10 Analytical Instrumentation Te Power of Termodynamics


The new PRESTO from JULABO (Germany) represent the state-of-the-art for modern laboratories. These instruments cover a working temperature range of -92 to +250 °C with high cooling and heating capacity. Maximum heating capacity can also be adapted to fluctuations in the mains power supply. Highly efficient components give these instruments the ability to compensate for exothermic and endothermic reactions with extraordinary speed. The new PRESTO units are extremely robust and work reliably even if the ambient temperature climbs as high as +40°C.


Magnetically-coupled pumps in the PRESTO units are powerful and maintenance-free. Lab users benefit from high flow rates, constant pressure, and a controlled build-up of pump pressure. The operator can adjust pump capacity by selecting one of four stages or by entering a specific pressure. The closed pumping loop isolates the heat transfer liquid from ambient air, preventing penetration of moisture and oxidation.


The integrated 5.7-inch industrial color TFT touch screen is one of the identifying characteristics of the new PRESTO. It gives the user a clear and well-organised view of important information while greatly improving user- friendliness. Fingertip control via the new touchscreen makes it incredibly easy to operate the new PRESTO units. Password management for one administrator and up to two additional levels of authorisation makes it easier to manage laboratory procedures.


For example, the new PRESTO units use one and the same heat transfer liquid across the entire working temperature range. The filling opening for the liquid is easily accessible on the top side of the unit. Once in operation, the new PRESTO units are whisper quiet and barely audible in a laboratory. Like all JULABO instruments, the new PRESTO have closed side panels without ventilation slits. This reduces to a minimum the amount of space needed to operate the units because any other lab instruments may be placed directly next to the PRESTO.


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Multiple interfaces permit remote control of the PRESTO across networks and in superordinated control systems. The integrated Ethernet interface provides complete access to all of PRESTO’s operating functions. Yet another control option is the USB interface, a first in dynamic temperature control systems. When combined with the proven JULABO WirelessTEMP solution, it permits completely wireless control of the instrument.


JULABO customers can depend on competent pre-sales support and access to additional services that ensure they always receive the most optimal solution to their temperature-control needs. JULABO offers its customers installation and calibration services, documentation for instrument qualification, and user training so users can start using their instruments right away and benefit from years of safe operation.


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Both PAC’s (USA) Herzog HCP 842 and ISL FPP 5Gs now fully comply with the new standard, EN 16329, “Determination of CFPP for Diesel and Domestic Heating Fuels – Linear Cooling Bath Method” recently released by CEN (European Committee for Standardisation). The EN 16329 is now also listed in the EN 590 European Diesel Fuels Specification as an alternative technique to EN 116:1997.


The Cold Filter Plugging Point (CFPP) is a critical property that predicts the lowest temperature at which a fuel will freely flow through filters in diesel engine system. CFPP analysis is crucial for fuels since it provides an accurate means of judging gas oil behaviour at temperatures lower than possible with the cloud point test method. This new method uses a refrigeration device with linear cooling instead of the conventional stepped bath, which displayed enhanced precision during round robins conducted in 2011.


With the Herzog HCP 842 and ISL FPP 5Gs, PAC provides the most complete offering for CFPP determination of diesel fuels. The HCP 842 delivers robust and accurate measurements through a smart microprocessor, with easy connection to any external chiller. While the ISL FPP 5Gs combines a powerful built-in cooling system and simplicity of operation to allow the users immediate testing, anytime and everywhere. Both instruments provide high levels of flexibility with customisable test procedures (user-defined or according to standards) and also multi- networking capability - making them the ideal solutions for R&D applications and busy laboratories.


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New 5th Generation MiniFlex Benchtop X-Ray Diffractometer (XRD)


The 5th generation MiniFlex from Rigaku (USA) is a general purpose X-ray diffractometer that can perform qualitative and quantitative analysis of polycrystalline materials. The MiniFlex is available in two variations. Operating at 600 watts (X-ray tube), the MiniFlex 600 is twice as powerful as other benchtop models, enabling faster analysis and improved overall throughput. Running at 300 watts (X-ray tube), the new MiniFlex 300 does not require an external heat exchanger. Each model is engineered to maximise flexibility in a benchtop package.


Ideally-suited for today's fast-paced XRD analyses, the new 5th generation MiniFlex delivers speed and sensitivity through innovative technology enhancements such as the optional D/teX high speed detector coupled with the new 600W X-ray source. The optional graphite monochromator, coupled with the standard scintillation counter, maximises sensitivity by optimising peak-to- background ratios. If resolution is paramount, incident and diffracted beam slits can be selected to provide the desired resolution. For high sample throughput, MiniFlex is the only benchtop XRD system with an available sample changer. Whether teaching X-ray diffraction at college and university level, or routine industrial quality assurance, the MiniFlex delivers both performance and value.


For More Info, email: email: 538ad@reply-direct.com OCTOBER / NOVEMBER 2013 • WWW.PETRO-ONLINE.COM 25561pr@reply-direct.com


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