Explain the difference between the high temperature thermostatic test chamber and the electric thermostatic blast drying oven
Explain the difference between the high temperature constant temperature test box and the electric heating constant temperature blast drying box. When the products are purchased, customers often can not distinguish the difference between the high temperature constant temperature test box and the electric heating constant temperature blast drying box. As a result, the bought back equipment cannot satisfy the use. The demand has made both supply and demand extremely embarrassing. The author worked for many years in the technical department of Beijing Hengtai Fengke Test Equipment Co., Ltd. He believed that the high-temperature constant-temperature test box and the electric-heated constant-temperature blast drying box had both the same features and obvious differences. Specially written this article for the majority of users.
1. The use of high temperature constant temperature test chamber and electric heat constant temperature blast drying box is different:
Both are test cases where the working space temperature is above room temperature to a certain temperature. However, high-temperature test chambers are generally used for high-temperature aging or drying of precision samples. The impregnation of the samples cannot be too large, and the accuracy of temperature control is relatively high. The electric heat blast oven is used for the drying of samples with a relatively high moisture content. There are size-adjustable dehumidification pipes, which generally do not require strict temperature control accuracy.
2. The structural characteristics of the high temperature test box and the electric blast drying box are different:
The high-temperature test chamber has an independent design of the circulating air duct. The heated hot air circulates in a specific air duct. There are air outlets and return air outlets, which can ensure the temperature uniformity in the box; the circulation of the electric heat blast drying box is only through the fan. The hot air is directly blown into the box and the temperature uniformity inside the box is not high. High-temperature test chambers are equipped with lead holes for testing, which can be an external power supply or instrument.
3, the controller of high temperature test box and electric blast drying box is different;
The high temperature test chamber adopts the imported temperature controller and has a wide range of temperature test. The Pt100 platinum resistance is used as the sensor. The temperature control has high sensitivity and good temperature uniformity. It has leakage protection, over-temperature alarm and over-temperature protection function. The electric blast drying box generally cannot have these characteristics.
4. The main technical indicators of the high temperature test box and the electric blast drying box are different:
High temperature test box technical parameters:
Temperature range: Room temperature +10°C～450°C
Temperature uniformity: ±2°C
Temperature fluctuation: ±0.5°C
Temperature control accuracy: 0.1°C
Heating rate: 1～3°C/min
Electric blast drying oven technical parameters:
Temperature range: RT+10°C～200°C(250°C)
Control accuracy: ±1% (full scale)
Constant temperature fluctuation: ±1°C
Temperature Resolution: 0.1°C
The above is the main difference between the high-temperature test box and the electric blast drying box. I hope to help everyone.
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