Grinding Ball,Grinding Balls,Grinding Media Ball,Grinding Steel Ball SHANDONG SHENGYE GRINDING BALL CO., LTD , https://www.sygrindingball.com
1. Keep the appearance of the box clean and tidy;
2, to avoid dust intrusion into the box;
3, to avoid external forces hit the box;
4. Prohibit chemicals from contacting the equipment;
5. Keep the laboratory dry;
6. Absolutely prohibit the setting temperature from exceeding the maximum temperature specified by this equipment;
7. Check the circuit control system before each boot.
8. Confirmation of power supply and grounding wire;
9. Whether the power cord is properly connected according to the specifications and is indeed grounded;
10, in the operation, unless it is absolutely necessary, please do not open the door at will, otherwise it may lead to the following adverse consequences:
l The high-temperature air flows out of the box........................ is very dangerous;
l The inside of the door is still kept at a high temperature............ causing scalding;
l High-temperature air may trigger a fire alarm and cause malfunctions;
11. Please note that this machine must be safely grounded to avoid electrostatic induction;
12. Avoid turning off and restarting the refrigeration unit within three minutes;
13. If the sample is placed inside the box and needs to be connected, please use an external power supply for the power supply of the sample. Do not use the power supply of the unit directly.
14, when put into high-temperature samples for low-temperature test should pay attention: the time to open the door should be as short as possible;
15. Circuit breakers and over-temperature protectors provide safety protection for the test products and operators of the machine, so please check them regularly;
16, absolutely prohibited the test explosive, flammable and highly corrosive substances;
17. The lights shall be turned off except when necessary; the rest of the lights shall be turned off;
18, before doing low temperatures, the studio should be wiped dry at 60 °C for 1 hour;
19, when doing high temperature test, when the temperature exceeds 55 °C above, do not open the cold machine;
20. In any section perpendicular to the prevailing wind direction, the sum of test load cross-sectional areas shall not be greater than one-third of the working cross-section at that location;
21, the rated voltage of this equipment is 380V three-phase five-wire, if the external voltage is not stable, it is necessary to prepare a power supply;
22. This equipment must be used in an environment below 30°C;
23, ventilation fans should be installed in the laboratory to maintain indoor ventilation;
24, when doing high humidity test, observe the water level of the humidifying water tank, and add pure water in time;
25. The equipment's wastewater discharge system must be installed in place;
26. Clean the condenser dust every two months;
27, the inside of the evaporator should be regularly maintained;
28, carefully check the cold oil mirror and compressor pressure gauge before each operation;
29ã€Whether the suction and exhaust valve and the valve that should be opened in the system before the compressor is turned on are in the correct position, and check whether the power voltage and ambient temperature are within the specified range.
30. During the operation of the compressor, the suction and discharge pressure shall not exceed the scope of use, listen to the sound of the compressor's operation, and other components shall not have a knocking sound except for the clear landing sound of the intake and exhaust valves;
31. If leakage is found during operation of the compressor, it should be dealt with promptly;
32. When the compressor is parked for a long period of time, the refrigerant should be recovered into the reservoir and the exhaust shut-off valve closed;
33. After the test is over, the power of the whole machine will be cut off;
34. After the end of each test, the sample should be taken out and the equipment liner should be cleaned;
35. Please read the instructions carefully before operating the machine.
Maintenance and maintenance of constant temperature and humidity test chamber: