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Michell Instruments

Michell Instruments

H53

CB63NW Cambridgeshire
United Kingdom
www.michell.com

Michell Instruments is an international leader in high-precision sensing with 40 years’ experience in the field, specializing in instrumentation for dew point, relative humidity and oxygen analysis. The current product range includes dew point transmitters, chilled mirror hygrometers, relative humidity (RH) sensors, hydrocarbon dew point analyzers, moisture in liquid analyzers and oxygen analyzers. The company serves industries as diverse as petrochemical and pharmaceutical to power generation and food processing.

The product range includes:
High-precision ceramic moisture sensors to measure trace moisture in compressed air and processes.

Portable dew-point hygrometers for spot-checks of moisture in process systems.

Relative humidity transmitters and sensors for use in HVAC applications, pharmaceutical storage and other production processes where controlled environmental conditions are crucial.

Humidity calibration systems and reference dew-point hygrometers enable customers to carry out the calibration of portable hygrometers and relative humidity instruments in-house, saving on downtime and costs.

Products

Product news

  • Cost-effective oxygen analyzer for marine maintenance

    When a tanker ship is having maintenance, the leak check of the tanks is an important part of the final safety procedure. For this, the tanks are purged with an inert gas, such as nitrogen, and an oxygen analyzer is used to check for trace oxygen levels in the purged tank. Depending on the type of vessel, the maintenance crews will need to be able to detect oxygen levels from 1000 ppm down to 50 ppm.

    Portable oxygen analyzers, such as the GPR-1100 from Analytical Industries Inc. (AII), are the preferred tools used for this purpose. They are light-weight so easily carried to the point of use, need little power to operate (the GPR-1100 operates continuously for 30 days, over 8 hours with the pump running, on a single battery charge) and will measure down to less than 10 ppm O2. Users like the simple and intuitive operation paired with a robust casing which prevents accidental damage in a heavy industrial environment.

    To maximise the lifetime of the sensor, the GPR-1100 is available with quick-connect fittings to protect the sensor from ambient air when not in use, and users can expect sensors to last up to 24 months. Replacement sensors are easily available to buy and simple to fit.

    A range of sample conditioning options are available for filtration, pressure reduction and flow control. As not all tanks have pressures positive enough to generate a flow to the analyzer, the GPR-1100 can be supplied with an internal pump.

    The instrument is available with full ATEX certification for use in hazardous areas.

    http://aii1.com/product/ppm-oxygen-analyzer-portab...

  • Cost effective PPB oxygen analyzer for gas purity in semiconductor applications

    Michell Instruments is now offering to customers in the semi-conductor and gas manufacturing industries a class-leading trace oxygen analyzer for ensuring the quality of ultra-high purity gases.

    Analytical Industries’ PI2-UHP Oxygen Analyzer is both cost-effective and reliable. With a low detection limit of less than 100 PPT, it is designed to measure trace-level oxygen contamination in high-purity gases. The Pico-Ion electrochemical sensor is maintenance free and routine calibrations are quick and simple thanks to the built-in auto-calibration and sample handling system. There is no need to add electrolyte.
    To ensure the zero gas is completely free of O2, an oxygen scrubber is included as part of the integrated sampling system. To protect the sensor, a sample by-pass is provided to isolate the sensor from high oxygen levels during, start-up, sample line switching and during maintenance.

    http://aii1.com/product/gpr-1600-uhp-series-ppm-o2...

  • Portable PPM Oxygen Analzyer for Pipe Welding Applications

    Advanced Instruments Inc., a leading manufacturer of oxygen sensors and analyzers, has created a Pipe Weld Purge PPM Oxygen Analyzer specifically for pipe welding applications.

    Accompanied by a thoroughly tested advanced electrochemical oxygen sensor, the GPR-1000 WP delivers precise oxygen readings that allow welders to create quality work. The sensor is specific to oxygen and provides highly reliable trace PPM readings in seconds.
    Professionals recommend oxygen levels below 70 PPM for stainless steel welding, below 50 PPM for titanium welding and below 10 PPM for the semiconductor industry to prevent oxidation, discoloration and coking. The GPR-1000 WP is the ultimate companion as it can provide accurate oxygen readings in all welding applications, where accuracy and reliability are crucial to quality work.

    The GPR-1000 WP is characterized by a unique bypass system, which maintains the oxygen sensor at trace PPM oxygen levels. This enables the analyzer to come online in seconds from bypass mode. Proper use of the bypass system minimizes downtime and significantly increases welder productivity.

    Advanced Instruments Inc. strives to provide customers with high quality and cost-effective solutions to gas analysis. The GPR-1000 WP is no different with a low cost of ownership at less than 40% less than competitive analyzers and requires little to no maintenance.

    http://aii1.com/product/gpr-1000-portable-trace-pp...

  • Securing energy for the future: Michell’s OptiPEAK TDL600 used in research programme

    Michell Instruments is partnering with VSL, the national metrology institute of The Netherlands, on a jointly EU and EURAMET funded project to increase the use of energy from renewable sources.

    The European Community has set a target for 20% of its energy consumption to come from renewable sources by 2020. One of the research projects set up to achieve this is Metrology for Biogas, a three-year programme which began in June 2014. Its purpose is to devise and validate traceable methods for determining key impurities, moisture, particulates, calorific value, and density in biogas and bio-methane so it can be used as a mainstream alternative to natural gas.

    VSL is working on the measurement of moisture and water dew point calibration. As an industrial collaborator, Michell Instruments has provided a moisture analyser – the OptiPEAK TDL600 – for assessment testing. It uses advanced tuneable diode laser absorption spectroscopy, to provide a fast response to changes in moisture concentration whilst being able to withstand the acidic nature of the biogas. Because the sensor uses laser light to measure moisture content, there is no contact between it and the biogas – meaning that there is no long-term degradation of performance or stability of the analyzer from the corrosive elements of the gas.

    The tests have been conducted on three compositions representing biogas, with 20% concentration of carbon dioxide in methane, as well as processed biomethane with reduced CO2 concentrations including 100% methane. Moisture contents in the range 10 to 1,000 ppmV were generated within the VSL primary high-pressure humidity generator. Mr Andrea Peruzzi of VSL commented, ‘The Michell TDLAS analzyer proved helpful to further our understanding of the relationship of dew-point temperature to moisture concentration in biogas which exhibits non-ideal behaviour.’

    The testing work is now complete, and the results will be published in a paper to be presented at NEN Gas Analysis, Rotterdam in June 2017.

    http://www.michell.com/uk/products/optipeak_tdl600...

  • Ensuring safety of biogas production with Michell’s thermo-paramagnetic oxygen analyzer

    A major Scandinavian producer of Biogas has selected Michell Instruments’ XTP601 oxygen analyzers to monitor O2 levels for safety and quality at two sites in Sweden.

    The XTP601 Oxygen Analyzer is used to continuously provide readings of the levels of O2 in the process. In general, the lower level of oxygen in these applications should be no more than 0.5%, with a danger level of 4%. The XTP601 has alarms to shut down the plant if oxygen levels approach the danger level to ensure safety.

    One plant produces biogas from sewage and while the other uses food and garden waste, however the biogas from both plants is used as a transport fuel. Despite the different feedstocks, the process of upgrading the gas for use is the same. The biogas must be upgraded to 95% methane, which will give it a high enough calorific value to produce the energy required for transport fuel. It will also make it highly flammable – which is why it is important to keep levels of oxygen low during the process. The XTP601 provides stable, accurate readings and is capable of measuring oxygen from 0-1% up to 0-50% as well as suppressed zero ranges, such as 90-100%.

    There are three options for configuration: a transmitter; a transmitter with status LEDs or a full display version. All of these options may be rated for either safe or hazardous area use, with hazardous area classifications available for ATEX, IECEx and CCSAUS. The full display version of the XTP601 has a touch screen interface to enable easy operation without needing to remove the lid. This means that users can calibrate, change settings and interrogate the instrument in the hazardous area without the need for a ‘hot permit’ or permission to carry out work. Menus allow easy access to information on oxygen concentration; analyzer status; a graph showing oxygen trends over a user-defined time period; alarm history; minimum and maximum concentrations and other parameters to aid diagnosis of plant conditions.

    http://www.michell.com/uk/products/xtp601.htm

  • Compact, stand-alone chilled mirror hygrometer provides boost for small labs

    Since its launch in 2012, the S8000 RS from Michell Instruments has proved to be a popular reference instrument with smaller calibration laboratories enabling them to generate extra revenue by extending their service to humidity calibration.

    The reason? It is the smallest and lightest hygrometer in its class, which enables small calibration laboratories to extend their ranges – but without also needing to extend their premises. The easy-to-use instrument also suits in-house reference labs at larger organisations.

    The S8000 RS Precision Chilled Mirror Hygrometer measures dew points down to -90°C (0.1ppmV) with an accuracy of ±0.1°C. However, unlike many other hygrometers in this class, no additional external cooling equipment is needed to accurately reach these dry dew points. Even without all the extra cooling equipment, the S8000’s nearest competitor in performance weighs 28 kg more than the S8000. Designed to fit into a standard 17” rack, the S8000 is the most compact, convenient and – because it doesn’t need extra equipment to work – the most cost effective hygrometer in its class.

    This compact design was possible because of a sophisticated new optical system that detects very small changes in moisture condensed on the mirror surface. This guarantees high sensitivity and fast response when measuring low dew points.

    With a high-contrast LCD touch screen, the S8000 RS is easy to operate and interrogate. USB or Ethernet connections are supplied as standard to enable remote operation and data logging via a PC or network. As with all Michell chilled mirror hygrometers, the S8000 RS is available with a 5-point calibration, traceable to national standards, with UKAS accredited calibration available.

  • Michell Instruments offer dew-point solutions on compressed air systems and much more

    Michell Instruments offer dew-point solutions on compressed air systems and much more

    Michell Instruments’ range of dew-point transmitters, relative humidity instruments and oxygen analyzers are designed to make many routine maintenance and monitoring tasks quick and simple.

    Visit them on stand E27 at Maintec to find out how effective measurement and control of moisture can save money and time on maintenance and repairs in a wide range of processes.

    Included on the stand will be Michell’s smallest and fastest portable dew-point hygrometer, the MDM300. At just 21cm by 17cm, weighing 1.5kg, and with a battery life of up to 48 hours typical usage, it enables the user to take field moisture measurements with the minimum of fuss. The fast response and internal data logging means that many more measurements can be taken each day – improving productivity and reducing down time.

    Visitors to the stand will also be able to see the MDM300 I.S – an intrinsically safe portable for use in hazardous areas.

    Michell’s Easidew Dew-Point Transmitters are ideal for a host of applications where constant monitoring of moisture levels are key – such as compressed air systems and dew-point control of desiccant dryers. All Easidew Transmitters are available as part of a calibration exchange program, which enables users to keep up-to-date calibration certification with virtually no downtime and at a fraction of the cost of buying new replacement sensors.

    In the relative humidity range, the I7000 interchangeable module makes maintenance as easy as changing a light bulb, while the PCMini52 RH probe has encapsulated electronics which make it reliable in high humidities over long periods of time.

    Visitors to the Michell stand can see the MDM300 in action and pick up a free Hygrometric slide rule.

  • Good things come in small packages - Small, accurate and reliable RH and temperature measurement probe from Michell Instruments

    The Michell PCMini52 relative humidity (RH) and temperature probe provides excellent accuracy and stability in a package that is small yet tough for harsh environments. Widely used for applications including controlled environments, precision manufacturing and meteorology, the instrument comes with a range of options to match usage requirements.

    The PCMini52 utilises a thin-film capacitive sensor, designed for extremely fast response and long-term stability for repeatable measurements. The design provides a large capacitive response to small changes in humidity which, in turn, makes the sensor highly sensitive to even small changes in humidity. Digital temperature compensation further ensures excellent device linearity. The PCMini52 electronics are coated in a protective resin to ensure high reliability even in damp and harsh environmental conditions and it has the option of a stainless steel housing for added strength and robustness.

    With a miniature space envelope of 80mm in length and 12mm diameter, this versatile probe has a range of output signal options and offers %RH, dew-point, absolute humidity or wet bulb along with temperature readings. The extremely low power consumption of the probe enables it to be used with a battery or for wireless operation if required – ideal for remote applications such as weather stations.

    Michell Instruments is a global leader and pioneer in humidity measurement. It employs some of the key experts in the field of relative humidity measurement and offers one of the widest range of RH products and technologies to match and optimize a process. The PCMini52 packages reliability and flexibility into a miniature design: the resulting low power consumption and fast settling time yield high-performance and effective humidity measurements to meet a wide range of needs. Its excellent reliability is further supported by a large network of service and support experts to ensure application requirements are met and processes kept running at maximum efficiency.

    http://www.michell.com/uk/products/pcmini52.htm

  • Accurate relative humidity and temperature measurement for harsh environments

    Maintaining reliable RH measurements in harsh or corrosive environments is notoriously difficult as the conditions themselves degrade the sensors and equipment, often in short time-periods. Michell Instruments' DT722 RH and temperature transmitter provides a solution to this problem.

    To best meet specific application needs, the DT722 series is available in digital (DT722) and analogue (DT722-X18) models. The digital electronic platform version of the DT722 gives high performance measurement with excellent RH accuracy and delivers reliable, consistent and accurate results even over changing ambient conditions.

    The DT722-X18 is an analogue through path measurement device with exceptional mechanical toughness. Field adjustment is remarkably quick and easy, making it a good choice for use in all types of aftermarket service and a robust favourite with the nuclear industry. Quick and simple serviceability and high stability add to the appeal of this sturdy device.

    The DT722 transmitters have been designed for use in severe industrial environments. They are exceptionally reliable and robust with a strong, stainless steel housing providing protection against rough handling or accidental damage, IP65 (NEMA 4) ingress protection and a probe which can withstand temperatures up to 150°C.

    The transmitters are for duct mounting in the most suitable place for the application. They have excellent chemical resistance for longer use in contaminated areas and are available with a selection of filter materials to afford best protection to the sensors based on specific environmental conditions.

    Michell products are designed for high performance, long term stability and flexibility in application – all to provide the user with exceptional peace of mind to keep processes efficient and quality high. Reduced calibration requirements keep the cost of ownership low compared with many equivalent technologies and minimal self-heating within the instruments ensures high precision measurement and low errors due to changes in temperature. Configurable outputs and a wide range of options give the user the flexibility to get the best match for a process.

    Michell has a successful history of working closely with its customers to provide customised solutions where needed. Michell delivers innovative solutions that meet real-world needs and the DT722 series is truly designed to give assured, reliable performance in robust packages for the harshest of industrial environments.

    Michell Instruments is a pioneer of relative humidity (RH) and dew-point measurement technology with continued development programmes and over 35 years of experience. It offers a wide range of RH measurement products to best suit specific process requirements along with in-depth application support and customisation services if needed.

    http://www.michell.com/uk/products/dt722.htm

  • Affordable Dew-Point Transmitter Designed for OEM Dryer Manufacturers

    The SF52 dew-point transmitter from Michell Instruments provides a heavy-duty and cost-effective solution to monitor moisture content in industrial dryers. The instrument is easy to install and has an exceptionally low cost of ownership with no maintenance required during its lifetime use of typically five to seven years. Its robustness really gives a ‘fit and forget’ solution with benefits that make this a smart and appealing choice for use in industrial dryers.

    The SF52 offers an affordable solution for dew point measurement for harsh environments. Water content within compressed air can cause significant problems to its users and protection against this, through over-specified dryers, adds to operational costs. Direct and accurate measurement of dew point helps to optimise dryer performance and operational efficiencies while protecting against moisture interfering with downstream processes.

    The SF52 transmitter covers the key dew-point measurement range of -40 to +60°C for most common industrial drying applications, used in processes such as the manufacture of plastics. The products are heavy duty and have an internally recessed element, which protects the sensor element, ensuring reliability and performance in harsh process media conditions. They have enhanced resistance to chemicals which preserves reliable, long-term performance and accuracy over a wide temperature range. The transmitters are issued with a 3-point calibration certificate and are designed to improve dryer performance. A new, high capacity manufacturing system has been installed to meet the volume demands for the SF52 dew-point transmitter. These affordable instruments are available with short lead-times and come with the peace of mind of quality manufacturing and the support of a world leader in humidity and dew-point measurement.

    Michell Instruments offers a wide range of humidity and dew-point instruments to match application requirements. Continuous product developments and innovations are based on a true understanding of processes where these instruments are used. Michell is able to offer complete application support or, if required, customisation services to meet specialist needs. The company works to recognised standards for quality and calibration and provides technology from the sensor tile to complete moisture calibration rigs.

    http://www.michell.com/uk/products/sf52.htm

  • Global demand for humidity and gas analyzers boosts growth

    Michell Instruments doubles manufacturing space in the UK

    Michell Instruments, the UK-based manufacturer of humidity and moisture measurement instrumentation, has begun work to expand its head office and UK manufacturing site. The increased capacity – from 20,000 sq ft to 40,000 sq ft – will include new production and development facilities, as well as increased office space.

    The decision to expand the site is due to Michell"s rapid growth during the last four years, and will ensure the company continues to meet the growing global demand for their products. Michell"s expansion is creating a number of job opportunities in the East Cambridgeshire region – ranging from experienced engineers and skilled production staff to clerical staff.

    "We are expecting to continue our growth at healthy double digits rates in the years to come," said CEO, Mike Bannister. "The expansion will enable us to drive forward with many interesting projects, such as further collaboration with Cambridge and Oxford Universities to research new sensing technologies." The expansion includes a new world-class calibration laboratory and research facilities to enable these joint research projects with academic institutions around the world.

    Michell Instruments was established in Cambridge and has since developed extensive expertise in the field of moisture measurement and calibration spanning almost 40 years. More recently, the company has built on this knowledge to expand into new markets with a range of relative humidity instruments as well as oxygen analyzers. A key part of the extension will be to include a specialised production area for the oxygen instruments. Another key area of growth for Michell has been in the process and energy sectors. The company"s analyzer systems perform key functions in these industries, making processes cleaner, safer and more energy efficient. The new factory will increase the production area for these systems, improving facilities for design, building and testing.

    "No matter where you look at our business, we feel good about it," said Mr Bannister. "The diversification into other areas of gas analysis helped us to maintain a strong market position. Having a broad base allows us to be able to move into any area of gas measurement and be able to understand it quickly."

  • New RH hand meter from Michell is a simple reference for humidity calibration

    Michell Instruments new RH hand meter, the MDM25, is an ideal reference instrument for use with humidity generators when calibrating RH probes.

    Large users of RH probes – such as laboratories, pharmaceutical companies, semi conductor manufacturers – find that in-house calibration of probes is highly cost-effective when compared to sending out sensors to an external laboratory for calibration and/or adjustment. The MDM25 provides a useful secondary reference for use when performing calibrations with a humidity generator, such as Michell’s S503, and is a cost-efficient alternative to a chilled mirror reference, such as the Optidew Vision.

    The display orientation of the MDM25 can be inverted so it can be read easily when the fixed probe is inserted into the S503. With a wide range of probes the MDM25 can be used easily and comfortably in many situations.

    The MDM25’s polymer-based sensor responds rapidly to changes in humidity and is coupled with a thermistor for accurate temperature measurement. Other measurement parameters which can be derived from temperature and humidity are available on the handheld: absolute humidity, wet bulb temperature and dew point.

    http://www.michell.com/uk/products/mdm25.htm

  • Michell Instruments offers solutions for easy maintenance on compressed air systems

    Michell Instruments’ range of dew-point transmitters, relative humidity instruments and their oxygen analyzers are designed to make many routine maintenance and monitoring tasks quick and simple. For the first time, Michell are exhibiting a range of these products at Maintec, on stand C23.

    http://www.michell.com/uk/news/maintec.htm

  • RH probes provide peak performance for meterologists

    Michell Instruments’ reliable meteorological probes are helping to predict the weather from the top of Europe’s second highest mountain peak.

    http://www.michell.com/uk/news/RH_probes_provide_p...

  • Michell retrofits older AIOx moisture analyzers

    Aluminium Oxide and Ceramic moisture transmitter-based analyzers are the most widespread process moisture measurement systems used in thousands of installations world-wide. They are robust, simple to operate and maintain, offering excellent calibration traceability at lowest cost per channel.

    To meet the market demand for technology improvement, Michell Instruments launched a new Promet I.S. process moisture analyzer that can be retrofitted in almost all existing AlOx or Ceramic transmitter based trace moisture or dew point measuring analyzer systems.

    http://www.michell.com/uk/products/promet_is.htm