Yueming CMA0604-B-A Product Operation Manual page 20

The followings are required for operating of installing the electric equipment:

It is a must to use the specified fuse provided by the manufacture;

Immediate disconnection of power supply is required in case of power failure;

Unless otherwise prescribed, power disconnection of the electric part is required for maintenance;

First check if there is live power on the insulated part, and then perform the treatment of earthing and open
circuit, and perform insulation for the nearby live (charge) parts;

Make regular check on the electric equipment. Timely correct failure like poor contact or burnt power cord;

While operating live (charge) parts, minimum two persons are required at the site for pressing the
emergency stop button or disconnecting power supply if necessary; Mark the working area with
red-and-white band and warning sign;

It is a must to use insulation tools.
2.5.4
Hazard of processing outgrowth
During laser processing, outgrowth may possibly generated, and their hazard must satisfy the requirements
specified in Appendix A for example of processing outgrowth as national standard GB 18490-2001 laser processing
machine. The abstract is as below:
A1.1 Plastic cutting
When cutting plastics, various kinds of substances with potential risks may be generated. At lower
temperature, aliphatic hydrocarbon is produced; at higher temperature, aromatic hydrocarbon (e.g. benzene
PAH) and polyhalo-polynuclear hydrocarbon (e.g. dioxin, furan) are increased. Some of theses substances
may possibly generate cyanide, isocyanate (PU), acrylate (PMMA) and hydrogen chloride (PVC).
Medical influences include:
--------Toxic: Cyanide, CO, derivative of benzene
------- Allergy source/irritation: isocyanate, acrylate
------- Respiratorytract irritation: formaldehyde, acradehyde, amine;
------- Carcinogenesis: benzene, some PAH substances
A1.2 Surface modification
Generally, there is no noticeable outgrowth, but sometimes heavy metal steam is generated.
A1.3 Cutting paper and wood
General fibrin outgrowth, ester, acid ethanol, benzene
During laser cutting, the smoke generated may be very toxic. The smoke is removed by upper exhaust
blower system;
Attention
Cutting with abnormal blower system is prohibited.
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