Safety precautions

Please do not install, maintain, or inspect this instrument before carefully reading this user manual and accompanying materials and being able to use them correctly< br />
After familiarizing oneself with the knowledge of instruments, safety information, and all relevant precautions, use them< br />
In this user manual, the security level is divided into&quo; Danger; And&quo; Pay attention< br />
The dangerous situation caused by incorrect operation will lead to death or serious injury< br />
The dangerous situation caused by incorrect operation will result in general or minor injury or cause

The hardware of the object is damaged< br />
Note: Depending on the situation; Attention; Graded matters may also have serious consequences< br />
Please follow the precautions for both levels< br />
Prevent electric shock

Please do not disassemble the instrument when it is powered on, otherwise there may be a risk of electric shock< br />
When conducting maintenance or repairs, please do not connect the external working power supply of the instrument, otherwise there may be a risk of electric shock< br />
Please ensure that the instrument has a good grounding device< br />
Work such as wiring or inspection should be carried out by professional technical personnel< br />
Preventing fires

Please do not install the instrument next to combustible objects. Directly installing on or near flammable materials can cause a fire:

Unless otherwise specified by the user, this instrument is not suitable for installation in flammable and explosive environments or in situations with intrinsic safety requirements< br />
Please install an air switch with overload and short circuit protection on the upper end of the external power supply lead of the instrument, otherwise the short circuit of the power supply lead will cause large current to pass through and cause a fire:

Prevent damage

The voltage applied to each terminal can only be the voltage specified in the component manual,

Cracks, damages, etc< br />
Confirm that the cable is connected to the correct terminal, otherwise it may explode or be damaged< br />
Always ensure the correctness of positive and negative polarity to prevent bursting and damage< br />
Handling and installation

Do not use the instrument panel; Place debris on top< br />
Prevent screws, cable fragments, or other conductive or oily flammable objects from entering the interior of the instrument< br />
Prevent the instrument from falling or being subjected to other strong impacts< br />
Please use in the following environment:

Surrounding temperature& nbsp;& nbsp;- 10 ℃~+50 ℃ (non freezing)

-10 ℃~+40 ℃ when using dustproof structure accessories

Surrounding humidity& nbsp;& nbsp; Below 80% RH (without condensation)

Storage humidity& nb