Laser Safety

Dangerous Warning:

Danger: Imminent hazards which, if not avoided, will result in death or serious injury.

Warning: Potential hazards which, if not avoided, could result in death or serious injury.

Caution: Potential hazards or unsafe practices which, if not avoided, may result in minor or moderate injury.

Caution: Potential hazards or unsafe practices which, if not avoided, may result in product damage.

Possible injury:

CO2 Lasers emit invisible infrared laser radiation at the 10.6 μm CO2 wavelength. Since direct or diffuse laser radiation can inflict severe corneal and skin injuries, always wear eye protection when in the same area as an exposed laser beam.

• 75 WATTS MAX,Wavelength 10200-10800nm.
• Class 4 laser product, Invisible laser radiation, Avoid eye or skin exposure to direct or scattered radiation
• Laser Radiation Warning.

Getting Started

Inspection the packaging:

1. Inspect all shipping containers for signs of damage, Severe deformation and damp.

2. Inspect the integrity of the sealing tape.

3. Inspect the position of Laser in the box is correct after the unpacking (loose in the package of plastic bubble).

Packing List:

Laser, Manual, Test Report, Delivery note

Optional configuration:

Fan connection and installation requirements:

Shell on the chassis shall be fitted with exhaust devices (exhaust fan can be installed in the chassis in whole or in the middle of both sides of the chassis) and the chassis are required to have vents,Chassis to ensure the air can be recycled, heat can be promptly discharged from the chassis to ensure a good thermal performance lasers.

Laser front cover holes 4 holes for the process, non-mounting holes may not be used, otherwise it will result in laser damage.

Laser front and back covers are laser’s mirror stand, cannot hard contact with any part of the machine frame, or the laser may be damaged. Could use soft materials contact with the front cover to seal the light path and protect the laser window lens.

The installation of a fixed laser floor thickness shall be not less than 8MM, in order to prevent equipment working on the laser optical vibration impact.
Figure 2: Technological Hole mustn’t be used

Choice and connection of Power:

• DC switching power chose by customer will be matched to the requirements the lasers, Voltage is 48V, current should be not less than 12.5A.
• The connection cannot be reversed between the power and laser, Otherwise it will damage RF Driver IV.

Control signals connections:

• The external control signals of the Laser are accessed through the back panel BNC connector of the laser.
• The Laser can work by varying the duty cycle from 0 to100% and control laser power by Pulse width modulation(PWM).

Tickle pulse signals:

The laser requires a 1μs tickle pulse delivered at a 5kHz clock frequency from the controller. Its role is to allow the laser tube in the tickle pulse condition, at this time as long as the input signal has very small pulse width or duty cycle, it will immediately generate laser. If there is no tickle pulse signal, the output laser power will lead to instability, affect the results.

Pulse width modulation (PWM):

Pulse width modulation or PWM, controls laser power by varying the duty cycle of the laser. When the external control input TTL to laser, TTL signal of the low

voltage range should be 0 to 0.5V (laser off), The logic high voltage, ranges from

+3.5V to +5V (laser on), control laser power by the duty cycle, adjust to TTL Pulse width by the external control, the maximum modulation frequency of the Laser is 20KHZ.

As following: Waveform shown below is a typical 0-5V for TTL signal, duty cycle (or Pulse width) adjustable, adjustable frequency:

The back panel Description:

The panel including (see Installation Figure 1): Power input terminals.Switch.Power indicator light(green light).Laser indicator light(green red).BNC connector(signal input)

Specific steps are as follows:

48VDC power access to laser power input terminal block, the external control

signals access to laser BNC connector through Coaxial cable.

Open the DC power, the laser switch is allocated the 'ON' from the 'OFF', at this time the green indicator should illuminate (shown that Laser has been normally powered). PWM signal is set to a certain duty cycle by Controlling card software on the computer, at this time the red indicator should illuminate (shown that it has laser output).

Remarks: Hit * part of the installation requires special attention.

Series CR Lasers Parameters and Installation diagram

1. Series CR Lasers Parameters