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MS257 USB/RS232
MONOCHROMATOR
AND
SPECTROGRAPH
User's Manual
MODELS: MS257-M-FH-A, MS257-M-FH-L, MS257-M-FH-D, MS257-M-MC-A,
MS257-M-MC-L, MS257-M-MC-D, MS257-M-MT-A, MS257-M-MT-L, MS257-M-
MT-D, MS257-S-FH-A, MS257-S-FH-L, MS257-S-FH-D, MS257-S-MC-A, MS257-
S-MC-L, MS257-S-MC-D, MS257-S-MT-A, MS257-S-MT-L, MS257-S-MT-D
Family of Brands – Corion
• New Focus™ • Oriel
Instruments • Richardson Gratings™ • Spectra-Physics
®
®
®
M77781A, Rev B
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Table of Contents
Summary of Contents for Oriel MS257 Series
- Page 1 MODELS: MS257-M-FH-A, MS257-M-FH-L, MS257-M-FH-D, MS257-M-MC-A, MS257-M-MC-L, MS257-M-MC-D, MS257-M-MT-A, MS257-M-MT-L, MS257-M- MT-D, MS257-S-FH-A, MS257-S-FH-L, MS257-S-FH-D, MS257-S-MC-A, MS257- S-MC-L, MS257-S-MC-D, MS257-S-MT-A, MS257-S-MT-L, MS257-S-MT-D Family of Brands – Corion • New Focus™ • Oriel Instruments • Richardson Gratings™ • Spectra-Physics ® ® ®...
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Page 2: Table Of Contents
11 APPENDIX A - BASIC GRATING INFORMATION ................60 12 DECLARATION OF CONFORMITY..................... 67 13 WARRANTY AND RETURNS ......................68 13.1 CONTACTING ORIEL INSTRUMENTS................68 13.2 REQUEST FOR ASSISTANCE / SERVICE ................. 69 13.3 REPAIR SERVICE ........................ 69 13.4 NON-WARRANTY REPAIR ....................70 13.5 WARRANTY REPAIR ...................... - Page 3 LIST OF FIGURES Figure 1: Grating Care and Handling ......................4 Figure 2: MS257 Dimensions........................6 Figure 3: Input and Output Ports .........................7 Figure 4: Mounting Hole Pattern for Ports ....................7 Figure 5: Monochromator Interior Layout....................10 Figure 6: Light Path of a Monochromator ....................11 Figure 7: Light Path of a Spectrograph .....................12 Figure 8: Light Path of Imaging Spectrograph ..................12 Figure 9: Utility Program Main Window.....................24...
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Page 4: Safety Operating Precautions
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 1 SAFETY OPERATING PRECAUTIONS Electrical The MS257 operates from nominal ac mains of 115/230 Vac. Do not attempt to work in the electrical compartment without first disconnecting the power cord, since you may contact high voltage areas inside the compartment. -
Page 5: Introduction
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 2 INTRODUCTION The MS257 isn't just another monochromator. It is the heart of a completely automated spectral data acquisition system. All you need is a PC and a detector system. The MS257 is an F/3.9 instrument with a focal length of 257 mm for use as a monochromator, true flat field spectrograph or imaging spectrograph. -
Page 6: Setup And Mounting
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 3 SETUP AND MOUNTING After unpacking, mount the MS257 in a convenient location, install the grating turret with gratings and remove the covers from optics. After these steps have been completed, plug in the power cord. *** WARNING *** DO NOT PLUG IN THE POWER CORD UNTIL ALL THE SAFETY PRECAUTIONS HAVE BEEN READ. -
Page 7: Mounting Other Instruments To The Ms257
3.2 MOUNTING OTHER INSTRUMENTS TO THE MS257 Sources, detectors and other instruments that have an Oriel 1.5 inch (47 mm) female flange can be easily attached to any of the MS257 slit assemblies at the ports. Other accessories can also be mounted directly to MS257 at any of the input or output ports (Figure 4). -
Page 8: Turret Installation
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 3.3 TURRET INSTALLATION In order to protect the most sensitive part of the instrument during transportation, the grating turret is packaged separately from the housing. Install the turret into the instrument using the following procedure: Quadruple Grating Turret (may have 2, 3 or 4 gratings installed) ... -
Page 9: Quick Start
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 4 QUICK START 4.1 WORKING WITH THE HAND CONTROLLER The Hand Controller (Model 77709) controls the MS257 via an RJ11 jack located on the back panel. Below the LCD screen are five LEDs that indicate the status of various functions. To operate the MS257 with the hand controller, ensure that the following two LEDs are ON. -
Page 10: Instrument Description
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 5 INSTRUMENT DESCRIPTION 5.1 LAYOUT AND MAJOR FEATURES Refer to the descriptions of the MS257 accessories throughout this manual for more information on the items shown in Figure 5. Figure 5: Monochromator Interior Layout... -
Page 11: Configuration Versatility
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 6 CONFIGURATION VERSATILITY 6.1 USE AS A MONOCHROMATOR Figure 6 depicts the MS257 in use as a monochromator. The "in-line" configuration uses a turning mirror at the exit port. This can be either the 77718 Replaceable Turning Mirror on the 77716 Motorized Output Flip Mirror. -
Page 12: Use As A Spectrograph
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 6.2 USE AS A SPECTROGRAPH Figure 7 depicts the MS257 in use as a spectrograph. The axial port accommodates detectors over 4” (100 mm) diameter depending on the distance they need to be mounted from the port face. -
Page 13: Instrument Features
The shutter may be changed in the field so that it is normally open. Contact the Oriel Instruments service department for details. The 77755 shutter automatically closes when changing gratings and filters in order to protect the detector from possible high light intensities at various grating angles - particularly the zero order white light. -
Page 14: Instrument Operation
Hand Controller, the configuration software or a computer terminal program. The instrument can be configured by Oriel Instruments to have calibrations saved on CD for more than one grating turret, allowing the user to change the turret and load the appropriate configuration information as needed. - Page 15 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Minimizing Stray Light Stray light is unwanted light which interferes with the light being measured or transmitted. This results in additional noise to light measurements. At best, this results in incorrect measurements. At worst, the signal cannot be measured. Stray light can occur for a number of reasons: ...
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Page 16: Utility And Configuration Software
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 7.2 UTILITY AND CONFIGURATION SOFTWARE The Monochromator Utility Software CD contains: Installation setup for Mono Utility software. The utility application provides easy access to almost all MS257 functions. A folder with the MS257 configuration application installation setup. ... -
Page 17: Utility Software Installation
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 7.2.2 UTILITY SOFTWARE INSTALLATION The MS257 utility program may be installed on computers with Windows XP or Windows 7 32-bit operating systems. It is suggested to exit all programs before running the installer. Place the installation CD into the computer which will be used to control the MS257. Open the CD to view the contents in Computer (or My Computer if using W indows XP). - Page 18 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH NOTE: If one is planning to use GPIB, the 77793 converter will be required to operate the instrument. The 77793 must be set to G Mode. In the MS257 folder, run the setup.exe application. If using Windows 7, right click on the application and choose “Run as administrator.
- Page 19 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Choose to accept the two License Agreements and click Next to proceed.
- Page 20 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Click the Next button to begin the installation. When complete, click Next for USB and RS232 installation. For the GPIB installation, click Finish.
- Page 21 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH The following window will appear briefly only if installing the USB/RS232 utility program. If installing onto a Windows XP computer, the following message may appear. Click Continue Anyway. Restart the computer. If using Windows XP, the utility program installation is now complete. If using Windows 7, additional steps are required.
- Page 22 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH ADDITIONAL INSTRUCTIONS FOR WINDOWS 7, 32-BIT USERS On the CD, open the USB Drivers folder. Copy the file USBBulk.sys to the computer’s Windows\system32\drivers folder. Copy the USBBulk.info file to the computer’s W indows\Inf folder...
- Page 23 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Open the Program Files\Mono_UT folder on the computer. Then open the folder which contains the utility program, based upon the communications method being used. Right click on the .exe application and select “Properties”. Click on the “Compatibility” tab Check the box “Run this program as an administrator” and click...
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Page 24: Figure 9: Utility Program Main Window
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Using the Utility Software Launch the application from Start/Programs/MonosUtility. Enter the SERIAL port number if you are trying to communicate to MS257 from the RS232 host. The default port number is set to 1. If unsure of the port, check the Device Manager. ... -
Page 25: Ms257 Configuration Software
Configuration Software should only be used if the MS257's memory is corrupted or erased. If the instrument is not working properly, review the information found in the instruction manuals. It is suggested to contact the Oriel Instruments service department before . NOTE: This program does not allow making changes to the parameters. Changes must be made to the configuration file (.cfg) by using a text editor or word processor software. - Page 26 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Open the 77700CFG folder, based upon the communication method being used. NOTE: If one is planning to use GPIB, the 77793 converter will be required to operate the instrument. The 77793 must be set to G Mode. In the MS257 folder, run the setup.exe application.
- Page 27 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Click Next to continue. If the GPIB software is being installed, fill in the Name and Company fields and click Next to continue. Both fields must be filled in before proceeding.
- Page 28 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Browse to choose an installation location on the computer, if desired. The default location of the Configuration program will be Program Files\OrielInstruments\77700cfg… Click Next to proceed. Rename the program folder, if desired, and click Next.
- Page 29 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Click Next to proceed. When the setup has been completed, check the box to launch the program file. Then click Finish.
- Page 30 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH The following window will appear briefly. Click Next to proceed with installing the Labview Runtime Engine. Do not cancel this setup, even if a different version had already been installed onto this computer in the past. If the GPIB version of the software is being installed, fill in the Name and Company fields before clicking Next.
- Page 31 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Select Yes to accept the license agreement. Click Next to install the Labview Runtime Engine into the default directory.
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Page 32: Figure 10: Configuration Program Main Window
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Using the Configuration Software Launch the configuration program from Start/Programs/77700cfg ... Use the 'Retrieve Current Memory' menu to read MS257 memory and save to a file. To view the retrieved memory selectively, click any one of the four buttons at the bottom of the screen. -
Page 33: 77709 Hand Controller
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 7.3 77709 HAND CONTROLLER The Hand Controller is a very compact hand held device with backlit LCD, and 40-key keypad. Virtually every function of the MS257 can be controlled from the keypad, from simply moving to a particular wavelength, to changing the grating and filter selections. - Page 34 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH The LCD Screen Layout The backlit liquid crystal display has four 20 character lines. The backlight can be turned on and off by pressing the Local key. System information is displayed as shown below: Line Wave: Line...
- Page 35 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Sending Commands using the Hand Controller System parameters can be queried or changed using the Hand Controller's keys: Action Keys (Lt. Blue) - These keys cause an immediate action to take place and have no parameters.
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Page 36: Figure 11: Hand Controller Keypad
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Figure 11: Hand Controller Keypad... - Page 37 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Parameter Tables Changeover tables for grating turrets, filter wheels and detector port need to have their parameters entered as tables. A table consists of a list of records, each having a wavelength and the corresponding selected device number. The prompt indicates the record number with wavelength and device.
- Page 38 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Selecting Auto Mode The wavelength changeover table is not used by the MS257 unless the device is placed into automatic operation mode. This is done by selecting '0' for the device position. The prompt line indicates the device's current position and whether or not the device's automatic changeover mode is enabled.
- Page 39 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Command Shifted Key Description Type Aborts a scan in progress. The Prompt Line is ‘Aborted>’ or an Abort Action error code. Action Initiates a scan. If system information is enabled (Inf) the Prompt Line is ‘Scanning>’. The LCD general information and LEDs are updated during the scan.
- Page 40 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Shifted Key Command Type Description Filter wheel 1 position ‘:Manual’ or ‘:Automatic’. Read/Write Prompt Line is ‘F1 Pos>’. Enter the filter number. Wavelength Changeover Table Key for Filter wheel 1. The Prompt Line is e.g. ’1)Wav:F1>0:’. There are 9 records in Table (F1) Read/Write the table.
- Page 41 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Command Shifted Key Description Type Saves the current system parameters. The Prompt Line is Save Action ‘Saved>’. MS257 firmware version number. The Prompt Line is e.g. Action ‘1.00>’. Set the wavelength units. The Prompt Line is ‘Units>’. Enter the wavelength units as nanometers (NM), microns (UM), or wave Units Read/Write...
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Page 42: Communications
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 7.4 COMMUNICATIONS Communicating with MS257 There are three ways of sending commands to MS257: Using the Hand Controller. The MS257 is already configured for operation with a Hand Controller Using the USB or RS232 interface and protocols. The MS257 is already configured for operation via USB or RS232 communications. -
Page 43: Programming Ms257
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 8 PROGRAMMING MS257 The MS257 can be controlled using the Hand Controller or by direct communication with the internal microprocessor. We have provided three levels of program control: Direct communication via USB 2.0 using the MS257 command language through a dll. ... -
Page 44: Accessories
9 ACCESSORIES 9.1 GRATING TURRETS The drive can control kinematically interchangeable grating turrets. The Oriel Instruments patented Quadruple grating turret offers an unequaled degree of automation with no compromise in optical performance. This high precision turret scans about the face of the selected grating, as do traditional monochromators, thus offering the best resolution and light throughput over the grating scan range. -
Page 45: Gratings
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH GRATINGS The standard gratings available for the MS257 are listed below. Other gratings can be specially ordered from Oriel Instruments. Groove Blaze Primary Reciprocal Array Peak % Model Spacing Wavelength Type Wavelength Dispersion Bandpass... -
Page 46: Slits
If the plate is correctly inserted the Oriel logo should face the exterior and the slit should lie n the center of the aperture. -
Page 47: Figure 14: Using Fixed Slits With Ms257
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Figure 14: Using Fixed Slits with MS257 Important tips for fixed slit installation: The slit should always be inserted with its reflective side facing out (for example, towards the light source or the detector.) ... - Page 48 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH The standard fixed slits available for the MS257 are listed below. Fixed Slit Model Slit Width (µm) Slit Height (mm) Resolution (nm) 77222 0.10 77220 0.15 77725 0.15 77221 0.25 77219 0.25 77728 0.45 77729 0.45 77730...
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Page 49: Figure 15: Micrometer Driven Slit Dimensions
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Micrometer Driven Slit Assembly The 74002 Micrometer Driven Slit Assembly uses a precision micrometer drive to adjust the slit width from closed to 3 mm. Apply a 10x multiplier to the micrometer markings to readout the slit opening;... -
Page 50: Figure 16: Micrometer Driven Slit Adjustments
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH The micrometer is used to adjust the slit width The slide is used to adjust the slit height Figure 16: Micrometer Driven Slit Adjustments Micrometer setting for a closed slit Figure 17: Micrometer Driven Slit Closed Position... -
Page 51: Figure 18: Motorized Slit
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Motor Driven Slit Assembly The 77722 Motor Driven Slit Assembly has continuously adjustable width from 4 µm to 2000 µm. The slit height is 15 mm. The motor drive uses a micro-stepping motor and each step corresponds to a 2 μm change in slit width. - Page 52 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Slits and the Instrument's Bandpass This is the band of wavelengths passed by the monochromator at any one wavelength setting. It may be obtained by multiplying the slit width by the reciprocal linear dispersion, and is usually specified in nanometers.
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Page 53: Filter Wheels
A ribbon cable connects each filter wheel to the back panel of the MS257, which can be configured to automatically control filter selection. Mount the filter wheel(s) directly on the slit housing using the Oriel flange mounts. Wavelength changeover points can be loaded into MS257 so that the filters are selected as scanning progresses. -
Page 54: Input And Output Ports
The side exit mirror installation requires that the instrument be recalibrated. It is strongly suggested to have the installation of the exit mirror and the recalibration performed by Oriel Instruments. Only someone experienced with calibrating optical instrumentation should attempt to install the mirror in the field. -
Page 55: Figure 20: Motorized Flip Mirror
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH AXIAL OUTPUT PORT C LATERAL INPUT PORT OUTPUT PORT A motorized flip mirror is required to switch between output ports B and C Figure 20: Motorized Flip Mirror... -
Page 56: Figure 21: Dual Source Configuration
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Switching Between Two Input Ports The 77713 Beam Steer is auxiliary input port used to convert MS257 so that it has two selectable input ports available. This is particularly useful for scans which cover wavelength ranges that would benefit from the use of two different sources, such as going from UV to VIS/IR. -
Page 57: Specifications
Image horizontal magnification (77781 & 77782): Vertical magnification (77782) Imaging spatial resolution (77782): < 350 µm* (using 200 µm fiber) Image vertical stability: ±125 µm Image horizontal stability: ±5 µm * Oriel Instruments suggests input channel separation to be > 150 µm for practical systems. - Page 58 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Gratings Grating mounts: Single or Quadruple Grating Rotation: Optical Center Grating Size: 50 x 50 x 6 mm Kinematic repeatability: ±0.05 nm Quadruple turret grating change time: 1 second per grating Grating selection repeatability Wavelength: ±0.05 nm Image vertical position:...
- Page 59 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Software: Utility Software (included) LabView VIs and dll file (included) Spectroscopy software (optional) Hand Controller (optional): 40 key hand held keypad 4 line, (20 character) backlit super twist LCD 5 status lights Remote/Local control switching 14 ft (4.26 m) cable Background Shutter: Behavior:...
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Page 60: Appendix A - Basic Grating Information
Oriel Instruments solves this problem by using a diameter which would give the equivalent area to the grating. For example: the effective F number of the Oriel 77781 is calculated by using the focal length of 220 mm, and grating size of 50 mm square. The grating has an area of 2500 sq. -
Page 61: Figure 23: The "Grating Equation
Figure 23: The "Grating Equation" In monochromators designed by Oriel Instruments, the input slit and collimating mirror fix the direction of the input beam that strikes the grating. The output collimating mirror and slit fix the angle D, as they determine the direction that light from the grating must go to exit the monochromator. - Page 62 “raising” or “increasing” the resolution, when in fact the resolution number decreases. Oriel Instruments uses the convention that raising or increasing the resolution is an improvement, although the resolution number actually decreases, e.g. raising the resolution from 2 nm to...
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Page 63: Figure 24: Grating Resolution
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH 400 l/mm grating Note difference 1200 l/mm grating wavelength range resolution of the 577 and 579 doublet. A glass filter was used to block the second order of UV lines. Figure 24: Grating Resolution When spectrographs are used with diode arrays and CCD detectors, the resolution is often limited by the pixel width. -
Page 64: Figure 25: Diffraction Orders
M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Grating Orders Gratings have the property of dispersing light into a series of orders (See Figure 25). The zero order is simply reflected light, and zero order light defines the zero degree grating angle in a monochromator. The phenomenon of multiple orders can be an advantage since the 2nd order has twice the dispersion of the first order, and so on. - Page 65 M77781A MS257™ USB/RS232 MONOCHROMATOR AND SPECTROGRAPH Blaze The blaze wavelength is the wavelength at which the most energy is dispersed. Gratings can be blazed by making the groove faces at a specific angle to the grating surface. The blaze wavelength is achieved by cutting a groove with an angle such that the facet normal bisects the angle between the incident and diffracted rays (see Figure 23).
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Page 66: Figure 26: Polarization And Efficiency
Oriel Instruments offers both rules and holographic gratings to provide the best combination of blaze, efficiency and low light scatter for... -
Page 67: Declaration Of Conformity
Beaune; 01/06/2012 Bruno Rety Authorized compile technical Domenic Assalone documentation Site Manager, Oriel Products Division Group Director, PPT Instrument and Motion Europe 150 Long Beach Boulevard Micro-Controle Division of Newport Corporation Stratford, CT 06615 Zone Industrielle 45340 Beaune la Rolande, France... -
Page 68: Warranty And Returns
MONOCHROMATOR AND SPECTROGRAPH 13 WARRANTY AND RETURNS 13.1 CONTACTING ORIEL INSTRUMENTS Oriel Instruments belongs to Newport Corporation's family of brands. Thanks to a steadfast commitment to quality, innovation, hard work and customer care, Newport is trusted the world over as the complete source for all photonics and laser technology and equipment. -
Page 69: Request For Assistance / Service
Oriel's discretion. Oriel is not responsible for damage occurring in transit. The Owner of the product bears all risk of loss or damage to the returned Products until delivery at Oriel's facility. Oriel is not responsible for product damage once it has left the facility after repair or replacement has been completed. -
Page 70: Non-Warranty Repair
Except as otherwise expressly stated in Oriel's quote or in the current operating manual or other written guarantee for any of the Products, Oriel warrants that, for the period of time set forth below with respect to each Product or component type (the "W arranty Period"), the Products sold hereunder will be free from defects in material and workmanship, and will conform to the applicable specifications, under normal use and service when correctly installed and maintained. -
Page 71: Loaner / Demo Material
WARRANTY. Representations and warranties made by any person including distributors, dealers and representatives of Oriel / Newport Corporation which are inconsistent or in conflict with the terms of this warranty shall not be binding on Oriel unless reduced to writing and approved by an expressly an authorized officer of Newport.
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