What should be paid attention to when purchasing ozone aging test chamber

The ozone aging test chamber is an essential testing equipment in the rubber industry, used to test the ozone aging resistance test performance of products. According to different customer test requirements, we can also be divided into static and dynamic two types.

What precautions should be taken when installing an ozone aging test chamber?

1. Site conditions

The site for installing the ozone aging test chamber requires a flat ground and good ventilation; There are no strong electromagnetic waves around; No strong vibration; There should be no flammable, explosive or corrosive substances or dust around the equipment.

2. Power supply conditions

The required power supply voltage for the ozone aging test chamber is 380V ± 10% 50 ± 0.5Hz three-phase five wire system. Note: Users need to equip the test chamber with air or power switches of corresponding capacity at the installation site, and this switch can only be used separately by this equipment

3. Environmental conditions

The ambient temperature around the test chamber must be maintained between 5 ° C and 30 ° C, and the ambient humidity should preferably be less than 85% RH

4. Water supply conditions

It is best to use purified water, distilled water, and deionized water during equipment testing. The resistance should be greater than 500 ohms.

What are the key points to pay attention to when operating an ozone aging test chamber?

1. Connect the power supply, activate the heating button, and set the temperature as required;
2. Press the ozone button, adjust the intake air on the ozone generator to between 1 liter/minute and 2 liters/minute, set the conversion switch to automatic, and the ozone aging test chamber will begin to generate ozone and control the ozone concentration;
3. Fix the sample on the sample rack, then hang it on the turntable and adjust the speed by starting the governor.
4. Turn on the lighting switch. Can clearly see the working situation in the laboratory;
5 settings completed. After the experiment, the power should be cut off and the ozone aging test chamber cleaned.

Note:

① When turning on the power, if the test temperature is lower than the ambient temperature, the refrigeration switch should be turned on;
② The third step is a static test. If conducting a dynamic ozone aging test, the distance and stretching frequency of the dynamic turntable should be adjusted according to the size of the sample. Then, all static sample racks should be removed, and the stretching switch should be turned on to start stretching the sample rack. When the turntable switch is turned on, the sample rack should also start rotating.

Key maintenance points for ozone aging test chamber:

1. Adhere to a neat appearance of the chamber.
2. Prevent external forces from hitting the chamber; Prevent dust from entering the chamber.
3. The laboratory adheres to a dry environment; Do not come into contact with chemicals.
4. Prevent the set temperature from exceeding the equipment temperature range
5. Before starting each machine, check whether the circuit control system is normal; Is the power cord properly connected according to standards and indeed grounded.
6. Check if the over temperature protector is set.
7. Ventilation fans should be installed indoors to maintain indoor ventilation.
8. During the spray experiment, it is important to investigate whether the water level in the water tank is too low.
9. It is necessary to install the wastewater discharge system of the equipment in place.
10. After the experiment is completed, cut off the power supply of the entire machine and clean the equipment liner.
11. The equipment must be operated by professional personnel.

Maintenance of ozone aging test chamber:

1. Before using the ozone aging test chamber, ensure that it is safely grounded to avoid electrostatic induction;
2. Overtemperature protectors and circuit breakers, which provide protection measures for the safety of test equipment users, must undergo regular and detailed inspections;
3. Regularly clean the condenser every 3 months. For compressors that use air cooling, the condenser fan should be regularly inspected and cleaned to ensure good ventilation and heat exchange performance; For compressors using water-cooled cooling, in addition to ensuring the inlet pressure and temperature, the corresponding flow rate should also be ensured, and the interior of the condenser should be cleaned of dirt to obtain its continuous heat transfer performance;
4. Adhere to dedicated personnel operating and maintaining equipment, and units with conditions can also send dedicated personnel to the manufacturer from time to time to learn, in order to gain more professional maintenance and repair experience and ability;
5. The ozone aging test chamber is generally relatively high, and we recommend placing it in a relatively benign temperature environment. Our temperature values include: temperature range: RT+10~65 ℃, temperature fluctuation: ± 0.5 ℃, temperature uniformity: ± 2 ℃, ozone concentration: 10PPHm~1000PPHm; Generally speaking, if your laboratory does not meet this condition, appropriate air conditioners or cooling towers are required;

What should I pay attention to when purchasing an ozone aging test chamber?

In terms of ozone concentration: Although the content of ozone in the atmosphere is not high, its impact range is not small. Ozone is mostly caused by the phenomenon of rubber cracking. In general, the concentration of rubber is usually maintained at around 100 pphm. Therefore, when purchasing instruments, we must choose a concentration range that can be calibrated and the experimental test results can achieve accuracy.

In terms of chamber volume: The volume that the chamber needs to withstand can only accommodate the tested sample. A too large chamber volume will only waste our money cost, as the material cost of the chamber changes with its volume.

In terms of temperature environment: We need to determine this based on our own environment. Some products need to be tested at temperatures below zero degrees Celsius, some at room temperature, and some at high temperatures, which are different from each other. So when choosing instruments, we must make the purchase based on the environmental temperature required for the experiment.

Ozone test purpose:

Ozone Test Chamber (or called Ozone Aging Chamber and Ozone Aging Test Chamber) is design according to rubber being sensitive characteristic of to ozone, it simulate the environmental to accelerate the rubber aging process by ozone. It compared to different products(test sample) aging result each other according to the same ozone aging test conditions/standards, and get to comparable aging resistance performance.

Tags：OTC-150A