reci R20 Manual de usuario
CO2RF Laser R20
Instruction Manual
Zhejiang Reci Laser Technology Co., Ltd.
浙江热刺激光技术有限公司
Zhejiang Reci Laser Technology Co., Ltd.
- 1 -
Content
Chapter 1 Product Introduction ............................................................................................ - 3 -
1.1 General Information ................................................................................................. - 3 -
1.2 Description ................................................................................................................ - 3 -
Chapter 2 Specifications ....................................................................................................... - 3 -
2.1 Laser System Specification ...................................................................................... - 3 -
2.2 Integrated RF Power Supply Specification .............................................................. - 4 -
2.3 DC Power Supply Specification ............................................................................... - 4 -
2.4 Fixing locations ........................................................................................................ - 4 -
2.5 Technical Information ............................................................................................... - 5 -
2.6 Environmental Specification .................................................................................... - 5 -
2.7 Coolant Specification ............................................................................................... - 5 -
2.8 Nitrogen Specification .............................................................................................. - 7 -
Chapter 3 The Installation .................................................................................................... - 8 -
3.1 Installation ................................................................................................................ - 8 -
Chapter 4 Pin Connection Description ............................................................................... - 10 -
4.1 Communication Interface ....................................................................................... - 10 -
4.2 Functions Reequipment .......................................................................................... - 11 -
4.3 Common Problem ................................................................................................... - 11 -
4.4 Serial Port Specification ......................................................................................... - 12 -
Chapter 5 Operating Instruction ......................................................................................... - 15 -
浙江热刺激光技术有限公司
Zhejiang Reci Laser Technology Co., Ltd.
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5.1 Button Description .................................................................................................. - 15 -
5.2 Specific details for operation .................................................................................. - 15 -
5.3 Test Status of RF laser .......................................................................................... - 16 -
5.4 Normal Problem ..................................................................................................... - 16 -
Chapter 6 Duty Cycle Description ...................................................................................... - 17 -
6.1 Power Description .................................................................................................. - 17 -
Chapter 7 Maintenance ....................................................................................................... - 17 -
7.1 General Cleaning .................................................................................................... - 17 -
7.2 Replacing cooling water periodically ..................................................................... - 17 -
Chapter 8 Others ................................................................................................................. - 18 -
浙江热刺激光技术有限公司
Zhejiang Reci Laser Technology Co., Ltd.
- 3 -
Chapter 1 Product Introduction
1.1 General Information
Before installing or operating R20 RF laser, all personnel must be familiar with the Health and Safety issues
covered in the Safety Instructions and Precautions manual.
1.2 Description
The R20 RF laser assembly consists of sealed cavity, a water-cooling system, and a finely turned optical
correction system.
Figure 1 Laser Introduction
Chapter 2 Specifications
2.1 Laser System Specification
Laser tube
Sealed cavity, RF excited, diffusion cooled
Wavelength
10.6μm (9.3μm optional)
Power range Rated (Watts)
20 - 150 W
Peak Power (Watts)
300 W
PO Power
100 W
Excitation frequency
81 MHz
Expected tube lifetime
(This is an expectation not a guaranteed figure)
>20,000 hrs
Energy
10 - 200 mJ
Typical Power Stability (at start up)
<± 3.5%
External Dimensions
708 x 160 x 152 (mm)
Weight
28.5 Kg
浙江热刺激光技术有限公司
Zhejiang Reci Laser Technology Co., Ltd.
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Table 1 Laser System Specification
2.2 Integrated RF Power Supply Specification
Output power peak
3 kW
DC Input
50V+/-1V (imax=70A)
Pulse Width Range
0 – 520 μs
Frequency
1 – 100 kHz (Maximum)
Duty Cycle (Range)
4—52%, 4—60%
Table 2 RF Power Supply Specification
2.3 DC Power Supply Specification
Output Voltage
50V DC +/- 1V
DC Output (Average)
60 A
DC Output (Peak)
100 A
Output Power (Maximum)
5 kW
Average Power at 50% load
3 kW
Table 3 DC Power Supply Specification
2.4 Fixing locations
Make sure the correct orientation of the RF laser while installing. And the laser output is not allowed
upwards. If it is mounted vertically in this orientation, the optical surface inside the optical assembly tends
to accumulate dust, which will shorten the life of the optical assembly, especially in dusty environment.
Installation drawing:
浙江热刺激光技术有限公司
Zhejiang Reci Laser Technology Co., Ltd.
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2.5 Technical Information
The technical information for the output beam is shown in the table below.
M² (K)
<1.2 (>0.833)
Beam diameter
8mm ± 0.5mm, at laser output optic
Beam Divergence
<2mrad, full angle far field
Beam Ellipticity
<1.2:1
Pointing Stability
<0.25mrad (Half angle)
Polarsation
Linear parallel to base
Table 4 Output Beam Specification
Note: In order to protect the laser, please do not cut high reflection material, such as mirror metal.
2.6 Environmental Specification
Ambient working temp
3 - 42 °C
Storage temperature
-10 - +70 °C
Humidity (Non-condensing)
10 - 85% relative humidity
Table 5 Environmental Specification
2.7 Coolant Specification
2.7.1 The specification for the coolant
(1) R300 Laser requires a liquid coolant source to operate correctly. The specification for the coolant is as
follows.
Coolant flow rate (Minimum)
12 L/min
Coolant flow rate (Recommended)
16 L/min
Coolant Pressure(max)
4.0 bar
Refrigeration Capacity requirement
>3.2 kW
Connections
14mm outer diameter tube
Coolant Temperature
25 - 27 °C
Table 6 The coolant specification
Note: Optimum at 20°C- Increased temperature affects the power of the laser and shortens its life.
浙江热刺激光技术有限公司
Zhejiang Reci Laser Technology Co., Ltd.
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(2) Water Cooling Pipe Installation Diagram
Figure 2 Water Cooling Installation
(3) Water cooling Circuits Precautions
Please be noted as below.
l The cooling circuit material must be selected to avoid corrosion.
l In order to avoid blockage caused by oxidation, the cooling circuit are not recommended to be made of
aluminum, zinc, mild steel or cast iron.
l The cooling circuit are recommended to be made of stainless steel, copper, copper alloy and opaque
plastic pipe, etc.
l It's better to recommend an opaque pipeline system to avoid bacteria or moss in the pipeline.
l The temperature of cooling liquid must be above dew point to avoid condensate on the inner assembly.
The high purity nitrogen is needed to protect the laser system before cooling liquid.
l Before shipment or storage, drain off the contaminated cooling liquid.
2.7.2 Cooling Water Specification
To endure trouble-free operation of the laser and to prevent corrosion in the cooling circuit, the following
requirements must be complied with:
(1) Quality of the cooling water
Use only de-mineralized, de-ionized or distilled water with an anti-corrosion addictive. Ensure that the
following limits on the water quality are met:
Conductivity
< 1000 μS/cm
Total Hardness
< 10 ppm
pH value of the water
7 – 8.5
Bacterial Level
<1000 cfu/ml
Table 7 Water Quality Requirements
浙江热刺激光技术有限公司
Zhejiang Reci Laser Technology Co., Ltd.
- 7 -
The pH value, conductivity and dissolved levels can be measured with a portable meters and the bacteria
level can be checked with a test kit – For more information, please contact the local Reci Sales and Service
Office.
(2) Suspended Particles
To remove particulate contamination, a filter with a pore size of 100um must be used. The filter should be
located as close as possible and in line with the cooling water inlet of the laser head and should be regularly
checked for blockage and cleaned or replaced when necessary. This is particularly important after bacterial
growth has been detected and treatment applied.
(3) Corrosion and Germ Formation Inhibitors
The corrosion and germ formation inhibitors depend on the total of the cooling water circuit to be used.
(4) Contaminated Cooling Water
If the cooling water is contaminated with bacteria or has been treated with other chemicals, it will be
necessary to clean the cooling circuit.
(5) Frost Protection
If the cooling system or chiller which supplies the cooling for the laser system is located in the area where
the temperature may be below 0°C, then the cooling water circuit must be equipped with a winter proof
heating tank to prevent the cooling water temperature which drops below 15°C.
2.8 Nitrogen Specification
The inner laser system must require high purity nitrogen for two purposes as below,
(1) To prevent the ingress of particles and moisture from contaminating the optical system and circuit board.
(2) To prevent the ingress of particles and moisture from dewing of the optical system and circuit board.
Nitrogen Purity Specification
Pressure
1.5-3 psi (0.1-0.2 bar)
Nitrogen Purity Grade
≥ 4.6 (Above 99.996% Purity)
Table 8 Nitrogen Purity Specification
Nitrogen Installation Instruction
浙江热刺激光技术有限公司
Zhejiang Reci Laser Technology Co., Ltd.
- 8 -
Figure 3 Nitrogen Input
Note
(1) Please input nitrogen around 3 minutes to fill the inside before turning on the laser
(2) To ensure the nitrogen at a positive pressure during laser normal operation.
Chapter 3 The Installation and Options
3.1 Installation
3.3.1 Connecting the DC Supply Cables
Figure 4 DC Supply Connection
(1) Please connect the positive pole of the DC power supply to the respective positive pole of the laser as
shown in the figure, and connect the negative pole of the DC power supply to the negative of the laser.
(2) Extremely, the DC power supply should be on and checking with the multimeter to distinguish between
the positive and negative poles of the power supply before installation.
(3) Generally, the red cable means the positive, and the black cable means the negative.
Note
(1) Please note the orientation of cable before installing and refer to the below figure to avoid short circuit.
Figure 5 Correct cable installation diagram Figure 6 Wrong cable installation diagram
(2) When connecting the DC power supply cable to the laser’s positive filtering connector, please note that
the inner nut can be tightened by hand to protect the internal components. Then use a wrench to clamp
浙江热刺激光技术有限公司
Zhejiang Reci Laser Technology Co., Ltd.
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the inner nut during tightening outer nut to avoid the rotation. And use two wrenches to prevent
damaging the connector shown below.
Figure 7 Correct installation diagram Figure 8 Wrong installation diagram
3.1.2 Installing DB15 and DB9
Installing DB15 and DB9 (Only for Communication), please refer to pin definition in next Chapter.
3.1.3 The Usage Time
When DC power supply turning on, the laser will be start with a short beep normally. The usage time will be
displayed 10 seconds later after startup. If there is a problem, an alternate alarm will occur and the alarm
code will be displayed. Please refer to FAQ in Operations chapter.
3.1.4 Self-testing
It will take 20 seconds for self-testing, then the interface will change from the usage time to parameters
display. (Note that low power laser will be emitted during self-testing.) The normal standby state will be
ready if no alarm. The parameters will be scrolling down the screen as below.
1.xxxx
Condensation parameter 1
2.xxxx
Condensation parameter 2
3.xxxx
Coolant plate temperature
4.xxxx
DC voltage
5.xxxx
Preionization value
6.xxx
Humidity
p.xxx
Duty Cycle
f.xxx
Frequency
Table 9 The Self-testing
3.1.5 The Enable Signal
After the standby, the laser will be ready. PWM signal must be inputted firstly with 10ms stop. Then Enable
signal will make the laser working normally.
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