Operation Manual NIRFlex ® N�500 093020 en
Table of contents Table of contents 1 2 3 4 3 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.2 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Safety . . . . . . . . . . . . . . . .
Table of contents 5 6 4 4.6.3 Petri dish add-on for NIRFlex Solids . . . . . . . . . . . . . . . . . . . . . . . . . . 31 4.6.4 Vial add-on for NIRFlex Solids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 4.6.5 Tablet add-on for NIRFlex Solids . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 4.6.6 XL add-on for NIRFlex Solids . . . . . . . . . . . . . . . . . . . . . . . .
Table of contents 7 8 9 10 5 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 7.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 7.2 Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 7.2.1 Optical surfaces and probes . . . . . . . . . . . .
1 1 About this manual About this manual This manual describes the NIRFlex N-500 including its standard software and provides all information required for its safe operation and to maintain it in good working order. It is addressed to laboratory personnel and operators in particular. Read this manual carefully before installing and running your system and note the safety precautions in section 2 in particular.
2 2 Safety Safety This section introduces the safety concept of the instrument and contains general rules of behavior and warnings from direct and indirect hazards concerning the use of the product. For the users safety, all safety instructions and safety messages in the individual sections shall be strictly observed and followed. Therefore, the manual must always be available to all persons performing any tasks described herein. 2.
2 2.4 Safety Safety warnings and safety signs used in this manual DANGER, WARNING, CAUTION and NOTICE are standardized signal words for identifying levels of hazards and risks related to personal injury and property damage. All signal words, which are related to personal injury are accompanied by the general safety sign.
2 Symbol Safety Meaning Explosive gases, explosive environment Hot item, hot surface Device damage Fragile components Unplug device Wear protective goggles Wear protective gloves Do not dispose as unsorted household waste! Additional user information Paragraphs starting with NOTE transport helpful information for working with the device / software or its supplementaries. NOTEs are not related to any kind of hazard or damage (see following example).
2 2.5 Safety Product safety The NIRFlex N-500 has been designed and built in accordance with state-of-the-art technology, at the time of development. Safety warnings in this manual (as described in section 2.4) serve to make the user alert to and avoid hazardous situations emanating from residual dangers by giving appropriate counter measures. However, risks to users, property and the environment can arise when the instrument is damaged, used carelessly or improperly.
2 Safety NOTICE Risk of instrument damage by mechanical shocks. • • • • 2.5.
2 Device labels 2.5.3 Safety Meaning Location LASER emission Sticker inside housing, at the LASER module Personal protective equipment Safety precautions and personal protective equipment might be necessary to comply with industrial safety standards in some working environments. However, for standard operation with the instrument, no additional protective equipment is necessary. 2.5.4 Built-in safety elements and measures The instrument is equipped with the following safety elements: • • • • 2.
3 3 Technical data Technical data This section introduces the reader to the instrument specifications and the list of materials used. 3.1 Materials used Materials used Component Material designation Base plate Aluminium / stainless steel Wedges TeO2 Polarizers Glass Housing Polyurethane foam Detector InGaAs Magnets NdFeB 3.2 Technical data basic instrument 3.2.
3 3.2.2 Technical data Computer requirements The spectral data are collected in the NIRWare database on the PC. The following minimum configuration is needed for the PC running the NIRWare Software Suite (1.4): Computer hardware and software requirements Windows XP Professional (32-bit only), SP3 or higher / Windows 7 Professional / Ultimate (32-bit only) Dual Core 2.
3 Technical data Technical data NIRFlex Solids Transmittance (cont.) 3.3.3 Photometric linearity The “addition of filter technique” has been used. A 2% transmission filter and a wavelength standard (Rare Earth Oxide mixture) were used for the addition. Both filters were measured individually and together in series. The addition of the individual measurements has been compared with the measurement of both filters ihn series.
3 3.4 Fiber-optic measuring cells and accessories 3.4.1 NIRFlex Fiber Optic Solids Technical data Technical data NIRFlex Fiber Optic Solids Detector extended range InGaAs (temperature controlled) Electric power supply 100−230 VAC ± 10 %, 50/60 Hz, 20 W Ambient conditions < 80 % relative humidity for T < 31 °C, linear decreasing to 67 % at 35 °C, max.
3 3.4.3 Technical data NIRFlex Fiber Optic SMA Technical data NIRFlex Fiber Optic SMA Detector extended range InGaAs (temperature controlled) Electric power supply 100−230 VAC ± 10 %, 50/60 Hz, 20 W Ambient conditions < 80 % relative humidity for T < 31 °C, linear decreasing to 67 % at 35 °C, max.
4 4 Description of function Description of function This section explains the basic principle of the instrument, shows how it is structured and gives a functional description of the assemblies. 4.1 Functional principle The NIRFlex N-500 is a modular optical instrument (basic instrument and measuring cell) to determine the matter and concentration of substances in samples. In detail, the NIRFlex N-500 is a Fourier Transformation Near Infrared spectrometer (FT-NIR).
4 Description of function Reference laser control The laser deliveres a constant, wavelength-stable beam of 633 nm. The laser beam a is coupled into the NIR beam b to pass the interferometer before being decoupled d and analysed by the “Laser feedback sensor” e. A fraction of the beam is splitted at the polarizer b and picked up by an intensity sensor c to monitor the laser beam quality.
4 Description of function Data processing and interferogram analysis The NIR light interacts with the sample G material in different ways, leaving a characteristical fingerprint on the interferogram. At liquids the light is mostly transmitted and at solids reflected. The remaining light is collected by the detector H. The built-in computer further processes the raw signal. 4.
4 4.2.1 Description of function Transflectance mode Translucent and opaque liquids can be analyzed via transflectance mode. The light penetrates the liquid, is diffusely reflected by the reference plate and passes the sample a second time. The transflected rays contain the spectral information of the sample.
4 Description of function NOTE • With special accessories, reflection-mode probes can be equipped for transflectance. • The samples should either be measured at a constant temperature or the temperature influences must be considered during calibration. • Recommended number of scans: Qualitative calibration: 4−16; quantitative calibration: 16−32 • Most liquid sample materials can be constantly analyzed with the help of a flow-cell adapter. 4.2.
4 4.2.3 Description of function Transmission mode NIR light is sent through a defined pathlength of sample material (e.g. in a cuvette). The transmitted light contains the spectral information. This is the preferred method for testing liquids. pathlength Cuvette NIR light 4.2.4 Detector Diffuse transmission mode The diffuse transmission mode is a mixture of “diffuse reflection” and “transmission” mode.
4 4.3 Description of function Basic instrument The basic instrument consists of the spectrometer unit with the interferometer, the lamp unit with two lamp modules, the laser unit and electronic boards. The Instrument Software (embedded software) controls the spectrometer and communicates with the PC running NIRWare and with the measuring cell. It controls all actors (stepper motor, heating, etc.) and sensors (light barrier, temperature sensor, etc.) in the measuring cell.
4 4.3.2 Description of function Laser unit The laser unit comprises: • Laser tube • High voltage power supply The intensity of the laser light is continuously checked. When it falls below a certain threshold, the operator has to change the laser, see section 7.5. The hours of operation are logged. The typical lifetime of a laser is about 20000 h. 4.3.
4 Description of function About the external PC The external PC must run Windows® XP or Windows® 7 as operating system and meet the system requirements (see technical data, section 3.2.1). The NIRWare software suite must be installed successfully on the computer. The database might be installed on a network drive, to be accessible by different spectrometer. 4.4.
4 4.5 Description of function About the software The NIRWare software meets industrial standards in terms of inner structure combined with a comprehensive and intuitive, wizard guided user interface. It is also ideally suited for many applications in the pharmaceutical, food and feed industry. Advanced software and system management is done with the NIRWare Management Console tool.
4 4.5.3 Description of function NIRCal chemometric software NIRCal is a modern chemometric software package for use with Buchi FT-NIR Spectrometers. It can be used for qualitative and quantitative applications. For method development a lot of comprehensive pretreatments are available. However, the software is easy to use even for novices. The Calibration Wizard guarantees the development of reproducible calibrations.
4 4.6.2 Description of function NIRFlex Solids List of NIRFlex Solids add-ons Spinner / Petri dish add-on Vial add-on Tablet add-on XL add-on Flow cell Max.
4 9 8 7 5 10 6 4 Description of function 11 3 2 14 1 16 15 17 a Detector b Magnet sensor c Status LED d START button e STOP button f Internal reference g Magnetic coding h Sample i Petri dish 12 13 j Petri dish holder k Rotary plate l Motor m Optic 1 n Light barrier o Mirror 1 p Mirror 2 q Optic 2 Functional principle of the NIRFlex Solids 4.6.
4 4.6.4 Description of function Vial add-on for NIRFlex Solids NIRFlex Solids with vial add-on The NIRFlex Solids with the vial add-on is the ideal configuration to measure solid samples in glass vials. This special add-on is equipped with 6 positions for sample vials with a diameter of 10−15 mm. Buchi provides one type of glass vials as an optional accessory for this specific add-on. This built-in External Reference is measured automatically without any interaction of the operator.
4 4.6.6 Description of function XL add-on for NIRFlex Solids NIRFlex Solids with XL add-on The NIRFlex Solids with the XL add-on is the ideal configuration to measure solid sample in undefined sample containers, like bags, beaker glasses, etc. The sample container is placed on the flat add-on directly over sampling window. The sample holder will not rotate during the measurement. To carry out the reference measurement, the user has to place the External Reference (see also section 5.
4 4.6.8 Description of function XL add-on for B+L sample cups for NIRFlex Solids The NIRFlex Solids with the XL add-on for B+L (Bran+Luebbe) sample cups is the ideal configuration to measure solid sample in the B+L closed cup. The sample holder will not rotate during the measurement. NOTE For reference measurement remove the B+L cup first. Place the centering ring and the External Reference onto the XL add-on and perform the measurement. XL add-on for B+L sample cups 4.6.
4 4.6.10 Description of function Spinner add-on NIRFlex Solids in combination with the Spinner add-on is the ideal configuration to measure smaller solid samples whereas the volume of a petri dish is too big. This add-on can also be used with a transflectance cover to analyze liquids (e.g. solvents or milk). The transflectance technique is suitable for customers, who analyze liquids occasionally. Spinner add-on Cuvettes (i.e.
4 4.6.12 Description of function NIRFlex Solids Transmittance NIRFlex Solids Transmittance It is a major request described in the pharmacopoeias to ensure consistency of dosage units; each unit in a batch should have active ingredient content within a narrow range around the label claim. Traditionally these analyses are made using HPLC determining only the active content, which is time consuming and very costly. The speed, efficiency, and cost situation can be very much improved by NIR spectroscopy.
4 Description of function Transmission measurements offer the advantage of collecting the information from the entire cross section of the samples. This is ideal, especially for coated or multilayer tablets. NIRFlex N-500 is optimized for transmission measurements of solid dosage forms, like tablets or capsules. a b a Detector b Sample position Sensor position and beam path 4.6.
4 Description of function The picture shows the SST sample plate. The picture shows an examle of a 30-place sample plate for hard gelatin capsules. Sample plates of the NIRFlex Solids Transmittance 4.6.14 NIRFlex Liquids NIRFlex Liquids The NIRFlex Liquids is the ideal configuration to measure liquids like solvents, oils, etc. in transmission mode using glass cuvettes.
4 6 Description of function 8 7 9 5 4 10 3 15 11 2 1 14 a STOP button b START button c Status LED d Detector e Optic 2 f Ventilation g Heating h Motor 12 13 i Optic 1 j Mirror k Aperture l Light barrier m Magnetic coding n Magnet sensor o Reference position Functional principle of the NIRFlex Liquids 38 NIRFlex N-500 Operation Manual, Version F
4 4.6.15 Description of function NIRFlex Fiber Optic Solids NIRFlex Fiber Optic Solids The NIRFlex Fiber Optic Solids is the ideal configuration to measure solid samples in their original container. The reflection probe operates with a fiber bundle. The reflection probe can accommodate a transflectance adapter to analyze liquids as well (e.g. solvents, milk, etc.). The transflectance technique is a good compromise for customers, who only analyze liquids occasionally.
4 Description of function 9 6 10 5 11 12 13 14 7 4 8 3 2 1 16 18 17 15 a Magnet sensors b LEDs: OK, not OK c START button d Handle e Fiber bundle f Electrical connections probe g Light barrier h Holder for fiber optic i Internal reference j Optic 3 k Detector l Motor m Optic 1 n Optic 2 o Directly reflected rays are invisible for the fiber optic p Transflectance adapter q Magnet r External Reference Functional principle of the NIRFlex Fiber Optic Solids 40 NIRFlex N-500 Operation Manual, Ve
4 4.6.16 Description of function Transflectance adapter for NIRFlex Fiber Optic Solids The transflectance adapter is an optional accessory for the NIRFlex Fiber Optic Solids and enables to measure liquid samples, pastes and transparent films.
4 Description of function The LEDs at the handle of the fiber optic probe indicate the status of the system and the results of the prediction in routine operation. Applications without calibration (just measuring spectra, e.g.
4 4.6.18 Description of function NIRFlex Fiber Optic SMA The NIRFlex Fiber Optic SMA is the ideal configuration to measure both, liquids and solids with external accessories. The SMA-cell can be used to connect mono or multi fibers via its two SMA connectors. Laboratory and immersion process probes in transmission or diffuse reflection mode as well as flow-through cells can be attached. NIRFlex Fiber Optic SMA NOTE • Glas fibers have to be handled with care.
5 5 Putting into operation Putting into operation This section describes how the instrument is installed and gives instructions on initial startup. To avoid damage by condensate moisture, special attention is needed when the instrument was delivered at cold temperatures. Do not remove the instrument from its plastic bag for at least two hours to let the instrument acclimatize to the ambient temperature! NOTICE Risk of instrument damage by moisture condensate.
5 Putting into operation In the front of the main cover of NIRFlex N-500 there is an opening which is hidden behind the “Locked - Unlocked” shield. For the operation of the transportation lock pull out the shield first. Insert the torx screwdriver supplied with the instrument and flip the locking mechanism by moving it to the side.
5 Putting into operation The instrument must be installed: • • • • indoor only with a clearance of 15 cm minimum to walls and any other objects without being exposed to heating or cooling source (e.g. direct sunlight or air conditioning) with the transportation lock in unlocked position (see previous section) on a stable and horizontal position NOTE Because of its weight it is recommended to carry the instrument with two persons.
5 Putting into operation NOTE • To cut the power in case of an emergency by unplugging, the instrument or any other item must not block the mains plug! The plug must be able to be pulled out instantly at all time. • Additional electrical safety measures such as residual current breakers may be necessary to meet local laws and regulations! • External power switches (e.g. emergency stop switches) must meet IEC 60947-1 and IEC 60947-3 requirements.
5 Putting into operation LAN setup of the PC To establish communication, set up the IP of the connected PC in accordance to the local network environment or via direct link as listed below. IP-configuration of the connected PC (direct link): • Static IP-address 192.168.1.2 • Subnet mask 255.255.255.0 5.4.2 Network integration There are various possibilities how the NIRFlex N-500 can be installed and used.
5 5.5 Putting into operation Installing the measuring cells All different measuring cells are provided with a plug connection. Installing a measuring cell To install a measuring cell, proceed as follows: • • • • lace the measuring cell vertically into the provided space. P Carefully applying pressure to the measuring cell, make sure that the plug connection catches. Make sure it is seated well by means of the centerning pins at the NIRFlex N-500.
5 5.6 Putting into operation Installing the cover of the NIRFlex Solids Transmittance b a Insert the tilted cover a and hook its left hinge onto to the bushing pin (hinge counterpart) at the rear left hand side of the measuring cell. Tilt the cover back into a straight position b. c Keep the right hinge of the cover in a matching position with the bushing screw. Fasten the screw c with a few turns (the screwdriver is part of the scope of delivery).
5 Putting into operation Additional handling instructions • • • Install the measuring cell with the top cover closed to avoid mechanical stress at the hinges! Keep the top cover closed during a measurement to keep out scattered ambient light. Open and close the top cover carefully. At closing: A small bumper avoids hard impact to the cover. At opening: Do not release the top cover until it is in fully open position! The hinges might break-away. Additional handling instructions 5.
5 Putting into operation If this is not the case, proceed as follows: • S lide the adjustment ring over the transflectance sleeve and turn it on the thread as far as possible. • N ow slide the 1 mm spacer ring over the transflectance sleeve, so that the pin on the inner surface of the spacer ring fits into the groove in the adjustment ring. • P lace the 1 mm spacer disk in the center of the transflectance adapter window.
5 Putting into operation • Now turn the adjustment ring upwards until there is no clearance between the adjustment ring and the spacer ring anymore. • Tighten one of the three socket screws on the adjustment ring by means of the allen key. • Loosen the retaining screw and remove the transflectance adapter from the probe head. • Now tighten the remaining two socket screws on the adjustment ring and the socket screw on the spacer ring.
5 5.8 Putting into operation Installing measurement equipment to the NIRFlex Fiber Optic SMA To install the instrument, proceed as follows: left connector = short spring To mount the SMA-adapter onto the optical fiber cable: right connector = long spring • Put the spring onto the fiber connector and secure the end of the connector with the threadened spacer nut.
5 5.9 Putting into operation Starting up the system An automatic initialization process starts as soon as the NIRFlex N-500 and the PC are started up. The main components of the spectrometer are identified and its basic functions are checked during that initialization process, e.g. lamp unit, standard wheel, laser unit, measuring cell. The time needed for initialization is about 60 seconds. 5.9.
5 5.9.4 Putting into operation Signal-to-noise ratio determination With this test the ratio of signal power to noise power is determined. A high flux (maximum intensity) and a low flux (10% intensity) beam is being analyzed for a number of wavenumber intervals. ➡ To pass these tests, the average and the minimum values must be within the tolerance. 5.9.5 Wavenumber stability test The wavenumber stability of the system is checked with the PMMA reference plate of the reference wheel.
5 Putting into operation Internal and External Reference measurements provided by the measuring cells/add-ons Measuring cell / Add-on Internal reference External Reference NIRFlex Solids with Spinner add-on - manually NIRFlex Solids Transmittance - built-in NIRFlex Fiber Optic Solids x manually NIRFlex Fiber Optic Liquids x manually NIRFlex Liquids - built-in NIRFlex Fiber Optic SMA (+ individual accessories) x manually without internal reference: Spectrum = sample ext.
6 6 Operation Operation This section describes how to start a measurement and how to prepare a reference measurement and gives recommendations on possible applications of the instrument. NOTICE Risk of instrument damage at use with engaged transportation lock. • • 6.1 Disengage the transportation lock prior use Keep shocks and vibrations away General recommendations for measuring solids The calibration wavelength range with a standard fiber optic probe goes from 4500 to 10000 cm-1.
6 6.2 Operation General recommendations for measuring liquids For sample measurements with the NIRFlex Liquids, make sure that the cuvettes are placed in the direction of the centre of the cuvette holder. This is important to ensure optimal heat transfer to the sample. The calibration wavelength range with glass cuvettes goes from 4000 to 10000 cm-1. The useable wavelength range for measurements with a fiber optic probe is 4500 – 10000 cm-1. Temperature differences can cause a spectral shift.
6 6.4 NIRFlex Solids 6.4.1 Reference measurement for the Petri dish add-on Operation A pop-up will remind the operator to measure the External Reference as soon as a certain time window (predefined in the Application Designer) has passed.
6 Operation Typical samples for the NIRFlex Solids Transmittance include tablets, hard gelatin capsules, powders or soft gelatin capsules including semi-liquids or oily liquids, which requires a very high dynamic photometric range of the system. The design of the measuring cell takes this requirement into account. Without any special settings the user will generate spectra with optimized signal-to-noise ratio for his specific samples.
6 ! Operation CAUTION Minor or medium burns by hot surfaces • Do not touch the cell chambers NOTE The software does not prevent measurements in case of incorrect temperatures. The operator is responsible, that the current temperature corresponds with the set temperature. A reproducible temperature of the samples is crucial when carrying out measurements in transmission mode. The heat-up time of the sample material must be sufficient to reach the measurement cell temperature.
6 ! Operation WARNING Risk of fire by highly flammable materials • 6.7 Do not insert highly flammable materials or samples into the measurment cell NIRFlex Fiber Optics All fiber optics must be treated with special care to avoid breaks and other damages of the glass fibers and optical surfaces! Cleaning should always be done manually with a soft, lint free damp cloth with mild soapy water. Optical surfaces can be cleaned with Kimwipes. NOTICE Risk of damage at the fiber optics • • • • • 6.7.
6 6.7.2 Operation NIRFlex Fiber Optic Liquids For most of the applications a pathlength of 1 or 2 mm is the best choice. Many samples will contain water or alcohol, which cause strong NIR absorptions. Therefore for the standard NIRFlex Fiber Optic Liquids a pathlength of 2 mm will be sufficient (special versions with other pathlengths are available).
7 7 Maintenance and repairs Maintenance This section gives instructions on all maintenance work to be performed in order to keep the instrument in good working condition. In addition to this, adjustment jobs the operator can carry out by himself/herself are explained.
7 Maintenance and repairs In order to avoid contamination by sample material between the measurements, clean the surfaces in direct contact with the sample after each measurement. NOTE • S witch off the NIRFlex N-500 and all directly connected eletronic devices i.e. monitors before cleaning the housing. • Avoid scratches on optical surfaces as they can influence a measurement! • For coated optical surfaces, use abrasion-resistant precision cloths such as Kimwipes from Kimberly-Clark.
7 Maintenance and repairs NOTICE Risk of damage at the External Reference • Do not drop the External Reference • Do not scratch the surface • Never bring it in contact with hard objects. • Do not use any cleaning media with abrasive character which might scratch the surface. • Do not use item for reference measurement when damaged or scratched. • o not use any compressed air for blowing off dirt from the External Reference, as it often D contains oil and is not sufficiently pure.
7 Maintenance and repairs NOTE • Exact cleaning procedures tailored to the indiviudal sample composition have to be developed by the customer. • When you analyze liquids of medium or high viscosity, sample residues may accumulate in the measuring gap and all other gaps between the adapter and the probe. In this case, remove the transflectance adapter from the probe head to clean it thoroughly in order to avoid a sample cross-contamination during the next measurement. 7.
7 Maintenance and repairs MyNadiaFiles Send this file to your customer service organisation for evaluation. To archive the file, copy it to a different folder. 7.4 Lamp module replacement The primary lamp module needs to be replaced quickly after failure. This action can be performed by a trained operator. After failure of the primary lamp module, the following instructive message appears: NOTE When the primary lamp is broken the instrument automatically switches to the secondary lamp.
7 ! Maintenance and repairs CAUTION Risk of minor burns by hot lamp module. • • • • Switch off the device first and unplug the mains cable Do not touch hot parts or surfaces Let the lamp module cool down safely Do not touch the bulb glass To replace a defective lamp module, proceed as follows: • • • Switch off the instrument and unplug the mains cable. Let it cool down safely! Loosen the two screws on the left rear of the instrument approximately 3-5 turns. Remove the cover.
7 Maintenance and repairs NOTICE Risk of instrument damage by ingress of particles. • • Check proper seating of all housing parts before use Do not operate instrument when housing is open or unlocked Resetting the lamp lifetime counter After lamp module exchange, the following message appears at power on: Message concerning required instrument setup • Click the OK icon to confirm the message. • Now click the Service icon (Operator) and double-click ‘Assembly’.
7 Maintenance and repairs Workflow to reset the lifetime counter of the primary lamp module To establish the standard working conditions of the NIRFlex N-500: a b c • • • • Start the Operator software Switch from “secondary lamp” a to “primary lamp” Resetting the hour b counter will bring up a prompt for confirmation Confirm the message c to finally set the lamp lifetime counter to zero ➡ After this procedure, reboot the NIRFlex N-500 and restart the Operator software.
7 7.5 Maintenance and repairs Laser unit replacement The LASER unit needs to be replaced at failure. This action can be performed by a trained operator or (preferably) by a service technician. ! WARNING Risk electric shock and burns by remaining high-voltage load at the LASER module • Do not disconnect the white plug from the laser power supply White plug at laser power supply NOTICE Risk of optical misalignment and damage at the LASER module.
7 Maintenance and repairs • D isconnect the electric lasers power supply plug. • L oosen the two screws which are on the laser unit bottom plate. For easy release of the laser it is recommended to lift it upright and than pull the laser unit backwards. • N ow take the new laser unit, insert it and make sure that its base plate is correctly placed into the bolts. • Fix the new laser unit with the two screws and connect the electric plug. • Close the housing of the laser unit.
7 Maintenance and repairs Resetting the laser lifetime counter After LASER unit replacement the following message appears: Message concerning required instrument setup • Click the OK icon to confirm the message. • Now click the Service icon (Operator). The following dialog opens: Assembly setup dialog • Click the icon next to the Laser Module row . The following dialog appears: Exchange sequence dialog for the laser • Activate the watch icon next to the line Laser hours of operation .
7 Maintenance and repairs The following screen indicates the laser lifetime counter is set to zero: Hours of operation of the laser • Now click the Go Back icon 7.6 to finish the procedure. Filter pad replacement When the filter pads at the rear of the instrument and the measuring cell are dirty, ventilation and thermal stability of the instrument will no longer be ensured. Replace the pad after 6 month of use at the latest.
7 7.7 Maintenance and repairs Main fuse replacement The primary fuses are located at the rear of the instrument next to the power supply socket. They are accessible from the outside. To replace the primary fuses, proceed as follows: • Unplug the power cord! • Remove the defective fuses from the holder and replace them with new fuses of the same rating (T 10 A, L 250 V). • Reconnect the power supply connector and switch on the instrument. Replacing the primary fuses 7.7.
7 7.8 Maintenance and repairs NIRFlex Solids It is possible that solids or pasty samples are spilled into the sample holder of the NIRFlex Solids. In this case it is recommended to start the cleaning process as soon as possible to prevent any damage of the instrument. Special attention is needed on that point, if aggressive media are spilled over the instrument. To clean the measuring cell, proceed as follows: • Remove the add-on from the measuring cell.
7 7.10 Maintenance and repairs Customer service Only authorised service personnel is allowed to perform repair work at the instrument. These persons have a comprehensive technical training and knowledge of possible dangers which might arise from the instrument. Addresses of official Buchi customer service offices are given on the Buchi website under: www.buchi.com. If malfunctions occur at your instrument or you have technical questions or application problems, contact one of these offices.
8 8 Storage, transport and disposal Storage, transport and disposal This section instructs how to handle the instrument for storage or transport, and gives advice on disposal. NOTICE Risk of instrument damage at storage and transport • • • • 8.
8 Storage, transport and disposal Health and Safety Clearance Declaration concerning safety, potential hazards and safe disposal of waste. For the safety and health of our staff, laws and regulations regarding the handling of dangerous goods, occupational health and safety regulations, safety at work laws and regulations regarding safe disposal of waste, e.g.
9 9 Spare parts Spare parts and accessories This section lists spare parts, accessories and options of the instrument including their ordering information. Order the spare parts from Buchi. Always state the product designation and the order number when ordering spare parts. Use only genuine consumables and genuine spare parts for maintenance and repair to assure good system performance and reliability.
9 9.1.
9 Spare parts NIRFlex Fiber Optic Solids Product Order number For measurements in diffuse reflection 2 m fiber length N512-000 3 m fiber length N512-004 5 m fiber length N512-005 NIRFlex Fiber Optic Liquids Product Order number For measurements in transmission mode using a fiber optic probe (default length 2 m, custom-made lengths up to 7 m available) N513-000 NIRFlex Fiber Optic SMA 9.1.3 Product Order number For measurements in transmission or diffuse reflection mode.
9 9.1.4 Spare parts Standard accessories Standard accessories Product Order number 1 Power supply cable Example Type CH 10010 Type Schuko 10016 Type GB 17835 Type USA 10020 Type AUS 17836 1 Ethernet connection cable NIRFlex N-500/PC 48457 Operation Manual NIRFlex N-500 English 93020 German 93019 French 93021 Italian 93022 Spanish 93023 Quick Guide NIRWare 1.2 Quick Guide NIRWare English 93124 German 93125 French 93126 Italian 93127 Quick Guide NIRWare 1.
9 9.1.
9 Spare parts Optional accessories (cont.
9 Spare parts Optional accessories (cont.
9 Spare parts Optional accessories (cont.) 9.
9 9.3 Spare parts NIRFlex Solids Spare parts NIRFlex Solids Product Order number Fuse 2.
9 9.4 Spare parts NIRFlex Solids Transmittance Spare parts NIRFlex Solids Transmittance 9.5 Product Order number Fuse 2.0 AT 02998 10 filter pads 42778 Window, complete 48961 Tweezers 48959 Cover for NIRFlex Solids Transmittance 48955 NIRFlex Liquids Spare parts NIRFlex Liquids 9.6 Product Order number Fuse 2.
9 9.8 Spare parts NIRFlex Fiber Optic SMA Spare parts Fiber Optic Solids 9.9 Product Order number Fuse 2.0 AT 02998 10 filter pads 42778 Packing parts SMA 11056060 Transflectance adapter Spare parts transflectance adatper Product Order number Spacer ring 0.5 mm 48994 Spacer ring 1 mm 48995 Spacer ring 1.
10 10 Declarations and requirements 10.1 FCC requirements (for USA and Canada) Declarations and requirements English: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to both Part 15 of the FCC Rules and the radio interference regulations of the Canadian Department of Communications. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
10 10.
BÜCHI Labortechnik AG CH-9230 Flawil 1 / Switzerland T +41 71 394 63 63 F +41 71 394 65 65 www.buchi.
