The performance confirmation of the high and low temperature test chamber refers to an interpretation of each performance index of the test chamber. The performance of the high and low temperature test chamber can be understood from ten points: temperature test chamber, temperature setting value, actual temperature, temperature stability, temperature Fluctuation, working space, temperature gradient, temperature change rate, space temperature difference, temperature extreme value, the following is the corresponding interpretation of each term noun: 1. Temperature test chamber: refers to the temperature conditions required by the standard within a closed space; 2. Temperature setting value: Through the setting of the test box control system, the temperature in the box can reach the desired temperature; 3. Actual temperature: After the temperature of the cabinet is stable, the temperature at any point in the working space of the test chamber is derived from the reading displayed on the controller through the sensor; 4. Stable temperature: the temperature of all points in the working space reaches and maintains within the given tolerance of the temperature setting value, which we often call temperature uniformity; 5. Temperature fluctuation: After the temperature of the test chamber is stable, the difference between the highest and lowest temperature of any point in the working space within the specified time interval; 6. Work space: In conventional terms, it refers to the volume of the high and low temperature test chamber; 7. Temperature gradient: after stabilization, within any time interval, the maximum difference in average temperature between two points in the working space; 8. Temperature change rate: the transition rate between the two specified temperatures measured in the center of the work space, in Kelvin per minute K / min, the current standard temperature rise and fall rate of Shanghai Linpin Instrument Co., Ltd. is: heating rate 1.0 ～ 3.0 ℃ / min, cooling rate 0.7 ～ 1.0 ℃ / min, also can be customized according to user's needs rapid temperature change test chamber (time is 1-20 degrees / min adjustable); 9. Space temperature difference: After stabilization, the difference between the average temperature of the center of the working space and other points of the working space in any time interval, we often call it temperature uniformity; 10. Temperature extreme value: After weighing, the maximum and minimum measured value of the temperature that can be reached in the working space is the temperature range we often say (A: -20 ℃ ～ 150 ℃ B: -40 ℃ ～ 150 ℃ C: 60 ℃ ～ 150 ℃ D: -70 ℃ ～ 150 ℃ E: -80 ℃ ～ 150 ℃, if customers have higher requirements for low temperature, our company can customize liquid nitrogen refrigeration box according to user needs, the minimum temperature can reach -220 ), The above is the full text of "Explanation of Performance Confirmation of High and Low Temperature Test Chamber", please click to browse! Explain the performance confirmation of high and low temperature test chamber
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