Microwave Leakage Test |
| Performance Test |
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1.Place 275 ml. of water in a 600 ml beaker (WB64X5010).
2.Place the beaker in the center of the oven shelf.
3.Set the meter to the 2450 MHz scale.
4.Turn the oven on for 5 minutes.
5.Hold the probe perpendicular to the surface being tested and scan the surfaces at a rate of 1 inch/sec.
Test the following areas:
•The entire perimeter of the door and control panel.
•The viewing surface of the door window.
•The exhaust vents.
6.The maximum leakage is 4 MW/CM2.
7.Record data on the service invoice and microwave leakage report.
Note: The maximum allowable leakage is 5 MW/ CM2. 4 MW/CM2 is used to allow for measurement and meter accuracy.
Inform the manufacturer of any oven found to have emission in excess of 5 MW/CM2. Make repairs to bring the unit into compliance at no cost to the owner and try to determine the cause. Instruct the owner not to use the oven if it has not been brought into compliance.
High Voltage Capacitor
The high voltage capacitor has an internal shunt resistor to automatically discharge the capacitor when the oven turns off. Under normal operation, the capacitor should fully discharge within 30 seconds.
1.Measure the line voltage (loaded). This test is based on normal voltage variations of 108V to 132V. Low voltage will lower output power and temperature rise.
2.Place a beaker (WB64X0073) containing
1 liter of water (1000ml, 59°F - 75°F) on the turntable and record the starting water temperature with a thermometer. (Do not use any other load or dish as results will very from standard).
3.Set the microwave oven at HIGH power for 2 minutes and 3 seconds.
4.Turn on the oven.
5.Record the water temperature.
The minimum difference between the initial and ending temperature should be 40°F at 120V.
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