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Due to the different temperatures of different objects to be baked for different users, as a manufacturer trying to cover the radiant heat measurement method with a unified mode, it is not only technically difficult, but also the representative of the actual temperature of other objects to be baked Sex is too bad
.
Therefore, the instrument reading of the electric vacuum drying box is very different from the reading of the glass rod thermometer in the vacuum chamber.
Taking the user's acceptable as the starting point, the general electric vacuum drying box adopts the method of first heating the wall of the vacuum chamber, and then facing the workpiece from the wall.
The way of radiant heating
.
In this way, the temperature sensor of the temperature control instrument can be arranged on the wall of the vacuum chamber
.
The sensor can accept convection, conduction, and radiation heat simultaneously
.
The glass rod thermometer in the vacuum chamber can only receive radiant heat, and because the glass rod thermometer cannot reach it, a considerable part of the radiant heat is refracted, so the temperature value reflected by the glass rod thermometer must be lower than the temperature reading of the instrument
.
Generally speaking, it is normal that the difference between the temperature reading of the instrument and the reading of the glass rod thermometer at 200 °C is within 30 °C
.
If the temperature sensor of the temperature control instrument is arranged in the vacuum chamber, the difference between the temperature value of the glass rod thermometer and the temperature reading of the instrument can be reduced appropriately, but cannot be eliminated, and the sealing reliability of the vacuum chamber increases by a possible unreliable link
.
If you don't want to see this difference from the perspective of operation and practicality, you can use the unique display correction function of the temperature control instrument to solve it
.
.
Therefore, the instrument reading of the electric vacuum drying box is very different from the reading of the glass rod thermometer in the vacuum chamber.
Taking the user's acceptable as the starting point, the general electric vacuum drying box adopts the method of first heating the wall of the vacuum chamber, and then facing the workpiece from the wall.
The way of radiant heating
.
In this way, the temperature sensor of the temperature control instrument can be arranged on the wall of the vacuum chamber
.
The sensor can accept convection, conduction, and radiation heat simultaneously
.
The glass rod thermometer in the vacuum chamber can only receive radiant heat, and because the glass rod thermometer cannot reach it, a considerable part of the radiant heat is refracted, so the temperature value reflected by the glass rod thermometer must be lower than the temperature reading of the instrument
.
Generally speaking, it is normal that the difference between the temperature reading of the instrument and the reading of the glass rod thermometer at 200 °C is within 30 °C
.
If the temperature sensor of the temperature control instrument is arranged in the vacuum chamber, the difference between the temperature value of the glass rod thermometer and the temperature reading of the instrument can be reduced appropriately, but cannot be eliminated, and the sealing reliability of the vacuum chamber increases by a possible unreliable link
.
If you don't want to see this difference from the perspective of operation and practicality, you can use the unique display correction function of the temperature control instrument to solve it
.
