Measuring emissions in hazardous areas

A large industrial site, which can potentially have many leak sources, is a typically hazardous area demanding a tough, reliable analyser for gas emission monitoring.


ATEX is the term used for two European directives controlling these high-risk, explosive atmospheres. One concerns the protection of workers, while the other focuses on equipment and protective systems. In Britain, the requirements of the former are put into effect by the Dangerous Substances and Explosive Atmospheres Regulations 2002 (DSEAR).  Employers must classify their potentially hazardous areas into zones (see below) and all equipment and protective systems intended to be used in those areas must meet certain requirements.

The Procal solution

Among the recently approved systems is the Procal 2000, which can now continue monitoring hydrocarbons, nitrogen oxide, nitrogen dioxide and other gases  in the chemical and refining industries, where it is already being used.

The Procal 2000 is a Continuous Emission Monitoring Process Infra-Red Analyser, which uses the reflective beam principle to directly measure process gas as it enters an in-situ sample cell.  Installation is simple and requires very little maintenance.  This makes it suitable for marine environments too.

Its advanced design is the result of many years of research and development in the field of stack gas analysis.

Fire hazards

Under ATEX, gases and vapours are grouped in three zones, each indicating the likelihood and probable duration of hazards being present in flammable concentrations.  Beginning with the most severe, these are numbered 0 (where a flammable atmosphere may be present continuously), 1 and 2.

Each piece of equipment used in these areas has marked on it a series of letters and numbers, which indicate its protection qualities. The Procal 2000 is marked ATEX II 2 G Ex d IIB T4/T6 (application dependent).  This means that it is flameproof and can be safely used in zones 1 and 2 (which would include chemical plants, LNG terminals and a number of mining operations) and where gases such as methane, ethylene and hydrogen (which is especially flammable) are present.

Among other certifications, the Procal 2000 is approved by the IEC, the International Electrotechnical Commission, which is responsible for worldwide standards for electrical, electronic and related technologies.

The challenge of measuring emissions in hazardous areas is often compounded by climatic extremes. A range of accessories ensures that the Procal 2000 can stand up to these. For example, a head cooler allows operation when outside temperatures are high, and a gas flow bypass ensures operation when temperature fluctuations cause thermal stress in a structure.

To find out more about our analysers and their approvals, contact us or call us on 01733 232 495.

The Holroyd MCH-HMI Unit

Parker Kittiwake is pleased to announce the launch of the Holroyd HMI (Human Machine Interface) Unit.

Used alongside the MHC (Machine Health Checker) Smart Std and Smart Slo sensors, part of the MHC 4000 Series Sensors from Parker Kittiwake Holroyd, the HMI Unit translates sensor data, allows detailed analysis of historical data and can be accessed remotely.

The HMI Unit is a data monitoring and recording device which, when used in conjunction with the Smart and Slo sensors, translates the 0-10V outputs of the sensors into dB, Distress, Peak, Intensity and Extent readings, as well as providing access to a variety of methods for reacting to the readings obtained from the MHC sensors.

Once the HMI Unit has been successfully connected and configured with sensors, it displays their current alarm states with colour indications to easily identify status. Historical data for each sensor can also be easily accessed using the HMI Unit, allowing for detailed analysis.

The HMI Unit can be accessed remotely via an internet browser if the Unit is connected to the internet, making it easy and flexible to access sensor data.

For further information contact us on:
Tel: +44 1903 731470

Parker Kittiwake products to feature at Nor Shipping 2013


Kititwake Bunker Samplers

From the 4th to 7th June, Parker Kittiwake will be featuring a selection of products at Nor Shipping, the leading maritime exhibition and conference, taking place in Oslo.

Visit us on the Parker Hannifin stand E02-15 to see, not only Parker’s Kittiwake’s condition monitoring and sampling solutions, but also Parker Hannifin’s range of motion and control technology.

We hope to see you there!

Parker Kittiwake exhibiting condition monitoring offering at Maintec 2013

Focus On 2 Maintec Graphic

From the 5th – 7th March, Parker Kittiwake will be exhibiting at Maintec, the UK’s premier show for maintenance and asset management, taking place at the NEC, Birmingham.

Parker Kittiwake will be displaying a range of their condition monitoring and acoustic emissions monitoring products on booth H21 in hall 6. Furthermore, Dr Trevor Holroyd, Technical Director at Parker Kittiwake will be speaking on the topic of ‘the application of acoustic emission to detect ineffective lubrication in operating machinery’.

We hope to see you there!

Parker Kittiwake awarded ISO 14001 Environmental Management standard

Following a detailed technical review and assessment process carried out by Lloyd’s Register Quality Assurance (LRQA), Parker Kittiwake is delighted to announce that it has been awarded the ISO 14001 Environmental Management certificate.

ISO 14001 Environmental Management is an internationally recognised standard outlining how to implement an effective environmental management system. It recognises investment in reducing waste and energy use, improving efficiency and meeting legal obligations.

Steve Dye, Business Development Manager at Parker Kittiwake, commented: “Achieving the ISO 14001 Environmental Management certificate highlights Parker Kittiwake’s ongoing efforts to work towards greater environmental sustainability. It sets an industry standard for all to work towards and will help Parker Kittiwake meet customer expectations while maintaining both our corporate and regulatory responsibilities.

“The next stage in the process of ISO 14001 Environmental Management is to maintain our high standards and work towards the next assessment that will be carried out in May 2013. This is a great achievement that cements Parker Kittiwake’s credentials as an environmentally responsible company.”

Click here to download the certificate.

Parker Kittiwake Developments acquired by Parker Hannifin




CLEVELAND, July 16, 2012 — Parker Hannifin Corporation (NYSE: PH), the global leader in motion and control technologies, today announced that it has acquired Kittiwake Developments Limited based in Littlehampton, United Kingdom. Kittiwake Developments is a leading manufacturer of condition monitoring technology including wear debris sensors, oil testing and analysis instrumentation and acoustic, vibration and gas emissions monitoring sensors. These products are used alongside filtration technology in the commercial marine, oil and gas, power generation and defence markets.

The acquired business has annual sales of approximately $20 million and employs 95 people. Kittiwake Developments will be integrated into Parker’s Filtration Group and the sales will be reported as part of the International Industrial Segment.

“Kittiwake Developments will allow us to extend our position in diagnostic products and reinforce our ability to offer our customers complete health monitoring solution for their filtration systems,” said Peter Popoff, President of Parker’s Filtration Group. “We welcome the employees of Kittiwake to Parker and are excited about the growth opportunities this combination creates.”

With annual sales exceeding $12 billion in fiscal year 2011, Parker Hannifin is the world’s leading diversified manufacturer of motion and control technologies and systems, providing precision-engineered solutions for a wide variety of mobile, industrial and aerospace markets. The company employs approximately 58,000 people in 47 countries around the world. Parker has increased its annual dividends paid to shareholders for 56 consecutive fiscal years, among the top five longest-running dividend-increase records in the S&P 500 index. For more information, visit the company’s web site at, or its investor information web site at

Forward-Looking Statements

Forward-looking statements contained in this and other written and oral reports are made based on known events and circumstances at the time of release, and as such, are subject in the future to unforeseen uncertainties and risks. All statements regarding future performance, earnings projections, events or developments are forward-looking statements. It is possible that the future performance and earnings projections of the company, including its individual segments, may differ materially from current expectations, depending on economic conditions within its mobile, industrial and aerospace markets, and the company’s ability to maintain and achieve anticipated benefits associated with announced realignment activities, strategic initiatives to improve operating margins, actions taken to combat the effects of the current economic environment, and growth, innovation and global diversification initiatives. A change in the economic conditions in individual markets may have a particularly volatile effect on segment performance. Among other factors which may affect future performance are: changes in business relationships with and purchases by or from major customers, suppliers or distributors, including delays or cancellations in shipments, disputes regarding contract terms or significant changes in financial condition, changes in contract cost and revenue estimates for new development programs and changes in product mix; ability to identify acceptable strategic acquisition targets; uncertainties surrounding timing, successful completion or integration of acquisitions; ability to realize anticipated cost savings from business realignment activities; threats associated with and efforts to combat terrorism; uncertainties surrounding the ultimate resolution of outstanding legal proceedings, including the outcome of any appeals; competitive market conditions and resulting effects on sales and pricing; increases in raw material costs that cannot be recovered in product pricing; the company’s ability to manage costs related to insurance and employee retirement and health care benefits; and global economic factors, including manufacturing activity, air travel trends, currency exchange rates, difficulties entering new markets and general economic conditions such as inflation, deflation, interest rates and credit availability. The company makes these statements as of the date of this disclosure, and undertakes no obligation to update them unless otherwise required by law.

Condition Monitoring: why acoustic emission represents the next generation of vibration

History, experience and familiarity count for a lot where conditioning monitoring is concerned. But that doesn’t negate the need for change, innovation and the advancement of tried, tested and trusted techniques. The late Steve Jobs commented: “Innovation is the ability to see change as an opportunity – not a threat”. Condition monitoring (CM) is transforming rapidly and so too must the mindset of CM practitioners and users. It’s not good enough to simply disregard a disruptive technology in an effort to protect the ‘old guard’. When combating downtime, there’s no place for historical sentiment.

Steadily disrupting traditional vibration techniques is acoustic emission (AE). As the mechanical condition of machinery deteriorates, energy loss processes such as impacts, friction and crushing generate sound wave activity that spans a broad range of frequencies. AE technique is based on frequencies much higher than are monitored in the repetitive synchronous movement of vibration. By detecting only the high frequency part of this signal, it is possible to detect miniscule amounts of activity, for example a slight rub, a brief impact or the crushing of a single particle in the lubricant. By this means it is possible to detect impending failure before damage occurs, as well as monitoring its progress thereafter.

With well-defined ISO standards, traditional vibration techniques including vibration monitoring and vibration analysis have provided a trusted approach to condition monitoring for the past thirty years. Yet, it remains a complex science and requires sophisticated knowledge and understanding from a seasoned expert. In contrast, AE technology extends and simplifies the science, placing the power of vibration techniques directly into the hands of every engineer. Signals can be processed at the AE sensor in to an easily understandable form.

Let’s be clear, vibration analysis (VA) as a technique will have a place for many for years to come for many end users, however there is no escaping from the fact that there is often a requirement for a costly and unsustainable level of knowledge required to affect a good diagnosis. There is not doubt that VA is valuable, but it is too often overly complicated.

In fact the areas in which vibration and AE both apply can be illustrated as overlapping circles However, AE provides an earlier warning detecting wear and small defects, whereas with vibration, damage must have occurred to detect a signal. AE will pick up a lack of lubrication, friction, and cracking, which vibration will not. Although it must be acknowledged that the totality of information obtained from AE will be more limited than that derived from vibration.

The signal processing required by AE is, in itself, not something that can be performed by just anyone; it’s a high frequency signal so the user must have the knowledge to interpret the squiggly lines on an oscilloscope. But recent developments pioneered by Kittiwake Holroyd have enabled this processing at the sensor level. The sensor output can now provide pre-characterised numbers that tell you about the condition of the machine. AE technology has been effectively deskilled, enabling much wider application use.

Suitable for continuously running machinery as well as machinery operating intermittently, slowly or for short durations, AE allows the user to diagnose problems with machinery at an early stage, carry out maintenance procedures and then monitor the improvement. It provides real time information with early sensitivity to faults and applicability to a wide range of rotational speeds.

While for some, the criticality of certain applications coupled with the scale of some companies might justify the cost of vibration techniques, others could still benefit from the efficiencies realised by similar CM techniques. AE is specifically designed to allow users with little knowledge of the subject to check bearings and major slideways for condition in a way that would be near impossible using traditional vibration techniques. Vibration analysis is typically undertaken on ships using outside, third party consultants, if at all. With AE technology, you give it to a ships engineer right out of the box and by the end of their shift they will have an accurate assessment of all the engine room pumps, turbine and generator bearings, crane slewing rings and any ancillary air leaks in the engine room.

As awareness of the unique capabilities of acoustic emission increases, so too does the number of applications that it is suited to and the formats in which it is available. Kittiwake Holroyd, for example, provides a range of portable instruments, permanently installed remote sensors for areas of difficult access, as well as stand-alone programmable smart sensors for continuous surveillance.

Ultimately, maintenance personnel are responsible for keeping machinery running. If they are empowered to monitor condition themselves, identify where action is needed and then check that the action taken has solved the problem, then AE has significant advantages of cost, speed, flexibility and ease of field application in comparison to traditional vibration analysis techniques. It is the efficient and effective approach to CM; an easy way to implement a ‘no surprises’ maintenance policy.

Martin Lucas, managing director, Kittiwake 

Marine Propulsion, February 2012

Kittiwake launches ATEX certified Metallic Wear Debris Sensor

Kittiwake has launched its ATEX and IECEx certified metallic wear debris sensor. Continuously checking the health of an asset and providing alerts to changing wear patterns, the sensor provides the user with instantaneous condition information and can now be used in hazardous zone 1 and 2 applications.

ATEX & IECEx certified metallic wear debris sensor

Traditionally used with critical gearboxes, the addition of ATEX and IECEx certification allows the sensor to be used in environments where explosive gases are likely to be present; such as around top drives, draw works, mud pumps and also in chemical plants, refineries and other oil and gas areas.

The metallic wear debris sensor can be mounted within any lubrication system on any type of asset. The sensor measures ferrous and non-ferrous metals within the lubricant, using a combination of proven inductive coil technology, combined with smart algorithms to provide a particle size distribution count.

Martin Lucas, managing director, Kittiwake Group said: “While temperature, pressure, vibration and acoustic emission sensors all have their part to play in a condition monitoring package, early detection of changes in oil and lubricant condition and regular, consistent monitoring of wear metal debris in rotating plant provide greater insight into the actual condition of vital machinery and equipment.

“With both ATEX and IECEx certification, this new product is now suitable for hazardous environments where potentially explosive gas, vapour or mist is present. This is an industry first as there is no similar device certified for use in Zone 1.”

To learn more about the metallic wear debris sensor click here.

Follow this link to visit the Kittiwake Information Centre, a comprehensive condition monitoring resource.

For more information email:

Acoustic Emission Sensor Enables Early Fault Detection

Dr Steve Dye, Business Development Manager at Kittiwake Developments, discusses the latest acoustic emission technology in a recent feature article in Eureka Magazine.

Kittiwake Holroyd, a Kittiwake Group company, has developed a new handheld Machinery Health Checker (MHC) sensor, used to capture the acoustic emissions from bearings and assess their condition.

MHC Memo Pro

A special acoustic emission sensor allows the user to listen to sound signals being generated on headphones where special audio circuitry filters out normal vibrations and audible signals to let engineers clearly hear rubs, scuffing and impacts as they happen.

Vibration measurements often need a lot of sampling, analysis and diagnostics but Kittiwake wanted an almost instantaneous reading that tells engineers what they need to know.

“The beauty of this is that it is bearing independent,” says Dr Dye. “This allows engineers to very quickly determine if you have a problem or not.”

The sensors are available in a handheld, standalone version and also as Smart sensors which can be integrated on to machines to take continuous readings that feed back data to a PLC or SCADA. To facilitate sensor coupling a variety of mounting methods are available including magnetic front face, adhesive bonding, bolt-on and screw-in. The MHC sensor has two modes, Standard and Super-slo mode which together allow measurements to be taken between 0.25 to 2500rpm.

To read the full article click here.

To find out more about the Kittiwake Holroyd product range follow this link to visit their website.

Acoustic Emission Monitoring: An opportunity not a threat

A recent feature article in Power Engineering magazine sees Martin Lucas, managing director of Kittiwake Developments, argue that Acoustic Emission (AE) technology should be welcomed as the next generation in vibration monitoring.

Condition Monitoring (CM) is transforming rapidly and so too must the mindset of CM practitioners and users. The article simplifies the science behind AE as well as looking at the key benefits provided, such as earlier warning of potential damage and shorter measurement periods.

Acoustic Emissions & Vibration Analysis

Acoustic Emissions & Vibration Analysis

Click this link to read the full article.