First version
Rev 1.00
22 Sep 2016
Helios User Manual
6
== Subject to change. Check our website for latest version spec:
www.ophiropt.com/laser-measurement
Short Exposure High Power Sensors with Industrial Communications Protocol
Helios
– P/N 7Z02768 / 7Z02789 (rev16 8-12-19)
50W
to 12000W
Features
•
No water cooling, up to 12000W
•
Profinet / EtherNet/IP and RS232 interfaces
•
Remote actuated protective cover
The Helios measures high power industrial lasers of up to 12kW by measuring the energy of a short time exposure to this power. The laser is set to a pulse of from
0.3 to several seconds. The Helios measures the energy and exposure time of this sample of the power, and from this calculates the power. By keeping the pulse
energy under 5kJ, there is no need for water cooling and the sensor can be kept to a compact size. The sensor is housed in a dust-resistant industrial body to keep
the Helios in clean working order even under harsh factory conditions. Its protective cover can be opened and closed remotely to protect the sensor when not in
use. Its protective window is antireflection coated to reduce back reflection of the high power beam. The Helios has two versions of communications: Profinet and
RS232 or EtherNet/IP and RS232. The Helios comes with a simple PC application for easier integration into the customer's system. It is equipped with two power
and two RJ45 ports for easy integration into existing line or ring topologies as well as an RS232 connection.
Model
Use
Helios-Profinet / Helios-EtherNet/IP
High power industrial laser measurement
Absorber Type
LP2, absorption ~94%
Power Range
50W – 12kW
Energy Range
100J – 5kJ
Exposure Time (see table below)
0.3 - 4s
(a)
Wavelength
860 – 1100nm
(b)
Aperture
Ø50mm
Max Beam Diameter
35mm
Maximum Energy Density
4kJ/cm²
Accuracy
±3%
(c)
Linearity with Energy
±1.5%
(d)
Reproducibility
±1%
Response Time
3s
Waiting Time for Next Measurement
12s
Maximum Exposure Before Cooling Down is
Necessary
Maximum operating temperature of 60degC will be reached after exposure to 30kJ (e.g. 6 shots at 5000W, 1s).
Cooling down time before another 5kJ shot, 3min.
Power Supply
24 VDC ±5%, max 5 A (for daisy-chaining)
Power Consumption
24 VDC ±5%, max 2 A
Communication
Profinet, RS232 / EtherNet/IP, RS232
Dimensions
(L x W x H) 200 x 100 x 84 mm (closed); 200 x 123 x 144
(open)
Position of Mounting Holes
6.6 mm holes spaced at 90x190 mm
Weight
2.5kg
Operating Temperature
10-60ºC
Humidity
10-80%
Recommended exposure times and 1/e²
Gaussian beam diameters
Laser Power W
Recommended
Exposure s
Min 1/e² beam
dia
.
mm
Laser Power W
Recommended
Exposure s
Min 1/e² beam
dia. mm
50
100
2
2
9
9
2000
5000
1
1
12
18
500
2
9
10000
0.3
22
1000
1
9
12000
0.3
25
Connections
2x RJ45 Industrial Ethernet connectors, 2x Han PushPull Power Metal 24V power connection
(e)
,
1x DB9 RS232 connection, 7x indicator LEDs
Cover
Motor driven cover opens sideways
Accessories Supplied with Helios
1. Power Supply Cable (P/N 7Z10458A), 2. Profinet/EtherNet/IP Plug RJ45 IP67 5m Cable (P/N 7E01298/7E01299)
Additional Accessories
1. D9F to D9M Shielded 10m RS232 Cable (P/N 7E01209), 2. Helios Window Replacement Kit (P/N 7Z08332)
Compliance
CE, China RoHS
Part number
7Z02768 / 7Z02789
Notes: (a) Repetitive pulses can also be measured as long as the total exposure time is within this range.
(b) Lasers down to 780nm can be measured with an additional 2% error.
(c) The power is calculated by measuring the energy and exposure time. The laser pulse is assumed to be rectangular for this calculation.
(d) For pulse widths in the range 0.3 – 4s.
(e) External power supply should be connected to the right-hand power jack. The left power connector can be used to connect power to another device
(in a ring or line topology). If left unconnected, a plug is provided to keep the connector clean.