ACP ARX51 Series, Service Manual

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MICROWAVE POWER TEST
Power Test
All ACP microwave oven power outputs are rated using the IEC705 standards. Using the IEC705 test
method requires precision measurements and equipment that is not practical to be performed in the field.
Using the test shown below will indicate if the oven performance is satisfactory.
Test equipment required:
1000 ml test container and thermometer.
Procedure
Fill the test container to the 1000 ml line with cool tap water as close to 60° F / 16° C as possible.
Using the thermometer, stir water for ten seconds; measure, and record the temperature.
Place test container of water in the center of oven cavity and close door.
Heat the water for a 33-second full power cycle.
At end of the cycle, remove test container. Using the thermometer, stir water for ten seconds and record
temperature.
Subtract the starting water temperature from the ending water temperature to obtain the temperature rise.
If the temperature rise meets or exceeds the nominal microwave energy rating found on the model/serial
tag, the test is complete. If the temperature rise fails to meet the minimum temperature rise, test the line
voltage to verify it is correct. Then repeat steps 1-6 making sure to change the water. If the temperature
rise fails to meet the minimum temperature rise again the oven will require service.
Set Up for Power Test
1.
The oven MUST BE at room temperature for best results
2.
Service Test Mode “Both Magnetrons”
Important Notes:
Low line voltage will cause low temperature rise / power output. Ovens must be on a dedicated circuit,
properly grounded, and polarized. Other equipment on the same circuit may cause a low temperature
rise / power output. This test and results are not a true IEC705 test procedure and are only intended to
provide servicers with an easy means of determining if the microwave oven cooking output is correct.
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