Littleton Softening Point LBM-5
This device is designed for operational and laboratory measurements to meet the ISO 7884-6 standard CSN (method of determination of Littleton softening point of the glass). For more details see this standard.
Test specimen - fiber - is inserted into a vertical furnace, which is subjected to a controlled temperature regime. During a linear temperature rise, an extension of the lower end of the fiber is measured. Once the elongation speed reaches 1 mm / min, an instantaneous temperature measured inside the furnace is recorded, temperature program is stopped and the temperature returns to the default value.
Measurement of the fiber elongation takes place without any contact by CCD camera and a single lighting system.
The measuring cycle is controlled and evaluated by an external PC with custom software.
|Input voltage||230 V|
|Temperature range||300 - 1.000 ˚C|
|Temperature sensitivity||± 0,1 °C|
|Temperature display resolution||± 0,1 °C|
|Dilatation tracking range||5,25 mm|
|Dilatation tracking sensitivity||± 0,02 mm|
|Dilatation speed range||0,01 - 1 mm/min|
|Test samples||length||235 ± 1 mm|
|diameter||0,65 ± 0,1 mm|
This product was probably delivered to Czech Republic only so there is no documentation available in English for now. If you have any questions about this product, we are ready to answer any of your questions.
Inside this module, there is a sensor measuring the dilatation of glass fiber. Furnace is attached to the top cover. An operator is protected from heat by a simple heat shield.