First, the choice of electric oven
(1) Choice of power
The electric oven power common in the domestic market is generally between 500-3500 watts. When purchasing, you should first consider the amperage of the household meter. The larger the ampere value, the greater the optional power. Within the scope allowed by the meter, consider the situation of the family population. If the population is small, it is better to use an electric oven of less than 1500 watts; if the population is large, choose a more powerful oven.
(2) Choice of type
1 Simple electric oven: For the average family, the biggest advantage of the simple type is that the price is relatively cheap, but this type does not have a timing device, which is troublesome to operate. It is necessary to take time to observe the food baking situation and control the baking time. . In addition, the electric heating element of the simple electric oven is a metal electric heating tube. Such an electric heating tube has good mechanical strength and oxidation resistance, but has a relatively high temperature rise and poor penetration.
2 full-featured electric oven: Full-featured electric oven generally refers to the ordinary or advanced electric oven. This type of electric oven is equipped with a timing device and a power shifting device for ease of use. In addition, the electric heating elements of this type of electric oven are two kinds of metal electric heating tubes and quartz electric heating tubes. The quartz electric heating tube heats up quickly, has strong penetrating power and saves electricity; but the mechanical strength is poor, the body is brittle, and it is easy to crack when colliding. Full-featured electric ovens are more expensive than simple electric ovens.
3 electronic oven: Electronic oven is a relatively high-end product on the market, mainly based on embedded. It can change the heating method, heating time, and food rotation according to pre-programmed procedures. The baking range is wider and the baking effect is better, which is suitable for families with higher consumption levels.
(3) The choice of function.
1. Fire and under fire can be opened separately or simultaneously.
2. Timing settings are usually adjustable from 0 to 60 minutes, and some are always heated.
3. Temperature control is adjustable from 100 to 250 degrees Celsius, and some have low temperature file thawing function.
4. The oven should be well sealed to reduce heat loss. Most of the doors are opened from the top to the bottom. They should not be too tight to prevent them from being burnt when they are too hot. They should not be too loose, so as not to fall off the glass door. There should be at least three pan positions inside the oven, which can be close to the fire, close to the fire and in the middle.
Second, the selection method of the oven
(1) Visual inspection
The paint on the outer surface should be uniform, bright, no detachment, no dents or severe scratches. The door switch is flexible, tight and seamless, and the window glass has good transparency. All kinds of switches and knobs are beautiful in appearance and fine in processing. The dial is clear and easy to operate. Counterfeit and shoddy products often use counterfeit trademarks and packaging, or impersonate the assembled products as original imported products. The box is uneven, rust spots, rough appearance, various switches are not flexible, and the functional effects are not obvious. After the power is turned on, the temperature rises slowly and does not meet the standard requirements.
(2) Power-on test
First check if the indicator light is on. Change the power selection switch position and observe whether the upper and lower heating elements are working properly.
Constant temperature performance check: The temperature adjustment knob can be adjusted to 200 degrees, the double tube can work for about 20 minutes at the same time, and the internal temperature of the oven should reach 200 degrees. Then the oven can be automatically powered off and the indicator light goes out. If the above requirements are met, the thermostatic performance is good, otherwise it is not normal.
Finally check the timer travel time, although the timer is not required to be as accurate as the watch, but the error should not be greater than 10% of the soil. And there can be no "stolen stop" phenomenon.
Shenzhen Pvison Technology Co., Ltd. , https://www.pvisunggrowlight.com