Metrohm 856 User manual

856 Conductivity Module

Manual

8.856.8005EN / 2020-02-11

Metrohm AG

CH-9100 Herisau

Switzerland

Phone +41 71 353 85 85

Fax +41 71 353 89 01

[email protected]

www.metrohm.com

856 Conductivity Module

Manual

8.856.8005EN / 2020-02-11

Technical Communication

Metrohm AG

CH-9100 Herisau

[email protected]

This documentation has been prepared with great care. However, errors

can never be entirely ruled out. Please send comments regarding possible

errors to the address above.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents

856 Conductivity Module ￭￭￭￭￭￭￭￭ III

Table of contents

1 Introduction 1

1.1 Conductivity Module system ............................................... 1

1.2 Instrument description ......................................................... 2

1.3 Measuring modes and commands ...................................... 2

1.4 About the documentation ................................................... 3

1.4.1 Symbols and conventions ........................................................ 3

1.5 Safety instructions ................................................................ 4

1.5.1 General notes on safety ........................................................... 4

1.5.2 Electrical safety ........................................................................ 4

1.5.3 Working with liquids ................................................................ 5

1.5.4 Recycling and disposal ............................................................. 5

2 Overview of the instrument 6

3 Installation 8

3.1 Setting up the instrument .................................................... 8

3.1.1 Packaging ................................................................................ 8

3.1.2 Checks .................................................................................... 8

3.1.3 Location .................................................................................. 8

3.2 Connecting a controller ........................................................ 8

3.2.1 Operation ................................................................................ 8

3.3 Connecting MSB devices .................................................... 13

3.3.1 Connecting a dosing device ................................................... 14

3.3.2 Connecting a stirrer or titration stand .................................... 15

3.3.3 Connecting a Remote Box ..................................................... 16

3.4 Connecting USB devices ..................................................... 17

3.4.1 General ................................................................................. 17

3.4.2 Connecting a USB hub ........................................................... 18

3.4.3 Connecting a printer .............................................................. 18

3.4.4 Connecting a balance ............................................................ 19

3.4.5 Connecting a PC keyboard (only for operation with Touch

Control) ................................................................................. 20

3.4.6 Connecting a barcode reader ................................................. 21

3.5 Connecting sensors ............................................................ 22

3.5.1 Connecting a conductivity measuring cell .............................. 22

4 Operation and maintenance 24

4.1 Care ...................................................................................... 24

4.2 Maintenance by Metrohm Service .................................... 24

Table of contents ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

IV ￭￭￭￭￭￭￭￭ 856 Conductivity Module

5 Troubleshooting 25

5.1 General ................................................................................ 25

6 Appendix 26

6.1 Remote interface ................................................................ 26

6.1.1 Pin assignment of the remote interface .................................. 26

7 Technical specifications 30

7.1 Measuring interface ........................................................... 30

7.1.1 Conductivity .......................................................................... 30

7.1.2 Temperature .......................................................................... 30

7.2 Power connection ............................................................... 31

7.3 Ambient temperature ......................................................... 31

7.4 Reference conditions .......................................................... 31

7.5 Dimensions .......................................................................... 31

7.6 Interfaces ............................................................................. 32

8 Accessories 33

Index 34

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of figures

856 Conductivity Module ￭￭￭￭￭￭￭￭ V

Table of figures

Figure 1 856 Conductivity Module system ....................................................... 1

Figure 2 Front 856 Conductivity Module ......................................................... 6

Figure 3 Rear 856 Conductivity Module .......................................................... 7

Figure 4 Connecting the Touch Control ........................................................... 9

Figure 5 Connecting the computer ................................................................ 12

Figure 6 MSB connections ............................................................................ 13

Figure 7 Connecting a dosing device ............................................................. 15

Figure 8 Connecting an MSB stirrer ............................................................... 16

Figure 9 Connecting the rod stirrer to the titration stand ............................... 16

Figure 10 Connecting the Remote Box ............................................................ 17

Figure 11 Connecting a printer ....................................................................... 19

Figure 12 Connecting a conductivity measuring cell ........................................ 22

Figure 13 Connecting the adapter box ............................................................ 23

Figure 14 Connecting the conductivity measuring cell to the adapter box ....... 23

Figure 15 Connectors of the Remote Box ........................................................ 26

Figure 16 Pin assignment of remote socket and remote plug ........................... 26

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 Introduction

856 Conductivity Module ￭￭￭￭￭￭￭￭ 1

1 Introduction

1.1 Conductivity Module system

MSB

Controller

PC Keyboard

Barcode

Reader

USB/RS-232 Converter

Touch Control

USB Sample Processor

Robotic Titrosampler

USB Hub

Relay Box

Remote Box

Balance

Dosing Interface

Dosino

Stirrer / Ti Stand

Dosimat

Status

Titrando

USB 856 Conductivity

Module

Cond. cell

Sensors

Printer

Tower-PC

Figure 1 856 Conductivity Module system

1.2 Instrument description ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

2￭￭￭￭￭￭￭￭ 856 Conductivity Module

1.2 Instrument description

Conductivity measurements can be performed with the 856 Conductivity

Module.

The 856 Conductivity Module has the following characteristics:

￭Operation

A touch-screen Touch Control or a high-performance PC software is

used for operation.

￭Dosing

Dosinos or Dosimats can be used for dosing.

￭MSB connectors

Four MSB connectors (Metrohm Serial Bus) for connecting dosing devi-

ces (Dosimat with exchange unit or Dosino with dosing unit), stirrers,

titration stands and Remote Boxes.

￭USB connectors

Two USB connectors, with which devices such as printers, PC key-

boards, barcode readers or additional control instruments (USB Sample

Processor, Titrando, Dosing Interface, etc.) can be connected.

￭Measuring interface

One measuring input for a conductivity measuring cell with integrated

temperature sensor.

1.3 Measuring modes and commands

The following measuring modes and commands are supported:

￭MEAS

The following measuring modes can be selected for measurements:

–Cond (conductivity measurement)

–T (temperature measurement)

￭CAL

Calibration.

–Cond (determination of the cell constant of a conductivity mea-

suring cell)

￭Dosing commands

The following commands for dosing can be selected:

–PREP (rinsing the cylinder and tubings of an exchange unit or

dosing unit)

–EMPTY (emptying the cylinder and tubings of a dosing unit)

–ADD (dosing a specified volume)

–LQH (carrying out complex dosing tasks with a Dosino)

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