Caple CM209WH, Техническая информация, Страница: 11 / 55

Servicing Requirements
1.2
Measurement of energy emission
CAUTION
For microwave energy emission On every service call. A check for microwave energy emission must be made according to the following
manner.
1.2.1 Measurement of energy emission
Measurement must be made with the microwave oven operating at its maximum output and containing a load of 275±15 milliliters of tap water initially at
20°±5° Celsius (68±9°F) placed within the cavity at the center.
NOTE: The water container must be a 600 milliliter beaker and made of an electrically none conductive material such as glass or plastic. The cook tray
must be in place when measuring emission.
A properly operating door and seal assembly will normally register emission no greater than 5 mW/cm2 to allow for measurement uncertainty with the
cooking shelf or tray in place.
1.2.2 All repairs must be performed in such a manner that microwave energy emission is minimal.
Follow the instructions supplied with the detector being used and perform an R.F. emission test around the door front,
and all edges and vent of the outer case. The cabinet (wrapper) must be in place and the oven fully assembled. When
performing an emission survey, with the meter on FAST RESPONSE, the movement of the detector probe shall not
exceed one (1) inch per second.
In the area emitting the highest reading, switch the meter to SLOW RESPONSE and take a reading for minimum of
three (3) seconds. We recommended the pattern outline shown below when the door surface is surveyed.
NOTE: Periodically check to be sure that the probe tip is not worn or dirty.
The following U.S. standard applies to microwave ovens: 21 CFR 1030.10, Performance Standard for Microwave
Ovens.
It requires that the power density of the microwave radiation emitted by a microwave oven shall not exceed five (5)
milliwatts per square centimeter at any point 5 centimeters (about 2 inches) or more from the external surface of the
oven.
All microwave ovens exceeding the emission level of 4 mW/cm2 must be reported to Dept. of Service for microwave
ovens and the manufacturer immediately. The owner should be told not to use the microwave oven until it has been
repaired completely. If a microwave oven is found to operate with the door open, report to Dept. of Service, the
manufacturer and CDRH* immediately. Also tell the owner not to use the oven.
*CDRH: Center for Device and Radiological Health. The interlock monitor switch acts as the final safety switch
protecting the customer from microwave radiation. If the interlock monitor switch operates properly and the door
interlock switch fails, the fuse will blow. If this happens, all interlock switches must be replaced. The contacts of the
interlock switches may be welded together.