Method and process for correct metering of high and low temperature alternating heat and humidity test chamber

First of all, we need to understand the measurement items, methods and calculations of the high and low temperature alternating heat and humidity test chamber:

A, metering characteristics: temperature and humidity deviation, temperature and humidity fluctuations, temperature and humidity uniformity

B, noun explanation

a. Uniformity: The difference between the test points (temperature and humidity) at a certain moment in the working space under high and low temperature alternating heat and humidity test chamber. (Simple defined as: temperature difference between point and point)

b. Volatility: The change of the center point parameter of the working space with time under the steady state of the high and low temperature alternating heat and humidity test chamber. (Simple defined as: the beat value of a point)

c. Deviation: The up-and-down deviation between the measured maximum value and the measured minimum value and the nominal value of each measured point in the working space under steady state conditions.

C, measurement method

1. The measurement is carried out under no-load conditions. If there is a load, the load should be stated in the certificate;

2, metering temperature and humidity points should generally select the upper limit, lower limit and center point of the equipment use range, but also can choose the actual temperature and humidity points according to user needs;

3. Location of metering point: When the volume of high and low temperature alternating heat and humidity test chamber is less than 2m3, the temperature point is 9, the humidity point is 3 equipment volume is more than 2m3, the temperature point is 15 and the humidity point is 4.

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