Test Method; Bubble Test; Steaming Test; Keep Warm Test - Panasonic SR-DE183 Service Manual

SR-DE103, 183 / SR-MS103, 183

8. TEST METHOD

8.1 Bubble test

1. Insert the pan into the cooker main body and turn it slightly clockwise and anti-clockwise to place the pan
properly on top of the cast heater.
2. Pour small quantity of water into the pan so that the bottom of the pan is immersed with water.
Close the lid completely.
3. After connecting to power, select [Quick] from [Menu Select] and then press [Start] button.
4. When the water boils, the cooker will blow off steam. When you see the steam, open the lid, and then
press the brim of the pan to completely touch it to the cast heater. Then check the water bubbling condition.
See the right figures :
• Water bubbles appear at three areas and are distributed
evenly around the circle..............Acceptable
• Water bubbles are distributed unevenly and not around
the circle......................................Unacceptable
• The unacceptable result is possibly due to incomplete
contact of bottom of pan and the cast heater. So please
check the heater surface for foreign material and remove
them or replace the defective part (pan or cast heater).

8.2 Steaming test

After confirming the bubble test is acceptable, spread two
or three sheets of tissue paper (or gauze) over bottom of
the pan to leave the cooker on without closing the lid.
Note :
• Be sure to fully open the lid to protect the plastic parts
from thermal distortion caused by steam.
• Make holes in the tissue paper (or gauze), as shown,
so that it will not float up during steaming.

8.3 Keep Warm test

1. Place a mercury thermometer between urethane foam blocks as shown below. Urethane foam blocks
(ASN-300) and the thermometer (ASN-150H) are supplied as spare parts.
2. Place the urethane foam blocks holding the thermometer into central bottom of the pan and allow the
cooker to run in the "Keep Warm" condition for more than 1 hour.
3. More than 1 hour later, open the lid and read the temperature within 10 seconds.
- If it is within 69˚C - 77˚C, then considered as normal.
- If the warming temperature is out of this range, check whether there is any dirt of foreign material stuck
on the pan sensor or bottom of the pan, if so, please remove them.
- If nothing is found, adjust the warming temperature and replace the control circuit board (comp.)
Urethane foam blocks
Mercury thermometer
Inner pan (top view)
Holes of
tissue paper
Pan
- 13 -
Bubble
Brim of pan
Tissue paper
Mercury thermometer