New extended range of sieve standards
Building on the continuing success of the company’s glass microsphere sieve calibration standards, Whitehouse Scientific has now extended the range and resolution of the series
Building on the continuing success of the company’s glass microsphere sieve calibration standards, Whitehouse Scientific has now extended the range and resolution of the series. The aperture size of every sieve manufactured from 20 to 3350 microns can now be certified to NIST traceability. This extends the range’s capabilities from the 30 ‘primary’ sieves that originally could be calibrated to include a further 30 intermediate sizes.
This new development is important not only in precision particle size analysis, but also for accurate separation processes.
It is now possible, for example, to accurately distinguish between a 100 and a 106 micron sieve.
The Whitehouse sieve calibration standards are available in single shot bottles, minimising the possibility of sampling errors by the operator.
They can be used for sieve diameters from 40 - 450 mm diameter.
KTN highlights colloid and particle technologies
Advances in colloid and particle technologies are revolutionising sectors such as personal care, cleaning products, where increasingly, formulated products are dominating these sectors
Advances in colloid and particle technologies are revolutionising sectors such as personal care, cleaning products, paints and coatings, healthcare, specialty chemicals, agrochemicals, petrochemicals and food and drink. Increasingly, formulated products are dominating these sectors with novel creams, lotions, gels etc and incorporating nanoparticles. In this fast moving field, the best way to keep up is to be part of our KTN, the new Chemistry Innovation Knowledge Transfer Network! We will be running a colloid and particle technologies theme day on our stand at ACHEMA on Tuesday 16 May.
Come along to meet our team and learn about ACORN, our GBP4.2M project on nanoparticles, our e-learning packages used by more than 1500 people in over 30 companies and universities and in 13 countries and over 30 research partnerships.
See our turbine blade grown around a colloidal ceramic core.
If you would like to know more about how CIKTN can impact your business or leverage your technical and market capability, contact us in Hall 1.2 at Booth A17 in ACHEMA.
Knowledge Transfer Networks are an integral part of the UK Technology Programme, supported by the UK Department of Trade and Industry.
Chemistry Innovation KTN is hosted by the Royal Society of Chemistry and incorporates leading centres and collaborative organisations.
Dewpoint transmitters are stable and speedy
The Drycap DMT340 Series of dewpoint transmitters has been developed for demanding industrial applications where accurate and stable dewpoint measurement is important
The Vaisala Drycap DMT340 Series of dewpoint transmitters has been developed for demanding industrial applications where accurate and stable dewpoint measurement and wide variety of options are important. As a totally new feature in this product class, the DMT340 has a large numerical and graphical display with multilingual user interface. The display allows the user to easily monitor measurement trends and up to 1-year history.
The new DMT340 series consists of four models with different installation options and covering industrial dewpoint measurements down to -60C with an accuracy of +/-2C.
The transmitter series incorporates the latest generation of Vaisala Drycap sensor, which provides accurate, reliable measurement with best long-term stability and fastest response time available in the market.
The sensor withstands condensation, which makes measurement performance unmatched for low dewpoint applications that experience water spikes in the process.
The DMT340 has a low maintenance need due to the patented auto-calibration feature.
The auto-calibration detects possible measurement inaccuracies online and automatically corrects dry-end drift in the calibration curve.
The DMT340 has a wide variety of options, including a choice of analogue outputs, serial interfaces, and alarm relays.
A choice of mains or DC power and several optional mounting accessories make the instrument easy to install.
Humicap hand-held humidity and temperature meter
The Vaisala Humicap Hand-held Humidity and Temperature Meter HM70 is a user-friendly meter for demanding spot-checking humidity measurements
The Vaisala HM70 is a user-friendly meter for demanding spot-checking humidity measurements. The HM70 features the Vaisala advanced Humicap Technology, which is known for its accuracy, reliability and stability in industrial humidity measurement. It also supports field checking and calibration of Vaisala fixed humidity instruments.
Depending on the choice of probe, the HM70 measures relative humidity from 0 to 100 %, and temperature between -70 to +180 C.
The probe options include a long, stainless steel probe, ideal for spot-checking in ducts.
A small probe head with a 5-metre cable is available for use in difficult-to-reach areas, and for on-site calibration of Vaisala process transmitters.
Two probes can be used concurrently, including the Vaisala dewpoint and carbon dioxide probes.
The HM70 has a multilingual, user interface and a graphical LCD display with data logging capability.
The optional Windows software provides an easy-to-use interface to a PC.
An analogue output is also available.
Low power consumption provides long operation in the field.
These features make the HM70 a versatile humidity test instrument.
Ultra portable hand held dew point Hygrometer
The Model SADPmini automatic dewpoint hygrometer from Alpha Moisture Systems sets new industry standards for portable dew point measurement equipment
The Model SADPmini automatic dewpoint hygrometer from Alpha Moisture Systems sets new industry standards for portable dew point measurement equipment. Weighing in at less than 1.2kg this innovative, compact unit is truly portable and has been designed to fit neatly in the hand. Powerful microelectronics also provide automatic calibration with on-board logging for the capture and display of up to 8000 data points, with 20 user-definable TAG references.
Password protection is provided for maximum security of all data.
Designed for the measurement of trace moisture in gases and dry compressed air, the units have applications in the power utilities, natural gas exploration and production, air treatment plants, processing of chemical and pharmaceutical products, general engineering, electrical and electronics industries, together with both plastics and metal manufacture and a wide range of research and laboratory projects.
The robust, ergonomically designed housing incorporates the moisture sensor, signal conditioning circuitry, memory management, 128×64 dot graphics diplay, 5 key membrane keyboard plus on-board rechargeable lithium ion battery, This self contained digital unit is user friendly and eliminates the problems experienced by operators and technicians with the bulky size, weight and even analogue readouts associated with the previous generation of traditional dew-point meters.
Ultra portable hand held dew point Hygrometer
The new SADPminiEx Hygrometer combines the proven reliability of an ultra-high capacitance aluminium oxide dewpoint sensor in an ultra portable, compact and lightweight instrument
Intrinsically safe ultra portable hand held dew point Hygrometer Model SADPminiEx. The new SADPminiEx Hygrometer combines the proven reliability and excellence of an ultra-high capacitance aluminium oxide dewpoint sensor with state of the art electronics in an ultra portable, compact and lightweight instrument, that is certified intrinsically safe to European and International safety standards. The unit is certified intrinsically safe to II 1G/EEx ia IIC T4 for use in hazardous areas.
Automatic calibration and dry-down technology achieve very rapid, reliable and accurate readings every time.
Connectivity of the SADPminiEx provides a versatile solution with linear 4-20mA analogue output, serial RS485 communications and direct USB connection to PC all available.
The rechargeable battery will provide over 80 hours of continuous operation from full charge.
Chilled mirror hygrometer Model CMH
Self contained dew point hygrometers combine the inherent accuracy, reliability and long term stability of optical chilled mirror technology, with the convenience and ease of use needed in industry
These self contained dew point hygrometers combine the inherent accuracy, reliability and long term stability of optical chilled mirror technology with the convenience and ease of use of demanded by Industry. The Model CMH dewpoint hygrometers are designed for continuous monitoring applications where high accuracy and reliability are required. Dewpoint temperature measurement is made using a direct measuring sensor utilising a Peltier-cooled mirror, automatically held at the dew point temperature by a condensate detecting optical system, incorporating an LED light source and photo-detector.
The optical sensing bridge detects the change in light level when dew or frost forms on the mirror.
Subsequent cycles of negative feedback controlled heating and cooling refine the result to a highly accurate constant reading of sample dew point.
This technique is a primary measurement of the water vapour content of the gas.The mirror temperature represents the true dew point temperature and is measured by an embedded precision platinum resistance thermometer.
For dew points below 0C, the instrument displays the frost point.
Single channel dew point hygrometer
Model DS2000 is a single channel, on-line hygrometer designed to accurately measure dew point in process gases and dry compressed air
Model DS2000 is a single channel, on-line hygrometer designed to accurately measure dew point in process gases and dry compressed air. Advanced digital technology together with the industry’s leading ultra high capacitance aluminium oxide sensors make this the unit of choice for a wide range applications. The DS2000 features flexibility, high configurability and ease of use through its menu driven operation.
Other features include two independent, fully user programmable alarm contacts and open collector outputs.
Linear current or voltage (factory set) output is available as well as RS485 serial connection.
Hydrocarbon dew-point analyser gains CSA cert
The Michell hydrocarbon dew-point analyser Condumax II is now CSA certified for Class 1, Div 1, Groups B, C and D with a T4 temperature classification and an ambient temperature range -40C to +60C
Michell Instruments hydrocarbon dew-point analyser Condumax II is now CSA certified for Class 1, Div 1, Groups B, C and D with a T4 temperature classification and an ambient temperature range -40C to +60C. Launched last year, Condumax II has enjoyed unprecedented success in the field of hydrocarbon dew-point measurement in the natural gas industry. The CSA certification adds another accolade to the coveted analyser that was awarded ATEX certification in August 2004.
CSA is an internationally recognised body that has responsibility for the co-ordination of national standards in Canada and the US.
In order to achieve this accreditation, several criteria must be met.
* 1 Development of consensus standards which adhere to the principles used in Canada governing the consensus process.
* 2 Complying with criteria established for approval of National Standards of Canada.
CSA continually revise, refresh and address the changing requirements and emerging technologies of today.
Each standard is reviewed at least every five years as part of CSA on-going improvements to enhance trade and promote safety and well-being.
Condumax II has met the CSA criteria and can officially display this certification throughout Canada and the US.
Since its launch in September 2004, Condumax II has enjoyed global recognition and success.
Condumax II was awarded the ‘Technical Innovation of the Year’ prize at the annual Hazardex awards ceremony in March 2005.
It fought off fierce competition from 14 other finalists to claim the award, being described as: ‘The most innovative product or service introduced into the hazardous area market place with effectiveness being demonstrated via application details’.
In June 2005, Condumax II was brought to life in a free multi-media CD.
The CD was developed as part of a programme to increase awareness to the importance and relevance of hydrocarbon dew-point measurement in the natural gas industry.
Since the CD was developed, several hundred have been requested by engineers interested in the industry.
The CSA Approval certification now marks the beginning of another chapter in the Condumax II success story.
Humidity indicator plugs detect changes in RH
AGM Humidity Indicator Plugs for reusable or long-term containers readily detect internal changes in relative humidity (RH) using a choice of reversible or maximum indicating colour-change discs
AGM humidity Indicator Plugs have been designed for easy mounting on reusable or long-term containers and enclosures to readily detect internal changes in relative humidity (RH) using a choice of reversible or maximum indicating color-change discs. Quickly installed with common hand tools, they are leak-proof and shock and vibration resistant. Model TA350 for installation in rigid containers is of zinc-plated brass construction and the TA356 plug is of lighter weight, clear anodised aluminium construction for use in flexible barriers, but can be adjusted for rigid applications as well.
Both models mount through a 1.05” (26 mm) diameter hole and meet SAE AS26860 Type II.
They are furnished with a 40% RH indicator disc as standard, but can be supplied with either a single spot disc for any number between 10 and 90% RH (in multiples of 10) or a multi-level indicator showing a range of percentages in pie-sector or spot styles.
Reversible colour-change elements turn from blue to lavender to pink as the humidity increases and revert to blue when the humidity decreases.
They can be re-used as long as they are not exposed to humidity over 90% for periods of 36 hours or more, or become wet.
Long-term calibration and accuracy is to within +/-5% when read at 75F (24C), with a 2.5% correction factor for each 10F higher or lower.
Irreversible colour-stain maximum indicators for use in desiccated atmospheres warn that certain humidity levels have been exceeded and that the desiccant may need to be recharged or replaced.
The element alerts users to dangerous humidity levels by staining a white indicator disc a brilliant blue which may turn dark blue when exposed to excessive humidity for a minimum time period.
Both types of elements may be installed in the same plug-type housings, which are suitable for almost all applications for Method II packaging of MIL-P-116.
RFI/EMI shielding or CARC finish can be supplied as optional features.
Housings without elements may also be used as observation windows.