Panasonic NN-GD566M, Service Manual

Page: 60 / 82

8. PROCEDURE FOR MEASURING MICROWAVE
ENERGY LEAKAGE
8.1. Equipment
- Electromagnatic radiation monitor
- Glass thermometer 212 °F or 100 °C
- 600cc glass beaker
8.2. Procedure for measuring radiation leakage
Note before measuring.
- Do not exceed meter full scale deflection. Leakage 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 and moved along the shaded area in
Figure no faster than 1 inch/sec (2.5cm/sec).
- Leakage with the outer panel removed ...... less than 5mW/cm
2
.
- Leakage for a fully assembled oven with door normally closed ......
less than 2mW/cm
2
.
- Leakage for a fully assembled oven [Before the latch switch
(primary) is interrupted] while pulling the door ...... less than 2mW/
cm
2
.
1. Pour 275 ± 15cc (9ozs ± 1/2oz) of 20°C ± 5°C (68 ± 9°F) water in a
beaker which is graduated to 600cc, and place in the center of the
oven.
2. Set the radiation monitor to 2450MHz and use it following the
manufacturer'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. Tap the start pad or set the timer and with the magnetron
oscillating, measure the leakage by holding the probe
perpendicular to the surface being measured.
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