1. Output Wattage Power Test
All you need is a microwave safe bowl of low mass, a thermometer, and knowledge of the microwave oven’s output wattage rating
STEP 1: 1000ml of water approximately 65 F degrees
Stir water for 10 seconds and record temperature
STEP 2: Heat water for 33 seconds
Power Out = Cooking Wattage
Bowl Part #

2. Output Wattage Power Test
STEP 3: Remove water from oven and stir for 10 seconds
STEP 4: Record temperature
STEP 5: Subtract first temperature from second temperature
to determine temperature rise
Example: 77 F – 65 F = 12 F degree rise

3. Output Wattage Power Test
Each degree F of temperature rise = 100 output watts
12 degree F temperature rise = 1200 watts output
6.5 degree C temperature rise = 1200 watts output
NOTE: This is a service test only. This is not an IEC 705 power output test which
requires sophisticated lab equipment and a very controlled environment