1
Digestion Unit K-424
Contents
Contents
Read these instructions thoroughly before you use the
Digestion Unit K-424. Store these instructions in the im-
mediate vicinity of the apparatus so that they may be consulted
at any time.
The unit must only be connected to the mains and switched
on after having completed all necessary preparations.
Chapter 2 contains important safety information. Knowledge
of this is imperative for the safe operation of the Digestion
unit.
Subject to technical change without notice. No part of these
instructions may be reproduced in any form whatsoever or
processed, reproduced or disseminated by means of
electronic or optical systems without the express written
permission of Büchi Labortechnik AG. All rights reserved.
Copyright © Büchi Labortechnik AG 2008
en, Version E Order No.
K-424 Operating instructions 96711
1 Scope of delivery 2
2 Safety 3
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 Connection to the mains 7
4.4 Hose connections 8
5 Operation 9
5.1 Operating elements 9
5.2 Operating elements and their function 9
5.3 General information 9
5.4 Execution of the Kjeldahl disintegration 11
5.5 Malfunctions 11
6 Maintenance 12
6.1 General information 12
6.2 Upkeep 12
6.3 Gaskets 12
6.4 Replacing the insulation 13
6.5 Replacing the O-rings 13
6.6 Fuses 14
6.7 Customer service 14
7 Taking out of operation 15
7.1 Storage/Transport 15
7.2 Disposal 15
8 Replacement parts 16
9 Appendix 17
9.1 Technical Data 17
9.2 Materials used 17
9.3 FCC requirements 18
9.4 Declaration of conformity 19
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