Metrohm 849 User Manual

849 Level Control

Manual

8.849.8001EN

Metrohm AG
CH-9101 Herisau
Switzerland
Phone [phone]
Fax [phone]
[e-mail]
www.metrohm.com

849 Level Control

Manual

8.849.8001EN 04.2009 dm

Teachware
Metrohm AG
CH-9101 Herisau
[e-mail]

This documentation is protected by copyright. All rights reserved.

Although all the information given in this documentation has been
checked with great care, errors cannot be entirely excluded. Should you
notice any mistakes please send us your comments using the address
given above.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

Table of contents

1 Introduction 1

1.1 Instrument description ......................................................... 1

1.2 Model versions ...................................................................... 1

1.3 Intended use ......................................................................... 2

1.4 About the documentation ................................................... 2

1.4.1 Symbols and conventions ........................................................ 2

1.5 Safety instructions ................................................................ 3

1.5.1 General notes on safety ........................................................... 3

1.5.2 Electrical safety ........................................................................ 3

1.5.3 Flammable solvents and chemicals ........................................... 4

1.5.4 Recycling and disposal ............................................................. 4

2 Overview of the instrument 5

Table of contents

2.1 Sensors .................................................................................. 6

2.1.1 6.1113.000 sensor for aqueous media ..................................... 6

2.1.2 6.1113.100 sensor for non-aqueous media and aqueous

media ...................................................................................... 6

2.1.3 6.1113.110 sensor for ultra pure water ................................... 7

3 Installation 8

3.1 Configuration ........................................................................ 8

3.1.1 Basic setting ............................................................................ 8

3.1.2 Overall status ........................................................................... 9

3.1.3 Selective operating mode ........................................................ 9

3.2 Connecting the sensor ....................................................... 10

3.3 Connecting the remote cable ............................................ 11

4 Handling and maintenance 13

4.1 Sensor monitoring via remote interface ........................... 13

4.1.1 Input lines ............................................................................. 13

4.1.2 SCAN command .................................................................... 13

4.2 Maintenance ....................................................................... 14

5 Technical specifications 15

849 Level Control

5.1 Measuring inputs ................................................................ 15

5.2 Remote socket .................................................................... 15

5.3 Supply .................................................................................. 16

5.4 Safety specifications ........................................................... 16

￭￭￭￭￭￭￭￭

III

Table of contents

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

5.5 Electromagnetic compatibility (EMC) ................................ 16

5.6 Ambient temperature ......................................................... 16

5.7 Dimensions and material ................................................... 17

6 Conformity and warranty 18

6.1 Declaration of Conformity ................................................. 18

6.2 Warranty (guarantee) ......................................................... 19

6.3 Quality Management Principles ........................................ 19

7 Accessories 21

7.1 Scope of delivery 2.849.0010 ............................................ 21

7.2 Scope of delivery 2.849.0020 ............................................ 22

7.3 Scope of delivery 2.849.0030 ............................................ 23

Index 24

￭￭￭￭￭￭￭￭

IV

849 Level Control

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

Table of figures

Figure 1 Front 849 Level Control ..................................................................... 5

Figure 2 Rear 849 Level Control ...................................................................... 5

Figure 3 6.1113.000 sensor ............................................................................ 6

Figure 4 6.1113.100 sensor ............................................................................ 6

Figure 5 6.1113.110 sensor ............................................................................ 7

Figure 6 Printed circuit board .......................................................................... 8

Figure 7 DIP switch strip ................................................................................. 8

Figure 8 Wiring the sensor ............................................................................ 10

Figure 9 Bottle adapter ................................................................................. 10

Figure 10 Remote connection 849 Level Control - Sample Processor with remote

interface .......................................................................................... 11

Figure 11 Remote connection 849 Level Control - Metrohm instrument with

remote box ..................................................................................... 12

Table of figures

849 Level Control

￭￭￭￭￭￭￭￭

V

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

1 Introduction

1.1 Instrument description

The 849 Level Control is used for monitoring liquid levels in canisters and
bottles. It can detect both high liquid levels (e.g. warning of overflow of a
waste container) as well as low liquid levels (e.g. a supply container run­ning empty). Due to conductivity measurement the level sensors can be
used in various media.

The sensor signal is detected by the 849 Level Control and is forwarded as
signal level to a remote connection of a Metrohm automation system.
Therefore, the 849 Level Control can be used with all Metrohm systems in
which the scanning of remote lines is possible (SCAN command).

1.2 Model versions

1 Introduction

The 849 Level Control is available as three model versions:

2.849.0010

849 Level Control with sensor, comprised of three steel rods (stainless
steel, non-acid-resistant, 35 cm long).

For aqueous media.

2.849.0020

849 Level Control with sensor, comprised of three metal-free rods (mate­rial: carbon fiber compound, 35 cm long, unbreakable)

For eluents in chromatography. Can be used in 6.1621.000 20 L canisters.

Also integrated into the screw cap are two FEP tubes for aspirating or fill­ing the container.

2.849.0030

849 Level Control with sensor, comprised of three metal-free rods (mate­rial: high-purity graphite).

For eluents and ultra pure water in chromatography.

Standard length 25 cm for 2 L bottles. The sensor rods can be shortened
to the required lengths suitable for 1 L or 0.25 L bottles (predetermined
breaking points).

849 Level Control

Also integrated into the screw cap are two FEP tubes for aspirating or fill­ing the container.

￭￭￭￭￭￭￭￭

1

1.3 Intended use

1.3 Intended use

The 849 Level Control is designed for usage in an automation system in
analytical laboratories. It is not suitable for usage in biochemical, biologi­cal or medical environments in its basic equipment version.

The instrument described here can be used in chemicals and flammable
solvents. The usage of the 849 Level Control therefore requires that the
user has basic knowledge and experience in the handling of toxic and
caustic substances. Knowledge with respect to the application of the fire
prevention measures prescribed for laboratories or production plants is
also mandatory.

1.4 About the documentation

Caution

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

Please read through this documentation carefully before putting the
instrument into operation. The documentation contains information
and warnings which have to be followed by the user in order to ensure
safe operation of the instrument.

1.4.1 Symbols and conventions

The following symbols and styles are used in this documentation:

Method Dialog text, parameter in the software

File ▶ New

[Next] Button or key

Cross-reference to figure legend

The first number refers to the figure number, the
second to the instrument part in the figure.

Instruction step

Carry out these steps in the sequence shown.

Menu or menu item

Warning

￭￭￭￭￭￭￭￭

2

This symbol draws attention to a possible life hazard
or risk of injury.

849 Level Control