SAFETY
-9-
Radiation Class B device.
It can meet the radiation requirements of residential area and industrial area.
It also can be used in residential area which power is supplied by public low
voltage circuit.
EMC device can be classified by power nameplate or technical data.
Hi-zone welding machines belong to Class A.
§1.4 EMC measure
In the special situation, the specified area may be affected,
the standard of radiation limit value has been complied with
(eg: The device, which is easy effected by electromagnetism,
is used at the installation location, or there is radio or TV near the installation
location). In this condition, the operator should adopt some appropriate
measures to remove interference.
According to the domestic and international standards, the ambient devices’
electromagnetism situation and anti-interference ability must be checked：
Safety device
Power line, Signal transmission line and Date transmission line
Date processing equipment and telecommunication equipment
Inspection and calibration device
The effective measures avoid the problem of EMC：
a) Power source
Even though the power source connection meet rules, we still need to take
additional measure to remove the electromagnetic interference. (eg: Use
the right power filter. )
b) The welding line
Try to shorten the length of cable
Put the cable together
Be Far away from other cable
To Next Page