NTC-22.05.13 “Study of first order phase transition – melting”

The training laboratory stand consists of a control unit and a heating unit.

The heating unit is a metal enclosure housing a cylindrical heating element. A crucible containing the sample metal is placed inside the heater. In this setup, the sample material is a POS-60 solder alloy. The temperature is measured using an integrated thermocouple.

The control unit is used for measuring the current and voltage supplied to the heating element, monitoring the temperature of the sample, and transmitting measurement data to a personal computer via USB (PC not included in the supply).

The front panel of the control unit includes:

• Heater power switch
• Cooling fan switch for the heating unit
• Digital temperature display

The rear panel contains:

• USB interface port
• Connector for the heating unit
• Power circuit fuse
• Power cord
• Main power switch

During the experiment, the heating unit is connected to the control unit, which in turn connects to a PC via a USB cable. When the heater is turned on, the sample begins to heat, and its temperature is displayed in real time on the digital indicator. Based on the data, students can determine the melting point and specific latent heat of fusion of the sample.

The stand comes with:

• Software;
• A set of teaching materials and technical documentation intended for the teaching staff.