Very High Power Water Cooled Thermal Sensors
100W to 120kW
Features
• Highest powers
• Water cooled
• Up to 120kW
• Ø200mm aperture
Description:
The 30K-W-BB-74 is a water cooled thermal power/energy laser measurement sensor for high powers with a 74mm aperture. It can measure power from 100W to 30,000W. It has a deflecting cone and annular absorber that withstands high power densities to 10kW/cm². It covers the spectral range from 0.8 - 2 and 10.6µm. The sensor comes with a standard 10 meter cable for connecting to a meter or PC interface.
Model
30K-W-BB-74
120K-W
Use
High power up to 30kW
Measuring Highest powers to 120kW
Measurement Type
Beam deflector + broadband absorber
Water cooled beam absorber chamber with deflecting cone.
Separate power measuring unit monitoring input and output
cooling water flow and temperature
Spectral Range µm
0.8 - 2, 10.6
0.9 –1.1 (a)
Aperture mm
Ø74mm
Ø200
Power Range for Calibrated Reading
100W – 30kW
10kW – 120kW
Power Noise Level
1W
±20W with stable water temperature
Backscattered Power
~4.3% without Scatter Shield, ~1.3% with
Scatter Shield (b, c)
Less than 1%
Maximum Average Power Density
kW/cm2
10kW/cm² anywhere in the beam (c)
Designed for near Gaussian beam. The 1/e2 beam diameter
should have a divergence of 0 to 6 degrees and should be
Ø100mm in diameter at the reflecting cone (see sketch above
where the beam may also be collimated and not divergent as
long as beam diameter requirement is met).
Beam Centering Requirements IMPROPERLY CENTERED BEAM CAN CAUSE DAMAGE TO SENSOR
For circular beam centered within ¼ of beam diameter. Maximum tilt angle ±5 degrees.
For rectangular beam please consult Ophir representative.
Beam to be centered on deflecting cone ±5mm and parallel
±2degrees
Response Time 0-95% typ
7s
40s at flow rate 60 liter/min and 60s at flow rate 20 liter/min
Power Accuracy +/-%
5 (a)
5 (a)
Linearity with Power +/-%
2
2
Cooling Requirements
25 liter/min at full power, proportionally less at lower power. Min flow rate 6 liter/min. Water temperature range 15-30ºC. Water temperature rate of change
<1ºC/min
Water flow rate, 60 liters/min at max power. Inlet temperature
15-20degC. Inlet water temperature rate of change
<0.3degC/min at full power, proportionately less at lower power (b)
Water Pressure Drop across Beam Absorber
Pressure drop across sensor ~0.2MPa. Pressure drop across 8 meters of ½” tubing with 9.5mm ID is ~0.3MPa
0.4MPa at 60 liter/min flow rate
Water Connections
Quick connector for ½” OD nylon tubing (c)
Up to 4 meters in each direction of 1” OD 13/16” ID flexible
nylon tubing
Outputs
10 meter cable terminated in
DB15 smart connector
1. Cable terminated in DB9 plug with RS232 ASCII output
reading power, flow rate and temperature on PC (using
WaterFlowMeter PC App). Cable lengths 10 meters (recommended for access to full data).
2. Cable terminated in DB15 Ophir smart plug reading power.
Optional Scatter Shield Accessory (c)
30K-W Scatter Shield (P/N 7Z08293)
NA
Dimensions
See drawing below
See drawing below
Weight kg
19
Beam Absorber 50kg. Power measuring unit 10kg
Compliance
CE, China RoHS
CE, China RoHS
Version
V2
Part number
7Z02757
7Z02691
Notes: (a)
Calibrated at 1.07µm. For other
wavelengths in the range
0.8 – 2µm add up to ± 2% to the
calibration error
Calibrated for 1.07 µm
Notes: (b)
When scatter shield is installed, use the 107S laser setting to compensate for the slightly higher reading. When not installed, use the 107 setting
Minimum flow rate should not be below 20 liter/min.
It is recommended that the user install
a safety interlock flow switch on the return water line
(after beam dump) to immediately shut
down the laser if flow rate drops
Notes: (c)
For further information and options see Accessories for High Power Sensors
商品属性 [波长范围] 0.9 –1.1 um [功率范围] 10kW -120kW