LTB MNL300 Series Device Manual
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LTB MNL300 Series Device Manual

Nitrogen laser
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LTB Lasertechnik Berlin GmbH • Am Studio 2c • D-12489 Berlin
Tel.: +49 (0)30 91 20 75-100 • Fax: +49 (0)30 91 20 75-199
E-mail: info@ltb-berlin.de • http://www.ltb-berlin.de
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September 2016, Rev. 3

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  • Page 1 September 2016, Rev. 3 LTB Lasertechnik Berlin GmbH • Am Studio 2c • D-12489 Berlin Tel.: +49 (0)30 91 20 75-100 • Fax: +49 (0)30 91 20 75-199 E-mail: info@ltb-berlin.de • http://www.ltb-berlin.de...
  • Page 2 With the purchase of a laser from the MNL 300 series, you have selected a state-of-the-art Nitrogen Laser. The laser satisfies sophisticated needs and demanding goals in various applications within the industrial area. The following properties reveal the advantages of the MNL 300. High pulse power Minimal beam divergence Minimal time jitter...

  • Page 3: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS NVISIBLE LASER RADIATION IGH VOLTAGE UP TO ANGEROUS GASES YMBOLS ERVICING AND ISCLAIMER 1.5.1 ESONSIBILITIES OF THE BUYER 1.5.2 IABILITY EPLACEMENT PARTS 1.5.3 ISCLAIMER OF MPLIED ARRANTY LEANING INSTRUCTION ONDITIONS F ACCEPTABILITY SYSTEM REQUIREMENTS LACE AND WAY OF INSTALLATION LECTRIC REQUIREMENTS ONNECT THE LASER POWER SUPPLY UNIT ONLY TO A MAINS THAT CORRESPONDS TO THE VALUES STATED ON THE TYPE LABEL...
  • Page 4 APPENDIX PECIFICATIONS ECHNICAL ABLE OF LABELS NSPECTION AND MAINTENANCE IMENSIONS AND INTERFACES UNCTIONAL BLOCK DIAGRAM AFETY FUNCTIONS Syncout (optional feature) Content 4...

  • Page 5: Safety Precautions 5

    1 Safety precautions MNL Lasers are 3B class lasers (IEC 60825-1). Improper treatment and operation of the laser can cause damage to your health. Please follow carefully all the instructions in this manual. 1.1 Invisible laser radiation The laser emits intensive invisible laser radiation in the UV range.

  • Page 6: High Voltage Up To 12 Kv

    1.2 High voltage up to 12 kV A high voltage of up to 12kV is generated in the laser. Therefore, observe the protected earth connection of the mains. The earth conductor connection from the laser housing to the input of the LTB power supply of the laser is ensured.

  • Page 7: Servicing And Disclaimer

    1.5 Servicing and Disclaimer The laser must be used properly. LTB is not liable for improper use. Opening of the laser is prohibited. If warranty or general repair or service to a LTB product is requested by the customer involving the product’s return to LTB. 1.5.1 Resonsibilities of the buyer The buyer is responsible for providing the appropriate utilities and a operating enviroment as outlined in the...

  • Page 8: Cleaning Instruction

    1.6 Cleaning instruction For cleaning, turn off the laser and disconnect from mains! Do not use cleaning supplies. Use a slightly moist or dry cloth to clean the enclosure, be careful with the link. The laser can be put back into operation after drying. 1.7 Conditions Of acceptability The user is responsible to verify the requirement of the standard IEC60825-1:2007 and has to provide information...

  • Page 9: System Requirements 9

    2 System requirements 2.1 Place and way of installation The laser has to be operated and stored in a dry, dust- poor and well-ventilated area. Operation temperature ° C +15 ... +38 Storage temperature ° C -10 ... +60 Max. rel. humidity Air pressure mbar 750 ...

  • Page 10: Electric Requirements

    2.2 Electric requirements The laser is supplied with a low voltage of 24 V DC 3.0 A. A power supply unit providing the low voltage from the mains is optional part of the delivery. The mains connection values are: 100 to 240 V, 47/63 Hz, 1.1-0.45 A (see type label). Connect the laser power supply unit only to a mains that corresponds to the values stated on the type label.

  • Page 11: Installation 11

    3 Installation 3.1 Connections 1 Power cable (Mate-N-Lok) 2 External trigger input, optical (HP OWG) 3 Remote key (Mini-USB, Interlock and visual laser warning) 4 Sync.-Out (SMB, optional) 5 Fiber output (SMA) 3.2 Acclimatizing the laser We recommend that the laser is acclimatized before it is switched on in the operating room for 1 hour, if it was exposed to ambient temperatures outside the allowable operational temperature range before.

  • Page 12: Operating The Laser 12

    4 Operating the laser 4.1 Establish the readiness for operation Connect the power supply unit via the device cord with the mains. Connect the Mate-N-Lok connector to the laser. 4.2 Remote key and remote socket The remote socket (see page 10, [3]) is provided for: Closing the external remote circuit with the remote Integrating external applications in the remote circuit of the laser...

  • Page 13: Starting The Laser Operation

    With the opening of the beam guidance or of the sample chamber the laser will be automatically switched off. The necessary cables can be obtained from LTB. 4.5 Starting the laser operation You must provide the laser an external optical trigger signal.

  • Page 14: Safety Functions 14

    5 Safety functions To ensure a safe laser operation, a number of monitoring functions has been set up. They comprise: Supervision of the casing, protection against contact Temperature monitoring inside the laser External interlock circuit at remote key connector 5.1 Configuration of remote key connector 1 2 3 4 5 configuration description...

  • Page 15: Optional Features 15

    6 Optional Features 6.1 Fiber coupling The generated laser light is coupled into a quartz fiber. The fiber diameter is 400, 600 or 1000 µm. The numerical aperture NA is 0.22. The transmission of the fiber coupling is approx. 90 % (1000 µm).

  • Page 16: Appendix

    7 Appendix 7.1 Specifications, Technical Data General MNL302 MNL305 MNL308 Wavelength 337.1 Spectral bandwidth Pulse halfwidth FWHM, typ. Guaranteed pulse energy (90 % after 60 mill.) µJ 85@20Hz 80@50Hz 75@80Hz Typ. pulse energy (typ. 70 % after 100 mill.) µJ 28@20Hz 26@50Hz 25@80Hz...
  • Page 17 General MNL330 Wavelength 337.1 Spectral bandwidth Pulse halfwidth FWHM, typ. Guaranteed pulse energy (90 % after 60 mill.) µJ 28@300Hz Repetition rate (Max) 300Hz Peak Power (Max) Energy stability SD/<E> (for all rep. rates) ≤ 2 Beam dimensions, vertical x horizontal, typ. 1,5 x 4 Beam divergence, vertical x horizontal mrad...

  • Page 18: Table Of Labels

    7.2 Table of labels label type label and symbol Certification Identification Laser power Appendix 18...
  • Page 19 label type label and symbol Aperture Appendix 19...
  • Page 20 label type label and symbol Warning Guaranty label Information label Appendix 20...

  • Page 21: Inspection And Maintenance

    Inspection and maintenance After the laser has run 2 years the laser should be sent for inspection and cleaning to LTB. Depending on the dust concentration in the cooling air, the dust filter has to be replaced every 6 to 18 months. If the filter is dirty, the laser can overheat. 1.

  • Page 22: Dimensions And Interfaces

    7.4 Dimensions and interfaces Appendix 22...

  • Page 23: Functional Block Diagram

    7.5 Functional block diagram Appendix 23...

  • Page 24: Safety Functions

    7.6 Safety functions Appendix 24...

  • Page 25: Syncout (Optional Feature)

    7.7 Syncout (optional feature) the “Syncout” signal is intended to trigger cameras and similar devices. It is designed to provide both minimum delay ( typical 4 ns) and very low jitter ( < 0,2 ns) with respect to laser output. The signal is provided via an SMB interface, corresponding cable has to be 50 Ohm terminated .

This manual is also suitable for:

Mnl302Mnl305Mnl308

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