How do I check if the mixer motor is in good condition using a wattmeter?

Set the wattmeter to the proper voltage, plug the mixer cord into the wattmeter, turn on the current, and run the mixer. If the wattmeter shows up to 135 watts going from Stir to #10 speed, the mixer is in good condition; if the reading is 175 to 400 watts, there is a problem indicating either electrical or mechanical issues. (Page 5)