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ZTKS0168 / Z31960 / 05

Troubleshooting

6.3

Troubleshooting Work

6.3.1

After a Quench

Quench while in persistent mode:

Wait until helium stops evaporating and the quench valves are closed.

Wait until there is no helium vapor visible anywhere to make sure there is sufficient
oxygen in the room.

Check that the globes in the quench valves are in the correct position.

Remove probe and shim system to prevent formation of ice on the shim system.

Start the refill with liquid helium as soon as possible.

Contact Bruker Service immediately.

Figure 6.1: Magnet system during a quench

A quench is the very fast de-energizing of
the magnet by loss of its superconductivity.
The stored magnetic energy is converted
into heat, which promotes rapid evaporation
of large quantities of helium.

If a quench occurs contact Bruker Service
immediately.

WARNING

Cryogenic Agents (see

Содержание 300'89 Ascend

Страница 1: ...Version Innovation with Integrity 300 89 Ascend 05 User Manual NMR...

Страница 2: ...rks of their respective holders This manual was written by Renate Petry August 30 2018 Bruker Corporation Faellanden Switzerland ZTKS0168 Z31960 05 For further technical assistance on the NMR Magnet S...

Страница 3: ...ety Devices 16 2 4 4 Spare Parts 16 2 4 5 Signs and Labels 17 2 4 6 Technical Risks 17 2 5 Personal Protective Equipment 23 2 6 Description of Signs and Labels 24 2 7 Safety Devices 25 2 8 Behavior in...

Страница 4: ...Maintenance free Components 56 8 Disassembling 57 9 Technical Data MS 300 89 Ascend 59 9 1 Environmental Conditions 59 9 2 Identification Plate 59 9 3 Dimensions 60 9 3 1 Weights 60 9 3 2 Dimensions...

Страница 5: ...Currents 79 9 21 Current Lead 81 9 21 1 Wiring Diagram Magnet 82 9 21 2 Wiring Diagram Magnet Control and Shims 83 9 21 3 Wiring Diagram Magnet Diagnostic and Temperature Sensors 84 9 21 4 Shorting P...

Страница 6: ...6 ZTKS0168 Z31960 05 Table of Contents...

Страница 7: ...asse 26 CH 8117 Faellanden Switzerland Phone 41 44 825 91 11 Fax 41 44 825 96 96 http www bruker com E mail 2nd level support bbio bruker com Please refer to the Model No Serial No and Internal Order...

Страница 8: ...8 ZTKS0168 Z31960 05 Contact...

Страница 9: ...of the 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...

Страница 10: ...The isolators in the magnet stand absorb floor vibrations Different heights and isolators are available optionally The nitrogen turrets 4 connected with the nitrogen flow system 7 and the heat exchang...

Страница 11: ...nnel As a result 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...

Страница 12: ...ruction plates The customer has to ensure the intended use of the magnet system The customer has to inform the local fire brigade about the special risks of the magnet system and how to react in the e...

Страница 13: ...serious injury This signal word is limited to the most extreme situations This is the consequence of not following the warning 1 This is the safety condition This is the safety instruction WARNING WA...

Страница 14: ...safety condition This is a safety instruction SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS are used for control flow and shutdowns in the event of an error or emergency This is the consequence of not follo...

Страница 15: ...st 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 Co...

Страница 16: ...evices Do not remove safety devices Check the operational reliability of the safety devices before working on the magnet system WARNING Risk of injury and property damage from using incorrect or defec...

Страница 17: ...ealth Duration of exposure 8 h day above the limit of 200 mT can cause damage to health Ferromagnetic tools in the magnetic field are significantly hazardous Disks and electronic devices may be damage...

Страница 18: ...ic agents are extremely cold Contact with liquid or gaseous cryogenic agents will lead to cold burns Contact with the eyes may cause blindness Refer to Warning Low Temperature on page 20 Only use cryo...

Страница 19: ...tat and further equipment The helium or the nitrogen vessel of the cryostat may get sealed off due to ice formation inside the helium or the nitrogen turrets in case of non compliance with the instruc...

Страница 20: ...re sensitive components such as O rings from contact with liquid cryogenic agents WARNING Risk of injury from spontaneous ignition and explosion caused by liquid oxygen Pure oxygen condenses on extrem...

Страница 21: ...em on your own WARNING Risk of damage to life and limb caused by heavy weights Lifting heavy weights is life threatening due to falling or moving parts Do not stay or work under a lifted magnet system...

Страница 22: ...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 box Unpack shortly before as...

Страница 23: ...ntact with extremely cold liquids or surfaces and for protection from injury caused by rough edges Protective Clothes Used to protect the body from injury caused by contact with extremely cold liquids...

Страница 24: ...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...

Страница 25: ...he magnet system is equipped with the following safety devices Figure 2 1 Safety devices of the cryostat with 2 helium turrets 1 Drop off plate 2 One way valve of the nitrogen vessel 3 Safety valve of...

Страница 26: ...of an accidental overpressure in the nitrogen vessel the safety valve will release the pressure smoothly Drop off Plate The drop off plate 1 is a safety device of the RT vessel If the vacuum breaks t...

Страница 27: ...urns Help the injured persons to lie down comfortably in a warm room Loosen all clothing which could prevent blood circulation in the injured area Pour large quantities of warm water over the affected...

Страница 28: ...28 ZTKS0168 Z31960 05 Safety...

Страница 29: ...tions in this chapter and to inform these persons before 3 2 Packaging WARNING Heavy Weights see page 21 CAUTION Transportation see page 22 Figure 3 1 Packaging without surrounding panels The cryostat...

Страница 30: ...Shock Watch Tilt Watch on the boxes show if the boxes were kicked or tilted during transportation Checks Shock Watch Follow instructions on the label Tilt Watch Follow instructions on the label In ca...

Страница 31: ...view 1 Check the route of transport for the minimal 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 capac...

Страница 32: ...ed eyelets as attachment points for the lifting equipment 2 Use all eyelets for the lifting equipment Figure 3 5 Instruction label for lifting equipment 3 Follow the instructions on the label on top o...

Страница 33: ...in a closed dry and dust free room Store the boxes upright Do not tilt the boxes Do not unpack the supplied boxes Prevent mechanical vibrations to the boxes Storage temperature 5 40 C Storage humidit...

Страница 34: ...34 ZTKS0168 Z31960 05 Transportation...

Страница 35: ...35 ZTKS0168 Z31960 05 4 Assembling Approved Persons Bruker Service only...

Страница 36: ...36 ZTKS0168 Z31960 05 Assembling...

Страница 37: ...Z31960 05 5 Operation 5 1 Safety Approved Persons Bruker Service Approved Customer Personnel WARNING Magnetic Field see page 17 Cryogenic Agents see page 18 Electricity see page 18 Gas under Pressure...

Страница 38: ...ith a magnet stand with pneumatic isolators Set the magnet stand into operation by switching the pneumatic controller to UP position Figure 5 2 Stop the magnet stand For any work at the magnet system...

Страница 39: ...age 7 of this manual 6 1 Safety Only approved persons should perform the troubleshooting tasks They are outlined in this chapter Bruker Service Approved Customer Personnel Personal protective equipmen...

Страница 40: ...ess Approved Customer Personnel Indicator Possible reason Solution Performed by Ceiling height too low for assembling on magnet stand Site does not meet the required conditions Choose another site tha...

Страница 41: ...ve the drop off plate the reduction and sealing flanges the bottom plate a Bruker Service Defective pumping unit or pumping line Check pumping unit and pumping line A vacuum of at least 10 6 mbar must...

Страница 42: ...kly Transfer pressure too high Stop cooling Adjust correct transfer pressure Bruker Service Vacuum in RT vessel does not reach 5 x 10 5 mbar within 48 hours O rings are leaky Check and clean O rings a...

Страница 43: ...fully remove all liquid nitrogen using the precooling tube 3 Use the dipstick to check that the helium vessel is empty no liquid nitrogen or frozen nitrogen Bruker Service After some intervals of flus...

Страница 44: ...ck that the helium vessel is empty no liquid nitrogen or frozen nitrogen Bruker Service Transfer of liquid helium does not start The transportation dewar is empty Refill or replace transporta tion dew...

Страница 45: ...ret between Helium Level Sensor and connector Bruker Service The Helium Level Sensor is defective Check the Helium Level Sensor using the 0 calibration plug Bruker Service The helium level does not re...

Страница 46: ...it can be inserted correctly into the connector Bruker Service Main coil heater test fails Power supply defective Replace the power supply Bruker Service Connector or cables defective Clean connectors...

Страница 47: ...g for the warm helium gas to remove small ice spots from the connector Bruker Service The magnet system quenches Loss of superconductivity See After a Quench on page 54 Bruker Service The helium level...

Страница 48: ...wrong position Change the switch position Bruker Service Shims do not affect the NMR signal Shim heater current is not correct The shim switches are not opened Set the shim heater current to the speci...

Страница 49: ...es in loose S or U shapes Approved Customer Personnel If the problem is still not solved contact Bruker Service Approved Customer Personnel Magnet system is touching the magnet stand Check the level a...

Страница 50: ...is not level Stop the pneumatic isolators Check the level of the cryostat Bruker Service Defective leveling valve Replace leveling valve or isolator Bruker Service Defective membrane of an isolator Re...

Страница 51: ...e than 600 mm from the top of the helium turrets Bruker Service The helium boil off is too high The Helium Level Sensor is in service mode or has been used too often Switch off Helium Level Sen sor Re...

Страница 52: ...ut of MICS is false Helium Level Sensor defective Contact Bruker Service immediately Approved Customer Personnel Helium level at constant level no change during days Helium Level Sensor defective Cont...

Страница 53: ...cable to the current lead and to the Power Supply correctly Bruker Service The switch Main Coil OFF Shim Coil is not on the Shim Coil position Switch Main Coil OFF Shim Coil on the Shim Coil position...

Страница 54: ...the correct position 4 Remove probe and shim system to prevent formation of ice on the shim system 5 Start the refill with liquid helium as soon as possible 6 Contact Bruker Service immediately Figur...

Страница 55: ...Personal protective equipment Protective goggles Protective gloves Safety shoes 7 2 Cleaning Clean the RT vessel of the magnet system and the magnet stand with a dry or slightly damp cloth Only use w...

Страница 56: ...s case contact Bruker Service Approved Customer Personnel weekly Cryostat Check the nitrogen level Refill liquid nitrogen if necessary Follow the safety instructions of the supplied manual Refilling P...

Страница 57: ...57 ZTKS0168 Z31960 05 8 Disassembling Approved Persons Bruker Service only...

Страница 58: ...58 ZTKS0168 Z31960 05 Disassembling...

Страница 59: ...t System Identifier Type Magnet Identifier Serial Number Year of Construction Cryostat Identifier Specification Helium Vessel Specification Nitrogen Vessel Specification Vacuum Chamber Weight empty an...

Страница 60: ...g Operational weight completely filled with magnet stand 600 kg Weight magnet stand 105 kg Weight magnet stand ready for transportation including box 171 kg Weight magnet system empty ready for transp...

Страница 61: ...61 ZTKS0168 Z31960 05 Technical Data MS 300 89 Ascend 9 3 3 Dimensions Cryostat Front View Figure 9 1 Dimensions of the cryostat front view...

Страница 62: ...for transportation 1604 mm H3 Height Cryostat bottom plate to flow system 1763 mm S Height Magnet Stand floor to bottom plate 770 mm M1 Distance magnetic center to bottom flange calculated Refer to T...

Страница 63: ...Top View 1 Keep at least an additional free space of 1 5 m around the magnet system for service Figure 9 2 Dimensions of the cryostat top view Cryostat Dimensions Value Unit W1 1236 mm W2 1116 mm D3 1...

Страница 64: ...vessel 2 Safety valve of the nitrogen vessel 3 One way valve of the helium vessel 4 Quench valve Opening pressure mbar psi One way valve of the nitrogen vessel 10 0 15 Safety valve of the nitrogen ve...

Страница 65: ...ts display the nitrogen level see Figure 9 4 Nitrogen Level Sensor Material No Value Unit Level Sensor Type Z122404 12 1126 860 D325 Diameter 12 mm Overall length 1126 mm Active length 860 mm Table 9...

Страница 66: ...he helium fill in turret Helium Level Sensor Material No Value Unit Level Sensor Type Z58103 1500 874 D37X Overall length 1500 mm Active length 874 mm Calibration 0 Calibration resistor Z53168 violet...

Страница 67: ...t during cooling down and warming up the magnet system PT 100 Sensor Measure the resistance with a maximum current of 1 mA Temperature Unit Resistance Unit Room Temperature 293 K 107 8 273 K 100 0 250...

Страница 68: ...ith a maximum current of 0 1 mA Temperature Unit Resistance Unit Room Temperature 300 K 220 Liquid Nitrogen 77 K 265 40 K 300 20 K 350 10 K 420 8 K 450 6 K 500 5 K 540 Liquid Helium 4 2 K 575 Table 9...

Страница 69: ...and deenergized Persistent Mode In the persistent mode the current flows exclusively within the magnet The circuit has no connection to the outside The magnetic field cannot be switched off Technical...

Страница 70: ...0 mT 0 36 m 0 68 m 3 0 mT 0 39 m 0 75 m 1 0 mT 0 48 m 0 94 m 0 5 5 Gauss mT 0 55 m 1 10 m 0 2 mT 0 72 m 1 37 m 0 1 mT 0 91 m 1 64 m 0 05 mT 1 17 m 1 98 m max magnetic field B0 at access point 110 mT...

Страница 71: ...600 l Helium needed for cool down 400 l Helium needed for energizing cryo shimming and quench reserve 300 l Table 9 13 Cryogenic agents consumption during installation Cryogenic Agents Value Unit Nit...

Страница 72: ..._ _ _ _ _ _ _ 9 11 Nitrogen Level Graph Figure 9 9 Nitrogen level graph PP OLWUHV WRS RI 1 YHVVHO PLQLPXP DOORZHG OHYHO RI QLWURJHQ OHYHO VHQVRU RI QLWURJHQ OHYHO VHQVRU T h i s p a g e w i l l b e r...

Страница 73: ..._ _ 9 12 Helium Level Graph Figure 9 10 Helium level graph PP OLWUHV WRS RI KHOLXP YHVVHO PLQLPXP OHYHO GXULQJ HQHUJL LQJ PLQLPXP DOORZHG OHYHO WRS RI FRLO RI KHOLXP OHYHO VHQVRU T h i s p a g e w i...

Страница 74: ...PIN Con SHIM Shim Coils From To PIN C D E F PIN S 10 PIN Con SHIM 19 PIN Con CONTROL Shim Coil to Heater common From To PIN T High current Con 19 PIN Con CONTROL High Current to Sense From To High cur...

Страница 75: ...ts Value Unit Main heater current mA Shim heater current mA Table 9 16 Heater currents Shim Switch Heater Operation Z0 not detected Z1 automatic Z2 permanent Z3 automatic X automatic Y automatic XZ au...

Страница 76: ...0 to 89 96 2500 89 96 to 105 83 500 105 83 to 111 69 200 Overshoot 0 35 of final current 111 69 to 112 08 50 10 minutes break at overshoot current 112 08 to 111 69 50 Total energizing time min 47 Rate...

Страница 77: ...from bottom flange MCB mm Shimsystem Offset SO see Figure 9 11 and refer to the supplied Test Protocol AST mm Table 9 19 Magnetic center Figure 9 11 Magnetic center and shimsystem offset SO MC Magneti...

Страница 78: ...ts Value Unit Shim current rate A min Z1 Shim current A Z2 Shim current A Z3 Shim current A X Shim current A Y Shim current A XZ Shim current A YZ Shim current A XY Shim current A X2 Y2 Shim current A...

Страница 79: ...current A XZ Shim current A YZ Shim current A XY Shim current A X2 Y2 Shim current A Shimsystem Offset design value Refer to the supplied Test Protocol AST mm Shimsystem Offset Customer Site value mm...

Страница 80: ...80 ZTKS0168 Z31960 05 Technical Data MS 300 89 Ascend This page is intentionally left blank T h i s p a g e w i l l b e r e p l a c e d b y s p e c i f i c t e c h n i c a l d a t a...

Страница 81: ...81 ZTKS0168 Z31960 05 Technical Data MS 300 89 Ascend 9 21 Current Lead Figure 9 12 Current lead 55 pin...

Страница 82: ...82 ZTKS0168 Z31960 05 Technical Data MS 300 89 Ascend 9 21 1 Wiring Diagram Magnet Figure 9 13 Wiring diagram magnet...

Страница 83: ...83 ZTKS0168 Z31960 05 Technical Data MS 300 89 Ascend 9 21 2 Wiring Diagram Magnet Control and Shims Figure 9 14 Wiring diagram magnet control and shims...

Страница 84: ...84 ZTKS0168 Z31960 05 Technical Data MS 300 89 Ascend 9 21 3 Wiring Diagram Magnet Diagnostic and Temperature Sensors Figure 9 15 Wiring diagram magnet diagnostic and temperature sensors...

Страница 85: ...moval 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 1 Shorting Plug Tool for fitting and...

Страница 86: ...86 ZTKS0168 Z31960 05 Technical Data MS 300 89 Ascend 9 22 Nitrogen Refill Report Nitrogen level before refill Nitrogen level after refill Refill Volume l Date Time Signature...

Страница 87: ...87 ZTKS0168 Z31960 05 Technical Data MS 300 89 Ascend Table continued Nitrogen level before refill Nitrogen level after refill Refill Volume l Date Time Signature...

Страница 88: ...88 ZTKS0168 Z31960 05 Technical Data MS 300 89 Ascend 9 23 Helium Refill Report Helium level before refill Helium level after refill Refill Volume l Date Time Signature...

Страница 89: ...89 ZTKS0168 Z31960 05 Technical Data MS 300 89 Ascend Table continued Helium level before refill Helium level after refill Refill Volume l Date Time Signature...

Страница 90: ...90 ZTKS0168 Z31960 05 Technical Data MS 300 89 Ascend...

Страница 91: ...avy Weights 21 Intended Use 15 Key Word and Symbol 13 Low Temperatures 20 Magnetic Field 17 Persons 15 Quench 19 Safety Devices 16 Signs and Labels 17 Slippage 20 Spare Parts 16 Spontaneous Ignition a...

Страница 92: ...92 ZTKS0168 Z31960 05 Warning Signs...

Страница 93: ...ch 54 Figure 9 1 Dimensions of the cryostat front view 61 Figure 9 2 Dimensions of the cryostat top view 63 Figure 9 3 Safety valves of the cryostat 64 Figure 9 4 Nitrogen level sensor 65 Figure 9 5 H...

Страница 94: ...94 ZTKS0168 Z31960 05 List of Figures...

Страница 95: ...nsor 65 Table 9 8 Helium level sensor 66 Table 9 9 Characteristic values of PT 100 sensor 67 Table 9 10 Characteristic values of IBT carbon sensor 68 Table 9 11 Specification of the magnet 69 Table 9...

Страница 96: ...96 ZTKS0168 Z31960 05 List of Tables...

Страница 97: ...arbon Resistor 68 Identification Plate 59 Intended Use 15 L Liability 9 Low Temperatures 20 M Magnetic Center 77 Magnetic Field 17 N Nitrogen Level Graph 72 O One way Valves 26 P Persistent Mode 69 Po...

Страница 98: ...98 ZTKS0168 Z31960 05 Index...

Страница 99: ...pdate including nitrogen level sensor 02 September 2012 Update and released fringe field date and related directives 03 February 2013 Update Magnetic Center 04 June 2013 New layout front and rear page...

Страница 100: ...Bruker Corporation info bruker com www bruker com Order No Z31960...

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