Retsch Autofill 150 l Manual Download Page 1 | Manualshive

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© Retsch GmbH, 42781 Haan, Retsch-Allee 1-5, Germany | 26.04.2022 Version 0002

Manual

Manual

Liquid nitrogen tank Autofill 50 l/150 l

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Summary of Contents for Autofill 150 l

Page 1: ... Retsch GmbH 42781 Haan Retsch Allee 1 5 Germany 26 04 2022 Version 0002 Manual Manual Liquid nitrogen tank Autofill 50 l 150 l Translation ...

Page 2: ...2 Copyright Copyright by Retsch GmbH Retsch Allee 1 5 42781 Haan Germany ...

Page 3: ...s through contact 11 2 4 3 Recommendations 11 2 4 4 General rules of conduct for splashes with liquid nitrogen 12 2 4 4 1 To the eyes 12 2 4 4 2 On the skin 12 2 5 Danger of explosion 12 2 5 1 Dangers 12 2 5 2 Causes 12 2 5 3 Recommendations 12 2 5 4 General conduct in the case of an accident 12 2 6 Oxygen enrichment 13 2 6 1 Dangers 13 2 6 2 Causes 13 2 6 3 Recommendations 13 2 7 Surrounding area...

Page 4: ...Notes on the manual 4 ...

Page 5: ...nts are only permitted with the express permission of Retsch GmbH Infringements will result in damage compensation liability 1 1 Explanations of the Safety Instructions The following warnings in this manual warn of possible risks and damage WARNING W1 0000 Type of danger personal injury Source of danger Possible consequences if the dangers are not observed Instructions and information on how the d...

Page 6: ... handled for the intended purpose and attention is given to this technical documentation You as the owner managing operator of the machine must ensure that the people entrusted with working on the machine have noted and understood all the regulations regarding safety are familiar before starting work with all the operating instructions and specifications for the target group relevant for them have...

Page 7: ...ing manual contains essential instructions for operating and maintaining the device which must be strictly observed It is essential that they be read by the operator and by the qualified staff responsible for the device before the device is commissioned This operating manual must be available and accessible at the place of use at all times The user of the device herewith confirms to the managing o...

Page 8: ... or operator Surname first name block letters Position in the company Place date and signature Bestätigung 1 5 Type Plate Description Fig 1 Type plate marking 1 Instrument name 2 Year of manufacture 3 Article number 4 Serial number 5 Manufacturer s address 6 CE marking 7 Waste disposal marking 8 Barcode When making enquiries please quote the name of the instrument 1 or the article number 3 and ser...

Page 9: ...H rules out any liability claims that may arise in the use of liquid nitrogen or similar cooling agents Please observe the safety regulations of the cooling liquid supplier 2 1 General This section summarises the general occupational health and safety guidelines for the handling of liquid nitrogen CAUTION Handling liquid nitrogen General hazardous situations The following hazardous situations may ...

Page 10: ...possible to provide precise and generally applicable information on the symptoms of an oxygen deficiency Example under normal conditions 20 C 1013 mbars 1 l liquid nitrogen evaporates to produce 680 l nitrogen gas 2 3 2 Causes An oxygen deficiency may arise during the following work or in the following conditions Nitrogen as liquid or gas Natural evaporation of liquid nitrogen Refilling of liquid ...

Page 11: ...he human body make specific materials metal and plastic that are not suitable for low temperatures brittle generate strong misting depending on atmospheric humidity 2 4 2 Causes There are two types of cryogenic burns 2 4 2 1 Burns through splashes When handling samples and in general when handling liquid nitrogen personnel must protect themselves from splashes They can cause cryogenic burns with s...

Page 12: ...the neck and on the insulating lid This list is not complete 2 5 3 Recommendations To avoid the danger of explosion Always use suitable insulating lids pay attention to waste gas opening Observe filling levels to avoid the formation of ice on the insulating lid Set up the vessel in dry and roofed rooms Monitor atmospheric humidity in the installation room Check vessel regularly for the collection ...

Page 13: ...move all sources of fire naked flame and light spark producers matches lighters etc Ventilate installation rooms constantly and appropriately Clean floor regularly Train personnel Wear personal protective equipment Check oxygen content constantly Always carry an oxygen metre This list is not complete 2 7 Surrounding area of the machine 2 7 1 Rooms The room in which the machine is located must perm...

Page 14: ...f corrosion resistant stainless steel for storing refrigerated liquid nitrogen in conformance to the European Pressure Equipment Directive 97 23 EG Category I module A with CE marking 3 1 Views of the device Fig 2 Front view Autofill 50 l Fig 3 Rear view Autofill 50 l V1 PSV CSV DM FA V3 V2 FA CSV PSV ZF V3 VV DM V1 V2 ZF KS KS ...

Page 15: ...d nitrogen CSV Overflow valve Safety valve for the feed line to the CryoMill DM Pressure indicator Gas pressure display PSV Dewar flask pressure relief valve Safety valve 1 3 bar of the Dewar flask KS Quick release clamp Sealing and attachment of the siphon to the Dewar flask VV Vacuum closure and safety device Sealing of high vacuum in the intermediate hollow space ZF Withdrawal hose Liquid nitro...

Page 16: ... day Operating pressure max 1 3 bar max 1 3 bar 3 4 Vacuum closure and safety device Fig 3 Vacuum closure and safety device WARNING The vacuum closure and the safety device protect the vacuum space from positive pressure Only the manufacturer s qualified staff may conduct the re evacuation CAUTION The protective cap 2 retains the valve insert 1 if excessive pressure builds up in the vacuum space D...

Page 17: ... content Alternatively you can also determine the filling level by using a dipstick and compare it with the filling level curve see graphic filling level curve Fig 2 Filling level indicator Autofill 150 l Determination of the tank filling level of Autofill 150 l Read the filling level of the Autofill 150 l on the digital filling level indicator Alternatively you can also determine the filling leve...

Page 18: ...Operating the Device 18 Fig 5 Filling level curve ...

Page 19: ...e device Incorrect filling of the tank Foreign particles or humidity and thus the formation of ice crystals may block the pipes and valves of the cooling system and cause malfunctions Do not remove the lever HE when filling Adhere to the specified order when filling the tank Close all valves V1 V2 V3 Remove the transfer hose ZF from the connector SA Connect the filling pipe to the connector SA Ope...

Page 20: ...and withdrawal valve V1 After taking the liquid close the filling and withdrawal valve V1 again 3 9 Pressure relief Close the pressure build up valve V2 Open the waste gas valve V3 3 10 Transport CAUTION Risks of liquid or gaseous nitrogen Positive pressure in the vessel The introduction of energy during transport can cause a sudden surge in pressure Nitrogen is blown off then and this can cause a...

Page 21: ...dy indicate damage to the sealing ring KD CAUTION Always discharge pressure before replacing the sealing ring Close the pressure build up valve V2 Carefully open the vent valve V3 It is impermissible to use the following agents and tools pliers striking tools lubricating spray hemp open flame steam leak detection spray suds Only the bubble method outlined below may be used to test that the safety ...

Page 22: ...ssure is used for the test Do not conduct the tests with oxygen or inflammable or corrosive gases 3 13 Checking the seat tightness Increase the test pressure to 90 of the response pressure The valve must remain leak tight 3 14 Checking the response pressure Slowly increase the test pressure to 100 The safety valve blows off The response pressure can deviate from the nominal level by 10 ...

Page 23: ...ressure 16 Operating the device 14 Outside diameter 16 Overall height 16 Overall width 16 Overview table of the parts of the device 15 Oxygen deficiency 10 Oxygen enrichment 13 P Positive pressure 16 Pressure build up 20 Pressure gauge 20 Pressure relief 20 Prohibited agents 21 Prohibited tools 21 R Rear view 14 Recommendations 10 11 12 13 Re evacuation 16 Repair 7 Response pressure 22 Rooms 13 Ru...

Page 24: ...Index 24 Waste disposal marking 8 Weight empty 16 Weight full 16 Withdrawal of liquid nitrogen 20 Y Year of manufacture 8 ...

Page 25: ...Copyright Copyright by Retsch GmbH Retsch Allee 1 5 42781 Haan Germany ...

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