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Microwave Leakage Test
1. Place 275 mL of water in a 600-mL beaker.
2. Place beaker in center of oven shelf.
3. Set meter to 2450-Hz scale.
4. Enter the service mode (see
Service Mode),
press the keypad next to COOKING LOADS,
then press the keypad next to MW
(microwave).
5. Time for 5 minute test.
6. Hold probe perpendicular to surface being
tested and scan surface at rate of one
inch/sec.
7. Test the following areas:
• Entire perimeter of door and control panel.
• Viewing surface of door window.
• Exhaust vents.
Note: Maximum leakage is not to exceed
4 mW/cm
2
.
8. Record data on service invoice and
microwave leakage report.
Note: Maximum allowable leakage is 5 mW/cm2
(4 mW/cm2 is used to allow for measurement
and meter accuracy). Inform manufacturer of any
oven found to have emissions in excess of
5 mW/cm2. Make repairs to bring the unit into
compliance at no cost to the owner and try to
determine cause. Instruct owner not to use oven
until it has been brought into compliance.
Performance Testing
Standard test load will be 1 liter (1000-mL) of
water with an initial temperature 59° ~ 75°F in a
1000-mL beaker (PN WB64X73).
1. Record initial water temperature.
2. Place beaker in center of middle oven shelf.
3. Enter the service mode (see
Service Mode),
press COOKING LOADS, then press the
keypad next to MW.
4. Time for 2 minutes, then open door.
5. Record end water temperature.
6. The minimum difference between the initial
and ending temperatures should be 12°F at
240 VAC.
Note: Standard Microlite
TM
test blocks
(sometimes called sparkle blocks) are not
applicable.
Interlock cover
Sides
Front
Microwave Scan Pattern (Scan Highlighted
Areas)
Back (Slide-In)
Terminal
Connection
Back (Wall Ovens)
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