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Glass thermometer 212°F or 100°C
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600cc glass beaker
14.2. Procedure for measuring
radiation leakage
Note before measuring
1. Do not exceed meter full scale deflection Leakage monitor
should initially be set to the highest scale.
2. To prevent false readings the test probe should be held by
the grip portion of the handle only and moved along the
shaded area shown in Figure right no faster than 1 inch/sec
(2.5cm/sec)
3. Leakage with the outer panel removed less than
5mw/square centimeter
4. Leakage for a fully assembled oven with door normally
closed less than 2mw/square centimeter
5. Leakage for a fully assembled oven [Before the interlock
switch (primary) is interrupted] while pulling the door less
than 2mw/square centimeter
1. Pour 275±15cc (9ozs ±1/2oz) of 20 ± 5°C (68 ± 9°F) water
in a beaker which is graduated to 600cc, and place the
beaker in the center of the oven.
2. Set the radiation monitor to 2450MHz and use it following
the manufactuer’s recommended test procedure to assure
correct results.
3. When measuring the leakage, always use the 2 inch (5cm)
spacer supplied with the probe.
4. Press the start button and with the magnetron oscillating,
measure the leakage by holding the probe perpendicular to
the surface being measured.
1. Measurement with the outer panel removed.
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.
WARNING
Avoid contacting any high voltage parts.
2. Measurements 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.
14.3. 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.
A copy of this repair ticket and the microwave leakage
reading should be kept by repair facility.
2. Should the radiation leakage be more than 2mw/square
centimeter after determining that all parts are in good
condition, functioning properly, and genuine replacement
parts as listed in this manual have been used, immediately
notify PASC or PSC.
14.4. At least once a year, have the
radiation monitor checked for
calibration by its
manufacturer.
25
NE-3280 / NE-2180 / NE-2180C