How makes the temperature affect the results of a hygrometer?

As you know, anything has its errors, none of them can be 100% accurate. So does the best moisture meter. 

Three factors affect the measurement results of a hygrometer:

  • The position where you measure
  •  Hygrometer conditions (dirty, clean or out of calibration)
  • The temperature of the area you measure

The first issue is easily controlled and different hygrometers will often have tips to determine the most suitable location included in the owner’s manual to help you avoid problems.

Digital Moistur Meter

As for the second issue, this depends largely on how often you maintain and care for the meter. You can bring out reputable facilities for monthly warranty. Or simply clean it often when you find the machine dirty or unclean. If the sensor system of the device is contaminated too badly, you cannot fix it yourself. Let’s replace it.

However, the third problem, the temperature of the surrounding environment, is an issue that many carpenters may miss when checking the accuracy of a moisture meter. They thought it did not affect the measurement results of the device. But not? It has a great influence. You can’t accurately measure the moisture content of objects and put out temporary preventive measures. 

 Therefore, In this article, I will discuss the impact of temperature on measurement results and the ways to solve this problem for you who want to learn to know. Let’s get started,

How do different types of temperatures affect measurement results

In winter weather, you will encounter many challenges when trying to accurately predict moisture. The temperature of the air directly affects the amount of water vapor that air can hold. If temperatures drop, the air can hold less and less moisture. In contract,  the air temperature rises, the air can contain more water molecules and its relative humidity decreases. As the temperature decreases, the relative humidity will increase. When the temperature drops to 20, the relative humidity will double.

Specifically, temperature affects the quality of wood as follows:

In hotter climates, it’s a good time to preserve the wood. Because the amount of steam from the wood will be sealed, which balances the temperature between the environment and the moisture of the wood and make it drier.

In colder environments, the moisture in the air tends to decrease, also known as condensation. The moisture will not evaporate but will collect on the wooden surface. That makes the wood moist and adds moisture.

Therefore, it is important to check the moisture of an object with the temperature of the air. It directly decides the analysis result and the quality of the material later.

How to solve the problem of humidity error due to temperature

There are several ways to deal with the problem of high or low temperatures when performing a humidity test:

Control the temperature of the environment: You need to check indoor humidity values and climate control of the environment. It’s quite simple, you need to set the room temperature to the optimal level for your hygrometer and let the room temperature stable before reading. This assists to completely avoid the problem of the effect of temperature on the determination results.

Measure many times: In case, the ambient temperature changes constantly throughout the day, try to measure it many times, for example when the temperature is high, low and in the middle. You can check humidity when it is cool in the morning, at 2 or 3 pm when the temperature is high, and in the evening when the temperature is mild.

Check dew point: If your humidity meter is set to a dew point function. Then you should change the feature from measuring humidity to measuring dew. This feature set tells you the temperature that air needs to reach saturation. The dew point is sometimes considered a more reliable estimate of the actual humidity of the air because it is not affected by temperature.

In conclusion

I have expressed to you about the great effects of temperature on humidity measurement results. Therefore, before measuring something, Let’s remember to check the temperature of the environment and air first.  To make sure that the measurement results are the most accurate. Finally, Hopeful, the issue I mentioned today is useful for you. Thank you for taking the time to read.

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