Home » Isotech fluidized calibration bath 875
The Isotech fluidized calibration bath is better than dangerous salt baths in every respect: wider temperature range, better uncertainties and less dangerous. The bath is the result of 20 years of research and development in flow cartridges, powder technology and filtration.
Recent developments have expanded the possibilities of the baths even further and it’s ideally suited for liquid in glass thermometer calibration. The filter and exhaust system is new. This is to cope with the increased amount of powder needed for liquid in glass thermometer calibration.
The result is a calibration system to national standards. The performance is matched only by heat pipe techniques. The profiles are so small that the bath is successfully used by the national laboratories for research on fixed points of Indium by aluminum. Compared to mode 2, sigma uncertainties of ±0.020°C at 300°C and ±0.035°C at 660°C can be obtained.
With a redesign, the filter and exhaust system have to cope with the increased level of powder required to calibrate the Liquid in Glass thermometer to achieve this. The result is a calibration system that meets national standards. The performance is by the heat pipe technology. The profiles are so small that the bath is in use with great success by the National Laboratories for fixed points of Indium by Aluminium. In comparison mode 2, sigma uncertainties of ±0.020°C at 300°C and ±0.035°C at 660°C can be obtained.
This is the only product capable of covering a very wide temperature range without changing the thermal medium. Like most fluidized baths, the 875 bath consists of a container of aluminium oxide powder with a porous base plate. Sufficient air through the bottom plate to allow the powder to flow in a fluidized state. This results in buoyancy effects and good heat transfer characteristics.
A disadvantage of many fluidized baths is that good temperature stability and uniformity cannot be achieved in the instrument itself. They are obtain and use large metal blocks. Or by slowing down the fluidizing effect in the powder around the workpiece – either locally, or by fully folding the bed to the required temperature, this is not the case with the 875. A full evaluation report is available on request.
Open the datasheet for detailed specifications of this product.
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