3.4 Installation
3 - 32
© Precitec GmbH & Co. KG • EN 09/2019
3.4.2
Connecting the cooling water system
(trained personnel only)
Fig. 3-8
Installation: Water connections
(collimator)
Attention – Cooling water!
• For pure stainless steel circuits
use only
water with a conductivity value
prescribed by the laser manufacturer
(see the paragraph
.
If water cooling circuits consist of different metals, adhere
to the laser manufacturer's instructions.
• The temperature inside the water cooling circuit must be set in such a
way that condensation
cannot
form on the optics
(see dew point,
.
• The
maximum
pressure for the cooling water is 5 bar
(0.5 MPa)
. A minimum
cooling water flow rate of 1.5 l/min must be guaranteed.
• The supply lines
should
have an external/ internal diameter of ø6/ ø4 mm.
2
1
LC-
BA-
oW
as
1
Water connection M5,
supply hose
2
Water connection M5,
return hose
Connect the cooling water hoses to the relevant connections (1
and
2)
(M5)
.
The supply hose is connected to connection
(1)
and the return hose to connection
(2)
Attention – Corrosion in the cooling circuit!
To avoid any corrosion the instructions and maintenance intervals prescribed
by the machine manufacturer, laser source manufacturer or cooling unit
manufacturer must be observed.
To protect the water cooling circuit
(stainless steel)
against electro-chemical
corrosion, copper or brass connections must not be used. Only stainless steel
or plastic connections can be used.
