Shenzhen Zhongjian Testing equipment Manufacturer pin Use safety information
Troubleshooting of high and low temperature test chamber
Maintenance method of high and low temperature test chamber: check the leakage of the refrigeration system of the high and low temperature test chamber. Use a leak detector and soapy water to check where the leakage point is. If hot gas bypass is found Solenoid valve If the valve rod of the valve is cracked and there is a crack, it is necessary to replace the solenoid valve. If leakage is found in other places, it is necessary to repair the leakage with oxygen welding, and then refill the system with fluorine, so that the system can resume normal operation.
For the failure phenomenon that the low temperature of the high and low temperature test chamber cannot be maintained, the analysis and judgment are basically from easy to difficult, from outside to inside, from electrical to air conditioning. Familiarity and understanding of the principle and working process of the high and low temperature test chamber is the basis for analyzing and judging the failure. Only by deeply understanding the working principle and working process of the high and low temperature test chamber, can we quickly solve various problems in the operation of the high and low temperature test chamber.
Hazard and personal safety information
one High temperature scald
The temperature of the high and low temperature test chamber is very high during the high temperature test. If the box needs to be opened during or just after the test door Be careful not to burn.
Exhaust when the refrigerator is working Copper tube Do not touch during operation at high temperature to avoid scalding.
two Low temperature frostbite
The temperature of the high and low temperature test chamber is very low during the low temperature test. During or just after the test, special care shall be taken to open the door to avoid frostbite.
three Electric shock
Although the equipment has sound electric shock prevention measures, it is still necessary to pay attention, especially the electrical control system. Do not touch the electrical parts under working conditions.
Installation safety information
one , Power
The power supply of the high and low temperature test chamber uses the three-phase five wire system, and the equipment cable is a four core wire, three phase wires, and a zero wire. Please try to distinguish zero line. Because part of the load of the equipment and the control system are single-phase, the wrong connection of the neutral line will cause the equipment to be inoperative and damaged.
The grounding wire of the equipment is equipped with grounding wire pole. Ensure that the equipment is well grounded to make the equipment safe and reliable. The wrong connection of zero line and ground wire will lead to abnormal operation of the equipment.
If the extension cable is required due to the user's site and other factors, please ensure that the rated parameters of the extension cable and power supply can meet the power demand of the product.
two , Site
This equipment will generate a lot of heat during use. Please install the equipment in a well ventilated place.
Do not use this equipment near flammable materials or explosive environment.
Do not use in strong magnetic field and strong vibration environment.
Use safety information
Do not connect the power supply of the test object to the power supply of the equipment, or it will increase the power load of the equipment. Unless the equipment is provided with a power interface for the test object.
It is strictly prohibited to test flammable, explosive, highly corrosive and strong radiation materials.
Do not carry or repair the equipment when it is powered on or during operation
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