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8. POWER OUTPUT MEASUREMENT
(1) Microwave power output measurement is made
with the microwave oven supplied at its rated
voltage and operated at its maximum microwave
power setting with a load of (1000 ± 5) g of
potable water.
(2) The water is contained in a cylindrical
borosilicate glass vessel having a maximum
material thickness of 1/8” (3 mm) and an outside
diameter of approximately 7.6” (190 mm).
(3) The oven and the empty vessel are at ambient
Temperature (T0) prior to the start of the test.
(4) The initial temperature (T1) of the water is
(10 ± 1) °C (50°F) 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 turntable
which is in the lowest position and the
microwave power switched on.
(5) The time t for the temperature of the water to
rise by a value T of (10 ± 1) °K is measured,
where t is the time in seconds and T is the
temperature rise. The initial and final water
temperatures are selected so that the maximum
difference between the final water temperature
and the ambient temperature is 5°K.
(6) The microwave power output P in watts is
calculated from the following formula :
4.187 Mw(T2 –T1)+0.55Mc(T2 –T0)
t
is measured while the microwave generator is
operating at full power. Magnetron filament heat-up
time is not included. (about 3 seconds)
(7) The water is stirred to equalize temperature
throughout the vessel, prior to measuring the
final water temperature.
(8) Stirring devices and measuring instruments are
selected in order to minimize addition or removal
of heat.
P =
Where
P
is the microwave power output, in watts
Mw
is the mass of the water, in grams
Mc
is the mass of the container, in grams
T0
is the ambient temperature, in °C
T1
is the initial temperature of the water, in °C
T2
is the final temperature of the water, in °C
t
is the heating time in seconds, excluding the magnetron filament heat-up time.
Summary of Contents for LMV1813SB
Page 9: ...5 WIRING DIAGRAM KEY MATRIX 9 5 1 Wiring Diagram ...
Page 14: ... 14 6 4 Troubleshooting No Display or Dead ...
Page 17: ... 17 Keypad Failure MICOM Start key or EZ ON key works if the door is closed ...
Page 19: ... 19 No Heat No Cook ...
Page 46: ... 49 LATCH BOARD PARTS W102 4000 4002 4003 4001 4004 4002 EV ...
Page 50: ......