Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-C3000XZ~RFL-C12000XZ
e) If the ambient temperature is below -10℃, the cooling system (chiller) with both heating and cooling
functions must be activated, and shall keep it in full-time operation by 24 hours to avoid the fiber
delivery cable connector and modules inside the product that containing the always waterways from
freezing.
Figure 7 Schematic diagram of laser cooling system connection
3.3.2 Requirements for Delivery Cable Cooling System:
a) Water flow requirements:
b) RFL-HQBH model fiber delivery cable: 1.5L~2.0 L/min
c) RFL-QD model fiber delivery cable:2.5~3.0 L/min.
d) Pressure of liquid flow: < 0.6 MPa at the inflow.
e) Type of liquid exchange junction: Two-Touch Fitting M5 to ϕ6 mm.
f) Type of tube: outer diameter ϕ6 mm; inner diameter ϕ4 mm.
g) Direction of cooling liquid: unidirectional; connect the tube with the water-pipe strictly according to
direction shown on the layer of the tube.
h) Type of liquid: de-ionized water, condensed water, purified water; it is recommended to replace the
coolant once a month, not exceeding two months at most.
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