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Version

Innovation with Integrity

EPR 12T
Cryogen Free

User Manual

EPR Spectroscopy

Summary of Contents for EPR 12T Cryogen Free

Page 1: ...Version Innovation with Integrity EPR 12T Cryogen Free 01 User Manual EPR Spectroscopy ...

Page 2: ...their respective holders This manual was written by Renate Petry August 13 2014 Bruker Corporation Faellanden Switzerland ZTKS0213 Z31939 Rev 01 For further technical assistance on the EPR 12T Cryogen Free Cryogen Free magnet system please do not hesitate to contact your nearest BRUKER dealer or contact us directly at BRUKER BioSpin GmbH Silberstreifen 4 D 76287 Rheinstetten Germany Phone 49 721 5...

Page 3: ...y Devices 19 2 9 Behavior During Dangerous and Emergency Situations 20 2 10 Fire Department Notification 20 3 Transportation 21 3 1 Safety 21 3 2 Packaging 22 3 3 Transportation Inspection 22 3 4 Transportation by Forklift Pallet Jack 23 3 5 Storage 24 4 Assembling 25 5 Operation 27 5 1 Safety 27 5 2 Evacuating the Cryostat 28 5 2 1 General View 28 5 2 2 Mounting the Vacuum Valve at the Evacuated ...

Page 4: ...nd Deenergizing in Main Mode 45 5 7 3 Energizing and Deenergizing in Sweep Mode 47 6 Troubleshooting 49 6 1 Safety 49 6 2 Problems 50 6 3 Solutions 51 7 Maintenance 53 8 Disassembling 55 A Appendix 57 A 1 Warning Signs 57 A 2 Figures 59 A 3 Tables 61 A 4 Glossary Abbreviations 63 A 5 Technical Data 65 A 5 1 Components 65 A 5 2 Dimensions 65 A 5 3 Cryostat Dimensions 66 A 5 4 Specifications 68 A 5 ...

Page 5: ...ilberstreifen 4 D 76287 Rheinstetten Germany Phone 49 721 5161 0 Fax 49 721 5171 01 Email epr bruker biospin de http www bruker com Please refer to the model no serial no and internal order no in all correspondence regarding the EPR magnet system or components thereof ...

Page 6: ...6 ZTKS0213 Z31939 Rev 01 Contact ...

Page 7: ...mation in this manual will take into account the current state of technology The manufacturer assumes no liability for damages resulting from non compliance with the instructions and all applicable documentation use for purposes not intended not sufficiently approved persons arbitrary changes or modifications and use of unauthorized spare parts or accessories 1 3 Warranty The warranty terms can be...

Page 8: ... via telephone or e mail For contact information see page 5 of this document 1 6 General View Figure 1 1 Overview of the EPR magnet system 1 EPR 12T Cryogen Free Magnet System 2 Bruker Cryogen Free Controller BCFC 3 Power Supply E700 1083 4 Cryogenic refrigerator consisting of cryocooler compressor and flex lines ...

Page 9: ...t of professional training by Bruker Service Personnel experience and knowledge of applicable regulations these persons are qualified to perform the specific tasks on the magnet system and its components assigned to them in this manual Approved Customer Personnel are qualified to identify possible hazards and risks associated with the tasks assigned to them and to perform all possible steps to eli...

Page 10: ...ire brigade about the special risks of the magnet system The customer must clearly define the responsibilities for operation and maintenance The customer must ensure that all employees working with the magnet system have read and understood the manual The customer has to consider the specific conditions of operation of this cryogen free cryostat equipped with a cryogenic refrigerator The customer ...

Page 11: ...tion of symbol and signal word indicates a potentially hazardous situation 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 SAFETY INSTRUCTIONS This combination of color and signal words are used for control flow and shutdowns in the ev...

Page 12: ...ications are specified at the beginning of the relevant chapters In case of doubt contact Bruker Service Contact information see page 5 of this document WARNING Risk of damage to life and limb by incorrect use of the magnet system Incorrect use of the magnet system can lead to life threatening situations and destruction of the magnet system Thus Only use the magnet system as intended Do not change...

Page 13: ...and limb due to high magnetic fields A magnetic field of more than 0 5 mT 5 Gauss is life threatening for people with pacemakers or metal implants Ferromagnetic tools in the magnetic field are significantly hazardous Disks and electronic devices may be damaged Duration of exposure 8 h day above the limit of 200 mT can cause damage to health Thus Do not use ferromagnetic tools or items within the i...

Page 14: ...urn must be connected disconnected only when the magnet system is warmed up Inspect the flexible gas lines and pay regard to visible damage Respect detailed instructions on assembling disassembling given in the manual of the cryogenic refrigerator WARNING Risk of damage to live and limb during inserting and removing the VTI and or the sample holder Metallic items in close vicinity of the magnet sy...

Page 15: ... is sensitive to lateral forces It may tilt Thus Do not climb onto the magnet system Do not lean items against the magnet system Do not lean against the magnet system Do not move the magnet system on your own WARNING Risk of damage to life and limb caused from moving heavy weights Lifting heavy weights is life threatening due to falling or moving parts Thus Do not stay or work under lifted boxes A...

Page 16: ...while moving Move the boxes in an upright position Do not tilt the boxes Prevent crossing thresholds even if they are only a few millimeters high Clean the transportation way before moving the boxes Unpack shortly before assembling The cryostat or further equipment must be protected from rain and other bad weather conditions during transportation Exclusively move the cryostat in its original box D...

Page 17: ...allowed to enter these areas Prohibition sign No watches or electronic devices Watches and electronic devices may be damaged in the identified area of 0 5 mT 5 Gauss Prohibition sign No credit cards or other magnetic memory Credit cards and magnetic memory may be damaged in the identified area of 0 5 mT 5 Gauss Prohibition sign Do not touch Do not block Do not touch or block the identified area WA...

Page 18: ...Hazard warning sign Strong magnetic field No magnetic storage devices No jewelry No metallic items Emergency exit Always keep the emergency exit clear Follow the arrows if necessary Emergency exit doors must open in direction of escape ...

Page 19: ...ill release the pressure smoothly Power Supply The security of the system and of the operator depend on safety devices integrated in the power supply which must be kept connected to the magnet system WARNING Risk of damage to life and limb due to not sufficient safety devices Several safety devices and safety valves ensure safe operation They must always be in correct working condition Thus Do not...

Page 20: ...er zone immediately Rescue persons from the danger zone Start first aid immediately Call the responsible contact Call for medical assistance Call the fire department 2 10 Fire Department Notification Inform the fire department about the potential risks of a magnet system i e danger of ferromagnetic rescue equipment close to the magnet system Laboratory windows which are accessible during an emerge...

Page 21: ... happen that not approved persons have to take the delivery of the transport boxes In this case the customer has to inform these persons about requirements for transpor tation given in this chapter In case of doubt contact Bruker Service WARNING Heavy Weights see page 15 Risk of Tilting see page 15 CAUTION Incorrect Transportation see page 16 ...

Page 22: ...t box and the magnet system concerning visible damage and completeness In case of damage Accept the delivery with reservation Make a note of the extent of damage in the transportation documents Start the complaint process Contact the manufacturer before installation Figure 3 1 Packaging The magnet system is packed in a transport box It is secured inside with tightening straps against tilting and m...

Page 23: ...oved for the transportation weight see Weights on page 65 The claim for damage expires after the fixed period NOTICE Property damage caused by vibrations during transportation The crossing of thresholds with a forklift or a pallet jack may damage or destroy the magnet system Thus Prevent crossing thresholds even if they are a few millimeters only Do not tilt the forklift or the pallet jack during ...

Page 24: ...temperature 5 40 C Storage humidity less than 50 23 C Figure 3 2 Transportation by forklift pallet jack 1 Check the route of transport for the minimum height and width 2 Check sufficient floor capacity on the route of transport In case of doubt ask a stress analyst 3 Check sufficient carrying capacity while using an elevator 4 Position the forks between the bars of the transport box as shown in th...

Page 25: ...25 ZTKS0213 Z31939 Rev 01 4 Assembling Approved persons Bruker Service only ...

Page 26: ...26 ZTKS0213 Z31939 Rev 01 Assembling ...

Page 27: ...27 ZTKS0213 Z31939 Rev 01 5 Operation 5 1 Safety WARNING Magnetic Field see page 13 Electricity see page 13 Safety Devices see page 19 ...

Page 28: ...m A turbomolecular pump pumping speed 80 l s N2 is required to evacuate the cryostat Do not use a diffusion pump Figure 5 1 Vacuum valve assembly 1 Valve operator body 2 KF 40 flange for the pumping line 3 Two half rings with Allen screws M6 x 12 4 Valve stem Tilting of the vacuum valve damages the O ring of the vacuum valve Thus pay attention to the orientation of the axis during insertion of the...

Page 29: ...Magnet system deenergized Magnet system at 300 K Procedure Figure 5 2 Vacuum valve mounted at the magnet system 1 Cryocooler noise protection hood 2 Vacuum valve 3 Top plate 4 Pumping line Figure 5 3 Removing the earthing cable 1 Remove the earthing cable 1 2 Remove the protective cap 2 from the top plate 3 ...

Page 30: ...fix the valve operator body 5 to the cryostat NOTICE The sealing plug can not be moved until a correct vacuum was applied at the KF 40 flange of the vacuum valve 4 Turn the vacuum valve in the desired position The KF 40 flange should be looking outwards allowing an easy connection of the pumping line 5 Place the two half rings 3 6 Fix the half rings 3 using four Allen screws M6 x 12 4 ...

Page 31: ... 1 The sealing plug 3 snaps into place The snapping is well defined and will be heard and felt The cryostat is open after this procedure 4 Continue generating vacuum of better than 1 x 10 4 mbar up to 2 3 hours 5 Start cool down procedure see section Cooling Down on page 39 6 When the system has reached base temper ature push the valve stem 4 slightly into the valve operator body 2 to insert the s...

Page 32: ... the pumping line at the KF 40 flange 7 3 Release the valve stem 6 from the sealing plug 2 and pull out the valve stem 4 Remove the four M6 x 12 screws 4 from the half rings 3 5 Remove the half rings 3 and remove the vacuum valve Figure 5 7 Mounting the earthing cable 6 Mount the protective cap on the top plate 7 Mount the earthing cable ...

Page 33: ...sor status The detailed description of their functionality can be found in the compressor manual To operate the magnet system it is necessary to have all four green indicators active ON If any of them is inactive OFF refer to the compressor manual for information Warming up functionality For service of the cryocooler it is necessary to have the magnet system at room temperature To warm up the magn...

Page 34: ... see Appendix Table A 8 and Figure A 3 on page 68 There is a connector for an additional indicator on the rear panel of the BCFC in case an external indicator needs to be installed for enhanced visibility Emergency Quench and Status Indicators In case of emergency e g fire it may be necessary to quench the magnet intentionally and to eliminate the hazardous magnetic fringe field The quench can be ...

Page 35: ...T QUENCH button has been pushed and the magnet is going to quench The red indicator 3 AC INPUT POWER FAILURE displays whether AC power is supplied to the BCFC As it has an internal UPS it will keep on working for some residual time After this time the BCFC is completely inactive Restore AC power quickly The yellow indicator 4 REPLACE BATTERY lights up if the battery of the UPS needs to be replaced...

Page 36: ...erconductor with the heating power proportional to the charging rate To avoid quenching the magnet the charging rate is therefore limited and the temperature of the main coil is monitored with two sensors on the display of the power supply Persons in charge Approved customer personnel Bruker Service Precondition After system cool down the magnet must be kept below 3 5 K for at least 4 hours before...

Page 37: ...l of the power supply E700 1083 The DISPLAY Shim mode is not relevant for the EPR 12T Cryogen Free magnet as cryo shims are not implemented a In the DISPLAY MAIN mode the main current of the main coil the voltage and the set values are displayed b In the DISPLAY PT100 mode the temperature of the superconducting current lead is monitored c In the DISPLAY HEATER current mode the main heater current ...

Page 38: ...t an INPUT ERROR message a Set the maximum current rate according to Magnet Parameters on page 70 while the magnet system is in main mode 1 Press RATE 2 Press MAIN 3 Enter Main Coil Current Rate 4 Press SET to validate the entry b Set the maximum voltage rate according to Magnet Parameters on page 70 while the magnet system is in main mode 1 Press RATE 2 Press VLT 3 Enter Main Coil Voltage Rate 4 ...

Page 39: ...layed on the BCFC see Remote Compressor Status Display on page 33 The four indicators of the compressor temperature okay gas pressure okay input power running must be active green Use the DISPLAY CERNOX mode of the power supply to monitor the temperature of the main coil Cool down procedure from room temperature to base temperature takes up to 96 h When the system has reached base temperature clos...

Page 40: ...ve and dis connect the pump see section Rebuilding Vacuum on page 31 5 6 Operation of the BCFC 5 6 1 Compressor Status Check Precondition System is set up as described in section Assembling on page 25 Compressor is running Procedure Check the compressor status on the front panel of the BCFC The four green LEDs have to be ON and indicate that If any of the LEDs is OFF refer to the compressor manual...

Page 41: ...GGERED on the BCFC must turn ON Both Cernox temperatures on the power supply will rise to reach 8 K after a few minutes If any of those actions will not occur refer to section Troubleshooting on page 49 After the test unlock the red emergency button by turning it in clockwise direction The cryocooler should start immediately the red indicator TRIGGERED on the BCFC will switch off and the temperatu...

Page 42: ...t according to section Energizing and Deenergizing in Main Mode on page 45 Watch the field indicator The indicator must become active ON before the magnet reaches 1 T 10 Amps If the indicator remains inactive OFF refer to the troubleshooting section of this manual see Troubleshooting on page 49 Figure 5 16 Energizing the magnet and checking the indicator Do not operate the magnet system with a def...

Page 43: ...magnet quench button 2 Check that the rhythmic noise of the compressor stops and the red indicator TRIGGERED is ON 3 Wait until the magnetic field indicator is turned OFF It can take up to a few minutes until the magnetic fringe field has disappeared after pushing the emergency button MAGNET QUENCH Figure 5 17 Quenching the magnet in an emergency case ...

Page 44: ...page 40 2 Activate the switch WARM UP MAGNET This switch is activated if the indicator within the switch is active If both preconditions are fulfilled the heater is being activated Only exception AC power failure It takes up to 2 days for warming up the system The heater is being deactivated if the magnet is at 300 K 3 Deactivate the WARM UP MAGNET switch Check if the indicator within the switch i...

Page 45: ... ters on page 70 Perform the following steps to change the field Select the main mode see Selecting the Operation Mode on page 45 Limit the maximum voltage to 0 05 V 1 Press VLT 2 Enter value 0 05 3 Press SET to validate the entry Drive the current in the current leads to the actual current in the main coil 1 Press CUR 2 Press MAIN 3 Enter value Actual Main Current in Amperes 4 Press SET to valida...

Page 46: ... Press VLT 2 Press 0 05 3 Press SET to validate the entry Close the main switch 1 Press MAIN HEATER 2 Press 0 to stop heating the main switch 3 Press SET to validate the entry 4 Wait for 4 minutes Drive the current in the leads to zero 1 Press CUR 2 Press MAIN 3 Enter 0 4 Press SET to validate the entry The value Max Voltage in Volts cannot exceed the value U main level defined in Power Supply Par...

Page 47: ...nter Sweep Current Rate in Amperes Minute 4 Press SET to validate the entry Energize deenergize the sweep coil to the desired current value 1 Press CUR 2 Press SWEEP 3 Enter Sweep current in amperes 4 Press SET to validate the entry The sweep current is changed to the new current The value of the Sweep Current Rate in Ampere Minute cannot exceed the Sweep rate fast defined in Power Supply Paramete...

Page 48: ...48 ZTKS0213 Z31939 Rev 01 Operation ...

Page 49: ...ecified in the following list contact Bruker Service immediately see page 5 of this document for contact information 6 1 Safety Persons Bruker Service approved customer personnel see page 9 WARNING Magnetic Fields see page 13 Gas under Pressure see page 15 Power Supply see page 19 ...

Page 50: ...e C Customer Energizing or deenergizing the magnet not possible Heater current for switch heater is too low D Bruker Service Switch heater damaged E Bruker Service EPR signal disappeared due to continuous magnet deenergizing Sense voltage 0 V due to opening of superconducting switch F Customer Magnetic field indicator OFF Indicator module not properly inserted G Customer Magnet quench due to compr...

Page 51: ...s been cooled down from room temperature C 1 Press PRT to change the local remote mode 2 Enter value 0 to activate the local mode 3 Press SET to validate D Set value for the heater current see Power Supply Parameters on page 71 E System repair by Bruker required F 1 Deenergize the magnet system to 0 T 2 Wait until the base temperature is reached 3 Energize the magnet G Insert module properly H 1 R...

Page 52: ...n the power supply 3 Read and write down the base temperature see Base Temperature Report Monthly on page 74 4 Send all information from the base temperature report to Bruker Service L 1 Deenergize the magnet 2 Activate the warm up switch M none N Replace UPS battery O Contact Bruker Service for contact information see page 5 Table 6 3 Solution keys part 2 ...

Page 53: ...ibility Record the base temperature of the magnet system refer to Appendix Table A 13 on page 74 once per month Approved customer personnel Record elapsed time of the compressor once per month Approved customer personnel Cleaning air cooler at least once per year Approved customer personnel Check the emergency button MAGNET QUENCH at zero field once per year Approved customer personnel Replace col...

Page 54: ...54 ZTKS0213 Z31939 Rev 01 Maintenance ...

Page 55: ...55 ZTKS0213 Z31939 Rev 01 8 Disassembling Approved persons Bruker Service only ...

Page 56: ...56 ZTKS0213 Z31939 Rev 01 Disassembling ...

Page 57: ... 13 High magnetic fields 13 Incorrect use of the magnet system 12 Inserting and removing the VTI 14 Key Word and Symbol 11 Risk of injury due to gas under pressure 15 Risk of tilting 15 Caution Cryogenic refrigerator 14 Incorrect transportation 16 Key Word and Symbol 11 Notice Key Word and Symbol 11 Magnet quench button 35 Vibration during transportation 23 Safety Instructions Key Word and Symbol ...

Page 58: ...58 ZTKS0213 Z31939 Rev 01 Warning Signs ...

Page 59: ...Controller BCFC Rear View 35 Figure 5 10 Magnet quench indicators on the BCFC front panel 35 Figure 5 11 Front panel of the power supply E700 1083 37 Figure 5 12 Front panel of the compressor unit F 50H water cooled 39 Figure 5 13 Front panel of the compressor CNA 61 air cooled 40 Figure 5 14 Display of the compressor status on the BCFC front panel 40 Figure 5 15 Emergency button MAGNET QUENCH on ...

Page 60: ...60 ZTKS0213 Z31939 Rev 01 List of Figures ...

Page 61: ...ront view 67 Table A 5 Dimensions of the cryostat top view 67 Table A 6 Position of the magnetic center 68 Table A 7 Fringe field of the EPR 12T magnet system at maximum field 69 Table A 8 Specification of the EPR magnet system 69 Table A 9 Magnet parameters of the main coil and of the sweep coil 70 Table A 10 Power supply installation parameters part 1 71 Table A 11 Power supply installation para...

Page 62: ...62 ZTKS0213 Z31939 Rev 01 List of Tables ...

Page 63: ... safety devices and the access ports for electricity The superconducting magnet inside the cryostat is not energized Magnet System The collective of all parts necessary for the intended use The superconducting magnet inside the cryostat is energized Table A 1 Glossary Abbreviations Description BCFC Bruker Cryogen Free Controller CF Cryogen Free EPR Electron Paramagnetic Resonance RT Room Temperatu...

Page 64: ...64 ZTKS0213 Z31939 Rev 01 Glossary ...

Page 65: ...frigerator consists of 4K Cold Head Compressor Unit RDK 415D F 50H water cooled CNA 61 air cooled Bruker Cryogen Free Controller BCFC Power Supply E700 1083 Table A 1 Components of the EPR 12T magnet system Value Unit Magnet system 480 kg Table A 2 Weight of the magnet system Value Unit Height 1942 mm Width 596 mm Depth 1193 mm Table A 3 Dimensions for transportation of the magnet system ...

Page 66: ...66 ZTKS0213 Z31939 Rev 01 Technical Data EPR 12T Cryogen Free A 5 3 Cryostat Dimensions Figure A 1 Dimensions of the cryostat front view ...

Page 67: ...r 795 mm D RT RT bore diameter 80 mm M1 Distance magnetic center bottom plate calculated 715 mm M2 Distance magnetic center top flange 497 mm C Ceiling height recommended for operation 2500 mm S Height of pillars 100 mm Table A 4 Dimensions of the cryostat front view Figure A 2 Dimensions of the cryostat top view Cryostat Dimensions Value Unit W1 940 mm W2 795 mm Table A 5 Dimensions of the cryost...

Page 68: ...A 5 4 Specifications Scale division is 0 5 m Figure A 3 Fringe field plot of the EPR 12T magnet system Position Distance Magnetic center distance above floor level 814 05 mm Magnetic center distance from top flange 497 mm Table A 6 Position of the magnetic center ...

Page 69: ...ield of the EPR 12T magnet system at maximum field Description Value Unit Homogeneity in 10 mm DSV DSV diameter of spherical volume 10 ppm Energizing time to 12 T 100 min Field stability Persistent Mode 1 day after energizing 2 ppm day Radial fringe field horizontal distance of the 0 5 mT 5 G line from the magnetic center 3 4 m Axial fringe field vertical distance of the 0 5 mT 5 G line from the m...

Page 70: ...gnet Parameters Description Value Unit Main Coil Main current magnetic field _____ A T Main coil current rate 60 A min Main coil voltage rate 5 V min Sweep Coil Sweep current magnetic field _____ A T Table A 9 Magnet parameters of the main coil and of the sweep coil ...

Page 71: ...esents a unique hardware assignment and components thereof must not be changed arbitrarily EPR 12T Cryogen Free Serial No ____ Position Explanation Command Unit Value 0 Enter service code COD COD 1 Memory shim SHM 2 Init shim mem RSH 3 Heater detection DET 4 PS values to default RSP 5 Shim off time PA1 PA1 s 5 6 Shim on time PA2 PA2 s 5 7 Shim cur according ht X PA3 PA3 A 0 8 Shim cur according ht...

Page 72: ...R A 100 25 Shim max rate SMR SMR A min 5 26 Shim heater current SHC SHC mA 30 27 Quench heater current QHC QHC mA 0 28 Quench heater ON time QHT QHT s 1 29 Enable quench heater button EQH EQH 0 30 Temp level 1 for PT100 TP1 TP1 K 300 31 Temp level 2 for PT100 TP2 TP2 K 300 32 Cernox S1 R1 C11 C11 Ω ____ 33 Cernox S1 R2 C12 C12 Ω ____ 34 Cernox S1 R3 C13 C13 Ω ____ 35 Cernox S1 R4 C14 C14 Ω ____ 36...

Page 73: ...A Q1a Q1a K 300 46 Tc1 70 A C1b C1b K 300 47 Tq1 70 A Q1b Q1b K 300 48 Tc1 90 A C1c C1c K 300 49 Tq1 90 A Q1c Q1c K 300 50 Tc1 110 A C1d C1d K 300 51 Tq1 110 A Q1d Q1d K 300 52 Tc2 50 A C2a C2a K 300 53 Tq2 50 A Q2a Q2a K 300 54 Tc2 70 A C2b C2b K 300 55 Tq2 70 A Q2b Q2b K 300 56 Tc2 90 A C2c C2c K 300 57 Tq2 90 A Q2c Q2c K 300 58 Tc2 110 A C2d C2d K 300 59 Tq2 110 A Q2d Q2d K 300 60 Set serial nu...

Page 74: ... 12T Cryogen Free A 5 6 Base Temperature Report Monthly continued Refer to section First Steps on page 37 Date Temperature Sensor S1 K Temperature Sensor S2 K Compressor Elapsed Time h Remarks Signature Table A 13 Base temperature report monthly ...

Page 75: ...ev 01 Technical Data EPR 12T Cryogen Free Refer to section First Steps on page 37 Date Temperature Sensor S1 K Temperature Sensor S2 K Compressor Elapsed Time h Remarks Signature Table A 14 Base temperature report monthly ...

Page 76: ...hnical Manual Power Supply BSCPS MON 1 5 150C5 E700 1083 LV160 W119018 technical pdf W119018 Description of Cryo Power Supply E700 1083 cryo PS E700_1083 pdf RDK 415D 4 K Cold Head Technical Instruction for service personnel only Manual_RDK415 pdf Manual Number CD32ZZ 070J F 50H Compressor Unit Technical Instruction for service personnel only Technical_Instruction_F50H pdf Manual Number CD32ZZ 226...

Page 77: ...Free 36 Evacuating the Cryostat 28 F Fire Department 20 G Glossary 63 H Height Ceiling Height 67 Height Cryostat 67 I Intended Use 12 Interlocks 51 L Liability 7 M Magnetic Field 13 Hazard from Magnetic Field 43 Indicator 34 Main Current Magnetic Field 70 Maintenance Schedule 53 Manufacturer Bruker BioSpin 5 P Para Menu Power Supply Parameters 71 Parameters Magnet Parameters 70 Main Coil 70 Main C...

Page 78: ...nsions for Trans portation 65 Troubleshooting Problems 50 Solutions 51 U UPS Uninterruptible Power Supply 34 V Vacuum Valve 29 Mounting the Vacuum Valve 29 Rebuilding Vacuum 31 VTI Variable Temperature Insert 14 W Warming up Procedure 44 Warm up Magnet Switch 44 Warranty 7 Weights Magnet System 65 ...

Page 79: ...Free User Manual Revision History List Index Date Alteration Type 00 April 2011 First release 01 August 2014 Updated work flow for cool down to base temperature Added position of magnetic center Implemented new directives on fringe field data ...

Page 80: ...Bruker Corporation info bruker com www bruker com Order No Z31939 ...

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Summary of Contents for EPR 12T Cryogen Free

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