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Table of Contents Contact ......................9 Introduction....................11 General Information....................11 Limitation of Liability ....................11 Customer Service....................11 Warranty......................... 11 Copyright ........................ 11 General View......................12 Safety......................15 Approved Persons....................15 Customer Responsibilities..................16 Key Words......................17 Residual Risks......................18 2.4.1 Persons ........................18 2.4.2 Intended Use ......................
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Table of Contents Operation......................39 Safety ........................39 Set into Operation....................40 Troubleshooting ..................41 Safety ........................41 Problem ........................42 6.2.1 During Transportation..................... 42 6.2.2 During Assembling ....................42 6.2.3 During Cool Down ....................44 6.2.4 During Energizing and Shimming ................48 6.2.5 During Operation of the Magnet Stand..............
Contact Manufacturer Bruker BioSpin AG Industriestrasse 26 CH-8117 Faellanden Switzerland Phone: + 41 44 825 91 11 Fax: + 41 44 825 96 96 http://www.bruker.com E-mail: service@bruker.ch Please refer to the Model No., Serial No. and Internal Order No. in all correspondence regarding the NMR system or components thereof.
• use of not approved spare parts or accessories. Customer Service Technical support is provided by Bruker Service via telephone or e-mail. For contact information see page 9 of this document. Warranty The warranty terms can be found in the sales documents of the magnet system and in the Terms and Conditions of Bruker BioSpin AG.
Introduction General View 1 Cryogenic Refrigerator Compressor (noise protection cover optionally) 2 Cryogenic Refrigerator Flex Lines 3 Rotary Valve (RV) covered by the Rotary Valve Column (RVC) 4 Connecting Line 5 Helium Flow System 6 Current lead turret 7 Cryogenic Refrigerator Cold Head 8 Helium Fill-in Turret with helium fill-in port 9 RT bore 10 RT vessel...
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Introduction The heart of the NMR magnet system is a superconducting magnet located inside the helium vessel, which is filled with liquid helium. The helium vessel is surrounded by a radiation shield (RS) both cooled by a Cryogenic Refrigerator. The outer casing, the room temperature (RT) vessel (10) contains the helium vessel and the radiation shield.
(including all necessary knowledge of applicable regulations and regulatory requirements) to perform specific tasks on the magnet system and its components. Bruker Service Personnel are qualified to identify possible hazards and risks and to perform all possible steps to eliminate or minimize these risks.
Safety Customer Responsibilities The customer must obey the security advice and the rules for safety, applicable local accident prevention and environmental protection correctly for the magnet system. Furthermore, the customer is responsible for keeping the magnet system in good technical condition. In particular: •...
Safety Key Words DANGER Indicates a hazardous situation which, if not prevented, will result in death or serious injury. WARNING Indicates a hazardous situation which, if not prevented, could result in death or serious injury. CAUTION Indicates a hazardous situation which, if not prevented, may result in moderate or minor injury.
Work must only be carried out by approved persons with applicable qualifications. The necessary qualifications are specified in the beginning of the relevant chapter. • In case of doubt, contact Bruker Service. Contact information see page 9 of this document. 2.4.2 Intended Use The supplied magnet systems is designed and intended for NMR spectroscopy only.
Safety 2.4.3 Safety Devices WARNING Risk of damage to life and limb due to not sufficient safety devices. Several safety devices ensure safe operation of the magnet system. They must always be in correct working condition. Thus: • Do not block safety devices. •...
Thus: • Maintain signs and labels in a readable state. • Replace damaged or not readable signs and labels immediately. New signs and labels can be ordered from Bruker Service. 2.4.6 Technical Risks Magnetic Field WARNING Risk of damage to life and limb due to high magnetic fields.
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Contact with the eyes may cause blindness. Refer to Warning: Low Temperature on page 23. Thus: • Only use cryogenic agents in well ventilated rooms. In case of doubt ask Bruker Service. • Wear an oxygen monitor on the body during service and maintenance work.
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The evaporating helium will displace the breathing air. In case of not sufficient ventilation this may result in death by suffocation. Thus • The magnet system site must be well ventilated. In case of doubt contact Bruker Service. • The evaporating gas may resemble smoke. Never pour water on the magnet system.
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Safety Low Temperatures WARNING Risk of injury due to low temperatures of liquids and metal parts. Physical contact with extremely cold liquids and metal parts may cause serious injuries. Contact with the skin may cause cold burns. Contact with the eyes may cause blindness.
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Safety Risk of Tilting WARNING Risk of injury due to tilting of the magnet system. The magnet system is very sensitive to lateral forces. It may tilt. Thus: • Do not climb onto the magnet system. • Do not lean items against the magnet system. •...
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Surfaces of the Cryogenic Refrigerator parts may be hot. Skin contact with these surfaces can cause serious injuries. Thus: • Any work at the Cryogenic Refrigerator parts must only be performed by Bruker Service. • Always wear protective gloves while handling Cryogenic Refrigerator parts.
Safety Personal Protective Equipment The personal protective equipment must be worn at any time while working on the magnet system and further equipment to prevent health hazards. Protective Goggles Used to protect the eyes from injury due to flying cold liquids and parts. Protective Gloves Used to protect the hands from injury caused by contact with extremely cold liquids or surfaces and for protection from injury caused by rough edges.
Safety Description of Signs and Labels Signs and labels are always related to their immediate vicinity. The following signs and labels are found on the magnet system and in the vicinity. Prohibition sign: No person with pacemakers! People with pacemakers are endangered in the identified area of 0.5 mT (5 Gauss) and are not allowed to enter these areas.
Safety Safety Devices The supplied cryostat of the magnet system is equipped with the following safety devices: 1 Quench Valves 2 Pressure Relief Valves of the cold head turret 3 Drop-off Plate Figure 2.1: Safety Devices of the RZ Cryostat ZTKS0157 / Z31921 / 00...
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Safety Quench Valve The quench valves (1) are the safety devices of the helium vessel. They open with a defined pressure. In case of an accidental overpressure in the helium vessel the quench valves will release the pressure smoothly. Pressure Relief Valve The pressure relief valve (2) is the safety device of the cold head turret.
Safety Behavior in Danger and Emergency Situations Preparations • Keep the emergency exits free at all times. • Prepare and maintain an up-to-date list of emergency telephone numbers in the magnet system area. In Case of Emergency • Leave the danger zone immediately. •...
Transportation Safety The transportation is carried out by Bruker Service or approved persons. However, it may happen that other persons have to receive the delivery of the shipping boxes. In this case it is essential to obey the instructions in this chapter and to inform these persons before.
• Contact Bruker Service before installation. The claim for damage expires after the fixed period. Thus: Report damages to Bruker Service immediately after detection of damage. For contact information see page 9 of this document. ZTKS0157 / Z31921 / 00...
Transportation Transportation by Fork Lift / Pallet Jack A fork lift is recommended for transporting the boxes to the installation site. Approved Persons: Approved forklift / pallet jack operator Precondition: The fork lift / pallet jack must be approved for the transportation weight (refer to the supplied Sales Information).
Transportation Transportation with a Crane A crane is recommended for lifting the cryostat out of the box. Approved Persons: Approved crane operator Precondition: The crane must be approved for the transportation weight (see chapter Appendix, Technical Data). Attachment Points Exclusively use the marked eyelets as attachment points for the lifting equipment.
Storage temperature: 5 - 40 °C. • Storage humidity: less than 50% @ 23 °C. Disposal For disposal after the life cycle please contact Bruker Service for further information. For contact information see page 9 of this document. ZTKS0157 / Z31921 / 00...
Operation Safety Approved Persons Bruker Service, Approved Customer Personnel WARNING Magnetic Fields (see page Cryogenic Agents (see page Electricity (see page Gas under Pressure (see page ZTKS0157 / Z31921 / 00...
Operation Set into Operation Mount the further equipment of the supplied magnet system respecting their manuals. Set the magnet stand into operation by switching the pneumatic controller to UP position. Figure 5.1: Start the Magnet Stand For any work at the magnet system like maintenance or refill of helium stop the magnet stand by switching the pneumatic controller to DOWN position.
Troubleshooting Troubleshooting must be performed only with approved qualification. In case of doubts or problems not specified in the following list contact Bruker Service immediately. For contact information see page 9 of this manual. Safety Approved Persons Bruker Service, Approved Customer Personnel...
6.2.2 During Assembling Indicator Possible reason Solution Ceiling height too Site does not meet Choose another site that Bruker Service low for assembling the required meets the required on magnet stand. conditions. conditions. Ceiling height too Site does not meet...
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For this work the bottom plate has to be removed. Check the suspension tubes of the helium vessel are not broken. Install the safety device for fall protection (not supplied). Contact Bruker Service for further information.
Troubleshooting 6.2.3 During Cool Down Indicator Possible reason Solution Precooling with Empty transporta- Refill or replace transport Bruker Service liquid nitrogen tion dewar. dewar. continue too slowly. Transfer pressure Increase transfer pressure Bruker Service too low. slightly. Transportation Check transportation dewar Bruker Service dewar is leaky;...
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Continued from page before Indicator Possible reason Solution • Do not remove pumping RT vessel becomes Vacuum is broken or Bruker Service unit until filling with liquid cold and wet. less than helium is finished. 1 x 10 mbar. •...
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Continued from page before Indicator Possible reason Solution Warm up the magnet coil Nitrogen ice in the Pumping intervals Bruker Service with warm helium gas helium vessel. during pumping and through the precooling flushing were too tube until the whole coil is long and remaining warmer than 90 K.
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Continued from page before Indicator Possible reason Solution The zero reading of The Helium Level Check the connection in the Bruker Service the Helium Level Sensor is not helium fill-in turret between Sensor can not be connected correctly Helium Level Sensor and...
During Energizing and Shimming Indicator Possible reason Solution The current lead can The connector is Carefully remove the ice with Bruker Service not be inserted covered with ice. warm helium gas. completely into the (frozen moisture or To remove small ice spots use connector.
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Continued from page before Indicator Possible reason Solution Shorting plug can The connector is Carefully remove the ice with Bruker Service not be removed. covered with ice warm helium gas. To remove (frozen moisture or small ice spots use the nitrogen ice).
Repeat shimming. 6.2.5 During Operation of the Magnet Stand In case of doubt contact Bruker Service and refer to the manual of the Magnet Stand Indicator Possible reason Solution The NMR spectrum The pneumatic...
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5 to 8 bar (70 to 112 psi). Personnel If the problem is still not Approved solved, contact Customer Bruker Service. Personnel The magnet system Switch of the pneumatic isola- Bruker Service is not leveled tors. Check the leveling of the correctly.
6.2.6 During Standard Operation Indicator Possible reason Solution The helium boil off The helium flow Contact Bruker Service imme- Approved decreases to zero. system is covered diately! Do not try to remove Customer with ice. ice of the helium flow system!
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Quench Loss of See ”After a Quench” on Approved superconductivity. page 78 Customer Contact Bruker Service Personnel immediately! Cold spots within the Alignment not Contact Bruker Service. Approved RT bore. correct. Customer...
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Display CMU Interface MICS Cooling MICS Com- Buzzer Message (Window, E-mail) JAC pressor Cooler function not optimal. Call Bruker blink bright bright bright bright bright bright bright Cooler function not optimal. Call Bruker blink bright bright bright bright bright bright bright Cooler function not optimal.
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Approved PT100-RS0 to CMU disconnected Customer out of range Personnel Cable 4 Pin Cryostat Replace cable Bruker Service to CMU defective Sensor defective Disable CMU Mag RS Bruker Service sensor in CMU Service GUI < T Cable 4 Pin Cryostat...
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Message (Window, E-mail) JAC pressor Cooler function not optimal. Check system status blink bright bright bright bright bright bright bright Cooler function not optimal. Call Bruker blink bright bright bright bright bright bright bright Cooler function not optimal. Call Bruker blink bright bright...
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Approved PT100 RS1 to BSMS Mag RS Customer out of range disconnected Personnel BSMS Mag RS cable Replace cable Bruker Service defective BSMS Mag RS Replace BSMS Mag RS Bruker Service defective Sensor defective Disable sensor in CMU Bruker Service Service GUI <...
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Troubleshooting Continued from page before Display CMU Interface MICS Cooling MICS Com- Buzzer Message (Window, E-mail) JAC pressor Helium measurement failed. Check system status blink bright bright bright bright bright bright bright Compressor off. Check compressor status blink bright blink bright bright bright bright bright Continued on next page ZTKS0157 / Z31921 / 00...
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Personnel Electronic failure Check helium log file Approved Customer Personnel Calibration missing Calibrate helium sensor in Bruker Service MICS GUI Cable from sensor to Replace cable Bruker Service console defective Helium sensor Replace helium sensor Bruker Service defective...
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Continued from page before Display CMU Interface MICS Cooling MICS Com- Buzzer Message (Window, E-mail) JAC pressor Compressor function not optimal. Call Bruker blink bright blink bright bright bright bright bright Cooling water temperature too high. Check chiller blink bright blink...
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Check connections Approved T, Cooling Water disconnected Customer out of range Personnel CCA cable or CCA Replace CCA cable or CCA Bruker Service defective > T Cooling water problem Check chiller loop Approved Cooling Water Customer Personnel Cable at CCA or CMU...
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Troubleshooting Continued from page before Display CMU Interface MICS Cooling MICS Com- Buzzer Message (Window, E-mail) JAC pressor Power failure. RZ system off bright bright bright bright bright Connection to JAC failed. Check system status bright bright bright bright bright Remarks: compressor switched off to avoid underpressure Connection to BSMS failed.
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JAC switch Personnel CMU cable Check CMU connections Approved disconnected Customer Personnel JAC power supply Replace cable Bruker Service cable defective CMU cable defective Replace cable Bruker Service JAC power supply Replace power supply Bruker Service defective JAC connection...
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Display CMU Interface MICS Cooling MICS Com- Buzzer Message (Window, E-mail) JAC pressor Heater power too high. Call Bruker blink bright bright bright bright bright bright bright Heater power too low. Call Bruker blink bright bright bright bright bright bright bright Cooler function not optimal.
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Sensor/Value Possible reason Solution Log files in MICS Heater power Pressure is below set Check for leaks in the helium Bruker Service above set value value flow system Pressure can not be Check for leaks in the helium Bruker Service...
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Display CMU Interface MICS Cooling MICS Com- Buzzer Message (Window, E-mail) JAC pressor Cooler off. Helium evaporating. Call Bruker Remarks: compressor switched blink bright bright bright bright bright bright bright off to avoid underpressure after 15 min Connection to CMU failed.
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Log files in MICS Pressure out of range Cable from pressure Check connections Approved sensor to CMU Customer disconnected Personnel Pressure sensor Replace pressure sensor Bruker Service defective CMU off CMU cable Check connections Approved disconnected Customer Personnel CMU cable defective...
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Customer Personnel Calibration missing Calibrate helium sensor in Bruker Service MICS GUI He-Level < 85 % Helium leak Refill helium. Call Bruker Approved Customer Personnel Cooling power too low. Check pressure values on Bruker Service compressor with specifications. Refer to ”During Operation of the...
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Troubleshooting Continued from page before Display CMU Interface MICS Cooling MICS Com- Buzzer Message (Window, E-mail) JAC pressor Helium level too low. Refill helium blink bright bright bright bright bright bright bright Continued on next page ZTKS0157 / Z31921 / 00...
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Troubleshooting Continued from page before Sensor/Value Possible reason Solution Log files in MICS He-Level < 40 % Helium leak Refill helium. Call Bruker Approved immediately. Customer Personnel Cooling power too low. Check pressure values on Bruker Service compressor with specifications. Refer to ”During Operation of the...
During De-energizing and Warming up Indicator Possible reason Solution The magnet system The helium level was Refill helium at least to the Bruker Service quenches during too low for minimum allowed level (see de-energizing. de-energizing. Appendix Technical Data). The Power Supply is Replace Power Supply.
Troubleshooting 6.2.8 During Operation of the Cryogenic Refrigerator In the case of a complete failure of the Cryogenic Refrigerator, the helium contained in the helium vessel will be sufficient to cool the magnet for at least 3 days. If solving the issue takes longer, it is necessary to refill helium at all time (refer to supplied Refilling Procedure).
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Connect motor cord, if necessary. Remount the noise protection cover. If the problem is still not Approved solved, contact Customer Bruker Service. Personnel Aeroquip® Tighten the Aeroquip® Bruker Service connectors of the connectors correctly. flex lines not cor- rectly tightened at the compressor.
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Troubleshooting Continued from page before Indicator Possible reason Solution Continue of: Aeroquip® Tighten the Aeroquip® Bruker Service Compressor is conectors of the flex connectors correctly. operating, but no lines tightened not pressure fluctuation correctly at the visible (needles at rotary valve.
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Customer schedule (see ”Maintenance Personnel Timetable” on page 84). If the problem is still not Approved solved, contact Customer Bruker Service. Personnel WARNING: Hot Surfaces Connecting line Tighten the Aeroquip® Bruker Service between rotary valve connectors correctly.
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Troubleshooting Continued from page before Indicator Possible reason Solution Continue of: Cold head Remount the cold head. Bruker Service Compressor is contaminated. Pump and flush the cold operating, cryogenic head. See chapter ”Proce- refrigeration not dure in case of Cryogenic sufficient.
Remove probe and shim system to prevent icing from the shim system. Start the refill with liquid helium as soon as possible after the quench (within one hour after the quench; refer to the supplied Refilling Procedure). Contact Bruker Service immediately. ZTKS0157 / Z31921 / 00...
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Troubleshooting If the quench occurs unattended or helium transfer was not possible within one hour after the quench, it is recommended to warm up the system to 90 K. ZTKS0157 / Z31921 / 00...
If the temperature of the radiation shield exceeds the set maximum allowed temperature, an alarm will warn the operator (audible from the BMU, visible at the display of the BMU and the console via MICS). Follow this procedure to fix the issue before contacting Bruker Service. Note: •...
After restarting the Cryogenic Refrigerator, at least two days are necessary to recover the previous state of the magnet system. If the temperature and helium boil off does not decrease in the next two days call Bruker Service. Figure 6.2:...
Maintenance Maintenance must be performed only with approved qualification. In case of doubt contact Bruker Service. For contact information see page 9 of this document. Safety Approved Persons Bruker Service, Approved Customer Personnel WARNING Magnetic Fields (see page Cryogenic Agents (see...
Refer to the supplied manual of the Cryogenic Refrig- erator. Contact Bruker Service if values are different. • Check the proper operation of the water cooling unit.
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Continued from page before Interval Device Work • Replace the rotary valve. Refer to 17.500 hours Cryogenic Bruker Service chapter ”Replacement of the (2 years) Refrigerator Rotary Valve and the Cold Head” on page 7-136. • Replace the adsorber of the compressor.
Appendix Warning Signs Danger Key Word and Symbol .................. 17 Warning Cryogenic Agents ..................21 Electricity ....................... 21 Gas under Pressure ..................22 Heavy Weights ....................24 Intended Use ....................18 Key Word and Symbol .................. 17 Low Temperatures ..................23 Magnetic Field ....................
Appendix Figures Figure 1.1: General view a Magnet System with Aeon /RZ Cryostat ..... 12 Figure 2.1: Safety Devices of the RZ Cryostat............28 Figure 3.1: Packaging (without surrounding panels)..........31 Figure 3.2: Transportation by forklift - front side ............ 33 Figure 3.3: Transportation by forklift - rear side .............
Appendix Glossary / Abbreviations Used term Description Any kind of package used to protect sensitive parts during transportation. Cryostat The collective of all parts providing a temperature of 4 K inside for the superconducting magnet. The cryostat also provides the safety devices and the access ports for the cryogenic agents and electricity.
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Appendix Abbreviations Description Automatic Cooling Device BSMS Bruker Smart Magnet control System BSVT Bruker Smart Variable Temperature System Compressor Control Adaptor Cryostat Monitoring Unit Graphical User Interface Java Controller MICS Magnet Information and Control System Nuclear Magnetic Resonance Radiation Shield Room Temperature;...
Technical Data MS 500‘89 Ascend Aeon Technical Data MS 500‘89 Ascend Aeon A.5.1 Technical Data Cryostat Environmental conditions Value Unit Minimum surrounding temperature °C Maximum surrounding temperature °C Maximum relative humidity up to 31 °C Maximum relative humidity between 31 °C and 40 °C 80-50 linear decreasing Table A.1:...
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Technical Data MS 500‘89 Ascend Aeon Dimensions Cryostat Front view Figure A.1: Dimension Cryostat - Front View ZTKS0157 / Z31921 / 00...
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Technical Data MS 500‘89 Ascend Aeon Dimensions Cryostat Value Unit 2660 Operational Ceiling Height D-RT Diameter RT Bore Tube Diameter RT vessel Diameter Bottom Plate 1360 Height Cryostat (bottom plate to top flange) 1809 Height Cryostat (minimum height for transportation) 1908 Height Cryostat (bottom plate to flow system) 1800...
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Technical Data MS 500‘89 Ascend Aeon Top view Figure A.2: Dimension Cryostat - Top View Dimensions Cryostat Value Unit W1 (Width side to side) 1476 W2 (Width front to back with RVC) 1448 W3 (Width side to side with RVC) 1556 1661 (Diameter magnet stand)
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Technical Data MS 500‘89 Ascend Aeon Fill Volume, Evaporation Rate and Hold Time Cryogenic Agents Value Unit Helium vessel total volume Helium refill volume Helium evaporation rate ml/h 3000 days Helium hold time with Cryogenic Refrigerator operating Helium hold time with Cryogenic Refrigerator not operating days (at minimum allowed helium level) Helium refill volume after Quench...
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Technical Data MS 500‘89 Ascend Aeon Helium Level Sensor The Helium Level Sensor is inserted in the helium fill-in turret. Helium Level Sensor Material No. Value Unit Level Sensor Type Z58114 1300/690 Overall length 1300 Active length Calibration 0 %, Calibration resistor Z28630 Ω...
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Technical Data MS 500‘89 Ascend Aeon Temperature Sensors The temperature sensors (PT 100 and IBT) will be used to monitor the temperature of the magnets during cooling and warming up of the magnet system. PT 100 Measure the resistance with a maximum current of 1 mA. Temperature Unit Resistance...
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Technical Data MS 500‘89 Ascend Aeon IBT Carbon Resistor Measure the Resistance with a maximum current of 0.1 mA. Temperature Unit Resistance Unit Room Temperature Ω Liquid Nitrogen Ω Ω Ω Ω Ω Ω Ω Liquid Helium Ω Table A.7: Characteristic Values IBT Figure A.6: Characteristic Curve IBT...
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Technical Data MS 500‘89 Ascend Aeon Wiring Diagramm Temperature Sensors (will be added after final design) View from outside Feedthrough Plate Figure A.7: Wiring Diagramm Temperature Sensors ZTKS0157 / Z31921 / 00...
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Technical Data MS 500‘89 Ascend Aeon A.5.3 Technical Data Magnet Technical Data Magnet Value Unit Proton frequency Central field 11.74 Coil inductance 42.94 Magnetic energy 736.6 Maximum drift rate 0.01 ppm/h Hz/h Table A.8: Specification of the Magnet Operating modes of the Magnet System: Driven Mode In the driven mode the current lead is mounted and the electricity is flowing through the power supply.
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Technical Data MS 500‘89 Ascend Aeon Fringe Field Plot Figure A.8: Fringe field plot Fringe Field Unit R max Unit Z max Unit 0.29 0.48 0.50 0.88 0.54 0.97 0.62 1.21 0.70 1.40 0.92 1.73 1.17 2.07 0.05 1.52 2.49 max magnetic field B0 at access point max field gradient dB/dz at access point Table A.9:...
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Technical Data MS 500‘89 Ascend Aeon Current Lead Figure A.9: Current Lead 55 pins ZTKS0157 / Z31921 / 00...
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Technical Data MS 500‘89 Ascend Aeon Wiring Diagram Magnet Control Figure A.11: Wiring Diagram Magnet - Control ZTKS0157 / Z31921 / 00...
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Technical Data MS 500‘89 Ascend Aeon Wiring Diagram Magnet Diagnostic and Temperature Sensors Figure A.12: Wiring Diagram Magnet - Diagnostic and Temperature Sensors ZTKS0157 / Z31921 / 00...
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Technical Data MS 500‘89 Ascend Aeon Shorting Plug The shorting plug is plugged after removal of the current lead. After inserting the shorting plug the current flows through the shorting plug and no longer through the current lead and the power supply. Figure A.13: Shorting Plug 55 pins 1 Shorting Plug Tool for fitting and removing the shorting plug 2 Shorting Plug...
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Technical Data MS 500‘89 Ascend Aeon This side is intentionally left blank. ZTKS0157 / Z31921 / 00...
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Technical Data MS 500‘89 Ascend Aeon Resistance at Room Temperature _ _ _´_ _ _´_ _ _´_ _ Connector Description Value Unit From: PIN V 19 PIN Con CONTROL Main Heater Ω PIN S 19 PIN Con CONTROL From: PIN D 19 PIN Con CONTROL Z Heater Ω...
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Check the "minimum helium level for energizing" (refer to Figure A.3, page 104) During energizing the Z shim heater must be permanently ON. Energizing Currents Sense voltage Remarks Bruker Test Site [mV] 4000 2000 1000 Overshoot (0.25 % of final current)
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Technical Data MS 500‘89 Ascend Aeon Magnetic Center _ _ _´_ _ _´_ _ _´_ _ Refer to Figure A.1, page 100. Magnetic Center Value Unit Magnet center from bottom flange M1 Magnet center from top flange M2 Table A.13: Magnetic Center Cycling Assignment and Shim Currents (recommended only for 500MHz and more)
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Technical Data MS 500‘89 Ascend Aeon Energizing Currents _ _ _´_ _ _´_ _ _´_ _ Energizing Currents Value Value Value Unit Bruker Test Customer Customer Site Site #1 Site #2 Magnet main current Z-Shim current -Shim current -Shim current X–Shim current...
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Technical Data MS 500‘89 Ascend Aeon Deenergizing Assignment and Currents _ _ _´_ _ _´_ _ _´_ _ Deenergizing Currents Sense voltage Remarks Bruker Test Site [mV] 1000 2000 through external diodes Total deenergizing time [min] Table A.16: Deenergizing Assignment and Currents...
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Technical Data MS 500‘89 Ascend Aeon This side is intentionally left blank. ZTKS0157 / Z31921 / 00...
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Technical Data MS 500‘89 Ascend Aeon Magnet System Report Helium level T RS Excess Pressure Date, Time Signature [mW] [mbar] ZTKS0157 / Z31921 / 00...
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Technical Data MS 500‘89 Ascend Aeon Magnet System Report Helium level T RS Excess Pressure Date, Time Signature [mW] [mbar] ZTKS0157 / Z31921 / 00...
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