Measurement of Microwave Power Output

MEASUREMENT OF MICROWAVE POWER OUTPUT

•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.

•The water is contained in a cylindrical borosilicate glass vessel having a maximum material thickness of 3 mm and an outside diameter of approximately 190mm.

•The oven and the empty vessel are at ambient temperature prior to the start of the test.

•The initial temperature (T1) of the water is (10±2)°C. 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.

•The time T for the temperature of the water to rise by a value ∆T of (10±2)° 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°.

•The microwave power output P in watts is calculated from the following formula:

	P =	4187 x (∆T)
	P =	T
		T

is measured while the microwave generator is operating at full power. Magnetron filament heat-up time is not included. (about 3 sec)

•The water is stirred, to equalize temperature throughout the vessel, prior to measuring the final water temperature.

•Stirring devices and measuring instruments are selected in order to minimize addition or removal of heat.

WATER LOAD

TURNTABLE

DISASSEMBLY AND ADJUSTMENT

A. OUTER CASE REMOVAL

1)Disconnect the power supply cord from the outlet.

2)Remove the screws from the rear of the case.

The outer case must be moved backward to be lifted off.

B. POWER SUPPLY CORD

1)Remove the outer case.

2)Disconnect two terminals and remove one screw of the ground terminal.

C. CONTROL PANEL ASSEMBLY

1)Open the door.

2)Disconnect the lead wire from RELAY (RY2) of the

PCB SUB ASSEMBLY.

3)Disconnect the leadwire from connector (CN1) of the

PCB SUB ASSEMBLY.

4)Remove screw which hold the controller assembly to the cavity.

5)Lift up and pull out control panel assembly carefully from the cavity.

CAUTION: DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE SERVICING (refer to page 2-1)

Remove the screw

securing screw

ground screw

Lift up and pull out control panel

5-3

LMAB1240ST specifications

The GE LMAB1240ST is a remarkable side-by-side refrigerator that embodies modern design and advanced technology, catering to the needs of today's consumers. Offering a perfect blend of style, functionality, and efficiency, this model stands out in the crowded marketplace.

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Additionally, the LMAB1240ST boasts advanced convenience features such as LED lighting, which provides bright and energy-efficient illumination within the refrigerator and freezer compartments. The easy-to-use temperature controls allow users to adjust settings effortlessly, ensuring optimal conditions for food storage.

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