Functional features:

The free expansion number analyzer is an instrument and equipment that uses the free expansion number measurement method to determine the coking index of coal. It is suitable for use in coal, coking departments, and scientific research units.

The instrument uses resistance wire as the heating element and aluminum silicate fiber cotton as the insulation material, with fast heating speed and low energy consumption.

The instrument has superior temperature control performance, simple and reliable operation, and a unique temperature control method can effectively avoid temperature overshoot and burning of resistance wires.

Equipped with a focusing observation tube, the obtained focal blocks can be directly compared with a group of standard focal block side profiles with serial numbers.

Technical parameters:

■ Skill Rate: not greater than1000W

■ Temperature measurement range:0～999℃Accuracy:0.5Level resolution:1℃

■ Time measurement range:0～999minTime measurement accuracy:±30s/24hresolving power:1s

■ Heating requirements: comply withGD1341appendix

■ Electricity Source:220（1±10%）V 50Hz