Operation Theory Of Microwave Oven; Installation Of Microwave Oven; Utensils Guide; For The First Use - Sunbeam SMW736 Instruction Manual

Operation theory of Microwave oven

1. Microwave is a kind of high frequency electromagnetic wave, which is commonly distributed in the nature.
But the existing form of microwave is dispersed so that it cannot be collected together for heating purpose.
The key component of magnetron of microwave oven will transform the energy of electricity to microwave
and huge energy of microwave field is established under the closed cavity. So the molecule of food is caused
to vibrate at very high speed and the friction heat produced will cook the food in a fast way.
2. There is 3 properly of microwave , that is
a) Absorbability, the microwave can cause the excess vibration of molecule of various food so as to obtain the
heating purpose. But the infiltration ability is largely depend on the size, thickness and properties of the food.
b) Penetrability, microwave can penetrate through ceramics, glass, temperature-resistant plastics. It is
required to use the containers whose material have good microwave penetrability to achieve best heating
result. See the below utensils guide.
c) Reflectivity, microwave would be reflected by the metal wall of interior cavity so as to establish an even
magnetic field, thus can prevent the overheating of partial area.

Installation of Microwave Oven

1) To ensure sufficient ventilation, the distance of back of oven to the wall or cabinet should be at least 10cm,
side of oven to the wall or cabinet should be at least 5cm, the top of oven to the ceiling or cabinet should be
at least 20cm.
2) Do not place any object on the top of oven.
3) The position of the oven shall be such that it is far from the TV, Radio or antenna as picture disturbance
or noise may occur.
3) The oven shall be so installed that the plug is accessible.

Utensils guide

It is strongly recommended to use the containers which are suitable and safe for microwave cooking. Generally
speaking, the containers which are made of heat-resistant ceramic, glass or plastic is suitable for microwave
cooking. But the following safeguards must be followed:
1. Never use the metal containers for microwave as spark is likely to occur.
2. The heat-resistant plastic is not suitable for long time cooking.
3. Never use the heat-resistant ceramic which are decorated with metal or glazed. .
4. Plastic film is not suitable for cooking chops and meat, as over temperature may do damage to the film.

For the first use

As there is manufacturing residue or oil remained on the oven cavity or heat element ,it usually would
smell the odor,even a slight smoke ,It is normal case and would not occur after several times use ,Keep
the door or window open to ensure good ventilation
So it is strongly recommended to operate as follows place a cup of water in the turntable ,setting at high
power and operate for several times
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