Lasermet LS-100-12 User manual

LS-100-12 Laser Beam Shutter Instruction Manual
CEB00XXX-53-000 Issue 4 19 January 2021
LASERMET
LS-100-12 SHUTTER
INSTRUCTION MANUAL
GRAVITY FED, FAIL-SAFE LASER BEAM SHUTTER
FOR SAFETY APPLICATIONS

LS-100-12 Laser Beam Shutter Instruction Manual
CEB00XXX-53-000 Page 2 of 9 Issue 4 19 January 2021
LASERMET LS-100-12
Instruction Manual
Contents
1 Declaration of Conformity .................................................................................................. 3
2 Safety Warnings .................................................................................................................. 4
3 Concept ............................................................................................................................... 5
4 Installation .......................................................................................................................... 5
5 Wiring ................................................................................................................................. 5
6 Operation ............................................................................................................................ 6
7 Specifications ...................................................................................................................... 7
8 Warranty ............................................................................................................................. 8
9 Contact Details .................................................................................................................... 9

LS-100-12 Laser Beam Shutter Instruction Manual
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1 Declaration of Conformity
LASERMET LIMITED
LASER BEAM SHUTTER
Part no. LS-100-12
DECLARATION OF CONFORMITY
This is to certify that the Laser Beam Shutter designated by Lasermet Part Number LS-
100-12 has been tested in accordance with the following directives and standards and
found to comply.
Lasermet certifies that this product complies with the basic requirements for health
and safety as provided by the following directives and standards:
Directives: Machinery Directive 2006/42/EC
Standards: EN 60825-4:2006 +A1:2008 +A2:2011
Safety of Laser Products, Part 4 – Laser Guards
The relevant Protective Exposure Limits are:
Irradiated Area
PEL (T2) 100s
4 mm2
5 MW/m2
1000 mm2
200 kW/m2
Supplier:
Lasermet Limited
Lasermet House
137 Hankinson Road
Bournemouth
BH9 1HR
Dorset
United Kingdom
Country of Origin: England
Date: 10 June 2019

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2 Safety Warnings
This device is intended to be used as part of a safety system which may be used to protect personnel
and equipment from possible injury, damage, or loss.
As such it must be installed and wired according to these instructions and tested by suitably qualified
persons. No attempt may be made to tamper with the parts, open them, or use them outside of the
parameters contained herein.
The units are only designed to be fixed to surfaces using their inbuilt fixing holes. They must not
come into contact with each other or any other moving part when in use. The parts should never be
subject to impact or mechanical strain.
Safety switches should never be defeated or bypassed. It is imperative that all steps are taken to
ensure that any spare actuators are made unavailable, such that they cannot be used to defeat the
switch or reduce the protection offered by the system in any way.

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3 Concept
The LS-100-12 is a laser beam shutter and beam dump designed specifically for safety applications. It
can, however, also be used for beam control (i.e. turning a laser beam on and off). When used for
safety applications the electrical power to the LS-100-12 must be supplied by an interlocked shutter
supply such as the Lasermet ICS-6. It will then provide fail safe interlocking of your laser beam to
protect persons entering the laser room from the laser beam hazard.
The LS-100-12 is designed as a combined shutter and beam dump and will not reflect the beam back
out of the shutter. Consequently, there is no requirement for an additional beam dump. When used
for safety interlocking the shutter input tube should be butted up against the laser to totally enclose
the beam and ensure that there is no accessible laser beam when the shutter is closed. This beam
shutter is gravity fed and not reliant upon springs, electrical power or any other drives or devices for
return to the safe mode.
Lasermet provides a full range of laser interlock equipment including control systems, interlock
switches, illuminated warning signs, laser shutters, door locks, external power supplies etc. which
can be connected to provide a complete laser interlock system. Full support, design and installation
is available from Lasermet, please contact us for any queries. Contact details are given at the end of
this manual.
4 Installation
Mount the LS-100-12 in front of the laser aperture with the ‘Beam input’ side facing the laser
aperture. For safety interlocking applications, if there is any space between the laser aperture and
the shutter input tube, metal tube must be used to enclose the beam. The shutter must be mounted
vertically with its face perpendicular to the laser beam. There are M6 threads in the base plate for
mounting onto optical posts.
5 Wiring
The Shutter is equipped with a 9-way male ‘D’ connector. The pin connections on the shutter are as
follows:
Pin Function
1 +12 to 24V DC power to shutter
2 0V
3 Remote open input
4 Remote open input
5 ‘Open’ status output
6 ‘Closed’ status output
7 - 9 Optional electrical Interlock option - see below.

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A +12 to +24V DC shutter power supply is required. Connect pin 1 to the +ve side of the supply and
pin 2 to 0 Volts. Note that this supply should be on whenever the laser is operating, as it is required
not only to open the shutter but also to operate an internal cooling fan when the shutter is closed.
The internal fan is activated automatically when the internal beam dump gets above 45 ⁰C.
If controlling the shutter just using its buttons, connect the DC supply + to pins 1 and 4, – to pin 2. If
using remote control with a switched DC supply connect a continuous DC supply + to pin 1, – to pin 2
and a switched DC supply + to pin 4 and – to pin 2.
If using a volt-free contact to control the shutter, connect the DC supply + to pins 1 and 4, - to pin 2.
Wire the volt-free contact between pins 3 and 4. The unit can be factory set such that the remote
control will directly control the shutter. By default, the remote control will directly enable or inhibit
the use of the buttons. The shutters are manufactured with the link in the BC position. The
brightness of the amber LED is set by the manufacturer.
6 Operation
When the power supply to the shutter comes on, the middle yellow LED will light. The green LED will
also light indicating that the shutter is fully closed. Pressing the green button momentarily will open
the shutter. The Orange LED will light indicating that the shutter is fully open, and the beam is
exposed. To manually close the shutter, press the red button. Loss of power to the shutter, such as
when a door interlock switch trips the interlocked power supply, will also cause it to close.
Alternative Switching Configurations for the LS-100-12 Shutter
These are most commonly used when the shutter is situated within an enclosure and the
pushbuttons on top of the shutter case cannot be easily accessed.
Remote Switching
Interrupt the + ve supply line to Pin 1 with a normally closed switch. This will be the remote ‘Close
Shutter’ switch. Wire a normally open switch across Pin’s 3 and 4. This will be the remote ‘Open
Shutter’ switch. The existing pushbuttons will still work as normal. A remote switching unit (part
number: LS-RS) with indication LEDs is available from Lasermet.
Bypass of Open & Close Switches
This is set by the manufacturer.
Status Outputs – pins 5 and 6
When the shutter is open, a DC signal is output on connector pin 5. When the shutter is closed, the
incoming DC voltage is output on connector pin 6 (NB. if operating in the Remote Power Mode, no
signal is output on pin 6 when the shutter is closed since power is removed from the unit). The
maximum load that may be placed on these outputs is 100mA non-inductive. If connecting them to
an inductive load such as a relay coil, a diode should be fitted across the load with the anode to 0V.

LS-100-12 Laser Beam Shutter Instruction Manual
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Optional Interlock - pins 7, 8 and 9
These connections are reserved for an optional internal electrical interlock board (part no: LS-10-IB)
which provides two volt-free contacts indicating the state of the shutter. This option may be
specified at time of ordering.
Indicator Lamps
Green Shutter closed
Yellow Power on
Orange Shutter open - beam exposed
Fan Operation
When the shutter is closed, the laser beam is directed onto a large heat sink which is thermally
coupled to a thermostat. When the heat sink temperature goes above 45 ⁰C and the shutter is
closed, the fan will turn on.
7 Specifications
Supply Voltage 12 – 24VDC
Current Consumption 200mA max.
Status Output Voltage As incoming supply
Status Output Current Rating 100mA max. non-inductive
Optical Specification
Maximum Optical Power 20W ave.
Maximum Beam Diameter 50mm
Maximum Power Density as per DoC
Dimensions are approximate. Values given as ‘typical’ are average values measured across a number
of samples and are not guaranteed. Lasermet reserve the right to alter any specification without
prior notice.
Whilst every care has been made in the provision of this information Lasermet Ltd. or its agents
accept no liability for any errors or omissions. The End User is responsible for the safe use of this
product and Lasermet Ltd. or its agents shall not be liable for any damage or injury caused by the use
or misuse of this product. In the event of defective product liability shall be limited to the value of
the product.

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8 Warranty
Lasermet provide a 12-month warranty for defects in materials and manufacture, from the date of
installation or delivery. Installations completed by Lasermet are covered against defects in
workmanship for 12 months.
Damage or defects caused by other factors are not covered. For example, industrial contamination,
incorrect cleaning, storm damage. Consequential loss is not covered under warranty. Compensation
for indirect or direct loss or damage is expressly excluded. Rectification of the defects or a
replacement does not initiate a new warranty period.
For all deliveries, payments and other legal transactions, English law takes precedence for any
litigation.

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9 Contact Details
Lasermet provide a full range of laser interlock equipment including interlock switches, illuminated
warning signs, laser shutters, entry keypads with built-in fail-safe override timer, door locks, external
power supplies etc. which can be interconnected to provide a complete system. We also supply
equipment and consultancy covering all aspects of laser safety. Full support, design, and installation
is available from Lasermet, please contact us for any queries.
For sales and technical support:
Lasermet Ltd.
Lasermet House,
137 Hankinson Road,
Bournemouth
BH9 1HR
United Kingdom.
Tel: [phone]
Fax: [phone]
Email: [email protected]om
Website: www.lasermet.com
Lasermet Inc.
10N Martingale Road, Suite 400,
Schaumburg, Illinois 60173
United States.
Tel: [phone]
Email: [email protected]
Website: www.lasermet.com