Load Test: This is not a required measurement although it can be useful to prove that an appliance actually works. Also if the run load current is recorded that record can be used to spot early signs of impending failure. ( eg: A motor with bearings starting to seize will result in higher load current as the defect worsens)

Remember that when this test is applied the appliance will start up. So in the case of power tools or anything with moving parts make sure that no damage or harm will be caused.

Some test sets will first check that the amount of current drawn will not be excessive before the test proper.

Some will measure the current drawn and display or print the information. However your test set handles it the test can save embarrassment being caused by passing an appliance which does not actually work.