Humidity and temperature chamber common 4 points of failure

Temperature humidity chambers (also known as climatic or climate test chambers) simulate the effects that a range of temperature and humidity conditions have on a product or material, for example telecommunications equipment or photovoltaic solar panels that are exposed to outdoor temperature and humidity conditions.

Humidity and temperature chamber common 4 points of failure: 

1. humidity and temperature chamber test, such as temperature changes do not reach the test temperature value, you can check the electrical system, troubleshooting one by one. If the temperature rises very slowly, we must check the wind circulation system, look at the wind circulation adjustment flap is open normal, and vice versa, check the wind circulation motor operation is normal. If the temperature overshoot is very powerful, then you need to adjust the PID setting parameters. If the temperature rises directly, over-temperature protection, then, the controller out of order, shall replace the control instrument.

2. Low temperature can not reach the test indicators, then we need to observe the change in temperature. Is the temperature drops very slowly, or the temperature to a certain value after the temperature has a tendency to rise again. The former should check whether to do low-temperature test before the studio drying, so that the studio to keep dry and then put the test samples into the work chamber and then do the test, whether the test samples placed in the work chamber is too much, so that the wind inside the work chamber can not be fully circulated, after excluding the above reasons, we must consider whether the refrigeration system failure, so we must ask the manufacturer's professionals to overhaul. The latter phenomenon is the use of equipment due to the environment is not good, equipment placed in the ambient temperature, the location of placement (after the distance between the box and the wall) to meet the requirements (in the equipment operating instructions are provided).

3. humidity and temperature chamber test, the actual humidity will reach 100% or the actual humidity and the target humidity is very different, the value is much lower, the former phenomenon: may be caused by the wet bulb sensor on the gauze dry, then we have to check the wet bulb sensor in the water tank whether the lack of water, the water level in the water tank is controlled by a water level controller Automatic control, check the water level controller water supply system whether the water supply is normal, the water level controller work is normal. Another possibility is that the wet ball gauze due to the use of a long time, or water supply water purity reasons, will make the gauze hard, so that the gauze can not absorb water and dry, as long as the replacement or cleaning gauze can exclude the above phenomenon. The latter phenomenon is mainly humidification system does not work, check the water supply system of humidification system, whether there is a certain amount of water in the water supply system, whether the water level control of humidification boiler water level is normal, whether the water level in the humidification boiler is normal. If the above are normal, it is necessary to ask professional maintenance personnel to check the electrical control system and overhaul.

4. humidity and temperature chamber in the test operation process when there is a sudden failure, the control instrumentation on the corresponding failure display prompts and has an audible alarm prompts. The operator can quickly check which type of fault belongs to the operation and use of the equipment in the troubleshooting chapter, you can ask professionals to quickly troubleshoot to ensure that the test is carried out normally. Other environmental testing equipment in use will also have other phenomena, it is necessary to specific phenomena, specific analysis and exclusion. Temperature and humidity test chamber but also regular maintenance, refrigeration system condenser needs to be cleaned regularly, for moving parts should be lubricated according to the instructions, electrical control system to regular maintenance checks, etc., these tasks are essential.

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