Those who have learned nature must have an ozone layer in the atmosphere. Today I will introduce to you the ozone aging test chamber. Ozone content in the atmosphere is very small but it is the main factor for rubber cracking. The ozone aging box simulates and strengthens the ozone conditions in the atmosphere, studies the rule of ozone on rubber, and quickly identifies and evaluates the anti-ozone aging performance and anti-ozonant The method of protection efficiency, and then take effective anti-aging measures to improve the service life of rubber products. The following is the operation flow of ozone aging test box.

1. Turn on the main power supply and power on the device;

2. Fix the sample on the fixture or place it on the turntable;

3. Press the "Start" button, "Turntable" and "Ozone" switches;

4. Set the ozone concentration and test temperature according to the test requirements.

(1) Operation method of the ozone concentration controller: click the "SET" button once, the green digital tube on the lower row of the instrument flashes, use the "" "position option to move the position of the digits to be changed, use the" ︾ "decrease key "︽" increase key can change the size of the set value. After setting, click the "SET" button once to return to the measurement screen.

(2) Setting method of test temperature: Click the "SET" button once, the "one" digit of the lower row of digits flashes, then press the increase key "︽" and decrease key "︾" to change the value; then press the bit selection key , ““ ”Moves to“ ten ”digits flashes, press the increase key“ ︽ ”and decrease key“ ︾ ”to change the value, and so on, use the“ <”shift key to move the number, use the“ ︾ ”decrease key And "︽" increase key can change each digit to reach the corresponding test temperature value. After setting, press the "SET" key twice, the meter returns to the normal working state measurement screen.

5. Set the test time according to the test requirements

(1) Display: During normal operation, the upper four-digit LED digital tube displays the delay value, and the lower four-digit LED digital tube displays the set value. "XX.XX" in the upper red display box is the real-time display value of the delay time, the unit is: XX hours and XX minutes, indicating the time the device has been running, and "XX.XX" in the lower red display box is the set value The display value of the unit is: XX hours and XX minutes, indicating the set value of the running time,

(2) Timing time setting method: Within the display range, the delay value of the relay can be arbitrarily set by using the increase key and the bit selection key. The first bit presses the bit selection key, the POW indicator lights, and the first digital tube below flashes , Press the increase button to set the first digit value, press the bit selection button, the bottom two digits flash, press the increase button to set the second digit value, and so on, you can set the third digit and the fourth digit value, At this time, the digital tube is still flashing. After about 8 seconds, the flashing stops automatically. Press the reset button to make the work indicator "POW" flash. The meter automatically returns to the normal working state. The pull-in time is automatically stored in the machine. Using the reset button or resetting the terminal or re-energizing can delay the delay. After the delay is completed, the relay will act according to its working mode.
pay attention:
After setting, be sure to see the red working indicator "POW" in the upper left corner of the meter is blinking (only the indicator "POW" is blinking, the counter will count)
After each parameter setting is modified, the nixie tube will still flash. You don't need to control it at this time. As long as you don't operate any key, wait for about 8 seconds, the meter will automatically return to normal working state.
In the whole setting process, it should be carried out continuously, and should not exceed 8 seconds between each two steps.

6. After the test is completed, the main power supply should be turned off, and after a natural temperature drop of 0.5h to 1h, take out the sample;

7. After removing the sample and placing it in the air for 1h ~ 2h, observe whether there is any crack on the surface of the sample;

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