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6 Operation

25

K-355

Operation Manual, Version G

solution. The volume of the added sodium hydroxide solution is measured on the scale behind the
sample tube. The added volume selected must produce a clear shift in color to brown or blue.

NOTE

After distillation or after

“

STOP“, the last distillation time can be recalled by pressing

“

START“ or will

automatically be recalled when exchanging the sample tube.

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Summary of Contents for K-355

Page 1: ...K 355 Operation Manual 93036 en Distillation Unit ...

Page 2: ......

Page 3: ...5 2 Electrical connections 19 5 3 Reagent and water connections 20 5 3 1 Cooling water connection 20 5 3 2 Drainage of cooling water 20 5 3 3 Storage tank connection 21 Read this manual carefully before installing and running your system and note the safety precautions in chapter 2 in particular Store the manual in the immediate vicinity of the instrument so that it can be consulted at any time No...

Page 4: ...ning the glass parts 26 7 1 4 Preparing the instrument for a standstill overnight 27 7 2 Weekly maintenance 27 7 2 1 Cleaning the splash protector and the rubber bung seal 27 7 3 Monthly maintenance 27 7 3 1 Checking the distillate amount 27 7 4 Half yearly maintenance 28 7 4 1 Replacing the NaOH tube 28 7 5 Yearly maintenance 28 7 5 1 Replacing the rubber bung seal 28 7 5 2 Replacing the NaOH pum...

Page 5: ...operation and to maintain it in good working order It is addressed to laboratory personnel in particular NOTE The symbols pertaining to safety WARNINGS and ATTENTIONS are explained in chapter 2 1 1 Abbreviations EPDM Ethylene Propylene Dimonomer FEP Fluorinated Ethylene Propylene FPM Fluoroelastomer PP Polypropylene PTFE Polytetrafluoroethylene RSD Relative Standard Deviation ...

Page 6: ...erience have an overview of the dangers which can develop when operating the instrument Personnel without this training or persons who are currently being trained require careful instruction The present Operation Manual serves as the basis for this 2 2 Proper use The instrument has been designed and built for laboratories It serves for the distillation of steam vola tile substances 2 3 Improper us...

Page 7: ...the instrument is used carelessly or improperly The manufacturer has determined residual dangers emanating from the instrument if the instrument is operated by insufficiently trained personnel if the instrument is not operated according to its proper use Appropriate warnings in this manual serve to make the user alert to these residual dangers 2 5 1 Instrument related hazards Pay attention to the ...

Page 8: ...rking in its immediate proximity 2 5 4 Safety elements The instrument is provided with the following safety elements Protective door Safety appliance to protect users from burns at the splash protector distillation area which is hot during distillation Protective door sensor Prevents the start of a distillation with the protective door open and stops a running distillation and the dosing of reagen...

Page 9: ...n proper condition only and that maintenance service and repair jobs are performed with care and on schedule and by autho rized personnel only Spare parts to be used Use only genuine consumables and genuine spare parts for maintenance to assure good system performance and reliability Any modifications to the spare parts used are only allowed with the prior written permission of the manufacturer Mo...

Page 10: ...o the order number NOTE For detailed information on the listed products see www buchi com or contact your local dealer 3 1 1 Standard instrument Table 3 1 Standard instrument Product Order number Distillation Unit K 355 Standard with glass splash protector 230 V 50 60 Hz 43505 Distillation Unit K 355 with splash protector made of fiber glass reinforced polypropylene 230 V 50 60 Hz 43419 Distillati...

Page 11: ...se cooling water drain silicone L 1 8 m Ø 10 14 mm 43439 d 1 hose chemical supply solaflex L 3 5 Ø 10 5 mm 43555 e 1 hose tygon L 530 mm 43029 f 3 suction tubes to tanks FEP L 580 mm 43407 g 1 hose connector PP 43565 h 1 Y hose coupling 11043 i 2 clamps Ø 7 6 43571 i 6 clamps Ø 11 9 43841 j 1 hose viton acid resistant L 2 m 20344 k 1 cooling water hose complete G L 1 5 m 37780 12 13 14 15 l 3 tank...

Page 12: ... Order number a 1 sample tube 500 ml 4 sample tubes 500 ml 26128 43982 b 4 sample tubes 300 ml 37377 c Condenser cover complete 43484 4 5 d 20 l tank for chemicals 43469 e 10 l tank for chemicals 43468 6 7 f Holder for 4 sample tubes 500 ml 16951 g Holder for 6 sample tubes 300 ml 43039 8 h Holder for 12 sample tubes 300 ml 43041 ...

Page 13: ...Manual Version G Table 3 3 Optional accessories K 355 cont Product Order number Splash protector for Devarda method K 350 K 355 K 360 K 370 43335 Constricted distillate outlet tube Ø 5 mm 43096 Sample tubes graduated 300 ml set of 4 43049 ...

Page 14: ...3 Technical data 14 K 355 Operation Manual Version G Table 3 3 Optional accessories K 355 cont Product Order number Universal adapter for K 350 K 355 K 360 K 370 43115 SO2 accessory 48680 ...

Page 15: ...m maximum relative humidity 80 for temperatures up to 31 C decreasing linearly to 67 relative humidity at 35 C Installation category II Pollution degree 2 Dimensions W x H x D 400 x 660 x 360 mm Weight 17 kg 3 3 Materials used Table 3 5 Materials used for the K 355 Component Material designation Material code Housing Polyurethane PUR UL V0 Glass parts Borosilicate glass 3 3 DIN ISO 3585 Steam gene...

Page 16: ...chapter explains the basic principle of the instrument shows how it is structured and gives a functional description of the assemblies 4 1 Instrument overview 3 1 2 4 5 6 a Splash protector b Sample tube c Protective door d Condenser e Operating panel f Service door Fig 4 1 Instrument overview ...

Page 17: ...tions of steam volatile substances e g of alcohol SO2 volatile acids 1 2 3 4 5 a Sample tube b Splash protector c Condenser d Distillate outlet tube e Receiving vessel with receiver solution Fig 4 2 Function principle Steam is introduced into the sample solution in sample tube a to drive out volatile components such as ammonia alcohol etc After condensation in condenser c the condensate is collect...

Page 18: ...tillation or the addition of reagent b TIME display c STEAM power display d START Starts a distillation e TIME Sets time in min sec f UP Increases time and steam up g STEAM Sets steam power h DOWN Decreases time and steam down i REAGENT Button that adds reagent e g water sodium hydroxide solution Fig 4 3 Controls of the instrument ...

Page 19: ... instrument not higher and not more than 1 m lower ATTENTION To ensure the instrument safety do not place any object on top of it ATTENTION For safety reasons make sure that the distance between the instrument and another object or a wall is at least 30 cm ATTENTION For safety reasons do not place any containers chemicals or other instruments behind the instru ment 5 2 Electrical connections Fig 5...

Page 20: ...ming no overpressure is necessary at the tanks 5 3 1 Cooling water connection Secure the cooling water hose with a hose clamp on both the instrument and the water connection side The water pressure should be at a maximum of 4 bar The built in valve reduces the water flow to 1 2 liters per minute The flanged screw coupling for the water connection has a standard screw thread of G 5 3 2 Drainage of ...

Page 21: ...s at the instrument side and secure them with the clamps The H2 O storage tank may be used to feed both the steam generator pump as well as the sample tube pump For this purpose the Y hose coupling can be used Fig 5 3 Tank connection All pumps are self priming no overpressure is necessary at the tanks ATTENTION To ensure proper system functioning consider the following Use only distilled water for...

Page 22: ...tic dosage The reagent volume dosed before the distillation is started is stored e g in one of the nine different programs or as default value This volume can be recalled after distillation or a program containing the required volume can be recalled The stored volume is dosed by pressing REAGENT shortly After releasing the switch the volume is dosed automatically 6 1 3 General information The reag...

Page 23: ... 4 Program storage The program storage function can be used optionally Up to 9 programs can be stored In addition the last used program is stored 6 4 1 Storing a program To store a program proceed as follows Select a program with UP and DOWN The steam display shows P and the program number The program settings are shown after releasing the UP DOWN button Press STEAM and set the steam power by pres...

Page 24: ...th distilled water when it is used for the additon of strong acids 6 7 Carrying out a distillation To carry out a distillation proceed as follows Switch on the instrument and wait until the steam generator is ready Insert the sample tube containing the sample Prepare a conical flask or a similar receptacle with a volume of about 250 ml as receiving vessel If required select suitable chemicals in a...

Page 25: ...solution is measured on the scale behind the sample tube The added volume selected must produce a clear shift in color to brown or blue NOTE After distillation or after STOP the last distillation time can be recalled by pressing START or will automatically be recalled when exchanging the sample tube ...

Page 26: ...ing the instrument Check the instrument for proper operation after any repair work 7 1 Daily maintenance 7 1 1 Cleaning the instrument from inside To ensure proper instrument functioning regular cleaning is vital Thus the generation of caustic substances within the instrument and the degradation of glassware is avoided To clean the inside of the instrument distill 100 ml of distilled water for a p...

Page 27: ...fterwards dry it with a soft cloth remount it and put the splash protector back in place ATTENTION When removing and reinstalling the seal make sure not to damage it Always move it perpendicularly to the axis of the glass parts and ensure no damage occurs to the sealing lip Never apply grease to the seal and never touch it with sharp objects otherwise it will get damaged 7 3 Monthly maintenance 7 ...

Page 28: ... to replace the NaOH pump once a year The other pumps need to be replaced as and when required 7 6 Customer service Only authorised service personnel are allowed to perform repair work on the instrument These persons have a comprehensive technical training and knowledge of possible dangers which might arise from the instrument Addresses of official Buchi customer service offices are given on the B...

Page 29: ...ple tube missing Insert a sample tube E 40 Steam generator overheat Switch off the instrument immediately and contact the Buchi customer service E 40 E 47 Electronic problem Contact the Buchi customer service E 50 E 56 Steam generator problem Water feeding problem Control the water volume in the tank Control the tube connections E 61 Cooling water flow too low 0 5 l min for 30 seconds Increase the...

Page 30: ...ct the power cord WARNING The steam generator gets very hot during operation Danger of being burned Always let the steam generator cool down for at least 30 minutes after having switched it off before handling it Open the service door Attach an appropriate silicone tube to the drain cock Place a receiving vessel with a volume of 500 ml below the end of the tube Slowly open the stop cock with a scr...

Page 31: ... 6 7 8 9 10 Table 10 1 Spare parts K 355 Product Order number a Set of clamps Ø 7 6 Ø 11 9 Ø 9 6 Ø 10 7 Ø 12 8 5 pieces each 43586 b SVL 22 screw cap 03577 c SVL 22 sealing 02073 d Outlet tube for distillate PTFE 43569 e Set of hose connectors bent EPDM sealing 4 pieces 43129 f Set of hose connectors straight FPM sealing 4 pieces 40296 g Set of sealings FPM 10 pieces 40040 h Gasket complete splash...

Page 32: ...p for 20 l tanks large 1 piece 43478 10 2 Hosing connection scheme 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 a Inlet b NaOH tank c H2 O tank d Acid tank e Valve cooling water in f Pump NaOH g Pump H2 O steam generator h Pump special i Cooler j Receiving vessel k Splash protector l Check valve m Ventilation n Valve steam o Output Fig 10 1 Hosing connection scheme ...

Page 33: ...n tube Ø 7 4 L 120 16 43572 1 Viton tube Ø 7 4 L 1200 17 43574 1 Viton tube Ø 10 7 L 190 18 43578 1 Viton tube Ø 10 7 L 380 19 43574 1 Viton tube Ø 10 7 L 190 20 43574 1 Viton tube Ø 10 7 L 190 21 43574 1 Viton tube Ø 10 7 L 190 22 43439 1 Silicone tube Ø 14 10 L 1800 23 37780 1 Cooling water tube complete L 1500 101 43139 3 Connectors GL 14 bent EPDM 102 27738 11 Hose clamps Ø 9 6 black 103 43202...

Page 34: ...ul interference in which case the user will be required to correct the interference at his own expense Français Cet appareil a été testé et s est avéré conforme aux limites prévues pour les appareils numériques de classe A et à la partie 15 des réglementations FCC ainsi qu à la réglementation des interférences radio du Canadian Department of Communications Ces limites sont destinées à fournir une ...

Page 35: ...11 Declarations and requirements 35 K 355 Operation Manual Version G 11 2 Declaration of conformity ...

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Page 38: ...BÜCHI Labortechnik AG CH 9230 Flawil 1 Switzerland T 41 71 394 63 63 F 41 71 394 65 65 093036 www buchi com Quality in your hands ...

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