How to calibrate Humidity Chamber correctly?

The constant temperature and humidity Test Chamber is a test equipment used to simulate different temperature and humidity environmental conditions. Here are some common problems you may encounter and how to calibrate them:

How to calibrate the constant temperature and humidity Test Chamber correctly?  Picture 1

common problem

  1. Inaccurate temperature or humidity readings.

  2. Unstable temperature or humidity.

  3. The device is heating or cooling unevenly.

  4. The device is leaking or the Water Tank is insufficient.

Calibration method

  1. Temperature Calibration: Place the thermometer in the chamber and set the chamber to a known temperature. After waiting for a period of time, compare the thermometer reading with the temperature reading displayed by the Test Chamber. If there is a difference, a calibration adjustment is required.

  2. Humidity Calibration: Use a humidity calibrator to place in the chamber and set the chamber to a known humidity. After waiting for a period of time, compare the humidity calibrator reading with the humidity reading displayed by the Test Chamber. If there is a difference, a calibration adjustment is required.

  3. Equipment uniformity calibration: Place several thermometers or hygrometers inside the Test Chamber, and set the Test Chamber to a known temperature or humidity. After waiting for a period of time, compare whether the readings of each metering point are consistent. If there is a difference, a uniformity calibration adjustment is required.

  4. Equipment Water Tank capacity calibration: fill the Water Tank in the Test Chamber with water, and record the water capacity. Then set the Test Chamber to a certain humidity, after measuring for a period of time, pour out the Water Tank and record the remaining water capacity. Subtract the previously recorded water capacity from the remaining water capacity to obtain the amount of water used by the Test Chamber at that humidity. If the amount of water used is inconsistent with the capacity in the specification, a Water Tank capacity calibration adjustment is required.

NBCHAO reminds you: In order to ensure accurate and reliable test results, the constant temperature and humidity Test Chamber needs to be calibrated and maintained regularly. Calibration and maintenance should be performed by experienced technicians while following the equipment's operating manual.

Solutions to common problems

Also, here are some things that might help with common issues:

  1. Inaccurate temperature or humidity readings: Check that the sensor is damaged or needs to be replaced, check that the sensor is properly positioned, and make sure the sensor is at the same temperature or humidity as the chamber.

  2. Unstable temperature or humidity: Check whether the equipment is disturbed by the external environment, ensure that there are no excessive debris or samples inside the Test Chamber, and ensure that the Test Chamber is well sealed.

  3. Uneven heating or cooling of equipment: Check heating or cooling elements for uniformity, check if equipment needs to be cleaned or replaced, make sure there is no excessive debris or samples inside the chamber, and make sure the chamber is well-sealed.

  4. The equipment leaks water or the capacity of the Water Tank is insufficient: check whether the sealing of the Test Chamber is good, check whether the Water Tank needs to be cleaned or replaced, ensure that there are no too many sundries or samples inside the Test Chamber, and replenish the water in the Water Tank in time.

Finally, in order to maintain the performance and reliability of the Test Chamber, regular maintenance and maintenance are required. It is recommended to clean the interior of the Test Chamber regularly, and check the performance and condition of heating, cooling, control, sensors and other equipment, and replace or repair problematic parts in time. At the same time, it is recommended to carry out maintenance in accordance with the equipment operation manual and the maintenance instructions provided by the manufacturer to ensure the long-term stable operation of the Test Chamber.

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