Models and Specifications:

• Model 333F 120°F to 500°F 50°C to 260°C (110V)
• Model 334F 120°F to 500°F 50°C to 260°C (220V)
• Dual Scale
• Accuracy ± 2% of Full Scale
• LCD Digital Display
• Power Source required 110V or 220 AC 50-60Hz
• Shipping Weight 14 lb. (6.4kg)

The melting point is the temperature at which a substance changes its state from solid to liquid. Under standard atmospheric pressure different pure crystalline solids will each melt at a different specific temperature; thus the melting point is a characteristic of a substance and can be used to identify it. When heat is applied continuously and in sufficient quantity to such solids, the temperature rises steadily until it reaches the point at which liquefaction occurs.

Here the rise ceases and no further change in temperature is observed until all of the substance has been converted to liquid.The heat being applied to the substance at that temperature is consumed in bringing about the change in state, and none is available to raise the temperature of that part of the substance already liquefied until all of it has changed to the liquid. If heat is still applied when liquefaction is complete the temperature will begin to rise again.