Constant Temperature and Humidity Chamber FAQ and calibration method

The constant temperature and Humidity Chamber is an experimental equipment used to simulate the performance and durability tests of items under constant temperature and humidity conditions. It can control set temperature and humidity conditions to test the performance and durability of items under these conditions.

The constant temperature and Humidity Chamber is usually composed of a heating system, a refrigeration system, a humidification system, a control system, a working room, and an inlet and outlet device. The heating system and the cooling system can heat or cool the air to maintain the set temperature; the humidification system can evaporate the water into humidity to maintain the set humidity. The control system can precisely control parameters such as temperature, humidity, and time to meet the needs of different experiments. The design and construction of the studio and the feeding and discharging device will also vary according to different usage scenarios and experimental requirements.

common problem

1. The temperature and humidity inside the constant temperature and Humidity Chamber are unstable or inaccurate;

2. Uneven heating or cooling of the constant temperature and Humidity Chamber;

3. The controller of the constant temperature and Humidity Chamber is faulty or the display is inaccurate.

Calibration method

1. Temperature calibration: use a standard thermometer to put the thermometer into the constant temperature and Humidity Chamber, set the constant temperature and Humidity Chamber to a certain temperature, after the temperature is stable, compare whether the temperature inside the constant temperature and Humidity Chamber is consistent with the temperature of the standard thermometer, as There are differences, which can be calibrated by adjusting the temperature controller of the constant temperature and Humidity Chamber.

2. Humidity calibration: use a standard hygrometer to put the hygrometer into the constant temperature and Humidity Chamber, set the constant temperature and Humidity Chamber to a certain humidity, and after the humidity is stable, compare the humidity inside the constant temperature and Humidity Chamber with the humidity of the standard hygrometer. Consistent, if there is a difference, it can be calibrated by adjusting the humidity controller of the constant temperature and Humidity Chamber.

3. Time calibration: Use a standard clock or timer to set the time of the constant temperature and Humidity Chamber to a certain time. After the time arrives, compare whether the time inside the constant temperature and Humidity Chamber is consistent with the time of the standard clock or timer, and if there is any difference , which can be calibrated by adjusting the clock of the constant temperature and Humidity Chamber.

Note: The above calibration method is for reference only, and the specific calibration method depends on the model and specification of the constant temperature and Humidity Chamber. It is recommended to check the user manual of the device or consult the manufacturer before calibrating.

Calibration steps

The calibration method of the constant temperature and Humidity Chamber generally includes the following steps:

1. Calibrate the temperature: Use a thermometer of known accuracy to place the thermometer inside the constant temperature and Humidity Chamber and set the temperature to the target temperature. After the temperature is stable, compare the temperature of the constant temperature and Humidity Chamber with the reading of the thermometer, and adjust the control parameters of the constant temperature and Humidity Chamber according to the difference until the readings of the two are consistent.

2. Calibrate the humidity: Use a hygrometer of known accuracy to place the hygrometer in a constant temperature and Humidity Chamber and set the humidity to the target humidity. After the humidity is stable, compare the humidity in the constant temperature and Humidity Chamber with the readings of the hygrometer, and adjust the control parameters of the constant temperature and Humidity Chamber according to the difference until the readings of the two are consistent.

3. Calibrate time: use a timer or clock of known accuracy to time in a constant temperature and Humidity Chamber, compare the readings of the constant temperature and Humidity Chamber timer and the known timer, and adjust the constant temperature and Humidity Chamber timer according to the difference until Both readings agree.

North and South Chao reminds you: the calibration of the constant temperature and Humidity Chamber should be carried out regularly to ensure its accuracy and reliability. At the same time, when performing calibration, care should be taken to keep the environment stable and avoid external interference and errors.