Buchi SpeedDigester K-436 User Manual

K-425 / K-436 SpeedDigester
Operation Manual
11593346B en

Buchi SpeedDigester K-436 Specifications

General

Brand	Buchi
Model	SpeedDigester K-436
Category	Laboratory Equipment
Language	English

Summary

2 Safety

User Qualification

Specifies that only qualified laboratory personnel may operate the instrument.

Proper Use

Defines the intended use of the SpeedDigester for sample digestion with acids/peroxides.

Improper Use

Lists applications considered improper and risks associated with misuse.

Safety Warnings and Safety Signs

Explains the meaning of signal words and safety symbols used to indicate hazards and precautions.

Product Safety

Details the instrument's design safety and how to avoid residual dangers.

General Hazards

Lists general hazards during instrument operation and required counter-measures.

Warning Labels on Housing and Assemblies

Personal Protective Equipment (PPE)

Specifies the essential personal protective equipment for safe operation.

Built-in Safety Elements and Measures

Describes integrated safety features and requirements for glassware, including qualified vendors.

General Safety Rules

Outlines operator responsibility, duty of maintenance, and rules for spare parts and modifications.

3 Technical Data

SpeedDigester K-425 / 110-120V Version

SpeedDigester K-425 / 220-240V Version

SpeedDigester K-436 / 220-240V Version

4 Description of Function

5 Putting into Operation

Installation Site

Specifies the ideal location and prerequisites for installing the instrument.

System Fixation

Details how to secure the instrument, especially in earthquake-prone regions, and related safety warnings.

Electrical Connections

Provides instructions for safe electrical connection and required mains circuit specifications.

6 Operation

Operating Controls and Housing

Identifies and describes the main controls and housing features of the SpeedDigester.

SpeedDigester K-425 – Front Side

SpeedDigester K-425 – Rear Side

SpeedDigester K-436 – Front Side

SpeedDigester K-436 – Rear Side

Preparing SpeedDigester, Suction Module(s) and Sample Tubes

Kjeldahl Digestion – Preparing Sample Tubes

Peroxide Digestion – Preparing Sample Tubes

Installing a Suction Module and Sample Tubes (300ml)

Installing 500 ml Sample Tubes

Starting up the SpeedDigester

Performing a Kjeldahl Digestion Process

Step-by-step guide for executing a Kjeldahl digestion, including preheating and process steps.

Performing a Peroxide Digestion Process

Detailed procedure for peroxide digestion, including adding peroxide and safety precautions.

Finishing a Digestion Process

7 Maintenance and Repairs

General Condition and Cleaning Instructions

Breakage of Glassware inside a Housing Chamber

Liquid Ingress into the Instrument

8 Troubleshooting

Malfunctions and Their Remedy

Lists common malfunctions, their possible causes, and recommended solutions for the operator.

Device Fuses

9 Shutdown, Storage, Transport and Disposal