Laser Quantum Ventus with smd12 User manual

ventus with smd12
ventus
Operating Manual
R-0162 Ver. 2.0

Page 2 Page 3
ventus
Operating Manual
Contents
ventus
Operating Manual
Declaration of Conformity
Laser Quantum declares that the product:
Name Description
ventus 473 nm, 532 nm, 561 nm, 660 nm or 671 nm DPSS laser
has been manufactured in conformity with the following standards:
• IEC/BS EN60825-1:2014 Safety of laser products - Part 1: Equipment classication
and requirements
• 61000-6-3:2007 Electromagnetic compatibility (EMC). Generic standards. Emission
standard for residential, commercial and light-industrial environment
• BS EN 61010-1:2010 Safety requirements for electrical equipment for measurement
and laboratory use
• RoHS: 2011/65/EU Restriction on the use of certain hazardous substances in electrical
and electronic equipment
Caution
Failure to read this manual carefully before operating the laser may result
in catastrophic damage to the system which may void the warranty
Declaration of Conformity 3
Section 1: Introduction 4
Section 1.1: Operational Requirement – Electrical Specication 4
Section 1.2: Operational Requirement – Environment 4
Section 1.3: Storage Requirement – Environment 4
Section 2: Laser Safety 5
Section 3: System Specications 6
Section 3.1: Parts List 6
Section 3.2: Weights and Dimensions 7
Section 4: PSU Conguration Drawings 8
Section 5: Laser Operation 9
Section 5.1: Switching the Laser ‘on’ 9
Section 5.2: Switching the Laser ‘off’ 9
Section 5.3: Power Mode 9
Section 5.4.1: Control Port - Functionality - Break Out Cable NOT Used 10
Section 5.4.1: Control Port - Functionality - Break Out Cable Used 11
Section 5.5: RS232 Port - Functionality 12
Section 5.6: RS232 Port – Serial Commands 13
Section 5.7: RemoteApp™ 14
Section 5.8: Re-calibrating the Laser Power 14
Section 6: Cooling Requirements and Power Consumption 15
Section 6.1: Cooling Requirements 15
Section 6.2: Power Consumption 16
Section 7: Laser Maintenance 17
Section 8: Liability 17
Section 9: Warranty 18
Section 10: Support 18
Warning: Use of controls or procedures or performance of procedures
other than those specified herein may result in hazardous radiation
exposure
Turn page >< Turn page

Page 4 Page 5
ventus
Operating Manual
ventus
Operating Manual
Section 1: Introduction
The ventus is a Diode-Pumped Solid-State (DPSS) laser system emitting light in the visible
region of the spectrum at 473 nm, 532 nm, 561 nm, 660 nm or 671 nm, depending on the variant
ordered. It is a Class 3b or Class 4 laser product. This manual describes the set-up requirements
and operational procedures to ensure safe operation of the system.
Warning: Use of controls or procedures or performance of procedures
other than those specified herein may result in hazardous radiation
exposure
Section 2: Laser Safety
The ventus is a Class 3b or Class 4 laser product. A warning label appears on the laser head and
an example of both of these is reproduced here:
Section 1.1: Operational Requirement – Electrical Specication
The smd12 Power Supply Unit (PSU) requires
Input Voltage 12 V DC Acceptable range 11 V to 14 V (Ripple 1% peak to peak)
Input Current 8 A Minimum of 8 A must be available from the external source
Note the centre pin of the input connector is positive and the external DC source output shall not
be referenced to mains ground.
Section 1.2: Operational Requirement – Environment
Optimal Operating Temperature Range – Laser Head 22ºC to 37ºC
Maximum Operating Temperature – Laser Head 40ºC
Maximum Operating Temperature – PSU 60ºC
For optimal performance, the laser head should be mounted onto an appropriate heatsink in
a stable environmental temperature. The heatsink requirements will depend on the ambient
temperature of the operating environment and the operating power of the laser (section 6).
In the event of the laser head or PSU over-heating, a controlled shut down of the system will occur
(Section 6.1). The system can only be restarted once it has been cooled to a safe temperature.
Section 1.3: Storage Requirement – Environment
Temperature Range 5ºC to 45ºC
Humidity Non-Condensing
A further label also appears adjacent to the laser aperture:
When operating the laser, those in the environment must adhere to the following instructions to
avoid eye damage and prevent the risk of re:
• Laser safety goggles must be worn at all times when the laser is in operation
• Always ensure the beam is safely collected in a suitable beam stop or that the laser is
disabled when not in use
For a full description of laser safety procedures, the user is referred to Declaration of Conformity
standards plus:
• FDA Code of Federal Regulations (CFR) Title 21 Subchapter J section 1040.10 Laser products
• American National Standards for Safe Use of Lasers – ANSI Z136
Turn page >< Turn page

Page 6 Page 7
ventus
Operating Manual
ventus
Operating Manual
Section 3: System Specications
A full list of parts supplied with the laser systems appears in Section 3.1.
The dimensions (mm) and weights (kg) are shown in Section 3.2. These measurements should
be referred to whilst integrating the system.
Section 3.1: Parts List
The ventus laser system comes complete with:
• ventus laser head
• smd12 Power Supply Unit (PSU)
• Umbilical Cable – to connect the laser head and PSU
Depending on the purchase specication, some or all of the following items may also be included:
• External Power Supply Source (Mains AC to 12V DC Desktop Module)
• IEC Mains Lead
• Interlock Dongle – to enable the laser system (Yellow spot on casing with Yellow LED)
• Breakout Cable – to enable RS232 connection
• RemoteApp™ software suite & Operating Manual – delivered on a USB ash drive
** Note: If a Blue/Red spot Interlock Dongle has been supplied the output Power of the laser
may be limited by the setting of the Potentiometer which is part of the dongle.
Section 3.2: Weights and Dimensions
ventus laser head Weight: 0.75 kg
smd12 Weight: 0.4 kg
ventus head dimensions
Turn page >< Turn page

Page 8 Page 9
ventus
Operating Manual
ventus
Operating Manual
Section 4: PSU Conguration Drawings
Section 5: Laser Operation
Section 5.1: Switching the Laser ‘on’
1. Ensure the smd12 is not powered (i.e. 12 V DC source is switched off).
2. Connect the Umbilical Cable to the port marked ‘Umbilical’ on the smd12 before connecting
the other end to the laser head. Tighten the locking posts on the screws at both ends so
they are nger tight.
3. Switch on the 12 V DC source, this should illuminate the smd12 green power LED. At this
stage the thermal control circuitry is activated but no laser emission should occur.
4. The analogue Control port (see Fig 4.1) is multi-functional as it has connections for Interlock,
Enable Switch and Laser Power Control/Modulation. The Interlock must be closed to allow
the laser to operate and this can be achieved using the supplied Green spot Interlock
Dongle.
5. Depending on the start up conditions set for the system the laser may now start to emit
laser light
Caution
Care must be taken to prevent direct exposure to the laser beam before the system is enabled
Turn page >< Turn page
Fig 4.1
Fig 4.2
LED Functions
1 Red Laser Enabled
2 Red Power Fail
3 Red Over Temp Head
4 Red Over Temp PSU
5 Green Power LED
1 2 3 4 5
With RS232 connection Without RS232 connection
Attention:The laser contains components which can be damaged if exposed to
an electro-static discharge. Ensure the connector pins on the back of the laser
head are never exposed to an electro-static discharge.
Section 5.2: Switching the Laser ‘off’
The laser is switched off by: Removing the Interlock Dongle; Sending the serial command ‘OFF’.
Section 5.3: Front Panel Controls
The laser operates in Power mode. The laser power is constant and a feedback control loop
maintains the power at he level requested by the operator via the RS232 port.

Page 10 Page 11
ventus
Operating Manual
ventus
Operating Manual
Turn page >< Turn page
Section 5.4.1: Control Port – Functionality – Break Out Cable NOT used
The smd12 Control Port is multi-functional and allows for both interlock and RS232 communication.
Due to this combined function the RS232 pin out is NON-STANDARD. The smd12 can be operated
directly via the Control port (see Fig 4.1 & 4.2) by applying 0 to 5 V in accordance with the
diagrams in this section.
The remote Interlock, Enable and Enable LED can be wired in accordance with the diagrams
below [Fig 5.1 & Fig 5.2], to be used as part of a laboratory interlock safety circuit. If either
Interlock is broken the system will shut down.
Connections to the control port shall be “potential free” i.e. isolated from mains voltage by a
barrier rated at 3KV (e.g. Double Insulation, Etc).
The combined electrical resistance of the “Enable Switch”, “Interlock” and associated wiring shall
be less than 5 ohms.
If a solid-state device such as on opto-isolator is used as the switching element(s), the total
combined voltage drop must not exceed 500mV.
The current through the “Interlock” and “Enable Switch” circuitry is less than 100mA. The LED
current source is 5V via a 150R resistor.
The PSU has its own 5 V source (pin 1) which must be shorted to pin 4 to allow full Power Mode
operation [Fig 5.3].
Section 5.4.2: Control Port – Functionality – Break Out Cable used
If a Break Out Cable has been supplied then the PSU Control Port is converted into two ports
marked ‘Interlock’ and ‘RS232’ (see Fig 4.1 & Fig 4.2). The Break Out Cable ‘Interlock’ connec-
tor pinout is shown below and the RS232 settings can be found in Section 5.5.
The remote Interlock, Enable and Enable LED can be wired in accordance with the diagrams
below [Fig 5.4 & Fig 5.5], to be used as part of a laboratory interlock safety circuit. If either
Interlock is broken the system will shut down.
Connections to the control port shall be “potential free” i.e. isolated from mains voltage by a
barrier rated at 3KV (e.g. Double Insulation, Etc).
The combined electrical resistance of the “Enable Switch”, “Interlock” and associated wiring shall
be less than 5 ohms.
If a solid-state device such as on opto-isolator is used as the switching element(s), the total
combined voltage drop must not exceed 500mV.
The current through the “Interlock” and “Enable Switch” circuitry is less than 100mA. The LED
current source is 5V via a 150R resistor.
5 4 3 2 1
9 8 7 6
9-way Function Table
and Pin-Out Diagram
Laser Enable
LED
Interlock:
Open contact
disables laser
Pin 6
Pin 5
Pin 7
Enable Switch:
Normally Open
(Push to make)
Pin 3
Pin 8
The PSU has its own 5 V source (pin 1) which must be shorted to pin 4 to allow full Power Mode
operation. [Fig 5.6]
[Fig 5.4] [Fig 5.5] [Fig 5.6]
5 4 3 2 1
9 8 7 6
9-way Function Table
and Pin-Out Diagram
Laser Enable
LED
Interlock:
Open contact
disables laser
Pin 6
Pin 5
Pin 7
Enable Switch:
Normally Open
(Push to make)
Pin 3
Pin 8
[Fig 5.3][Fig 5.1] [Fig 5.2]
Pin Function
1 +5 V rail (output)
2 2 TXD: RS232 - Transmit
3 Enable switch (connection 1)
4 +5 V (input)
5 Interlock (connection 2), Laser Enabled LED anode & Ground (GND)
6 Interlock (connection 1)
7 Laser Enabled LED cathode
8 Enable switch (connection 2)
9 Ground (GND)
Pin Function
1 +5 V rail (output)
2 2 Ground (GND)
3 Enable switch (connection 1)
4 +5 V (input)
5 Interlock (connection 2), Laser Enabled LED anode & Ground (GND)
6 Interlock (connection 1)
7 Laser Enabled LED cathode
8 Enable switch (connection 2)
9 Ground (GND)

Page 12 Page 13
ventus
Operating Manual
ventus
Operating Manual
Section 5.6: RS232 Port – Serial Commands
Serial Command Function
OFF Disables the laser, regardless of the interlock status
ON Enables the laser subject to Interlock and Enable Switch status
POWER=###
This sets the output power of the laser. For example, to set a power
of 2800 mW, send the string POWER=2800, followed by striking the
RETURN key
POWER? Returns the power of the laser (read from the internal photodiode)
STEN=YES/NO Enable (YES) or disables (NO) laser as default at start-up. This serial
command must be followed by WRITE
STPOW=### ### is the optical power in mW. Sets the default start-up power. This
serial command must be followed by WRITE
ACTP=### ### is in mW. Recalibrates the APC mode (See section 5.8)
WRITE Stores APC calibration, STEN and STPOW in memory
LASTEMP? Returns the temperature of the laser head in degrees centigrade
PSUTEMP? Returns the temperature of the PSU in degrees centigrade
STATUS? Returns the status of the Interlock
TIMERS?
Returns the timers of the laser and PSU:
Returns the timers of the laser and PSU:
PSU Time=#######.# Total time the system has been powered
Laser Enabled Time=#######.# Total time the diodes have been powered
Laser Operation Time=#######.# Total time the diodes have been powered >1A
Turn page >< Turn page
Section 5.5: RS232 Port - Functionality
Control of the laser can be achieved via the RS232 port using a terminal emulator such as
HyperTerminal or PuTTY. This allows the operator to:
• Turn the laser on/off
• Control the laser power
• Query the processor for information such as laser head/PSU temperature
• Check the laser status
It is necessary to have the Interlock and Enable switches closed via the Control port in order to
enable the laser, prior to controlling the laser through the RS232 port. Pins 1 and 4 of the Control
port must be shorted together to allow maximum current to be set by the RS232 commands.
Using the Control port without the Break Out Cable (see Fig 4.2)
Pin Function
2 TXD: RS232 - Transmit
3 RXD: RS232 - Receive
5 GND - Ground
Port settings are:
Baud Rate: 9,600
Parity: None
Stop Bit: 1
Hand Shaking: None
The operator must wait for a response from the PSU before sending the next command. A
response is any text string (including null) followed by a Carriage Return, Line Feed.
Pin Function
2 TXD: RS232 - Transmit
3 RXD: RS232 - Receive
5 GND - Ground
Using the Control port without the Break Out Cable (see Fig 4.2)

Page 14 Page 15
ventus
Operating Manual
ventus
Operating Manual
Section 5.7: RemoteApp™
Using Laser Quantum’s unique RemoteAppTM software suite the laser can be controlled via the
RS232 port. The application is supplied on a USB Flash Drive and should install automatically.
Alternatively it can be downloaded from www.laserquantum.com. Follow the on-screen prompts
to install the software onto the computer. RemoteAppTM includes a comprehensive instruction
manual which can be accessed via the ‘Help’ and ‘Contents’ tabs.
The RemoteAppTM can also be used if a remote connection is required by our Service & Support
Centre and is a powerful tool if performance optimisation is required.
Section 5.8: Re-calibrating the Laser Power
The laser can be recalibrated at any time during its use to ensure the APC mode is in good
agreement with any external power meter device. Recalibration is a simple process that takes
place via the RS232 port. The procedure for recalibration requires the RS232 port to be congured
for use with a terminal emulator (section 5.5). The following procedure must be followed:
1. Select an intermediate power that the laser is capable of reaching. Set the laser to this power
by typing the command POWER=###. “###” represents this intermediate or characteristic
operating power level.
2. After a period of 5 minutes, measure the actual power using a calibrated, external power meter
3. Type the command ACTP= [external power meter reading in mW]
4. Conrm that the laser has adjusted its power such that the external power meter now reads
### mW within a few mW
5. If necessary, repeat steps 3 and 4 until the calibration agrees
6. Once accepted, type the command WRITE to store the new calibration
Note: The power is calibrated during manufacture and may be subject to an error of up to 5%
as a result of power meter variation.
Section 6: Cooling Requirements and Power Consumption
Section 6.1: Cooling Requirements
The laser has a characteristic warm-up period before it reaches specication; this time depends
partly on the heat sink to which it is attached. However, the typical warm-up time is 10 minutes
from switch on.
In order for the laser to perform to specication, it must be adequately heat-sinked. Operating
the laser on an inadequate heat-sink will adversely affect its stability and may result in thermal
shutdown of the laser head or reduction in beam power. Operating the laser on an optical bench
will produce optimum performance. In normal laboratory conditions, a heat-sink with dimensions
400 x 400 x 10 mm should be suitable for the laser to operate in accordance with its specications.
Depending upon environmental conditions and power of the laser, additional cooling aid might
be required (e.g. TEC, forced air cooling, water cooling). For further information on heat-sinking
your laser system, please consult your sales representative who may be able to provide a heat-
sink solution.
ventus laser head
Once the maximum operational temperature for the laser head (see Section 1.2) has been reached,
one of two things will occur:
1) The current to the diode will immediately be switched off and the laser system will need to be
restarted once the temperature has been restored to normal
2) If de-rating is enabled the current will gradually be reduced to zero in order to try to allow
the laser head temperature to stabilise. If the current does reach zero the system will need to be
restarted. The effects of de-rating are shown in the table below:
Current to Laser Head OVERTEMP LED
Begins to de-rate Flashes
Reduced to zero On
smd12 PSU
A similar arrangement occurs for the PSU once the maximum operating temperature (see Section
1.2) has been reached. Note: The indicator LED in this instance is marked ‘PSU OVERTEMP LED’.
Turn page >< Turn page

Page 16 Page 17
ventus
Operating Manual
ventus
Operating Manual
Section 6.2: Power Consumption
The power consumption shown is that which is drawn at the plug from the mains supply in both
the Maximum and Typical states. The Maximum current will usually be drawn at start up and the
Typical current is when all temperatures are stabilised and the system is operating at the specied
power. Peak values are shown in all cases and efciencies will vary between systems of different
wavelengths.
Maximum at 240V supply – using the supplied External Power Supply Source: 120W
At the 12V input the smd12 can draw maximum of 8.5A
Laser System:
Example: 473 nm system, operang at 175 mW will consume 60 W maximum and 45 W typical
The power dissipation of the laser head is no more than 40% of the total power consumption.
The values shown are system power consumption.
Section 7: Laser Maintenance
If the ventus is operated in a smoky or dirty environment, occasional cleaning of the laser
window may be necessary. To perform this procedure, the laser must be turned off and, using
optical cloth dampened with research grade methanol, the laser window must be wiped gently.
• Always follow the instructions given in this Operating Manual
• Never touch the connector on the laser head with anything other than the Umbilical cable
provided and always follow the connection instructions in this Operating Manual
• Do not open the laser head or PSU; this will immediately invalidate the warranty
• Do not subject the laser head to mechanical shock; if severe this can cause mis-alignment
of the laser cavity
• Do not allow the output window of the laser to be touched as this may damage the
precision optical coatings used. Avoid very dirty atmospheres where dirt may settle on the
window
• Do not operate or store this laser system in very humid or damp environments
Section 8: Liability
Laser Quantum accepts no liability for damage to persons or property caused by incorrect or unsafe
use of any of its products; this is the sole responsibility of the user. Proper safety regulations for
the use of these products must be observed at all times.
Turn page >< Turn page

Page 18
ventus
Operating Manual
Section 9: Warranty
Laser Quantum provides a return to base warranty across all our product ranges (see Support
Section 10). The warranty period for your laser can be found on the invoice provided with the
system. Any time period referred to by the sale is based on psu/controller time, NOT lasing time.
Warranty cover for the laser is subject to proper use, care and protection from mistreatment.
Examples of mistreatment include, but are not limited to any of the following:
• Any deviation from the instructions laid out in the Operating Manual
• Opening the product or breaking the warranty seals
• Operation in any hostile environment as outlined in the Operating Manual
• Any damage due to operation in unclean environments
• Any substantial mechanical shock
• Any damage through static discharge (this will not occur under normal operation)
The denition of mistreatment and its applicability to the warranty is at the reasonable discretion
of Laser Quantum.
Laser Quantum’s obligation under this warranty is limited to the replacement or repair of the
product which having been returned to the factory is found to be defective, and where the
defect was not caused by factors external to the product. Any replacement part/product is under
warranty for the remainder of the initial product warranty period.
Section 10: Support
Should the laser fall below acceptable specication performance, please contact our service and
support team on [phone] or email: [email protected]. They will provide
initial assistance to rectify the problem remotely. If this is not possible, they will provide you with
a Return Material Authorisation (RMA) Form and instruction on how to package and return the
laser safely to us for assessment.
PLEASE DO NOT RETURN THE LASER
WITHOUT PRIOR CONTACT WITH AND AGREEMENT FROM OUR SUPPORT TEAM
E: [e-mail]
W: www.laserquantum.com
Laser Quantum UK
Emery Court, Vale Road
Stockport, Cheshire
SK4 3GL
UK
t: [phone]
Laser Quantum USA
3083 Lawrence Expressway
Santa Clara
CA 95051
USA
t: [phone]
Laser Quantum Germany
Max-Stromeyer-Str. 116
78467 Konstanz
Germany
t: [phone]
www.laserquantum.com
[email protected]
< Turn page