculation facility.

source : Environmental technology newspaper