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High and low temperature test chamber operating procedures
1. Startup steps:
1. Close the "Total Power" switch of the test chamber.
2. Turn on the power of the power distribution cabinet.
3. Turn on the cooling tower power supply and water supply switch. (This step is not required if it is air-cooled)
4. Press the “Power Switch†on the front panel of the machine and the control system will be powered.
Second, matters needing attention
1. Avoid turning the refrigerator off and on within 15 minutes.
2. During operation, please do not open the door unless absolutely necessary, otherwise the following adverse consequences may result:
· The high temperature airflow rushed out of the box, causing burns.
• High temperature air may trigger a fire alarm and cause malfunction.
· The inside of the door is still hot, causing burns.
3. It is absolutely forbidden to test explosive, flammable and highly corrosive substances.
4. When the test box is installed, the case body must be grounded. If the test box is not grounded, it will be very dangerous if it leaks.
5. If a hot test sample is placed in the box, use the external power supply for the power supply control of the test product. Do not use the power supply directly.
When placing a high temperature sample for low temperature test, it should be noted that the time to open the door should be as short as possible.
6. Circuit breakers and over-temperature protectors provide the safety of the test products and operators of the machine and require regular inspection.
7. The lights should be turned off except when necessary.
8. Dry the studio before doing low temperatures.
9. In any section perpendicular to the dominant wind direction, the sum of the cross-sectional areas of the test loads shall not be greater than three of the working sections at that location.
One of the points.
10. It is normal for the test chamber to have smoke and odor removal during the first week of high temperature, because the test chamber is in the process.
At the time of manufacture, there is lubricating oil on the steel plate used, so the new test box will produce soot when it is first used.
Raw odor.
11. Do not open the studio door immediately after the test to avoid the impact of hot air on the operator. If necessary
When taking out the test sample, you must wear insulated gloves to avoid burns.
12. All samples should be placed evenly, and the test should be placed in the effective space of the studio.
13. When plugging and unplugging the communication interface between the test box and the computer, you must first turn off the computer power and never allow it to be charged.
Plug and unplug. The hot plugging may cause damage to the instrument communication port or computer communication port.
14. If the test chamber is not equipped with a humidification function, pay attention to the difference in use and requirements when reading the instructions.
15. When the test is over, always use the main power switch when the test box is not needed.
16. The cooling method of this series is air-cooled, which is single and double. The manual is air-cooled, single and double universal. read
Pay attention to the difference between the use and the requirements when reading the manual.
17. "R404A" in the specification refers to the "high temperature level" in the refrigeration system, and "R23" refers to the "low temperature level" in the refrigeration system.
The refrigerants used are "R404A" and "R23", respectively.
18. Test box with lighting function, the lighting should not be always bright. Some high temperature chambers have a test temperature of 150 degrees or more.
In order not to install the light, the switch on the panel is useless.
Three. Fault self-test
During the use of the test box, the following phenomenon is normal, so please feel free to use it.
1. During the use of the equipment, the water pipe turns yellow and there is water rust in the water tank, which is caused by the oxidation of water in the air for a long time.
It is a normal phenomenon. Wash it off with water. (The test water must use pure water or distilled water)
2. When the ambient temperature is too high, the cooling rate is relatively slow, which is a normal phenomenon.
3. It is normal for the test chamber to have smoke and odor removal during the first week of high temperature, because the test box is manufactured,
The steel plate used has lubricating oil on it, so the new test box will produce the odor caused by the burning of the fume when the high temperature is first used.
It is normal.
4. The equipment is overpressured because the ambient temperature is too high. Please control the ambient temperature between 5~28 °C and the relative humidity is less than 85%.
Location, you can.
Pre-operation check
1. Confirmation of power supply and grounding wire
The power supply wire diameter must be equal to the required wire diameter. Otherwise, the load will be severe during the operation of the equipment, which may easily cause the load to burn out.
2. If the power cord is properly connected according to the specifications, confirm the grounding.
3. Check the over-temperature protector, whether the setting is good (it has been adjusted at the factory, generally no adjustment is needed)
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