Operation of the Mel-Temp Apparatus

Line cord. Brings a.c. power to unit. Should be plugged into a live wall socket [See J. E. Leonard and L. E. Mohrmann, J. Chem. Educ., 57,119 (1980), for a modification in the wiring of older units, to make them less lethal. It seems that even with the three-prong plug, there can still be a shock hazard. Make sure your instructor knows about this ]. 

Voltage control. Controls the rate of heating, not the temperature The higher the setting, the faster the temperature rise. 

Thermometer. Gives temperature of sample, and upsets the digestion when you re not careful and you snap it off in the holder. 

Imagine yourself getting burned if you re not careful. Never assume the unit is cold. 

Set the voltage control to zero if necessary. There are discourteous folk who do not reset the control when they finish using the equipment. 

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