Table of Contents
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Table of Contents
Related Manuals for Buchi K-355
Summary of Contents for Buchi K-355
- Page 1 Operation Manual Distillation Unit K� 355 93036...
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Page 3: Table Of Contents
No technical modifications may be made to the instrument without the prior written agreement of Buchi. Unauthorized modifications may affect the system safety or result in accidents. This manual is copyright. Information from it may not be reproduced, distributed, or used for competi- tive purposes, nor made available to third parties. - Page 4 10.1 Spare parts K-355 ........31 10.2 Hosing connection scheme .
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Page 5: About This Manual
1 About this manual About this manual This manual describes the Distillation Unit K-355 and provides all information required for its safe 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. -
Page 6: Safety
The following uses are expressly forbidden: • Use of the instrument in rooms which require ex-protected instruments. • Use on samples, which can explode or inflame (e.g. explosives, etc.) due to shock, friction, heat or spark formation. K-355 Operation Manual, Version G... -
Page 7: Warning Notices Used In This Manual
WARNING Potentially lethal voltage inside the instrument. • Do not remove covers and other parts protecting from electricity. • Always keep the areas of electric parts, such as power supply plug, mains switch, etc. dry. K-355 Operation Manual, Version G... -
Page 8: Other Hazards
Sample tube sensor: Prevents the start of a distillation without a sample tube inserted. • Protective shield (cover) at condenser: Protection of glass parts. • Service door sensor/switch: Electrical power is disconnected immediately when the service door is opened, thus preventing electrical shock during maintenance. K-355 Operation Manual, Version G... -
Page 9: General Safety Rules
Modifications to the instrument are only permitted after prior consultation with and with the written approval of the manufacturer. Modifications and upgrades shall only be carried out by an authorized Buchi technical engineer. The manufacturer will decline any claim resulting from unauthorized modifi- cations. -
Page 10: Technical Data
3 .1 Scope of delivery Check the scope of delivery according to 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... -
Page 11: Standard Accessories
½", L = 1.5 m l 3 tanks 10 l, without caps 43410 m 1 cap for 10 l tanks, large 25869 n 3 tank labels 43434 o 1 cap for 10 l and 20 l tanks, small 43477 K-355 Operation Manual, Version G... -
Page 12: Optional Accessories
3 Technical data 3 .1 .3 Optional accessories Table 3-3: Optional accessories K-355 Product Order number a 1 sample tube 500 ml 26128 4 sample tubes 500 ml 43982 b 4 sample tubes 300 ml 37377 c Condenser cover, complete... - Page 13 3 Technical data Table 3-3: Optional accessories K-355 (cont.) Product Order number Splash protector for Devarda method 43335 K-350/K-355/K-360/K-370 Constricted distillate outlet tube Ø 5 mm 43096 Sample tubes graduated, 300 ml, set of 4 43049 K-355 Operation Manual, Version G...
- Page 14 3 Technical data Table 3-3: Optional accessories K-355 (cont.) Product Order number Universal adapter for K-350, K-355, 43115 K-360, K-370 accessory 48680 K-355 Operation Manual, Version G...
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Page 15: Technical Data
Pollution degree 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... -
Page 16: Description Of Function
This 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 a Splash protector d Condenser b Sample tube e Operating panel c Protective door f Service door Fig. 4.1: Instrument overview K-355 Operation Manual, Version G... -
Page 17: Function Principle
4 Description of function 4 .2 Function principle The Distillation Unit K-355 is suitable for determining nitrogen using the Kjeldahl (TKN; Total Kjeldahl Nitrogen) and Devarda methods as well as for other distillations of steam-volatile substances (e.g. of alcohol, SO , volatile acids). -
Page 18: Controls Of The Instrument
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 K-355 Operation Manual, Version G... -
Page 19: Putting Into Operation
Always connect the instrument to an earthed socket. External connections and extension cables must be provided with an earthed conductor lead (3-pole couplings, cable or plug equipment) as the mains lead has a molded plug, thus avoiding risks due to inadvertent defective wiring. K-355 Operation Manual, Version G... -
Page 20: Reagent And Water Connections
Place the drain hose for the cooling water directly into the drain. For this purpose, shorten the silicone hose to the optimal length. The drain hose should not show any kinks, sharp bends and/or siphoning effect. Prevent flooding inside and outside the instrument by securing the drain hose. K-355 Operation Manual, Version G... -
Page 21: Storage Tank Connection
O storage tank to keep the steam generator maintenance-free. • Make sure that the tanks are connected correctly. If the wrong tank (e. g. reagent tank containing NaOH) is connected to the pump labelled „H O steam“, the steam generator will be damaged. K-355 Operation Manual, Version G... -
Page 22: Operation
If “STOP” is pressed during the automatic addition of reagent, the default volume is set to 0 ml. The pumps for addition of Reagent 1 and Reagent 2 are different. Therefore different settings for the two pumps may be necessary. K-355 Operation Manual, Version G... -
Page 23: Setting The Distillation Time
The program settings are shown after releasing the “UP”/”DOWN” button. NOTE The program settings are changed before a new distillation is started. The old program settings will be overwritten with the new settings. K-355 Operation Manual, Version G... -
Page 24: Steam Generator Status
1 part of acid to 2 parts of water. • Add sodium hydroxide solution by pressing “REAGENT 2”: Recommended alkali concentration: 32%. Add alkali to the sample in a ratio of about 1 part of acid to 3 parts of sodium hydroxide K-355 Operation Manual, Version G... - Page 25 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. K-355 Operation Manual, Version G...
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Page 26: Maintenance
After the glass parts have been cleaned and fully dried, check each part visually for cracks, scratches and for any parts or sections that might have splintered off. Take out and replace any damaged glass parts. K-355 Operation Manual, Version G... -
Page 27: Preparing The Instrument For A Standstill Overnight
Water: 0 ml NaOH: 0 ml Distillation time: 5:00 After the check is finished, measure the distillate amount by means of a measuring flask. With the above parameters it should be about 150 ml. K-355 Operation Manual, Version G... -
Page 28: Half-Yearly Maintenance
Addresses of official Buchi customer service offices are given on the Buchi website under: www.buchi.com. If malfunctions occur on your instrument or you have technical questions or applica- tion problems, contact one of these offices. -
Page 29: Troubleshooting
“Corrective measure”. The elimination of more complicated malfunctions or errors is usually performed by a Buchi technical engineer who has access to the official service manuals. In this case, please refer to your local Buchi customer service agent. -
Page 30: Shutdown, Storage, Transport And Disposal
To dispose of the instrument in an environmentally friendly manner, a list of materials is given in chapter 3. This helps to ensure that the components are separated and recycled correctly. Please follow valid regional and local laws concerning disposal. K-355 Operation Manual, Version G... -
Page 31: Spare Parts
Spare parts This chapter lists spare parts, accessories, and options including their ordering information. Order the spare parts from Buchi. Always state the product designation and the part number when ordering spare parts. Use only genuine Buchi consumables and genuine spare parts for maintenance and repair to assure good system performance and reliability. -
Page 32: Hosing Connection Scheme
10 Spare parts Table 10-1: Spare parts K-355 (cont.) Product Order number p Drip tray 43302 4 sample tubes 300 ml 37377 Cap for 20 l tanks, large (1 piece) 43478 10 .2 Hosing connection scheme a Inlet i Cooler... - Page 33 10 Spare parts Table 10-2: Tubes and components Distillation Unit K-355 Position Order number Description 1 - 2 43555 Solaflex tube Ø 10/5, L = 3500 43153 Unisil Ø 6 x 2, L = 640 43151 Unisil Ø 6 x 2, L = 370 43154 Unisil Ø...
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Page 34: Declarations And Requirements
L’utilisation de cet appareil dans les zones résidentielles peut causer des interférences néfastes, auquel cas l’exploitant sera amené à prendre les dispositions utiles pour palier aux interférences à ses propres frais. K-355 Operation Manual, Version G... -
Page 35: Declaration Of Conformity
11 Declarations and requirements 11 .2 Declaration of conformity K-355 Operation Manual, Version G... - 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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