The MGD controllers listed on Murco’s user friendly website have been made available as one, two, four or six sensors – this is applicable with either single or dual level monitoring - it is also compatible with either the 120 or 230V power supply. For PSU applications, a 12V option can be made available. Some of the advanced elements of this gas detection unit include:

• A visual alarm system that also incorporates an extremely audible alarm, with the relays themselves operating at each singular alarm level.
• System and power fault monitoring that is continuous.
• A handy automatic reset when the gas has cleared. This can be further defined as a one level unit low alarm. When it becomes a two level unit, a user-defined automatic/manual reset is offered. The level one system on the alarm allows one to mute this noise via an internal jumper. Level two units must be done via the key switch.
• A series of relays are put into use in order to activate fans, sirens, to communicate with other monitoring systems/external control or to shout down a valve.
• For the more expansive four and six Sensor controller with two levels of detection; a supplementary fault relay, with an additional relay expander box provides a relay per sensor – this is for each individual alarm level.

The Murco Gas Detector controllers are more than ideal for any smallish installation, and for one that requires a highly affordable, yet quality alarm system that can effectively detect toxic and combustible gases.

The weight of the MGD controllers is:

• 1 & 2 Sensor Panel: 1.3 Kg (2.8 Lb)
• 4 & 6 Sensor Panel: 2.6 Kg (5.6 Lb)

The dimensions of the MGD controllers are:

• 1 & 2 Sensor Panel: 192 x 100 x 75mm (7.6 x 3.9 x 3 inches)
• 4 & 6 Sensor Panel: 262 x 255 x 82mm (10.3 x 10 x 3.2inches)

Visit www.murcogasdetection.com for further, affordable fixed gas leak detection solutions that you can trust, time and time again.

A total of 16 IAM’s can be interconnected to the IAM-C Panel. The IAM-C panel will then display the sensor in a visible alarm - it also has a main rated relay – this is for controlling functionality. If you wish to construct a massive gas detection system, then these panels will be the ideal solution for you.

Look to the IAM as the ultimate answer for those tricky situations that demand nothing less than an expert gas detection device. Install it in your storage facilities, inside apartment blocks, conference rooms, hotels, office buildings, airports, theatres and use it to monitor the installation of air-conditioning units. Other useful features follow below:

• It has a single alarm level, which comes with a handy mute button for the siren.
• This is an accurate, stable and long-lasting sensor.
• No other solution can provide such a reliable and continuous monitoring system – with no blocked filters, sample transport delays or tubing problems usually experienced with other aspirated systems.

Some of the typical applications of the IAM include the detection of refrigerant gases like ammonia, hydrocarbons and halocarbons (such as CFCs, HCFs and HFCs). IAM is also suitable for combustible gases; these include methane, hydrogen, butane, propane and LPG. Finally, volatile gases are no challenge for the IAM as it can detect trichloroethylene, toluene, ethanol, chloroform, carbon tetrachloride, acetone and benzene.

No matter what your business needs are, and no matter what your budget is, you will be glad to know that Murco has a gas detection solution to accommodate your needs. Visit www.murcogasdetection.com for further information regarding integrated area monitors, gas detection units and so much more. Murco, leading the way in gas detection.

Customers wanted this functionality and Murco delivers it! The MGS is a high-spec device, which has been made available at a very economical price. For the customer, this product exceeds all of their safety and compliance requirements. The engineer can purchase the MGS with absolute confidence. The Murco Gas Sensor is excellent for:

• Any new building or area that is in need of a non-stop monitoring by means of an advanced gas sensing transmitter.
• Clients who wish to include a superior gas detection system to their current setup.

Please see below for a list of the usual gases and compounds that our sensor can detect:

• Refrigerant gases such as halocarbons (HFCs, CFCs, HCFCs), hydrocarbons, carbon dioxide and ammonia.
• A full range of deadly toxic gases that includes hydrogen sulphide (commonly found in sewage treatments), the carbon monoxide in below-level car parks as well as the ammonia and carbon dioxide found in refrigeration.
• Unstable and potentially explosive organic compounds like trichloroethylene, toluene, ethanol, chloroform, carbon tetrachloride, benzene and acetone.

For those businesses that require a stand-alone gas detection solution, Murco can also provide control panels for this purpose. The models Murco produces are available in up to 16 channels.

An effective gas detection solution is a must-have for any company that requires peace of mind when operating with volatile or poisonous gases. Don’t take any chances with lesser gas detectors and visit www.murcogasdetection.com for a sensor that meets not only the needs of your gas detection technician, but the safety and reliability needs of your business as well.

In terms of universal outputs, the ST-IAM sensors provide functionality for 0-5V, 0-10V, 4-20mA, RS-485, as well as two relays. These outputs can all be operational at the same time, and can be configured in a variety of combinations. The ST-IAM has devices that incorporate infrared gas sensing technology as well as catalytic, electrochemical and semiconductor gas detection sensors.

Refrigerant gas detection epuipment from Murco can detect carbon dioxide, hydrocarbons, halocarbons, and ammonia. Combustible gas detection has a far-reaching detection reach and can easily pick up VOC (volatile organic compounds) and toxic gases such as ethanol, benzene, acetone, hydrogen sulphide, carbon dioxide, carbon monoxide and much more. Other gases that can be detected include hydrogen, butane, propane, LPG (Liquefied petroleum) and methane.

The sensor board only needs to be exchanged in order for the calibration to be corrected or for a new gas to be targeted, which offers easy maintenance and cost-effectiveness. It’s innovative approaches like this that keep Murco at the leading edge of gas detection.

Consider the ST-IAM if you are looking to address these concerns:

• If you need an application that can continuously monitor the linear output of your gas.
• If you want to extend the capabilities of your existing control system by incorporating both gas detection and monitoring
• If you wish to create a large-scale installation that includes up to 99 connections combined with our ST-MON panel.

The perfect gas leak sensor solution is waiting for you at www.murcogasdetection.com.

• Discover the location of refrigerant gases which includes hydrocarbons, halocarbons, ammonia and CO2.
• Quickly detect the levels of combustible gases in the atmosphere; gasses such as hydrogen, LPG, butane, methane, propane and more.
• Accurately detect VOC and toxic gases (this includes but is not limited to acetone, ethanol, benzene and others).

There is a wide range of sensor enclosures that are designed to suit a variety of uses, depending on your requirements and the practical considerations you’ll need to take into account.

It is of course critical that the main alarm unit as well as its sensors should be located carefully in terms of their proximity to mechanical appliances (automatic doors, construction line equipment and so on). It’s also important to avoid placing the machine near or around areas of high thermal variance (air conditioners/heaters) or areas that are prone to moisture.

The sensor cabling should not be routed outside of the premises or through overhead cables that lie between buildings. Keep the sensor cabling well away from any telephone cables or mains – we recommend a distance of five hundred meters or more. When the fixed refrigerant gas detection device is first switched on, please allow for a three minute delay before system activation begins. This is necessary as the sensor unit must warm up in order for an accurate gas detection reading.

Murco Gas knows exactly what your refrigerant gas detection needs are, so for machines like the one described above and more, visit www.murcogasdetection.com today.

Continuous gas monitoring allows for every sampling point (gas leak sensor) to be monitored at all times therefore the concentration of gas shown on the display reflects the actual situation at that point – at any given moment.

The benefits of continuous Gas monitoring through fixed gas detector units are many;

• delays in measuring and transporting air samples are eliminated
• the issue of blocked plastic tubes / filters is addresssed
• possible kinks in tubes and similar complications during installation are no longer a problem.

Also it’s worth noting that many toxic gases that can be encountered in work situations and commercial premises have very low limits in terms of regulatory compliance – these are known as “ceiling values” and its critical that these limits are not exceeded – both from a legal and health and safety perspective. So air sampling methods can fall short of what is required for certain gases.
It makes sense for these gases to be continuously monitored – using fixed gas detection - in any location where employees are at risk of exposure to the gas.

One of the key considerations in terms of delivering on health and safety requirements while also managing costs - is the need to carefully specify an appropriate number of gas leak detector units to be installed. Good planning and the correct specification of appropriate monitoring systems can ensure that the most appropriate and cost-effective gas detection system is installed at the outset.

Semiconductor (SC) are applied in a wide range of types of gas detection covering combustible, toxic and refrigerant gas detection. SC’s are highly economical and they typically have a lifespan that ranges between 5 and 8 years. In the past these sensors were prone to cross sensitivity issues however this has been resolved through a combination of filtered sensors, by using time delay within the electronics and through amending the threshold settings on the alarm.

Electrochemical (EC) fixed gas sensor devices are relevant where gases are prone to undergoing any type of oxidation or reduction reaction. These are highly selective and will measure gases at extremely low levels – making them very accurate. EC’s are typically recommended for toxic gas detection. These are provided with long life sensors which have a typical lifespan of 3 years or so.

A Catalytic (CAT) gas leak sensor is primarily applied for the detection of combustible gas as detection at high concentrations is essential - up to 100% LEL in some cases. Each CAT fixed gas detector can respond to every combustible gas, at different rates therefore they can be readily calibrated for any specific gas. The typical lifespan for a CAT sensor is approx. 5 years.

An Infrared (IR) gas leak detector is specific, highly accurate and usually has a life span of about 10 years. Normally they are applied for the detection of Carbon Dioxide but are also available for hydrocarbons, ammonia and halocarbon refrigerants

Check out the homepage of www.murcogasdetection.com and use the “Which Gas do you want to detect” functionality to identify the best sensor for your requirements.

Josephine Sensi from the Dandenong fire office stated that fifteen fire-fighters from both Dandenong and Hallam reached the leak and tended to it on time – the gas leak came from a sulfurdioxide cylinder.

Ms Sensi stated that, ‘It had the potential to be very serious, but all personnel followed the correct procedures and worked well together. It was controlled and calm. Everyone’s safety was paramount.”

Ms Sensi also stated that the fire-fighters were outfitted with gas suits; these suits covered their entire body, as well as the breathing apparatus. It was then a four hour mission of locating and isolating the leaking cylinder. She mentioned that, “It was a lengthy and complex process. The detector sensed high levels, but when we got in there with our detectors- most of the time there was no gas detected. At one point, when disconnecting the cylinder, there were really low levels detected. This type of incident is quite unusual, but because there is so much industry in Dandenong, we are well trained and prepared and we have specialist equipment such as the fixed gas detection monitor.”

Sensi also said that a Hazmat (Hazardous Materials) detection vehicle was also employed in order to recover the cylinder. This vehicle is one of three in the state. She also mentioned that is was very fortunate that no one managed to come into any contact at all with the gas, as it has the dangerous potential to cause an onset of respiratory distress. She also highly recommended that in case of contact with the gas, decontamination would be most advisable.

The on-site ambulance and paramedics were actively performing health checks as well as assessments during this incident. She also said that this was the very first time that the alarm has ever detected such a gas leak, ‘Fire crews couldn’t really find anything,” she said. “Anything that was detected was at very low levels- about 2 parts per million,” Normal functions within the factory continued soon after.

The gas detected in this case – Sulpher Dioxide – is one of the gases which Murco specialises in detecting – for relevant products see http://www.murcogasdetection.com/gases/sulphur-dioxide/

Visit http://www.murcogasdetection.com to source suitable gas leak sensors.

The gas detection devices will also be able to instantly determine the amount of air that is left inside an individual’s oxygen tank. This complex data will then be sent via signal to mobile command stations - where the fire chiefs will monitor all search and rescue missions.

The HUD (heads up display) is said to be released this year and in a move that seems to be cribbed directly from video games and movies, the information will be shown inside the helmet of the emergency worker, providing a detailed report of this must-have information. The HUD will also employ a radio that will transmit all vocal information back to base.

Other key gas detection units in production for fire-fighters include a multi-gas system that works on five corresponding levels of harmful gasses. The gas detection system will even have a motion detection sensor - one that can be triggered in thirty seconds or less if the device has found no active motions from the individual. These new systems also include a module that is used to test the active sensors on the gas detection units on a daily basis. It has been reported that the system will need no maintenance for up to a year. As the industry continues to develop devices like these, our customers gas detection challenges can be readily addressed - in cost-effective and comprehensive ways.

Gas is an invisible threat – whether the leak is from your commercial refrigeration units to the ozone that leaks from copier machines, gas leaks are a real concern for every business.

Thanks to the advances in gas sensor technology which continues to produce innovations such as these life-saving devices  -  we are able to secure our environments.

For commercial fixed gas detection units that deliver on your needs, check out  http://www.murcogasdetection.com

However another key benefit is the fact that early detection can save considerable cost - a refrigerant gas leak can become very expensive for the company, for example.

Gas detection in fixed spaces typically involves the application of fixed devices developed to detect specified gases. Any gas detector can be instantly classified by the technology employed. Semiconductor, infrared and catalytic Sensors will respond to combustible gases, while semiconductor and electrochemical will detect toxic gases. So, how do these two groups measure them?

Combustible gasses:
Gas measurement is done via catalytic or infrared sensors. Catalytic sensors are fitted with a platinum treated wire coil. When gas contacts the surface of this coil, it oxidises and detects a threat because of the change in heat. The bridging circuit will then inform the user or machine of this change. IR detectors use a set of transmitters as well as receivers to detect gas sources in its optical path. Gas will hinder the light transmission from the IR detector and this in turn determines the type of gas leak..

Toxic gasses:
Metal oxide semiconductors (MOS) works with a highly responsive film which is made up of tin/tungsten oxides. When this film comes into contact with any target gasses, the device is triggered. MOS works well in low-humidity environments and many of these devices are also able to detect combustibles as well

Electrochemical sensors work by responding to oxidation or reduction type gases including, oxygen, hydrogen, nitrogen oxides, carbon monoxide and chlorine gasses. In the presence of the gas a reaction occurs generating a current between electrodes. The sensors are highly sensitive and will detect at very low levels giving rise to early detection.

Refrigerant gas is a common toxic gas occurring in any factory or commercial premises that uses refrigerants in refrigeration or air conditioning systems. Most jurisdictions have laws or standards requiring that refrigerant leak detectors be installed .
For further information about gas leak detectors and their prices, visit http://www.murcogasdetection.com for the best gas detection products on the market.