Amana LD510D Service Manual download pdf (Page 20)

Microwave Leakage Testing

WARNING

To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor

before servicing, unless testing requires it.

16022150 Rev. 0

WARNING

Check for radiation leakage after servicing. Should

the leakage be more than 4mW/cm

inform Maytag

immediately. After repairing or replacing any

radiation safety device, keep a written record for

future reference, as required by D.H.H.S. and

HEW regulations. This requirement must be strictly

observed. In addition, the leakage reading must be

recorded on the service repair ticket while in the

customer’s home.

Equipment

• Electromagnetic radiation monitor

• 600 cc glass beaker

Procedure For Measuring Radiation

Leakage

Note before measuring -

• Do not exceed meter full scale deflection. Leak

monitor should initially be set to the highest scale.

• To prevent false readings the test probe should

be held by the grip portion of the handle only.

• The scan speed is equal to one inch per antenna

revolution or one inch per second if antenna speed

is unknown.

• Areas to be checked are all door seal areas and

any venting parts.

• Leakage with the outer panel removed

...4mW/cm

or less.

• Leakage for fully assembled oven with door

normally closed ...4mW/cm

or less.

• Leakage for a fully assembly oven (before the

latch switch (primary) is interrupted) while pulling

the door ... 4mW/cm

or less.

1. Pour 275 cc ±15 cc (9 oz ±1/2 oz) of 20°C ± 5°C

(68°F ± 9°F) water in a beaker which is graduated

to 600 cc and place the beaker in the center of

oven.

2. Set the radiation monitor to 2450 MHz and use it

following the manufacturer’s recommended test

procedure to assure correct results.

3. While measuring the leakage, always use the two

inch (5 cm) spacer supplied with the probe.

4. Press the start pad or turn on the timer and with

the magnetron oscillating, measure the leakage

by holding the probe perpendicular to the surface

being measured.

Measurement With the Outer Panel

Removed

DANGER!

Avoid contacting any high voltage components.

Whenever you replace the magnetron, measure for

radiation leakage before the outer panel is installed

and after all necessary components are replaced or

adjusted. Special care should be taken in measuring

around the magnetron.

Measurement With a Fully Assembled

Oven

After all components including the outer panel are fully

assembled, measure for radiation leakage around the

door periphery, the door viewing window, the exhaust

opening, and air inlet openings.

Record Keeping and Notification After

Measurement

1. After any adjustment or repair to a microwave

oven, a leakage reading must be taken. Record

this leakage reading on the repair ticket even if it

is zero.

2. A copy of the repair ticket and the microwave

leakage reading should be kept by the repair

facility.

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Amana LD510D Service Manual Page 20

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