47 Thermoelectric Cooling
Thermoelectric cooling utilises Peltier effect to generate a heat flux between the junctions of two different types of materials. A Peltier thermoelectric heat pump from A. Krüss Optronic is a solid-state active heat pump that transfers heat using electrical energy from one side of the device to the other side against the temperature gradient.
This type of instrument is also commonly referred to as a Peltier heat pump, solid state refrigerator or thermoelectric cooler. Peltier devices are commonly used for cooling purposes, since heating can be more easily and economically achieved by other techniques.
On the other hand, when a single device is to be used for both heating and cooling, a Peltier device may be desirable. Peltier devices can also generate electricity if a temperature difference is sustained between the two sides.
PT 31 Adjustable Electronic Peltier Thermostat is a versatile, high-performance instrument. In one application, for example, PT 31 Adjustable Electronic Peltier Thermostat can be used to set the correct refractometer temperature. PT 31 Adjustable Electronic Peltier Thermostat is extremely robust, compact and easy to operate.
Thanks to its small footprint, PT 31 Adjustable Electronic Peltier Thermostat does not take up valuable space in the laboratory.
Circle no. 98 Onwards and Downwards?
As PS Analytical continues to make progress into complex and challenging applications for mercury it is definitely a case of ‘onwards and downwards’ as technology advances and lower detection levels are achieved. The progression of technology without compromising the excellent sensitivity and reliability offered by the PSA instrumentation cements PS Analytical’s position at the cutting edge of environmental monitoring for trace Mercury determinations. Recently a new online Mercury analyser has been installed in the field, for the measurement of Mercury in Liquid hydrocarbons. The challenge as with all analyses, is first to provide a fully representative sample and then to provide a valid measurement. The system design is based on PS Analytical proven Natural Gas Analyser and incorporates a flash vaporisation unit, which converts the liquid into the vapour prior to treating in a similar fashion to that used for Natural gas. The on-line system can be configured to fulfil a range of safety options and can be integrated into process computer systems to provide the site specific control features required.
New FTIR Academic Choice Program
A2 Technologies is offering a special program to enable researchers and teachers in college and universities to access the potential of the versatile Exoscan FTIR technology. For a limited time, academic personnel that order an Exoscan system will have a choice of a second sampling interface, the Exoscan Docking Station or Panorama Pro data analysis software, at no additional cost. Exoscan, with its Docking Station, is the only FTIR that is a fully capable bench top lab system that transforms into a hand-held, battery operated system for field-based applications. Thus, the system is essentially two spectrometers for the cost of one. Exoscan has the performance expected from a high quality lab system, yet also has the ruggedness and size required by users who wish to work in the field. With availability of ATR, diffuse, specular and grazing angle reflectance sampling interfaces, Exoscan measures a broad range
of samples and is ideal for gathering infrared spectral data in the field and/or analysing samples in the lab. With its comprehensive range of sampling options, it functions as a powerful teaching system that enables students to understand a wide range of FTIR applications. Panorama Pro provides the user access to an exceptionally wide range of spectroscopic data analysis capabilities.
Circle no. 101 Circle no. 99
Circle no. 100
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