Daewoo KOG-391H0S, KOG-371H0S Measurement and Test, Procedure, Heating time for power output

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MEASUREMENT AND TEST

1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT

Microwave output power can be checked by indirectly mmeasuring the temperature rise of a certain amount of water exposed to the microwave as directed below.

PROCEDURE

1.Microwave power output measurement is made with the microwave oven supplied at rated voltage and operated at its maximum microwave power setting with a load of 100 ± 5cc of potable water.

2.The water is contained in a cylindrical borosilicate glass vessel having a maximum material thickness of 3 mm and an outside diameter of approximately 190 mm.

3.The oven and the empty vessel are at ambient temperature prior to the start of the test. The initial temperature of the water is 10 ± 2°C (50 ± 3.6°F). If is measured immediately before the water is added to the vessel. After addition of the water to the vessel, the load is immediately placed on the center of the shelf, which is in the lowest normal position.

4.Microwave power is switched on.

5.Heating time should be exactly A seconds. (Refer to table as following)

Heating time is measured while the microwave generator is operating at full power. The filament heat- up time for magnetron is not included.

6. The initial and final temperature of water is selected so that the maximum difference between the ambient and final water temperature is 5K.

7.The microwave power output P in watts is calculated from the following formula:

P = 4187 X ΔT/t

ΔT is difference between initial and ending temperature.

t is the heating time.

The power measured be B (Refer to SPECIFICATIONS) W ± 10.0 %.

CAUTION

1.Water load should be measured exactly to 1 liters.

2.Input power voltage should be exactly specified voltage (Refer to SPECIFICATIONS).

3.Ambient temperature should be 20 ± 2°C (68 ± 3.6°F)

Heating time for power output:

A (second)

70

64

60

56

52

49

47

44

42

40

38

 

 

 

 

 

 

 

 

 

 

 

 

B (W)

600

650

700

750

800

850

900

950

1000

1050

1100

 

 

 

 

 

 

 

 

 

 

 

 

49

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Contents Microwave Oven Table of Contents For Safe Operation Safety and PrecautionsFor Safe Service Procedures KOG-391G/H/R0S SpecificationsModel KOG-376T1S KOG-396T1SOuter Dimension External View465 360 Feature Diagram Heating Element Oven Cavity Sefety Interlock SystemKOG-376T1S, KOG-396T1S KOG-371R0S, KOG-391R0S KOG-374R0S KOG-375R0S KOG-373R0S, KOG-393R0S Control Panel KOG-371G0S, KOG-391G0SKOG-371H0S, KOG-391H0S KOG-376T1S, KOG-396T1S Grill/Combi Stop/Clear Stop/Clear Start/Easy Cook Auto cook Installation Earthing InstructionsWattage output chart Operation and FunctionsDisassembly and Assembly To remove door assembly To remove cabinetTo remove door parts REF. no Part Code Part Name Description QTY RemarkPage Frame Door ABS Page REF no Part Code Part Name Description ’TY Remark Decorator DOOR*TPage Screw Tapping T2SN TRS 4X16 Mfzn Page BARRIER-SCREEN*0 SAN Page To remove control panel parts CONTROL-PANEL ABS Control Panel Knob Volume Button Function Button Fuction *A High voltage circuit wiring To remove magnetron To remove high voltage capacitorTo remove wind guide assembly To remove H.V.transformerTo remove tray motor To remove heater assmblyTo remove heater parts Interlock Mechanism and Adjustment AdjustmentInterlock Mechanism and Adjustment Trouble Shooting Guide Check ResultCheck Check Result Cause Cause Remedy Measurement and Test ProcedureHeating time for power output Microwave Radiation Test High voltage diode High voltage transformerHigh voltage capacitor MagnetronWiring Diagram KOG-396T1S Voltage Check Key check point Printed Circuit Board KOG-371G/H0S, KOG-391G/H0SLow voltage transformer check Check Point RemarkMesurement point Point State Point State Relay 2 on 5VDC GND Relay 2 OFFPoint State Relay 1 on 5VDC GND Close GND Check no Hethod RemedyC.B. Circuit Diagram Name Symbol Specification Part Code ’TY C.B. Location noR15 6W 10K 5% Printed Circuit Board KOG-376T1S, KOG-396T1S Wave Form Remedy RemarkMesurement point 24VDC Point State Relay 3 on 5VDC GNDC.B. Circuit Diagram C.B. Location no KOG-396T1S Printed Circuit Board KOG-371R0S, KOG-391R0S Mesurement point Point State Relay 2 on 5VDC GND Relay 2 OFF C.B. Circuit Diagram Name Symbol Specification Part Code ’TY Remark J1~J17, SJ1 Circuit Check Procedure Printed Circuit Board KOG-374R0S, KOG-375R0SMesurement point Point State Relay 2 on 5VDC GND Relay 2 OFF C.B. Circuit Diagram Name Symbol Specification Part Code QTY Remark Printed Circuit Board KOG-373R0S, KOG-393R0S Mesurement point Point State Relay 2 on 5VDC GND Relay 2 OFF C.B. Circuit Diagram Wire Copper TIN Coating J3, J5~J10, SJ1 Exploded View and Parts List KOG-371G/H/R0S, KOG-391G/H/R0S Total AssemblyREF no Part Code Part Name Description QTY Foot KOR-86150S KOR-61150S Exploded View and Parts List KOG-376T1S, KOG-396T1S CONTROL-PANEL AS Special Screw TT3 TRS 4X8 FLG Mfzn KOG-396T1S Part Code Part Name Description Supply Remark Exploded View and Parts List KOG-374R0S Special Screw TT3 HEX 4X8 Mfzn Exploded View and Parts List KOG-375R0S KOG-375R0S Exploded View and Parts List KOG-373R0S, KOG-393R0S Heater AS Foot 100 101 Printed Date Dec