© 2016 SPI Lasers UK Ltd.
Commercial in Confidence
SM-S00500 Revision A 21 October 2016
redPOWER QUBE Cased Fiber Laser User Manual
The QUBE Fiber Laser includes a solenoid valve on the water inlet which regulates the flow of
cooling water, keeping the internal surfaces above the dew point to prevent condensation.
When using a chiller that does not include an internal bypass valve a bypass valve may be
required to enable uninterrupted operation of the chiller. Check valves suitable for use as
bypass valves are available in different sizes and with different connection types from
Swagelock and other vendors.
In order to fill and prime the QUBE Fiber Laser, the solenoid valve must be opened. This can
be done through FiberView or by sending a command over one of the digital interfaces.
With the key switch in the OFF position send the command to open the valve. With the valve
open and the chiller connected, switch on the chiller. Switch the chiller off and top up the water
level before operating the QUBE Fiber Laser for the first time.
Cooling water connections should be made and checked for leaks before making electrical
connections and powering up the QUBE Fiber Laser. To avoid potential water ingress the
electrical connectors should be capped while checking for leaks.
If an external cooling water leak occurs and water comes into contact with any of the electrical
connectors, allow the QUBE Fiber Laser to dry completely before operating.
Figure 12 Cooling Water Connections to QUBE Fiber Laser
7.4.2 PIPA-Q Optical Connector
It is essential that the PIPA-Q optical connector is adequately cooled with a source of clean,
chilled water in accordance with the specifications in Table 27. Operating the PIPA-Q optical
connector without an adequate flow of cooling water may result in catastrophic damage.
The inlet and outlet water connections are SMC MS-5HLH-6 type miniature hose elbows
suitable for 6mm LLDPE or polyurethane tubing.
The cooling circuit of the PIPA-Q optical connector should not be connected in series with the
manifold of the QUBE fibre Laser as the solenoid valve will interrupt the flow through the
PIPA-Q optical connector.
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