Retsch Autofill 150 l Скачать руководство пользователя страница 14 | Manualshive

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Operating the Device

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Operating the Device

The Autofill 50 l/150 l vessel is a vacuum super-insulated pressure vessel made of 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

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Содержание Autofill 150 l

Страница 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 ...

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

Страница 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...

Страница 4: ...Notes on the manual 4 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

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

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

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