Accurate temperature monitoring is critical to ensure high quality and efficiency of the casting process as the quality of casting is highly dependent on the temperature of the molten metal.

Low temperatures result in poor quality of casting whereas too high temperatures results in energy wastage and may cause damage to the ladle refractory.

Mostly commonly thermocouples are used to measure temperature by dipping it in the molten metal in the ladle.

Although thermocouples can be used to measure the final tapping temperatures after the liquid has been poured into moulds, they cannot measure temperature of the pouring stream.

By the dipping approach, the operator needs to manually take the measurement and requires him to be in close proximity.

Thermocouples only give temperature readings at specific time points (when dipped).

Furthermore, tips need to be continually replaced resulting in ongoing consumables cost.