You can do an exact power measurement by putting exactly 500 ml of water in a glass (Pyrex) or plastic measuring cup in the microwave. Measure the beginning temperature and record it, preferably with a digital thermometer. Run the unit on high for exactly 18 seconds. Use a digital watch or a stop watch, not the timer on the unit. Remove the measuring cup and stir the water to make sure that all the water is a uniform temperature. Record the temperature rise. Say the temp rise is 20 degrees Fahrenheit Multiply that figure by 38.75, this would indicate that the power delivered into the cavity is 775 watts. This is the old standard of measuring the power. The new standard called the IEC 705 would add 10% to that for a total of 852.5 watts. This matters more than the rating of the unit because if the power output is more than 15% below the units rated power, the magnetron is probably getting weak and needs to be replaced. Probably not worth the cost to repair. The voltage at the wall could also cause a low power output output. 'Google' the model # to see if you can find any info on this model #......
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You can do an exact power measurement by putting exactly
500 ml of water in a glass (Pyrex) or plastic measuring cup in the microwave. Measure the beginning temperature and record it, preferably with a digital thermometer. Run the unit on high for exactly 18 seconds. Use a digital watch or a stop watch, not the timer on the unit. Remove the measuring cup and stir the water to make sure that all the water is a uniform temperature. Record the temperature rise. Say the temp rise is 20 degrees Fahrenheit Multiply that figure by 38.75, this would indicate that the power delivered into the cavity is 775 watts. This is the old standard of measuring the power. The new standard called the IEC 705 would add 10% to that for a total of 852.5 watts. This matters more than the rating of the unit because if the power output is more than 15% below the units rated power, the magnetron is probably getting weak and needs to be replaced. Probably not worth the cost to repair. The voltage at the wall could also cause a low power output output. 'Google' the model # to see if you can find any info on this model #......