Buchi K-370 Quick Manual

Buchi K-370 Quick Manual

Kjeldahl sampler system

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Quick Guide
Kjeldahl Sampler System
K�370/371
93131
en

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Table of Contents
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Summary of Contents for Buchi K-370

  • Page 1 Quick Guide Kjeldahl Sampler System K�370/371 93131...
  • Page 3: Table Of Contents

    Store the manual in the immediate vicinity of the PC running the software, so that it can be consulted at any time. No technical modifications may be made to the system without the prior written agreement of Buchi. Unauthorized modifications may affect the system safety or result in accidents.
  • Page 4: Safety

    • burns caused by contact with hot glass parts • burns caused by contact with steam at the waste-outlet • defective transfer tube: escape of steam and/or sulfuric acid K-370/371 Quick Guide, Version B...
  • Page 5: General Safety Measures

    At least two people must be involved in the manual transport of the Autosampler K-371 due to its heavy weight of 42 kg. Watch your fingers when putting the instrument down. WARNING Biohazard: • Remove all dangerous substances from the instrument and clean it thoroughly. K-370/371 Quick Guide, Version B...
  • Page 6: Daily Maintenance Before Working With The Instrument

    Prime the system as follows: Select Operator > System Preparation > Priming . Activate Proceed via Sampler if an Autosampler K-71 is connected. Prime the system 1 -  times by pressing [Run] before starting the analysis. K-370/371 Quick Guide, Version B...
  • Page 7: Preheating

    (splash protector) has cooled down. The preheating time is predefined. Select Operator > System Preparation > Preheating. Activate Proceed via Sampler by pressing the Enter key if an Autosampler K-71 is con- nected. Start the preheating process by pressing [Run]. K-370/371 Quick Guide, Version B...
  • Page 8: Working With The Autosampler K-371

    Select Operator > Determination > Rack with sampler. Search for the Rack with the samples for which you like to use the blanks and press the Enter key , then press [Blank]. Select [Assign blanks manually], press the Enter key K-370/371 Quick Guide, Version B...
  • Page 9: Measuring Samples In A Rack With Blank Consideration

    Place the samples for the measurement into the 20 rack. Select Operator > Determination > Rack with sampler and search for the rack you have defined with your samples. Press the Enter key Press [Run] to start the measurement of the samples. K-370/371 Quick Guide, Version B...
  • Page 10: Working Without The Autosampler K-371

    Select the group e. g. Meat 1006 and open it with Enter Open a new sample by pressing [New]. Fill in the sample information. E. g.: Name = Blank 20 Type = Blank Method = Standard K-370/371 Quick Guide, Version B...
  • Page 11 Press [New] to enter the information for the next sample. Press [Yes] to save the information for Sample Fill in the sample information. E. g.: Name = Sample 21 Weight = 2.5910 Press [Save] to save the information for Sample K-370/371 Quick Guide, Version B...
  • Page 12: Blank Determination

    This step only needs to be carried out when sample definition in a group should be performed with blank correction. Select Operator > Determination and press the Enter key Select Group and press then Enter key K-370/371 Quick Guide, Version B...
  • Page 13 The display switches to the Status mode and shows the different steps of the determination method. At the end of the determination, State will show Ready. Press [Page] to see the Result of Blank 21. K-370/371 Quick Guide, Version B...
  • Page 14: Definition Of Blank Consideration

    Group Name (e. g. Meat 1006) and press the Enter key Press [Blank]. Select the first blank value (e. g. Blank 20) and press [First]. Select the last blank value (e. g. Blank 21) and press [Last] . K-370/371 Quick Guide, Version B...
  • Page 15 Lower mean limit = 0.0010 ml Upper mean limit = 0.6000 ml Std. deviation limit = 0.050 ml Press [Calc] to calculate. The mean value is calculated. Select the calculated mean value (Mean Blank 20/21) and activate it with [Set]. K-370/371 Quick Guide, Version B...
  • Page 16: Sample Determination

    Place the next tube (Sample 21) into the instru- ment. Press the Mode key to switch to the Operator. Select the next sample (Sample 21) and start the determination by pressing [Run]. Press [Page] to see the result of Sample 21. K-370/371 Quick Guide, Version B...
  • Page 17: View And Print Results

    Press [Blank] to see the considered blank value. NOTE The defined blank value is considered. 5 .2 Printing results Select Configurator > Data Manager > Result > Group. Press [Print] to print out all results summarized in the selected group. K-370/371 Quick Guide, Version B...
  • Page 18: Daily Maintenance After Working With The Instrument

    Select Operator > System preparation > Cleaning and press [Run] to start the cleaning process. 6 .2 pH electrode Rinse the pH electrode and store it in  mol/l KCl solution. K-370/371 Quick Guide, Version B...
  • Page 19: Declaration Of Conformity

    89/336/EEC (electromagnetic compability) Flawil, July 01, 2003 BÜCHI Labortechnik AG Meierseggstrasse 40 Postfach CH-920 Flawil 1 Switzerland Tel.: +41 (0)71 94 6 6 Guido Worch Fax: +41 (0)71 94 65 65 Quality Manager buchi@buchi.com www.buchi.com K-370/371 Quick Guide, Version B...
  • Page 22 BÜCHI Labortechnik AG CH-920 Flawil 1 / Switzerland T +41 71 94 6 6 F +41 71 94 65 65 0911 www .buchi .com Quality in your hands...

This manual is also suitable for:

K-371

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