Tape constant temperature and humidity box maintenance note summary

Tape constant temperature and humidity box maintenance note summary

Tape constant temperature and humidity box maintenance note summary, in order to safely and reliably eliminate machine failures, there are many local parties in the use of the need to pay attention, the following Haida technicians for everyone to sort out some related maintenance issues:

1 , constant temperature and humidity test box handling considerations:

1 ) Using a reciprocating force compressor, the state of inclination of the transport state tiger is under 45 . Otherwise, the compressor | frozen oil will enter the low pressure chamber from the return air fluid in the pipe. At this time, when the compressor is powered, it operates.

2 ) The freezing stick is sucked into the cylinder because the compression ratio inside the cylinder is set according to the volume of gas. The liquid is not easily compressed, so it will cause the load of the compressor to increase rapidly, causing damage to the compressor; at the same time, the refrigerant oil may also enter the condenser with the refrigerant.

3 ) Plugging the capillary to form a plugging failure when the filter dries into a fine capillary.

2 , maintenance site notes:

1 ) The repair site should be flat, spacious, and well-ventilated. There should be no open flame when discharging the equipment and adding refrigerant.

2 ) When the concentration of refrigerant R12 in the air is too large. Can cause suffocation. In the event of an open flame, it is prone to fire.

3 ) When the concentration of R134a in the air reaches a certain value, the agent will stimulate the skin and eyes. The concentration of R600a in the air reaches a certain value. In the event of a fire, it is prone to explosion or burning.

3 , equipment and device placement precautions:

1 Conditional maintenance department, acetylene (or liquefied petroleum gas) cylinders and oxygen cylinders are best placed separately. And put them

The distance between the best is more than 3m .

2 The refrigerant cylinder should be upright.

3 Normal compressors should be upright and plugged to prevent dirt from entering. For damaged R600a compressors. It should be sealed after being placed in the mouth so as to prevent the residual refrigerant inside it from causing fire and other consequences.

4 The dry filter can only be opened when used.

4 , repair box notes:

  Do not burn or scratch the cabinet or liner when servicing the equipment cabinet. therefore. When performing gas welding on the evaporator. It is best to place an iron plate on the bladder to insulate it.

5 , electrical system maintenance precautions:

1 ) Because of the electrical system to use 380V voltage supply. So before removing the electrical system, you must unplug the power cord. So as not to be shocked. When disassembling the device, it is important to remember where each color line is located. When replacing a multi-pin device, it is best to remove the line by one side, that is, remove a line from the old device and install it on the same side as the new device on the same model.

2 ) The ground wire can not be inserted wrong. Generally speaking, the yellow-green two-color wire is the ground wire, and the pin connected with the metal shell is the grounding terminal.

Tape temperature and humidity box maintenance notes summary, the above is the equipment often appear some maintenance precautions, the operator encountered similar problems, and then the right medicine, familiar with the device structure, I believe all problems will be solved. More questions about the test box Please call Haida Instruments.

Source: Dongguan Haida International Instruments    Reproduced without permission! (Or: if you need to reprint, indicate the source)