Low-Pressure Gradient Professional IC Option Metrohm's 850 Professional Anion MCS Low Pressure (LP) Gradient (2.850.2210) is suitable for new method development. The use of gradient chemistry (whereby the eluent strength is increased during the run) facilitates shorter retention times for late eluting peaks. Metrohm believes that correct selection of the column and optimum mobile phase allows most separations in a routine environment to be solved isocratically. Any gradient separation also requires an additional equilibration step at the end of the separation, where the mobile phase is returned to its original (weaker) state. The 850 Professional IC Anion MCS LP Gradient can be operated with sequential, chemical or without suppression for complete flexibility. The low-pressure gradient unit is suitable for method development as it can be used as an eluent selector for automatic switching between three different eluents so method development can be automatically performed overn...
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Dimplex Delivers Low Carbon Heating At Ecobuild Dimplex is showing a range of low carbon heating solutions at Ecobuild, designed to facilitate the specification and installation of renewable energy systems. Dimplex offers a wide range of heat pumps, covering ground, air and water source models. A new range of high efficiency air source models offers levels of efficiency comparable with ground source units, yet without the need for associated ground collectors. The range delivers CoPs in excess of 4.0 even at low ambient air temperatures and is available in a choice of five outputs from 9-40kW. The largest in the range, the LA 40 TU, offers a flow temperature up to 58C, although optimum performance is achieved at lower flow temperatures; 3.8 at A2/W35 and 4.4 at A7/W35. Where cooling capability is also required, the LA 35 TUR+ is a 35kW reversible air source heat pump, suitable for commercial applications. Giving flow temperatures of 60C, it can also be used in reversible mode for c...
REHAU Products Feature In Low Carbon House
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REHAU was a key partner in the opening of the first affordable, low energy, low carbon house designed for the mass market. The house has been built at South Lanarkshire College and was officially opened by John Swinney, cabinet secretary for Finance and Sustainable Growth in the Scottish parliament. Scottish Ministers hope that the house's micro-renewable and energy saving features will be used as a prototype for housing developers. REHAU has supplied a complete range of sustainable products for the project including its Raugeo ground source energy probes, Awadukt Thermo ground air heat exchanger, underfloor heating, Everloc leak-free plumbing pipework system, Raurain rainwater harvesting system, Raupiano sound insulated waste pipe and energy efficient PVC-U windows and doors. Martin Hitchin, chief executive of REHAU, commented: "The new house is one of the first buildings in Scotland to have achieved an A rated energy certificate yet it is at an affordable price which en...
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Sherborne Unveils Ultra-Low Range Load Cells Sherborne Sensors has announced the North American launch of the SS2/SS3 series of ultra-low range precision load cells, designed for applications where extremely low force measurements are required. The SS2/SS3 series offers full range measurement capabilities to 60g, with a 12mV/V full-scale output and virtually infinite resolution, enabling low forces to be resolved down to just a fraction of 1g. Bonded semiconductor strain gauge technology confers high sensitivity and eliminates the fragility associated with non-bonded strain gauge types. The robust design of the SS2/SS3 series features immunity to the effects of eccentric loading, side loading and bending moments, with precision measurement capabilities in either tension or compression mode. Low deflection and high-frequency response characteristics of the SS2/SS3 series are suitable for measuring both peak and transient forces over an operating temperature range of -20 to +90C.
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Three-Phase Stepper Motor Offers Low Vibration Astrosyn International has launched the MY4304-01 three-phase stepper motor, which is said to be suitable for the pan-and-tilt control of stage and other entertainment lighting. The company said the three-phase design is capable of exceptionally quiet operation with a low level of vibration, making it ideal for this type of application. A further advantage is said to be its higher precision, with a full step angle of 1.2 deg compared with the more usual 1.8 deg. The high torque, Nema size 24 hybrid motor also features special bearings for high-temperature operation and its modified shaft has a KK2 keyway. The MY4304-01 can be supplied with Astrosyn's P306 three-phase driver, which delivers an output current of 3.0-5.8A per phase from a direct current input of 18-45V. In addition, eight microstepping resolutions can be selected. Other possible applications where the motor's smooth running and low vibration are crucial include ...
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ARM Releases Ultra-Low-Power Physical IP Libraries ARM has announced the availability of ultra-low-power Physical IP libraries to drive the next generation of energy-efficient MCU devices. The ARM 0.18um ultra-low-power libraries (uLLs), coupled with the inherent power management advantages of the ARM Cortex processor family and the TSMC 0.18um embedded flash uLL/high-data-retention (HDR) process provides system-on-chip (SoC) designers with an additional reduction in power leakage by up to 10 times compared to 0.18um G implementations. The ARM libraries, combined with the ARM Cortex-M and Cortex-R profile processors, provide a alternative to companies that are accustomed to a multiple MCU system approach. Utilising an advanced ultra-low-power, single, 32-bit MCU and optimised ARM libraries for the TSMC 0.18um uLL Embedded Flash/HDR process, designers can increase their design efficiency and lower overall system cost. This combination of physical IP, processor architecture and manu...
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AGY Launches Low-Loss Glass Fibre Yarn AGY has introduced L-Glass, a low-loss glass fibre yarn for printed wiring board (PWB) applications. The low dielectric constant (Dk) and low dissipation factor (Df) properties of L-Glass fibre are suitable for designs requiring increased signal speeds and better signal integrity than traditional E-Glass/epoxy substrate materials. Scott Northrup, director of new business development at AGY, said: 'Substrate materials that provide low dielectric constant and low dissipation factor properties have become an essential element of high-speed digital systems such as mobile communication base stations, high-end routers and servers, and high-speed storage networks. 'As these systems move to higher processing speeds, substrates with low-loss properties are needed to ensure the speed and integrity of the signals,' he added. Low-loss laminates for high-speed applications have traditionally been produced in one of two ways. In one method, a ...
Toshiba HCV-5HA(L) Series Vacuum Contactors
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400 Amp 2300-7200 Volts (Medium Voltage) The HCV-5HA, the first vacuum contactor produced in Houston, Texas, was also the first Toshiba vacuum contactor to incorporate an electronic drive unit to power the operating coils. This solid state design eliminated the economizing resistors and improved the reliability of the coil circuit. The contactor is available in either electrically maintained or latched type version. The compact size and high performance, as well as being available in a drawout design, has helped many OEMs and end-users replace old air-break contactors and breakers. Toshiba Offers Superior Features Environment Resistant: Ideal for use in high dust areas. Switching arc is contained within the vacuum bottle, shielding the main contacts. Reduced Maintenance: Vacuum bottle contacts have long life with virtually no maintenance required. No External Surge Protection: Special main contact materials minimize chopping current. No surge suppresser required. Designed f...