Metrohm 917 Coulometer Manuel utilisateur

917 Coulometer

Manual – Short Instructions

8.917.8002EN / 2019-11-20

Metrohm AG

CH-9100 Herisau

Switzerland

Phone +41 71 353 85 85

Fax +41 71 353 89 01

[email protected]

www.metrohm.com

917 Coulometer

Manual – Short Instructions

8.917.8002EN / 2019-11-20

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

917 Coulometer ￭￭￭￭￭￭￭￭ III

Table of contents

1 About these short instructions 1

2 Introduction 2

2.1 Instrument description ......................................................... 2

2.1.1 Titration and measuring modes ................................................ 2

2.1.2 Connectors .............................................................................. 3

2.1.3 Intended use ........................................................................... 3

2.2 About the documentation ................................................... 3

2.2.1 Symbols and conventions ........................................................ 4

3 Safety instructions 5

3.1 General notes on safety ....................................................... 5

3.2 Electrical safety ..................................................................... 5

3.3 Tubing and capillary connections ........................................ 6

3.4 Flammable solvents and chemicals ..................................... 6

3.5 Recycling and disposal ......................................................... 7

4 Overview of the instrument 8

4.1 Front of the instrument ........................................................ 8

4.2 Rear of the instrument ......................................................... 9

5 Installation 10

5.1 Setting up the instrument .................................................. 10

5.1.1 Packaging .............................................................................. 10

5.1.2 Checks .................................................................................. 10

5.1.3 Location ................................................................................ 10

5.2 Setting up the titration cell for coulometry ..................... 11

5.2.1 Inserting the titration cell ....................................................... 11

5.2.2 Preparing the titration cell ...................................................... 11

5.2.3 Mounting the addition and aspiration tube ............................ 15

5.3 Connecting the coulometer to the power supply ............ 16

5.4 Connecting sensors ............................................................ 17

5.4.1 Connecting generator electrodes ........................................... 17

5.4.2 Connecting indicator electrodes ............................................. 19

5.4.3 Connecting a temperature sensor .......................................... 21

5.5 Connecting MSB devices .................................................... 22

5.5.1 Connecting a dosing device ................................................... 23

5.5.2 Connecting an additional stirrer or titration stand .................. 24

5.5.3 Connecting a Remote Box ..................................................... 24

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

IV ￭￭￭￭￭￭￭￭ 917 Coulometer

5.6 Connecting USB devices ..................................................... 25

5.6.1 General ................................................................................. 25

5.6.2 Connecting a USB hub ........................................................... 25

5.6.3 Connecting a printer .............................................................. 25

5.6.4 Connecting a balance ............................................................ 26

5.6.5 Connecting a PC keyboard ..................................................... 27

5.6.6 Connecting a barcode reader ................................................. 27

5.7 Connecting the Coulometer to a network ....................... 28

6 Operation 29

6.1 Switching the instrument on and off ................................ 29

6.2 Fundamentals of operation ............................................... 31

6.2.1 Touch-sensitive screen ........................................................... 31

6.2.2 Display elements and controls ................................................ 32

6.2.3 Status display ......................................................................... 33

6.2.4 Entering text and numbers ..................................................... 34

7 Maintenance 36

Index 37

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

917 Coulometer ￭￭￭￭￭￭￭￭ V

Table of figures

Figure 1 Front ................................................................................................. 8

Figure 2 Rear .................................................................................................. 9

Figure 3 Inserting the titration cell ................................................................. 11

Figure 4 Filling the adsorber tube .................................................................. 12

Figure 5 Equipping the titration cell ............................................................... 13

Figure 6 Mounting the addition and aspiration tube ...................................... 15

Figure 7 Connecting the power supply unit ................................................... 16

Figure 8 Unscrewing the protective cap from the generator electrode ........... 18

Figure 9 Screwing the electrode cable to the generator electrode ................. 18

Figure 10 Connecting a generator electrode ................................................... 19

Figure 11 Unscrewing the protective cap from the indicator electrode ............ 19

Figure 12 Screwing the electrode cable to the indicator electrode ................... 20

Figure 13 Connecting an indicator electrode ................................................... 20

Figure 14 MSB connections ............................................................................ 22

Figure 15 MSB connector ............................................................................... 23

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 About these short instructions

917 Coulometer ￭￭￭￭￭￭￭￭ 1

1 About these short instructions

This short instruction manual contains important information concerning

the 917 Coulometer. In addition to an introduction, safety instructions

and an overview of the instrument, you will also find information about

the installation of the coulometer.

Additional information concerning the instrument can be found at

http://products.metrohm.com.

2.1 Instrument description ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

2￭￭￭￭￭￭￭￭ 917 Coulometer

2 Introduction

2.1 Instrument description

The 917 Coulometer is a compact titration system for coulometric Karl

Fischer titration. This titrator combines in a single device the touch-sensi-

tive color monitor for convenient and efficient operation, the magnetic

stirrer and the membrane pump for adding and aspirating solvents. The

upper side of the housing offers space for the titration cell. Thanks to its

compact construction, you can use the 917 Coulometer in a small space

as a stand-alone titrator.

You manage reagents, sensors, methods, etc. conveniently in the internal

memory of the coulometer. You can also save your files externally through

the USB connector, e.g. on a USB flash drive. On this storage medium you

can not only store your methods and determinations, but also create a

backup together with all of the data and settings of your system.

The integrated Ethernet connector is available to you should you wish to

connect your 917 Coulometer to a network. The network connection

offers you the following advantages:

￭Saving data to a PC within the network

￭Printing reports on a network printer

￭Sending displayed messages as e-mails

2.1.1 Titration and measuring modes

The 917 Coulometer supports the following titration and measuring

modes.

￭KFC

Coulometric water content determination according to Karl Fischer

with voltametric measurement.

￭BRC

Coulometric bromine index determination. Determining the amount of

double bonds in e.g. mineral oils.

￭MEAS

Measuring modes:

–Ipol (voltametric measurement with selectable polarization cur-

rent)

–Upol (amperometric measurement with selectable polarization

voltage)

–T (temperature measurement)

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