Daewoo KOM-9F2CKS, Руководство по обслуживанию, Страница: 24 / 40

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MEASUREMENT AND TEST
1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT
Microwave output power can be checked by indirectly measuring the temperature rise of a certain amount of water
exposed to the microwave as directed below.
PROCEDURE
1. Microwave power output measurement is made with the microwave oven supplied at rated voltage and operated at its
maximum microwave power setting with a load of 1000±5cc of potable water.
2. The water is contained in a cylindrical borosilicate glass vessel having a maximum material thickness of 3mm and an
outside diameter of approximately 190mm.
3. The oven and the empty vessel are at ambient temperature prior to the start of the test. The initial temperature of the
water is 10±2˚C (50±3.6˚F).
If is measured immediately before the water is added to the vessel. After addition of the water to the vessel, the load is
immediately placed on the center of the shelf, which is in the lowest normal position.
It is measured immediately before the water is added to the vessel.
After addition of the water to the vessel, the load is immediately placed on the center of the shelf, which is in the lowest
normal position.
4. Microwave power is switched on.
5. Heating time should be exactly A seconds. (Refer to
table as following)
Heating time is measured while the microwave generator
is operating at full power. The filament heat up time for
magnetron is not included.
6. The initial and final temperature of water is selected so
that the maximum difference between the ambient and
final water temperature is 5K.
7. The microwave power output P in watts is calculated
from the following formula:
•
▲ ▲
T is difference between initial and final temperature.
• t is the heating time.
The power measured be B (Refer to SPECIFICATIONS) W±10.0 %.
P=4187 X
▲ ▲
T/t
• Heating time for power output:
A(second)
B(W)
70
600
64
650
60
700
56
750
52
800
49
850
47
900
44
950
42
1000
40
1050
CAUTION :
1. Water load should be measured exactly to 1 liter.
2. Input power voltage should be exactly specified voltage (Refer to SPECIFICATIONS).
3. Ambient temperature should be 20±2˚C(68±3.6˚F)
A(second)
B(W)
38
1100
35
1200
32
1300
30
1400
28
1500
26
1600
25
1700
23
1800