Symbols and Conventions..................7 Introduction....................9 Concept ........................9 Limitation of Liability ....................10 Before you begin ....................10 Minimum Qualifications for Service Personnel............11 The Bruker Service....................11 Transport to Manufacturer..................11 Safety......................13 General........................13 Personnel Requirements..................13 3.2.1 Qualifications......................13 3.2.2...
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Contents 5.3.2 Intelligent Devices with Can-Bus ................35 5.3.2.1 Shim Control......................36 5.3.2.2 Peripheral Control Board ..................37 5.3.2.3 GAB/2 Backplane ....................37 5.3.3 Intelligent Devices with LVDS................. 37 5.3.4 Devices without Interface ..................37 5.3.4.1 Transmitters......................38 5.3.4.2 Preamplifiers......................38 5.3.4.3 Lock Switch ......................
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Contents Network Settings ....................77 7.1.1 Resetting the CPU....................79 Firmware Update....................79 7.2.1 Ethernet Devices (Main Board, Lock Board, VTU)..........79 7.2.2 4.3.2 CAN-Bus Devices ..................80 FPGA Update ......................83 7.3.1 Lock Control and VTU .................... 83 7.3.2 Main Board ......................
About This Manual This manual is intended to be a reference guide for Bruker certified service engineers. It provides detailed information about the installation, maintenance and service and overall use of the Bruker device. The figures shown in this manual are designed to be general and informative and may not represent the specific Bruker model, component or software/firmware version you are working with.
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About WARNING This combination of symbol and signal word indicates a potentially hazardous situa- tion which could result in death or serious injury unless avoided. CAUTION This combination of symbol and signal word indicates a possibly hazardous situation which could result in minor or slight injury unless avoided. NOTICE This combination of symbol and signal word indicates a possibly hazardous situation which could result in damage to property or the environment unless avoided.
This service manual is intended to be used by trained Bruker service staff only. The manual is a service and installation guide for the console part of the Fourier 300 system. Please refer to the individual probe and magnet manuals for service related information on these devices.
Be sure that no NMR measurement is in progress during the installation as it might be disturbed. Information for ordering spare parts is available in the spare parts section from the Bruker Service Center (see "Contact" on page 145). Z31980_00_03...
Minimum Qualifications for Service Personnel Type of Task Personnel Training and Experience Transportation No special requirements. No special. Installation Bruker certified personnel only. Technically skilled, with a good knowledge of the application field. Routine Use Appropriately certified Laboratory technicians or equiva- experienced personnel, famil- lent.
Otherwise turn the device off and disconnect the power cable from the wall socket to the device. Avoid that anyone can re-power the system without your notice. Personnel Requirements 3.2.1 Qualifications Note: Only trained Bruker personnel are allowed to mount, retrofit, repair, adjust and dis- mantle the unit! Z31980_00_03...
Safety 3.2.2 Unauthorized Persons WARNING Risk to life for unauthorized personnel due to hazards in the danger and working zone! Unauthorized personnel who do not meet the requirements described in this manual will not be familiar with the dangers in the working zone. Therefore, unauthorized per- sons face the risk of serious injury or death.
Safety 3.4.1 General Workplace Dangers Dirt and Scattered Objects CAUTION Danger of injury from tripping over dirt and scattered objects! Dirt and scattered objects may cause people to slip or trip. A fall may result in inju- ries. Always keep the work area clean. ...
Safety Impacting Magnet NOTICE Material damage hazard due to impacting the magnet! Impacting the magnet may result in a quench. Mount the device carefully on the magnet. Avoid banging the magnet during installation and operation, e.g. when replacing the sample cassette.
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Safety Electric Current WARNING Electrical hazard from electrical shock! A life threatening shock may result when the housing is open during operation. Disconnect the device from the electrical power supply before opening the device. Use a voltmeter to verify that the device is not under power! ...
Safety 3.4.3 Mechanical Dangers Moving Parts CAUTION Accident hazard from movement of mechanical parts! The fingers or hand may be pinched due to movement of mechanical parts. Shut off the device before accessing. Falling Objects CAUTION Accident and material damage hazard from falling objects! Equipment may fall down during assembly, retrofitting, or dismantling.
Safety 3.4.4 Dangers from Gases Under Pressure Pneumatics WARNING Danger of injury due to movements caused by stored pneumatic forces! Pneumatically driven components may move unexpectedly due to stored residual forces, causing serious injuries. Work on the pneumatics system must only be carried out by trained pneumatics technicians.
Safety 3.4.5 Dangers from Radiation Strong Magnetic Fields WARNING Danger to life from strong magnetic fields! Strong magnetic fields may cause serious injuries or death and significant damage to property. Persons fitted with heart pacemakers must be kept away from the appliance. The functionality of the heart pacemaker could be compromised.
Safety 3.4.6 Dangers Due to High or Low Temperatures Hot or Cold Surfaces CAUTION Accident hazard from contact with hot or cold surfaces on the unit. Contact with the hot or cold surfaces of the unit may result in serious burns. ...
Material damage may result when the device comes in contact with NMR solvents. Follow instructions provided in the manual for correct handling of solvents. Follow the sensor cleaning procedures described in this manual. If surface damage should occur, contact Bruker for repair of damaged parts. Safety Devices WARNING...
Safety Overpressure Valve The high pressure system includes an overpressure valve which safely reduces the excess pressure in the event of inadmissible pressure conditions developing as a result of faulty operation, component failure or other irregular events. Environmental Protection NOTICE Danger to the environment from incorrect handling of pollutants! Incorrect handling of pollutants, particularly incorrect waste disposal, may cause seri- ous damage to the environment.
Safety The following pollutants are used: Helium inert gas Helium inert gas may cause suffocation at high concentra- tions. Disposal of the empty gas cylinders must be performed by a specialist disposal company. Nitrogen gas Nitrogen gas may cause suffocation at high concentrations. Disposal of the empty gas cylinders must be performed by a specialist disposal company.
Safety Danger Spot Warning indicating a danger spot in work rooms. Hand Injury Keep hands away from areas bearing this warning sign. There is a danger that hands could be crushed, drawn in or other- wise injured. Maximum Sample Height There is a danger that the sample breaks, if the sample exceeds the maximum sample height.
Tool Requirements All tools required for the installation are provided in the accessory case. Be sure to use non-magnetic tools, especially when working on unshielded magnets. Z31980_00_03...
Design and Function Overview Figure 5.1 The Fourier 300 Console Brief Description The Fourier 300 Console consists of the following main components: • "Intelligent Devices with Ethernet" • "Intelligent Devices with Can-Bus" • "Intelligent Devices with LVDS" • "Devices without Interface"...
Design and Function Ethernet Hub Air Inlet (air filter not shown) GAB/2 GAB/2 Backplane 2H Lock Preamp Power ON/OFF Control Board Figure 5.5 Console: Front View Air Filter Tray Remove the tray in order to clean the air filter. Figure 5.6 Location of the Console Air Filter Tray Z31980_00_03...
Design and Function To/From 2H Probe Mains IN To/From C13 Probe To BOSS1 Shim Sys- From Helium Sensor From Sample Detector To/From 1H Probe To Gradient Coil From Air Mains (4 bar) 10. To Sample Spin 11. To Sample Lift 12.
Design and Function 5.3.1.1 Main Board The Main Board contains the Pulse generation for two RF channels, the Receiver Chan- nel including digital filtering and and Gradient Channel with LVDS Interface. The Pulse Programmer is preloaded with a complete 1D- or 2D-Experiment. Once started, the entire experiment is run from the FPGA without interaction from the CPU.
Design and Function plane. The main board receives only 28Vdc from the central 28V PSU and generates all the other voltages it requires on board. 5.3.1.2 Lock System The Lock System comprises three unit that are mounted together on one module: •...
Design and Function • GAB/2 Backplane (Interface to GAB/2 Board and -24V power Supply) Slave of Main Board 5.3.2.1 Shim Control The Shim Control comprises two shim boards, each of which is capable of controlling up to 12 channels and a H0 coil. The two boards are cascaded and controlled from the main board CPU via CAN-Bus.
Design and Function 5.3.2.2 Peripheral Control Board The peripheral control board takes care of spin, lift, sample control, helium level mea- surement and also routes the individual shim cables to a standards BOSS1-Connector. It is controlled via CAN-BUS from the VTU. It also contains temperature sensors to moni- tors the console and shim stack temperatures.
Design and Function 5.3.4.1 Transmitters There are two transmitters which are identical in build but have a fixed routing so that the upper one is dedicated to 1H (providing about 50W at 300 MHz) and the other is dedi- cated to C13 (providing about 150W at 75 MHz). The transmitters receiver their RF and gating inputs from the main board and have an RF-Output monitor which can be routed to the main board receiver for diagnostic purposes.
Design and Function Figure 5.11 Lock Switch The lock switch signal is generated by the main board and is fed to the lock switch via a ribbon cable. An audible click can be heard when it is avtivated. A LED also indicates the status of the lock switch - see the figure below.
Design and Function Figure 5.13 Lock Switch connections & LEDS 5.3.4.4 Power Supplies The Fourier300 Console has two AC power supplies. • PSU 1: Input 90 – 250 Vac, Output: +5V, ±12V and +24Vdc (+standby voltage) • • Fans • Ethernet Hub •...
Design and Function 5.3.4.5 Ventilators Two 24Vdc Ventilators at the rear panel suck out warm air from the console. The ventila- tors have serial resistors to bring their actual operating voltage down to about 18V, where the operate more silently, prolong ventilator and filter lifetime and still create suffi- cient air flow.
Design and Function Accessories The Fourier has the following accessories / options: • Sample Express Lite Sample Changer • BSCU N2 Cooling Unit • Magnet vibration Isolation Z31980_00_03...
Installation Unpacking WARNING Lifting the Fourier up and out of the carton may cause injury and dam- age the device. Simply slide the carton sleeve up and over the console, and then slide the console off the pallet. NOTICE Material damage hazard due to incorrect unpacking procedure! Lifting the Fourier console out of the carton may damage the device.
Ethernet devices (Main Board, Lock and VTU) can be reached via ping or a web browser. Their addresses will usually be in the range: 149.236.99.25x If you are not sure the DHCP Server is running, you can check by opening Control Panel -> Administrative Tools -> Services -> Bruker DCHP Server Z31980_00_03...
Figure 6.1 Checking the DHCP Server If you are not sure what addressed have been assigned, you can check by opening the following file Bruker\Diskless\dchpd.leases lease 149.236.99.254 { starts 4 2010/08/19 11:08:55; ends 2 2038/01/19 03:14:06; tstp 2 2038/01/19 03:14:06;...
Installation binding state active; next binding state free; hardware ethernet 00:00:ad:12:85:12; uid "\001\000\000\255\022\205\022"; Once you are sure that all three devices have booted, you can start TopSpin. Normally your PC will come with CF having already been carried out. If you get an error message, that one or more devices cannot be found, you may have to repeat CF.
Installation 6.6.1 Setting the spectrometer frequency The next screen asks for the configuration name and spectrometer frequency (1H) in MHz. It is usual for Avance300 systems to set it to 300.13MHz. The field of the magnet is close to the corresponding value and the correct field value is achieved by adding a B shim current to it.
Installation 6.6.2 ETH Addresses and tty Settings During the cf run, some information is shown about the detected hardware. In addition to the Fourier main board, only the lock system, the VTU and the Lockswitch are part of the basic instrument. The Ethernet addresses of the Lock and the VTU are set by the DHCP server and don’t need to be set manually.
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Installation When CF has completed its device search, it comes up with a page of information show- ing all the devices it found. Z31980_00_03...
Installation 6.6.5 RF routing The routing window is rather easy. The green lines indicating a fixed hardware wiring have to be drawn as shown in the next screenshot. The receiver routing is done automatically and is not shown by default. It can be made visible by clicking on “show receiver routing”...
Installation The configuration ends with a summary of all the hardware and settings. Additional Configurations After finishing, cf automatically opens a window from which additional configurations can be started. Z31980_00_03...
Installation 6.7.1 Installation of Pulse Programs and Parameter Sets Clicking on “Expinstall” starts the installation and conversion of pulse programs and datasets. Choose “Installation for Spectrometer”. The next window will show an entry “Fourier” after finalizing TopSpin 3.1. click on it to install Fourier specific pulse programs and parameter sets.
Installation 6.7.2 Editing Solvents The list showing the common solvents in solution NMR is shown and can be edited in the same way as the nucleus list. Z31980_00_03...
Installation 6.7.3 Configuring the Probe The command edhead is used to make the probe specific parameters known to the spectrometer. Modern NMR probes use a special memory called PICS to store these data. This PICS memory can be read by the HPPR preamplifier system via a cable con- nection.
Installation The last step of probe definition ist the signal routing to the preamplifiers which looks like the figure below: 6.7.4 Configuring the Lock Parameters edlock gives access to the lock parameters being used for different solvents. The lock parameters for the Fourier are different from those for the Avance BSMS. Whereas the solvent related parameters as “Distance”...
Installation 6.7.5 Configuring the Transmitter and Preamplifier Pre-delays The command edscon allows to set the pre-delays for the transmitters and preamplifi- ers. Currently, these are not used by the Fourier system. Instead, they are preset to rea- sonable values. These can be changed on the Fourier web page. This may be changed in future releases.
Installation Setting the magnet to the right field The magnet is designed to be operated at 300.18 MHz with the current in the H0 Field Coil of the Shim System set to zero. At this frequency the Synthesizers are "cleanest" and least likely to create spurious problems ! When the lock is powered up from cold, the Field DAC is not automatically set.
Installation As explained in the previous chapter, some of the parameters have a different value range. This applies mainly to the PID parameters. Increasing loop gain and loop time results in a more rigid coupling to the lock signal (fast regulation with a higher risk to see lock artefacts in the baseline next to intense resonance lines).
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Installation First approach: Sweeping the B field. On the BSMS panel the sweep mode can be activated. The range (Ampl) and rate of the sweep can be adjusted. If there is no signal close to the current field value, the lock win- dow only shows a noisy baseline.
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Installation Once, these parameters are set correctly, open the edlock window. Select „BSMS“ in the menu and press Field Update. Leave the Phase set to -1, since this is stored by the lock control. Z31980_00_03...
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Installation There is a problem with this approach which also applies to the BSMS. The lock sends a series of RF pulses with a rate of 1kHz to the 2H coil. This results in an excitation profile of a central peak and a number of additional peaks on a 1kHz grid. These slowly decay in amplitude as their distance to the central peak increases.
Installation the lock shift. The new shift value is set in the Fourier and a normal lock procedure is started. Figure 6.2 Result of Flock with one Solvent Peak Result of flock if number of detected peaks is not compatible with number of expected solvent peaks.
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Installation Pressing OK updates the BSMS field value in edlock table. A subsequent lock procedure should be able to find the lock signal in the usual way. Fine-tuning the flock AU program. In the AU program, one can find the line: static const double scale = 19.79;...
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Installation Here is a zoom to the region of interest. The resonance line is at 26.22 ppm. From the edlock table, one can read that the C6D6 chemical shift for 2H is 7.16ppm. So, Z31980_00_03...
Installation use the field value to shift the proton resonance line to that value on the 1H frequency scale. A rough value for the field shift is 20ppm/1000 field units. It depends a bit on the actual shim board but can be a good starting point for all Fourier systems. There is no need to be exact at this point.
Installation 6.11 Tuning and Matching the Probe 6.11.1 General Information about the Fourier Probe The Fourier system is delivered with a special probe. It is a modified DUL probe with 13C and 2H on the inner coil and 1H on the outer coil. The special feature is a coil design which is much less susceptible to the salt content of the sample.
Installation Figure 6.3 Gradient echo • If this does not look like in the figure above, it could be, that the parameter sets have not been converted to the correct BF1. • The correct 2H pulse length. This is normally around 50us at 40 W and can be checked by a zg experiment, where 2H is selected as the oberve nucleus.
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Installation If gradshim is done for the first time on a system, the profiles of the various shim gradi- ents must be evaluated. (open Setup in the main window). This has only to be done once. If the shim profiles are available, it is possible to “Start Gradient Shimming”.
6.13 Installation Acceptance Note: All the for the Fourier 300 necessary Hardware Tests (HWT) were carried out dur- ing console end testing and are not intendend to be repeated at the customer site. The following ATP tests are carried out on the FOURIER during customer acceptance •...
Installation For the ATP Tests you will need the following samples The three Test Samples which were shipped with the system. • 3% CDCl3 in Chloroform (lineshape) • 0.1% EB in CDCl3 (1H SINO) • ASTM (C13 SINO) To shim the magnet and perform the ATPs test you will require to bring some additional samples: •...
Installation • "Asymmetric smileys" in some 1D spectra with high intensity. This can also be seen as reduction in the level of noise about 200 Hz from the right edge of some 1D and 2D spectra. If this part contains spectral information, simply increase the spectral width.
In order to prevent accidental damage, the web server access is password protected: User: root Passwort: BRUKER (in capitals !!) You can connect to the web server using any browser, but Firefox is recommended in case you want to save to password.
Configuration 7.1.1 Resetting the CPU Any change is network configuration, firmware of FPA content are only valid after rebooting the CPU. There are three ways to reset the CPU: • Power up • Pressing the reset button on the CPU •...
Configuration This takes a few seconds and is fin- ished when the message appears: File ... uploaded successfully! Press “Flash” to write the uploaded file into the Flash memory of the CPU. This takes about a minute and is fin- ished when the message appears: Successfully Programmed Flash.
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Configuration The procedure is started using Main -> support -> AVR Controller software update Select Device Board Number and press SET. Notice: GAB/2 Backplane and Peripheral Control the Board Number is always “Board 1” Since the shim control comprises two boards, this procedure has to be carried out twice. Once for Board1 and once for Board2.
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Configuration This procedure takes about 30 seconds and is finished when the programming menu reappears. Hex File Repeat this procedure (Upload & then flash) for the Hex file. This procedure takes a few min- utes and is finished when the fol- lowing message appears: Reset the Master CPU (in this example the VTU) by pressing the “Hardware Reset”...
Configuration GAB/ 2: Main Board: main -> fourier --> GAB/2 System -> GAB/2 Menu -> GAB/2 Control Peripheral Control: VTU: main -> VTU -> peripheral control –> base functions FPGA Update The FPGA Content of the Ethernet devices can be upgraded during run-time via the web-browser.
Configuration Begin the update procedure using main -> support -> XILINX CPLD/ FPGA Update. Select corresponding FPGA image (file ending *.xsfv) press Upload Xilinx XSVF-File. This takes a few seconds and is fin- ished when the Start window appears. Press Start. This procedure takes about 25 minutes !!! It is finished when this message appears.
Configuration Identify the current FPGA ver- sion. Start Allegro Flash Tool (Flash.exe), enter address of the main board, and select the FPGA image (file ending *.lz) Press Flash to start the proce- dure. This procedure takes about 35 min- utes !!! It is finished when the following message appears: Reset the CPU by pressing the “Hardware Reset”...
Configuration 7.4.1 Main Board 7.4.1.1 BIS EEPROM Settings In order for the main board to be recognized as a Fourier component, the following entries need to be made in NAME group part of the BIS EEPROM. This is accessed via: Main ->...
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Configuration Next, further down on the same page, the frequency range has to be defined. For 300 MHz this is: Note: The three DDS Sync Delay parameters are board specific delay line values that are determined to make sure that all three DDSs are synchronized and should not be changed! Next the dependencies and Polarities of the service pulses has to be defined.
Configuration Note: The preamp gates are not protection pulses. The preamps are self protecting using diodes, and the gate is required in order to ensure that low power pulses can pass the protection diodes. 7.4.1.2 Board Temperature Control The temperature sensitive parts (Master Oscillator, Receiver Gain Stages, Filters, etc) are all within a temperature controlled zone on the main board, which is thermally iso- lated with a blue foam cover.
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Configuration the embedded CPU. The PID settings can be adjusted using: Main-> minispec-> electronics temperature control A temperature setpoint of 1.0 is equivalent to about 40°C. It should be adjusted so that the heater power is between 30 and 50 %. when stable conditions are reached. Adjust the setpoint if necessary (lower value ->...
Configuration 7.4.1.3 On-Board Voltages The main board receives only 28Vdc from the central 28V PSU and generates all the other voltages it requires on board. You can test if all the voltages are correct under: Main-> minispec-> AD Controller 7.4.1.4 4.5.1.5 Pulse programmer memory Unlike the IPSO, the Fourier keeps its entire Pulse Program (incl.
Configuration 7.4.2 Shim Control Since shim control is a slave of the main board, the shim specific web server functions are found on the main board web server under: Main-> shim The Fourier has 20 coils for shimming. One Shim Control Board can handle 12 coils. Therefore we need two Shim Control Boards.
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Configuration Coil 1 On this page you can see the 12 coils which are controlled by the first Shim Control Board. The resolution of the DAC which set the current to the coils is 16 bits. 0x000 is the maximal negative current and 0xFFFF is the maximal positive current. This means the half 0x8000 is zero current.
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Configuration Note:if the current is close to zero, sometimes an error "insufficient current" is shown. If you are not sure if a shim is responding, set a larger current (> 100mA) temporarily and check that the error goes away. Write DAC-Values to FRAM: The DAC-Values will be saved to the onboard storage (non-volatile RAM) Read DAC-Values from FRAM: If you want to get the DAC-Values you have saved in the FRAM, you can choose this...
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Configuration Values” Get Dac values: This function fetches the active DAC-Values from the Shim Control Board controller to the Web page. Set DAC-Values to coils: This function sets the active DAC-Values in the Shim Control Board controller to all coils. Apply: This button will apply the function you have chosen with the checkboxes.
Configuration 7.4.3 GAB/2 Interface Since the GAB/ Backplane is a slave of the main board, the GAB specific web server functions are found on the main board web server under: Main-> minispec –> GAB/2 System In order for the GAB/2 Backplane main board to be recognized as a Fourier component, the following entries need to be made in NAME group part of the BIS EEPROM.
Configuration You can check the presence of the GAB/2 Backplane and the GAB/2 Gradient amplifier using: Main-> minispec –> GAB/2 System -> Base functions You can check is an LVDS link is present using Main-> minispec –> GAB/2 System -> GAB/2 Menu -> GAB/2 Control 7.4.4 Lock Board In order for the lock main board to be recognized as a Fourier component, the following...
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Configuration Main -> minispec -> BIS Settings The main information and setting page is found under: Main -> minispec -> Lock This page is divided in 4 parts: • properties for the pulse programmer • the current status of the lock signal •...
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Configuration Pulse length: This value describes the time for pulses. Default: 100 us Dead time: The dead time is the waiting time after the pulse before sampling begins. Default: 20 us Recycle delay: This value represents the repetition rate for the pulse programmer. Default: 1ms (i.e. 1 kHz repetition) Number of points: The number of data points averaged by the FPGA within the recycle delay.
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Configuration should be set such that weak solvents have sufficient signal to reach the minimum lock and search levels, and low enough not to clip or change phase with strong solvents. Default: 80 dB. Attenuator: This adjusts the lock power level. At full power (0dB attenuation) the lock power is approximately 1mW (0dBm).
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Configuration Field DAC Small: The Lock is controlled by two DACs. A 12-bit coarse DAC is used for range selection and a 12-bit fine DAC which does the actual field regulation. The resolution of the fine DAC is about 0.025 Hz per DAC Step. A DAC value 0 means maximal negative current and 4095 means maximal positive cur- rent.
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Configuration Moving Average: This is a moving average of lock monitor signal. The range is from 1 to 1000. There is no default as this value is set by EDLOCK. A value of 1 represents a bandwidth o 1000 Hz, and .
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Configuration I-Control ON: Enables the Integral part of the control loop (-> Operate +I). The fine DAC value will be the integral gain times the accumulated difference between the imaginary part of the sig- nal and zero. When the Lock is enabled from within TopSpin it always enables BOTH the proportional and integral gain ( ->...
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Configuration DAC-Value: Shows the current value of the Fine DAC. If the PI control is active, this is an indication of what the lock is actually doing. When the lock is stable, this value should be close to the centre of it operating region (ie. around 2000) and can vary by up to ±10 counts (each count represents 0.025 Hz).
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Configuration WideDAC too low Wide Coarse too High Wide DAC OK The sweep mode can also be used to check and adjust Lock Phase. Z31980_00_03...
Configuration Phase wrong Phase Correct 7.4.5 In order for VTU the lock main board to be recognized as a Fourier component, the fol- lowing entries need to be made in NAME group part of the BIS EEPROM. This is accessed via: Main ->...
Configuration This can be used to control the VTU independently of TopSpin, or to monitor its function. PID Parameters cannot be set here, this has to be done on a separate page (see below) 7.4.5.1 Changing PID parameters This is done under : Main ->...
Configuration Select this file with the browser press upload. Press start to save the values EEPROM VTU. This only takes a second and is completed when the following message appears: 7.4.5.2 Setting the Heater Protection Threshold In case the gas supply to the probe is missing, the heater switches off when the overheat sensor reaches the threshold safety limit.
Configuration 7.4.5.3 Calibrating the Thermocouple A 2 point correction (e.g. Ice water & Liquid N2) of the thermocouple reading can be done under: Main -> VTU -> Thermocouple 7.4.6 Peripheral Control Since peripheral control is a slave of the VTU, the specific web server functions are found on the VTU main board web server under: Main->...
Configuration 7.4.6.1 Setting the Lift Parameters When the sample lift is activated, the lift air valve is slowly opened from “start%” to “stop%” in steps of “step”, pausing “time” x 32ms at each step. Typical default values for an input pressure of 4 bar are shown in the example below. You can slow down the lift by increasing the time per step or reducing the step size.
Configuration 7.4.6.3 Setting the Spin Safety Threshold The spin has a safety function that shuts the spin off as soon as the Lift is turned on either manually or during the initialisation of the sample changer. In order to do this, the analog sensor that monitors the spinner has to be calibrated.
Configuration installation. Remove sample or activate the sample lift and note down the "empty" Spin Voltage. Now insert or lower the sample and switch the spin on (either from the BSMS panel or from the web server) Repeatedly read the Spin Voltage and note down the two values that can be read while the sample is spinning.
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Configuration To calibrate the Helium Level Sensor : Insert the “full” Level calibration standard Press “measure” Wait minimum for the required time (ee above) Press “get value” at the corresponding field. This shows the voltage acress the mea- surement resistor. For full, this should be zero volts (except for ECL 00 Peripheral Control Boards, in which case this value will be about 5).
Configuration For later boards*, this is not necessary and the setting should be: * in order to find out which version of board your system has, check the Firmware level of the Peripheral Control Board. V21 or lower is ECL00 and requires the calibration correc- tion;...
RF paths are working. These tests are based on the minispec software which is routinely installed with Fourier PCs. The minispec Fourier Test Applications are found under: C:\program files (x86)\Bruker the minispec\service_only\fourier test applications FID.app acquires an fid independently from topspin. Pulse length & frequency etc can be adjusted under "settings".
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Configuration Fourier modulator test.app Feeds the modulator signal back to the receiver and tests if a pulse is being generated. The measurement is repeated 20 times and should give stable intensity results. This can be done both for 1H and for the C13 channel. Select the right channel by changing the "observe nucleus"...
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Configuration Fourier modulator test.app Feeds a small amount of the transmitter signal back to the receiver and tests if a pulse is being amplified. You can see the difference to the modulator signal by the rise time at the beginning. The signal intensity should be similar, but due to the variations of compo- nents cannot really be used to accurately measure the power.
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Configuration Fourier wobble.app Since the "wobb" routine doesn't work with the Fourier, this app creates a similar wobble curve showing the resonance of the probe: Note: The wobble routine is not very accurate and is NOT intended for adjusting the tune and match on the probe.
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Configuration Fourier match.app Gives and indication of the reflected power at a given frequency: Note: The values on the scale are arbitrary and do not represent the reflected power in Z31980_00_03...
Any change on the Avance pulse program only takes effect on the experi- ment if the Fourier pulse program is changed as well. Bruker delivers a set of well tested pulse programs for the Fourier to cover the intended use of the Fourier spectrometer.
Pulse Programming Avance Fourier All channels Channel f1 Channel f12 p1 ph1 p1 ph1 p3:f2 ph3 p3 ph3 p16:gp1 p16:gp1 p2 ph2 p2 ph2 ..Table 8.1 Structure of Pulse Programs with the definitions “d13=p1” “d31=p3” “d36=p16” To calculate the right timing for p3 on channel f2, e.g., the Avance pulse programmer must evaluate all pulses on channel f1 as well in addition to all delays.
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Pulse Programming <Unit>ms</Unit> <VarType>7</VarType> <JcampKwd>##$D[1]</JcampKwd> </Duration> </DELAY> As can be seen, a tag <DELAY> defines that the following information is a delay. The tag </DELAY> closes the definition. Usually, there are sub-definitions as the physical unit for the delay,e.g. Again, there is an opening tag, the information content and a closing tag. The tag <JcampKwd>...
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Pulse Programming <Val>3</Val> </Phase> <Atten> <Unit>dB</Unit> <VarType>7</VarType> <JcampKwd>##$PL[1]</JcampKwd> </Atten> <Shape> <Unit>arb</Unit> <VarType>7</VarType> <Quantity>0</Quantity> </Shape> </HF_PULSE> The first tag defines the pulse duration. The next information is the phase cycle. The phase cycle is not defined at the end of the pulse program but is an integral part of the pulse definition.
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Pulse Programming <Unit>number</Unit> <VarType>4</VarType> <Quantity>1</Quantity> <Val>4</Val> </Direction> <Duration> <Unit>us</Unit> <VarType>7</VarType> <JcampKwd>##$P[16]</JcampKwd> </Duration> <Gain> <Unit>%</Unit> <VarType>7</VarType> <JcampKwd>##$GPZ[1]</JcampKwd> </Gain> <Shape> <Unit>arb</Unit> <VarType>7</VarType> <Quantity>0</Quantity> </Shape> </GRAD_PULSE> The gradient pulse is defined by its “direction”, i.e., if it is a y, y or z gradient. It has a duration, p16 in this case, and an amplitude or gain of gpz1.
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Pulse Programming <Phase> <Unit>quadrant</Unit> <VarType>0</VarType> <Quantity>4</Quantity> <Val>0</Val> <Val>2</Val> <Val>1</Val> <Val>3</Val> </Phase> <DataPoints> <Unit>points</Unit> <VarType>0</VarType> <JcampKwd>##$TD</JcampKwd> </DataPoints> </ACQ_MULTI> <RESETABS> switches to LO and starts the digitizer system. The timing of the acquisi- tion is defined by <ACQ_MULTI>. The acquisition duration is aq and it uses the phase cycle 0,2,1,3. TD data points are acquired.
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Pulse Programming </P_LOOP> Everything between the first and the second <P_LOOP> structure is repeated l4 times. Channel assignment: The complete 2 channel pulse program needs to know which pulses belong to which channel. Therefore, tags to define one complete channel are also necessary. The fre- quencies and transmitter paths for the channels are defined by edasp.
Do not operate the instrument without filter for prolonged times, since dirt will build up in the electronics. Repairs on the console should only be carried out by trained Bruker personnel. For probe and magnet maintenance, refer to the relevant manuals.
11 Cleaning and Disposal 11.1 Cleaning Do not use any detergent or other cleaning solvents. Use only water or neutral cleaning fluids. Usage of volatile cleaners like thinner or benzine may damage the surface of the unit. • Clean the outside of the device with a soft, lint-free cloth dampened in water. Notice: Wait until the unit is completely dry before you reconnect the power cable.
Cleaning and Disposal WARNING Danger of injury due to improper dismantling! Stored residual energy, angular components, points and edges on and in the device or on the tools needed can cause injuries. Ensure sufficient space before starting work. Handle exposed, sharp-edged components with care. ...
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Cleaning and Disposal NOTICE Danger to the environment from incorrect handling of pollutants! Incorrect handling of pollutants, particularly incorrect waste disposal, may cause seri- ous damage to the environment. Always observe the instructions below regarding handling and disposal of pollut- ants.
12 Technical Specifications Transmit Channels Frequency Range 5 – 405 MHz No of Channels Frequency Resolution 0.25 Hz No of Phases Timing Resolution 20 ns Transmit Power for 1H ca. 50 W Transmit Power for X Channel (13C, 15N) ca. 200W Power Level Adjustment 0 - 60 dB in 1dB steps Amplitude Variation...
Technical Specifications Lock System Lock Nucleus Lock Type digital P+I Lock Speed 1 kHz Lock Power -30dBm to 0 dBm in 1 dB steps Lock Resolution 0.025 Hz Lock Range 10 kHz Table 12.5 Lock System Peripheral Control Helium Level Sensor Sample Spin Control Sample Lift Control ATMA Control...
NMR Hotlines Contact our NMR service centers. Bruker BioSpin NMR provide dedicated hotlines and service centers, so that our special- ists can respond as quickly as possible to all your service requests, applications ques- tions, software or technical needs.
Hinweise, die dem Anwender die Arbeit erleichtern ..........111 Note Only trained Bruker personnel are allowed to mount, retrofit, repair, adjust and dis- mantle the unit! ...................... 13 The identification and placement of warning labels should be included in the manual.
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