Buchi K-314 Manual Download Page 2

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BÜCHI

Distillation Unit

K-314

Scope of Delivery

1 Scope of delivery

Fig. 2: Enclosed parts

Fig. 1: General view

Accessories:

1 Sample tube 500 mL

26128

1 Rack for 4 sample tubes 500 mL

16951

1 Special rubber bung for

16890

Tecator/Gerhardt glasses

1 Handle with cam for

26109

Tecator/Gerhardt glasses

1 Indicator acc.Sher, 100 ml

03512

Table 3: Accessories

Description

Order No.

Versions:

220 - 240V

50/60 Hz

K-314 complete

37961

Table 1: Versions

Enclosed parts:

1 Digestion tube

03904

1 Distillate outlet tube complete

26301

1 Pair of glass tongs

02004

1 Drip tray

26290

1 Water supply complete

10992

3 Nyflex hose ø 14/8 mm to 1,5 m

04113

2 Silicone hose ø 9/6 mm to 1,5 m

04133

2 Flow-through tube ø 8/6 mm

26058

1 Hose clamp

22352

1 NaOH tank 10 L, complete

26112

1 Water tank 10 L, complete

26113

1 Mains cable Type CH

10010

Typ Schuko

10016

Type GB

17835

Type AUS

17836

Type USA

33756

1 Operating instructions

German

96705

English

96706

French

96707

Italian

96708

Spanish

96709

Table 2: Enclosed parts

Summary of Contents for K-314

Page 1: ...2 1 Symbols 3 2 2 Requirements for the operator 3 2 3 Regulation use 3 2 4 Non regulation use 3 2 5 General hazards 4 2 6 Safety measures 4 3 Function 6 3 1 Principle of operation 6 4 Putting into operation 7 4 1 Setup location 7 4 2 Unpacking 7 4 3 Water supply 7 4 4 Drain hose 8 4 5 Connection of the supply tanks 8 5 Operation 9 5 1 Control elements 9 5 2 Control elements and their function 9 5 ...

Page 2: ...0 Hz K 314 complete 37961 Table 1 Versions Enclosed parts 1 Digestion tube 03904 1 Distillate outlet tube complete 26301 1 Pair of glass tongs 02004 1 Drip tray 26290 1 Water supply complete 10992 3 Nyflex hose ø 14 8 mm to 1 5 m 04113 2 Silicone hose ø 9 6 mm to 1 5 m 04133 2 Flow through tube ø 8 6 mm 26058 1 Hose clamp 22352 1 NaOH tank 10 L complete 26112 1 Water tank 10 L complete 26113 1 Mai...

Page 3: ... only to be used by laboratory and specialist personnel and other persons who because of their training or professional experience are able to assess the dangers which can result while operating the equipment Personnel without this training or persons who are in training require thorough instruction These operating instructions are the basis 2 3 Regulation use The unit is conceived and built as a ...

Page 4: ...es be available to the operating personnel at the location where the apparatus is being used This also applies to the further editions in other languages which may be ordered seperately The fusion processing glass must only be removed with pliers because of danger beeing burnt Modifications Any modifications on the apparatus itself or on replacement or accessory parts and any use of replacement or...

Page 5: ...e under anfavourable conditions after being transported under difficult conditions The unit must not be operated with combustible substances If you need the assistance of Büchi Service it is required to indicate and declare eventually remaining dangerous substances e g as defined in EC guidelines L 360 1976 79 or VBG 16 in or on the apparatus for reason of on the job safety or pollution control ...

Page 6: ...for determining nitrogen using the Kjeldahl and Devarda methods Other steam distillations e g of alcohol can also be carried out easily 3 1 Principle of operation 햲 Sample tube 햳 Splash protection 햴 Cooler 햵 Distillate outlet tube 햶 Receiving vessel 햴 햵 햳 햶 햲 Fig 3 Principle of operation K 314 ...

Page 7: ...ct 4 3 Water supply The distillation unit K 314 is delivered with 3 Nyflex high pressure hoses intended for the following connections cooling water inlet H2 O supply tank NaOH supply tank Connect the cooling water connector to the mains water tap The standard sleeve nut has an R 1 2 thread Fig 4 Accessories Reducer 1 2 3 8 Art No 11289 Reducer 1 2 3 4 Art No 11290 Cooling water inlet 1 Shorten the...

Page 8: ...ck it on the flow through tube Insert the flow through tube with the tank cap on into the tank until it reaches the stop Tighten the tank cap Connect the hose from the water tank to the K 314 H2 O nipple Connect the hose from the sodium hydroxide tank to the K 314 NaOH nipple Fix the hose nozzle in place on the large tank cap The supply tanks must not be any higher than the unit itself nor any low...

Page 9: ...tion nipple for sodium hydroxide solution NaOH 헀 Connection nipple for water H2 O 헁 Connection nipple for drain 헂 Mains connector with 2 fuses 20x5 10 AT 5 2 Control elements and their function I O After switching on the distillation unit it takes about 90 seconds before the unit is ready for operation Before switching on check that the supply tanks and or the hoses are filled with reagents NaOH S...

Page 10: ...ded within the K 314 unit by suction To ensure optimum long time operation the steam generator must only be operated on distillated or deionized water Advantages 1 No cleaning of the steam generator is necessary 2 The blank values can be kept under control Never supply the steam generator from a building distilled water distribution pipe 5 5 Rubber bung and PTFE hose Check that the rubber bung and...

Page 11: ... all the way up 1 Insert the test tube as shown on the figure 2 Now push the quick locking clamp all the way down 3 The sample tube is now positioned The tube should not be too loose possible leakage or too tight deformation of the rubber bung Loosen the holders Phillips head screws 4 and adjust the holder according to the position of the sample tube 4 5 Operation Fig 11 Inserting the sample tube ...

Page 12: ...age is the same as that indicated on the unit s nameplate Then connect the distillation unit cable to the mains 5 9 Adjusting the cooling water flow Open the cooling water tap until the flow of water at the outlet hose is 1 l min The distillate must leave the cooler cooled 5 10 Switching the K 314 ON OFF checklist Switching on and preheating the distillation unit K 314 Check the filling of the sup...

Page 13: ...Item No 03512 Alternative Choose a suitable indicator for the back titration Add sodium hydroxide solution Recommeded alkali concentration 32 Add alkali to the specimen in a ratio of about 1 part acid to 3 parts sodium hydroxide solution The volume of the added sodium hydroxide solution is measured on the scale behind the distillation glass The added volume selected must produce a clear shift in c...

Page 14: ...ed fitting and splash protection is 2 Distillation time too short 2 Extend distillation time 3 Unit not preheated 3 Preheat the unit 4 Fusion processing time too short 4 Extend fusion processing time Sodium hydroxide not fed in 1 Tank empty 1 Fill the tank 2 The pump is not sucking 2 Check electrical connections 3 The pump is blocked 3 Clean the pump 4 The pump is faulty 4 Exchange the pump Steam ...

Page 15: ...roximatively 30 ml destillated water Fill the receiving vessel with destillated water so that the PTFE hose is just barely immersed Weekly Remove the rubber bung and clean it with water Also clean the exposed glass nozzle on the splash protection The glass parts are cleaned 6 3 Rubber bung and PTFE hose During the life duration of the rubber bung it is advantageous to remove it periodically approx...

Page 16: ...y pressing them down by hand Slowly pull the splash protection out forward and pull the distributor off the glass part if necessary replace the distributor as well Proceed in the reverse order for reassembly After the first distilllation check that the screw cap is correctly positioned If necessary tighten it 6 6 Customer service Any intervention on or in the apparatus may only be carried out by a...

Page 17: ...ormance 햳 230V T 10A L 250V Insert again fuse holders 6 8 Checking the unit In order to check that the unit is functioning properly do a nitrogen analysis using ammonia salt For a standard application we recommend the following parameters Standard substance Ammonium dihydrogen phosphate p A Molecular weight 115 03 Nitrogen content 12 17 Originally weighed in 400 to 500 mg H2 O 20 ml NaOH 20 ml Dis...

Page 18: ...ed in its original packaging when it is being stored or transported 7 2 Disposal To ensure as ecologically sound a disposal of the apparatus as possible the Appendix in Chap 9 contains a list of the materials used in its most important parts This makes it possible for you to separate the parts and to send them on for recycling For disposal of electronic parts we refer you to official regulations g...

Page 19: ...sed on the information contained herein is permissible 8 1 Replacement parts 1 Fuses 10 10 AT 16952 1 Splash protection 36900 1 Cooler 26004 1 Distillate outlet tube complete 26302 1 Setofsampletubes300mL 4pieces 37377 1 PTFE hose to digestion tube 19010 1 PTFE hose to distillate outlet tube 26300 1 Rubber bung 03907 1 Connector Hypalon 19002 1 Seal ø 22 mm 02073 1 Seal ø 15 mm 03574 1 Screw cap n...

Page 20: ...g stored at temperatures below 5 C remove all liquid from the unit Due to the danger of frost the steam generator cooler hoses etc must all be emptied Caution The steam generator may only be emptied by authorized service personnel Table 6 Technical data Part Material Material code Housing Zinkor ST 1203 ELVZ Glass parts Borosilicate glass 3 3 DIN ISO 3585 Front protection Polystyrene PS Protective...

Page 21: ... 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 règlementation FCC à la règlementation des radio interférences du Canadian Department of communications Ces limites sont destinées à fournir une protection odéquate contre les int...

Page 22: ...1991 B VDE 0875 B VDE 0871 B Maximum permissible values and measurement technique for radio interference by industrial scientific and medical high frequency devices EN 61000 3 2 1995 1996 Limits for harmonic current emissions EN 61000 3 3 1995 Limitation of voltage fluctuations and flicker In accordance with the regulations of the EU guidelines 73 23 EWG Electrical special tools low voltage guidel...

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