CHAPTER I
PRODUCT DESCRIPTION
EXPLANATION OF MICROWAVE COOKING
The Sharp Counter Top Microwave Oven uses microwave
energy to produce heat in the food to be cooked. Unlike
conventional ovens microwave energy will cook foods
without applying external heat.
Microwaves, which are short electromagnetic waves of
RF (radio frequency) energy, pass through materials
such as glass, paper, china and most plastics. Materials
such as metal and aluminum foil tend to reflect
micro-
waves and may be used only as recommended in the
cook-
Materials with a high moisture content, like most foods,
wiIl
absorb microwave energy. As the microwave energy
at a frequency of 2450 Megahertz enters the food, the
molecules align themselves with the energy. Because the
microwaves are changing polarity every half cycle, the food
molecules are changing direction every half cycle or
oscil-
lating back and forth 4,900,000,000 times per second. This
high speed oscillation causes friction between the
mole-
cules,
thereby converting the microwave energy to heat.
ing instructions.
SPECIFICATIONS
Power requirements
I
Power consumption
Microwave output power
Case dimensions
Width
Height
Depth
Cooking cavity dimensions
Width
Height
Depth
Turntable diameter
650W (2 litre water load)
627mm
400mm
458mm
395mm
260mm
422mm
385mm
Control complement
Cook Switch
60 min. Dual Speed Timer
Variable Cooking Control
Repetition Rate:
HIGH:
240V
50Hz
Single phase, 3 wire earthed
1.3kW
Full power throughout the cooking time.
MED. HIGH:
23.2 sec. ON,
6.8 sec. OFF, approx. 70% of full power.
MED.:
16.5 sec. ON, 13.5 sec. OFF, approx. 50% of full power.
MED. LOW (DEFROST):
9.8 sec. ON, 20.2 sec. OFF, approx. 30% of full power.
LOW:
5
sec. ON, 25
sec. OFF, approx. 10% of full power.
Approx. 28kg
4
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