Wuhan Raycus Fiber Laser Technologies Co., LtdUser Guide RFL-A2000D-3000D Ver.1.04WARNING: You must use appropriate laser safety goggles whenoperating this device. The laser safety goggle is selected according tothe range of wavelengths emitted from this product. The end user mustensure that the laser safety goggles used protects against light emittedby the device over its entire range of wavelengths: 900nm~1100nm.Please verify that the personal protective equipment (e.g. enclosures,viewing windows or viewports, goggles, etc.) being utilized is adequatefor the output power and wavelength range.1.3 Optical SafetyAny dust on the end of the QBH optical cable can burn the lens and damage the laser.CAUTION: If the output of the device is delivered through a lens withan anti-reflection coating, make sure that the lens is of good quality andclean.1.4 Electrical Safety(1) Make sure the product is grounded through the PE line of the AC power cord. Thegrounding must be firm and reliable.WARNING: Any interruption from the protective earth can result inpersonal injury.(2) Make sure that the correct voltage of the AC power source is used.