HUAYUAN SLG-200HF, Инструкция по эксплуатации, Страница: 15 / 53

8

The self-control mixed coolant liquid that used in high temperature (over 38
℃
)
The treated water can only be used as coolant when the environment temperature is higher than 0
℃
. The treated
water cool the system very well when used in a warm environment.
The treated water is a mixed water with water(which meet the below purity standard) and benzotriazole with
percentage of 300:1.

Water purity
It’s vital to control the CaCO3 content with a low level, to reduce the hurt to the cutting torch.
If use self-control mixed coolant liquid, please make sure the water always accord with the below table standard.
Both the lowest and highest index.
If use water without according with below lowest purity index, there will be too much precipitate on electrode,
which affect the water flow and make the arc not stable.
If use water without according with below highest purity index, there will be problem too. Too high purity
deionized water will leak from cooling system pipe.
Table 3 Related value of water purity
Related value of water purity
Conductivity μS/cm
(25
℃
)
Electrical resistor
mΩ•cm (25
℃
)
NaCl content
(ppm)
CaCO
3
content
(ppm)
Pure water (Just for
reference)
0.055 18.3 0 0
Highest purity 0.5 2 0.206 0.171
Lowest purity 18 0.054 8.5 7.35
Highest purity of drinking
water (Just for reference)
1000 0.001 495 428
Panel Function
1. Power source front panel