Dacor PMOR3021B Service Manual

Also see for PMOR3021B: Use & care instructions Use & care installation instructions

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Dacor PMOR3021B Service Manual Manual pdf 4 page image

2PMOR3021SPMOR3021BPMOR3021RMICROWAVE MEASUREMENT PROCEDUREA. Requirements:1) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave ovenshould not exceed 1mW/cm2 at any point 5cm or more from the external surface of the oven, measured prior to acquisitionby a purchaser, and thereafter (through the useful life of the oven), 5 mW/cm 2 at any point 5cm or more from the externalsurface of the oven.2) Safety interlock switches: Primary interlock switch shall prevent microwave radiation emission in excess of therequirement as above mentioned, secondary interlock switch shall prevent microwave radiation emission in excess of5 mW/cm2 at any point 5cm or more from the external surface of the oven.B. Preparation for testing:Before beginning the actual measurement of leakage, proceed as follows:1) Make sure that the actual instrument is operating normally as specified in its instruction booklet.Important:Survey instruments that comply with the requirement for instrumentation as prescribed by the performance standardfor microwave ovens, 21 CFR 1030.10(c)(3)(i), must be used for testing.2) Place the oven tray in the oven cavity.3) Place the load of 275±15 ml (9.8 oz) of tap water initially at 20o ±5C (68 o F) in the center of the oven cavity.The water container shall be a low form of 600 ml (20 oz) beaker with an inside diameter of approx. 8.5 cm (3-1/2 in.)and made of an electrically nonconductive material such as glass or plastic.The placing of this standard load in the oven is important not only to protect the oven, but also to insure that any leakageis measured accurately.4) Set the cooking control on Full Power Cooking Mode5) Close the door and select a cook cycle of several minutes. If the water begins to boil before the survey is completed,replace it with 275 ml of cool water.C. Leakage test:Closed-door leakage test (microwave measurement)1) Grasp the probe of the survey instrument and hold it perpendicular to the gap between the door and the body of the oven.2) Move the probe slowly, not faster than 1 in./sec. (2.5 cm/sec.) along the gap, watching for the maximum indication onthe meter.3) Check for leakage at the door screen, sheet metal seams and other accessible positions where the continuity of the metalhas been breached (eg., around the switches, indicator, and vents).While testing for leakage around the door pull the door away from the front of the oven as far as is permitted by the closedlatch assembly.4) Measure carefully at the point of highest leakage and make sure that the highest leakage is no greater than 4mW/cm2,and that the primary interlock switch and secondary interlock switch do turn the oven OFF before any door movement.NOTE: After servicing, record data on service invoice and microwave leakage report.SERVICING FOR INVERTER UNITWARNINGThis inverter unit contains circuitry capable of producing high voltage and high current. Contact with any partof the high voltage will result in electrocution.DO NOT ACCESS ANY PARTS OF INVERTER UNIT WITH POWER SUPPLY CONNECTED.DO NOT OPERATE INVERTER UNIT ITSELF.It is dangerous because this unit contains high voltage components.