Daewoo KOR-1A1G0A Service Manual

Also see for KOR-1A0A0A: Service manual

Daewoo KOR-1A1G0A Service Manual Manual pdf 24 page image

23MEASUREMENT AND TEST1. MEASUREMENT OF THE MICROWAVE POWER OUTPUTMicrowave output power can be checked by indirectly mmeasuring the temperature rise of a certain amount of waterexposed to the microwave as directed below.PROCEDURE1. Microwave power output measurement is made with the microwave oven supplied at rated voltage and operated atits maximum microwave power setting with a load of 100 ± 5cc of potable water.2. The water is contained in a cylindrical borosilicate glass vessel having a maximum material thickness of 3 mm andan outside diameter of approximately 190 mm.3. The oven and the empty vessel are at ambient temperature prior to the start of the test. The initial temperature ofthe water is 10 ± 2°C (50 ± 3.6°F). If is measured immediately before the water is added to the vessel. Afteraddition of the water to the vessel, the load is immediately placed on the center of the shelf, which is in the lowestnormal 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 microwavegenerator 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 sothat the maximum difference between the ambient andfinal water temperature is 5K.7. The microwave power output P in watts is calculatedfrom the following formula:• ∆ T is difference between initial and ending temperature.• t is the heating time.The power measured be B (Refer to SPECIFICATIONS) W ± 10.0 %.✻ Heating time for power output:CAUTION1. 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)P = 4187 X ∆ T/t7060064650607005675052800498504790044950421000401050381100A (second)B (W)