What This IsPanasonic has a number of different sensor settings, identified by particular food items (listed in the table below), but does not list the times or power levels for these settings. The table is a compilation of these levels.
The data was taken from a 2004 Panasonic NN-TK964 1250 watt 1.6 cu ft. (0.045 M³). This is a keypad model, with "breakfast", "lunch/snack", etc. on the right and a "function" button beneathe the "0".
Panasonic Sensor SettingsSo here's the list:
Printer-Friendly Versions:http://skoozeme.com/techramblings/panasonicsettingschart.html (.pdf version)
Categories are for the above "keypad" microwave. Panasonic "Luxury" Dial Wheel Microwaves typically have 18 "sensor" settings, which can be matched to this list according to their descriptions in the owner's manual. Keypad models typically have 9 or 18 "sensor" settings.
|category||18-setting no.||9-setting no.||item||power||sensor time||run-down time||power||comment|
|1||1||oatmeal||70%||to boil||0 sec.||--|
|2||2||breakfast sausage||50%||to boil||0 sec.||--|
|3||3||omelet||50%||to boil||50 sec.||@ 50%|
|4||--||soup||70%||to boil||21 sec.||@ 70%|
|5||4||frozen entrée||50%||to boil||21 sec.||@ 60%||"stir display"|
|6||5||frozen pizza||50%||to boil||85 sec.||@ 60%||(high defrost; then heat)|
|7||--||frozen pocket||50%||to boil||50 sec.||@ 50%|
|8||6||Potato||70%||to boil||81 sec.||@ 50%|
|9||7||Fresh Vegetable||70%||to boil||30 sec.||@ 70%|
|10||8||Frozen Vegetable||70%||to boil||~6 sec.||@ 50%||"stir display"|
|11||--||Canned Vegetable||50%||to boil||55 sec.||@ %|
|12||--||White Rice||70%||to boil||270 sec.||@ 20%|
|13||--||Brown Rice||70%||to boil||510 sec.||@ 20%|
|14||Frozen Dinner||50%||to boil||42 sec.||@ 50%|
|15||9||Pasta||70%||to boil||52 sec.||@ 50%||rolling boil|
|16||Stew||70%||to boil||37 sec.||@ 70%|
|17||Ground Meat||50%||to boil||sec.||@ %||"stir display"|
|18||Fish Fillets||50%||to boil||0 sec.||--||(best guess is steamed fresh fish)|
Limitations and MethodologyThe sensor function operates in two stages:
In the "Sensor" mode, the sensor function is believed to set a cooking power, typically 70% or 50%, and continue until a particular moisture level is sensed. The sensor then goes to a "Run Down" mode, in which a partial power level, between 20% and 70%, is applied for a specific time period.
- "Sensor heat" mode - food is heated to sensed moisture level (moisture in the oven cavity)
- Timed heat in "Run Down" mode.
The test was initially tried with a cup partially filled with water. Initially, I measured the temperature of the cold water, with the intent of measuring the end temperature. When it became apparent that the sensor sets the oven to boil water before going to a timed mode, I switched to a smaller quantity of water in a small Japanese dipping sauce bowl (After all, it's a Panasonic microwave). The bowl was partly filled with tap water but I did not continue to measure the initial temperature.
The test limitatations include:
- No attempt was made to determine if the microwave selects a different moisture level for different sensor selections.
- The microwave sensor does not appear to compensate for heat. That means that, as the oven gets warmer, more moisture is required for sensing boiling temperature.
- It is possible that the time to boil the water in the "Sensor" mode affects the "Run Down" mode. This would affect the results, which used the small dipping bowl of water.
- The oven cavity temperature affects the sensor programs. The cavity temperature varied significantly with sequential test runs using the small dish of water. One effect was that more moisture was required for sensing after the oven became very warm.
Heating in Plastic ContainersWhile the names given by Panasonic are suggestive of some pre-packaged entrees, it is important to avoid heating foods in most plastic containers. There are some plastic containers which are considered "microwave safe plastics", the safety of such materials is not assured. Some materials, such as plastic wrap are only safe if kept separate from the foodstuff and not allowed to touch the food.
Unless the material is indicated as "microwave safe", a ceramic or glass dish should be used. Uncoated paper is also generally considered safe; however, many paper products are coated with plastic.
More information is found at http://www.skoozeme.com/techramblings/plastics.html.
first posted 26-Dec-11; rev 29-Dec-11 This page copyright 2006, Stan Protigal