Emerson 48330 User Manual

 

 

In thunderstorms, a strong electromagnetic field will be generated in the air. 

Therefore the equipment should be well-earthed in time to avoid damage by 

lightning strikes. 

4. ESD 

The static electricity generated by the human body will damage the static 

sensitive elements on PCBs, such as large-scale ICs. Before touching any 

plug-in board, PCB or IC chip, ESD wrist strap must be worn to prevent body 

static from damaging the sensitive elements. The other end of the ESD wrist 

strap must be well earthed. 

5 Short-circuit 

During operation, never short the positive and negative terminals of the MFU 

of the system or the non-earthing terminal and the earth. The power system is 

a constant voltage DC power equipment, short circuit will result in equipment 

burning and endanger human safety. 

Check carefully the polarity of the cable and connection terminal when 

performing DC live operations. 

Never wear a watch, bracelet, ring, or other conductive objects during 

operation. 

Insulated tools must be used. 

Before any operation on battery, read very carefully the safety precautions for 

battery transportation and the correct battery connection method. 

Non-standard operation on the battery will cause danger. In operation, 

precautions should be taken to prevent battery short circuit and overflow of 

electrolyte. The overflow of electrolyte will pose potential threat to the 

equipment, it will erode the metal objects and PCBs, thus causing equipment 

damage and short circuit of PCBs. 

Before any operation on battery, pay attention to the following points: 

Remove the watch, bracelet, bangle, ring, and other metal objects on the wrist. 

Use special insulated tools. 

Wear an eye protection device, and take preventive measures. 

Wear rubber gloves and apron to guard against electrolyte overflow. 

In battery transportation, the electrode of the battery should always be kept 

facing upward. Never put the battery upside down or slanted.