Download Print this page
Hide thumbs Also See for LDI-7:

Advertisement

Quick Links

LDI-7
Operating Manual
This manual contains important information necessary for the safe and efficient operation of the LDI light source
system. Please read the manual in its entirety and heed all safety warnings before operating the light source.
Follow all safety precautions!
DANGER – LASER RADIATION
AVOID EYE OR SKIN EXPOSURE TO DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT
Prior to use, carefully unpack and inspect all components for any signs of damage which may have occurred during
shipping. If shipping damage is suspected, notify 89 North or your authorized 89 North distributor immediately.
89 North customer service or your authorized 89 North distributor should be informed immediately in the event
of any damage or malfunction in the equipment.
89 North
®
20 Winter Sport Lane, Suite 135
Williston, VT 05495
U.S.A.
877-417-8313
+1-802-881-0302
www.89north.com
01-000000000605, Revision D
1

Advertisement

loading
Need help?

Need help?

Do you have a question about the LDI-7 and is the answer not in the manual?

Questions and answers

Summary of Contents for 89 North LDI-7

  • Page 1 If shipping damage is suspected, notify 89 North or your authorized 89 North distributor immediately. 89 North customer service or your authorized 89 North distributor should be informed immediately in the event of any damage or malfunction in the equipment.
  • Page 2 Contents Document Symbols ............................3 Equipment Symbol Definition ..........................4 Specifications..............................5 Introduction and Intended Use ..........................6 Certification Description ............................6 Safety ..................................7 System ................................7 Laser Safety Guidance ..........................9 6.2.1 Maximum Permissible Exposure Limits ....................9 6.2.2 Hazard Distance ..........................10 6.2.3 Protective Eyewear .......................... 10 System Overview .............................
  • Page 3 1 Document Symbols Special instructions are emphasized as follows: This term contains important information regarding set-up and operation to facilitate ease NOTE: of use and obtain effective results This term contains critical information regarding safe handling and use of this system. Device malfunction or property damage could result if these instructions are not followed.
  • Page 4 2 Equipment Symbol Definition Caution - Risk of electric shock This symbol indicates there are hazardous electrical parts inside the equipment. Caution - Risk of danger This symbol indicates that safe handling and usage instructions must be followed to avoid injury and/or damage. DANGER –...
  • Page 5 DANGER – OPTIONALLY INTERLOCKED PROTECTIVE HOUSING PANEL Visible and/or invisible laser radiation when open and interlock failed or defeated. Avoid eye or skin exposure to direct or scattered radiation. This label indicates that removal of the panel to which this label is affixed will permit laser radiation in excess of Class 3B when interlocks are failed or defeated.
  • Page 6 The LDI-7 has seven discrete wavelength channel(s): 1-Violet, 2-Blue, 3-Green, 1-Red. The LDI-7 has two output connector(s) one corresponding to the multicolor laser module; one corresponding to the SHG laser. 89 North can supply an optional Bifurcated Fiber to combine the two LDI outputs into one fiber for light delivery.
  • Page 7 6 Safety 6.1 System WARNING: The LDI contains Class 4 lasers. No field service or maintenance procedures are prescribed that present access to the Class 4 emission. Follow all procedures and heed all warnings provided in this manual to ensure access to Class 4 emission is prevented.
  • Page 8 Do not attempt to operate the LDI with the external output fiber distal end capped or not connected to an instrument or beam dump. Doing so could result in significant damage to the laser. WARNING: Never operate the LDI with the optical fiber disconnected from the instrument or beam dump as visible and invisible laser radiation can be harmful to the unprotected eye and skin.
  • Page 9 WARNING: Use the laser in an enclosed room with restricted access. WARNING: The LDI produces significant amounts of heat. Ensure sufficient clearance around the front and rear of the unit for proper cooling. WARNING: Never attempt to override safety interlocks or operate the unit with interlocks overridden.
  • Page 10 6.2.2 Hazard Distance Nominal Ocular Hazard Distance (NOHD) is the minimum distance from the laser output aperture beyond which the beam radiant exposure remains below the appropriate corneal maximum permissible exposure (MPE). In this case of NOHD determination for the LDI, the output aperture is taken to be the end of the output optical cable.
  • Page 11 LDI Overview Figures LDI: Rear Panel Fiber Access Cover Cover Front Cover Feet Figure 2: LDI-7 Model Shown 01-000000000605, Revision D...
  • Page 12 Front Panel Controls and Indicators: Laser Enabled Indicators Fiber Access Cover Release Button Master Key Switch Status Indicator & Soft Power Switch Figure 3: Front Panel (LDI-7 Model Shown) Rear Panel Connections: USB Connector: Host Computer Interface DB-25 System Connector: Analog/TTL Interfaces Remote Interlock...
  • Page 13 Laser Safety Label Locations: Class 4 Explanatory Label Class 4 Interlocked Panel Label Figure 5: Laser Safety Labels, Interlocked Fiber Access Cover Aperture Labels (Fiber Access Cover Removed) Figure 6: Laser Safety Labels, Apertures Class 4 Optionally Interlock Panel Label Figure 7: Laser Safety Label, Interlocked Cover 01-000000000605, Revision D...
  • Page 14 Metamorph®, refer to the “Metamorph® Driver Installation zip file on the supplied thumb drive or contact 89 North customer support for assistance. The DB25 system connector pinout is show below. Refer to Table 1 for analog and TTL signal levels.
  • Page 15 The Breakout Box connects to the LDI unit with the supplied DB25 male to male cable. BNC connections are provided to connect to the customer supplied equipment (BNC cables not included). Currently available for LDI-7. Please contact 89 North for availability of a custom Breakout Box. Figure 9: Breakout Box and Cable (LDI-7 Model Shown)
  • Page 16 • LDI.exe graphical user interface Carefully unpack all components. Use of a power supply other than that provided by 89 North may void the certifications listed in section 5 above, and it is not supported without prior NOTE: agreement. It is the sole responsibility of the end user to verify regulatory compliance of operation with an alternate power supply.
  • Page 17 Figure 10. LDI-7 shown with the fiber access cover. LDI-7 shown without the fiber access cover. Install the output optical cables: If applicable, remove the caps from the connector(s) installed in fiber access area. Connect output optical cables to the connector(s). Route the optical cable(s) or bifurcated fiber legs through the associated slot(s) in the LDI front panel, (Figure 11).
  • Page 18 Fiber Access Cover Lip Fiber Access Cover Figure 12: Fiber Access Cover Replacement (LDI-7 Model Shown) Close the fiber access cover by pressing down on the cover until it latches. If the fiber access cover is not properly installed and closed, the LDI will not emit light.
  • Page 19 Setting Up Control Interfaces Run “LDI Setup.exe” supplied on the USB flash drive to install the LDI graphical user interface ("LDI.exe") and device drivers on the host PC. Follow the prompts to complete the installation. Note: The device drivers will install after the LDI.exe application install completes. The LDI GUI supports Windows 10 and above operating systems.
  • Page 20 The remote interlock ensures that laser emission is not accessible when the terminals of the interlock are open-circuited. Operating the LDI without the remote interlock properly connected to the customer-supplied equipment may impair safe operation of the equipment. Turn the master key to the ON position. The LDI is now ready to be operated. Additionally, cycling the master key ON-OFF-ON again will often clear a fault.
  • Page 21 LDI model in use. Figure 15. The GUI prior to powering on the LDI. (LDI-7 Wavelengths Shown) Depress the power switch on the front panel to turn the LDI on. The unit will start in Warm-Up mode, as indicated by the yellow indication on the front panel status ring LED.
  • Page 22 Status Indicator Status Bar Figure 16. Status Indicator and Status Bar (LDI-7 Wavelengths Shown) Here, the ring in the upper right corner of the GUI is yellow, indicating that the LDI is in Warm-up mode. The operating mode is indicated in the status bar in the lower left corner.
  • Page 23 System Info & Settings Figure 17. System Info and Settings. (LDI-7 Wavelengths Shown) System Info & Settings can be accessed by pressing the gear icon. Also note that the ring indicator is now green, indicating that the LDI is no longer in Warm-up mode The ‘Control Mode’...
  • Page 24 LDI power cycles. Figure 18. Control Mode Tab Figure 19. TTL Configuration Tab. (LDI-7 Wavelengths Shown) If 'Host USB' mode is selected for intensity control, set channel intensities to the desired levels (0-100%) via the slider, arrows (incrementing by 1%), or text controls in the GUI, (Figure 20). Additionally, clicking in the intensity bar space for a given channel will increment the intensity setting by 10%.
  • Page 25 Text Arrows Slider Figure 20. GUI Intensity Controls. (LDI-7 Wavelengths Shown) Controls of the LDI can be changed on the home screen of the GUI using the slider, arrows, text boxes, or by clicking in the intensity bar space. If 'Host USB' mode is selected for shutter control, open the shutters of the desired channels by clicking the shutter buttons of the corresponding channels.
  • Page 26 Figure 21. Compact Mode GUI. (LDI-7 Wavelengths Shown) 11.2 Turning Lasers On (Run Mode) The LDI supports the concurrent operation of up to 4 laser lines. In ‘Host USB’ control mode, the system limits the number of concurrently open shutters to 4. In ‘External Digital’ shutter mode, the number of concurrently open shutters is not constrained by the LDI firmware.
  • Page 27 Immediately shutdown the unit and contact 89 North Technical Service Other indications are utilized for factory service modes. If the Status Indicator LED displays a color or blink rate other than described above, contact 89 North Technical Service. See section 18, “Troubleshooting”. 11.4 Laser Enabled Indicators As shown in Figure 3, the front panel of the LDI includes two Laser Enabled Indicators.
  • Page 28 User Interface Files such as the system calibration configuration file, log files, and scenario files, are located in the “C:\Users\<<username>>\Documents\89 North\LDI\” folder. These files are important but not critical to the operation of the LDI unit and are not deleted nor overwritten when the LDI GUI software version is updated.
  • Page 29 Figure 24: Saved Scenarios Location Saved scenarios may be transferred from one host computer/LDI to another but the “.ini” file should not be edited outside of the LDI GUI. To restore or ‘Load’ a Saved Scenario, select the file open icon to the left of the save icon. This will open a dialog box where the Saved Scenario can be selected and applied.
  • Page 30 LDI Unit is connected to. (Figure 26). Figure 26: System Info & Settings “Auto Select” Checkbox. (LDI-7 Wavelengths Shown) Open another instance of the LDI GUI and repeat the above steps, selecting the COM Port that the additional LDI Unit is connect to.
  • Page 31 Software and Firmware updates are released when important or significant changes and improvements are made to the software. Contact 89 North customer support if you feel an update is required for your LDI unit. When updating the LDI firmware, be sure to update the LDI control software (GUI) first.
  • Page 32 The LDI light engine is under warranty for two years from the date of delivery provided it is operated as described in this manual. 89 North reserves the right to deny replacement of LDI units that appear to have been damaged by improper use.
  • Page 33 (if the fault has been removed) by clicking the GUI status indicator (see Figure 16) and/or cycling the master key on-off-on. Attempt to remove the fault condition and clear the fault before cycling the power (unplug-plugin) in all cases. Below is a list of more common fault messages. Should the recommended actions not correct the problem, please contact 89 North Technical Support.
  • Page 34 depressed and the "Laser Ready" light is blue. WARNING:_FIBER_INTERLOCK_2_OPEN Interlock - SHG Fiber Open Verify that the interlock switch in the SHG fiber routing slot on the front of the LDI is completely depressed and the "Laser Ready" light is blue. SYSTEM_FAULT_OVER_CURRENT Over current Please contact a technical representative...
  • Page 35 SYSTEM_FAULT_SYSTEM_ERROR System Error Unplug the unit and wait 10 seconds before reapplying power to the system. If the error persists, please contact a technical representative. SYSTEM_FAULT_CHANNEL_ERROR Channel Error Unplug the unit and wait 10 seconds before reapplying power to the system. If the error persists, please contact a technical representative.
  • Page 36 FIRMWARE_MAX_SHUTTERS_OPEN -20103 Attempted to open a shutter Only 4 shutters can be open at one time. when maximum number If this fault persists while less than four already open shutters are open, unplug the unit and wait 10 seconds before reapplying power to the system.
  • Page 37 soft power button until it starts blinking blue, then try updating the firmware again. If the error persists, please contact a technical representative. PC_APP_WRITE_FLASH_ERR -40008 LDI UI - error updating If you were trying to update your unit’s firmware firmware, Try updating the firmware again.