Metrohm 822 User Manual

822 Titration Curve Simulator

Manual

8.822.1013

Metrohm AG
CH-9100 Herisau
Switzerland
Phone [phone]
Fax [phone]
[e-mail]
www.metrohm.com

822 Titration Curve Simulator

8.822.1013

Manual

06.2006 jb

Teachware
Metrohm AG
CH-9100 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.

Documentation in additional languages can be found on

http://documents.metrohm.com.

Contents

Table of contents

1 Introduction.......................................................... 1

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

1.2 Parts and controls..........................................................................................1

1.3 Functional principle .......................................................................................2

2 Connection ........................................................... 3

2.1 Connection to the MSB interface ..................................................................3

2.1.1 Connection to Titrandos with internal dosing drive .................................3

2.1.2 Connection to Titrandos by using an external dosing device .................4

2.2 Connection to the dosing interface ..............................................................5

2.2.1 Connection to Titrinos by using an external dosing device.....................5

2.2.2 Connection to Titroprocessors.................................................................6

2.3 Connection to the remote interface ..............................................................6

2.3.1 Connection to Titrinos with internal dosing drive.....................................6

3 Description of the titration curves ...................... 8

3.1 Acid-Base titration .........................................................................................8

3.2 Titration of citric acid .....................................................................................8

3.3 Conditioning and Karl Fischer titration ........................................................9

4 Appendix ............................................................. 11

4.1 Description of the curves ........................................................................... 11

4.1.1 Recorder control.....................................................................................11

4.1.2 Diagonal .................................................................................................11

4.1.3 D/A – converter test................................................................................12

4.1.4 Testing department – test ......................................................................13

4.2 Meaning of the LEDs................................................................................... 13

4.2.1 Serial 8-bit...............................................................................................13

4.2.2 Serial 25 bit.............................................................................................14

4.3 Technical data ............................................................................................. 18

4.3.1 Control ....................................................................................................18

4.3.2 Curves.....................................................................................................18

4.3.3 Analog output .........................................................................................18

4.3.4 Resolution...............................................................................................19

4.3.5 Supply.....................................................................................................19

4.3.6 Safety specifications ..............................................................................19

4.3.7 Electromagnetic compatibility (EMC) ....................................................19

4.3.8 Ambient temperature..............................................................................19

4.3.9 Reference conditions .............................................................................19

4.3.10 Dimensions.............................................................................................19

4.4 Standard equipment ................................................................................... 20

4.4.1 822 Titration Curve Simulator.................................................................20

4.5 Warranty and conformity ............................................................................ 21

4.5.1 Warranty .................................................................................................21

4.5.2 Declaration of Conformity.......................................................................22

822 Titration Curve Simulator, Instructions for Use I

Contents

4.5.3 Quality Management Principles .............................................................23

5 Index ................................................................... 24

II 822 Titration Curve Simulator, Instructions for Use

Contents

List of illustrations

Fig. 1: Front view of the Curve Simulator................................................................................ 1

Fig. 2: Rear view of the Curve Simulator................................................................................. 2

822 Titration Curve Simulator, Instructions for Use III

1 Introduction

1 Introduction

These Instructions for Use give you a overview of the applications and
the functionality of the 822 Titration Curve Simulator.

First, the device as such and the simulation of the titration curves are
explained. The description of the additional curves, the explanation of
the LEDs and the technical data are summarized in the appendix.

1.1 Instrument description

The 822 Titration Curve Simulator is a diagnostic tool that allows
Metrohm service technicians to check titrators. With this simulator a
possible malfunction of the titration or dosing device or even the elec­trode can be identified quickly and easily. This is done by connecting
the 822 Titration Curve Simulator instead of an electrode. During the
test it simulates a titration, i.e. the user gets a titration curve without us­ing electrodes or chemicals.

1.2 Parts and controls

Fig. 1: Front view of the Curve Simulator

1 Communication protocol

for adjusting communication type;
depends on the external dosing device

2 Curve selector

for adjusting the desired titration curve

3 Sample addition key for KF titra-

tions

simulates the sample addition after
conditioning

822 Titration Curve Simulator, Instructions for Use 1

1.3 Functional principle

Fig. 2: Rear view of the Curve Simulator

4 Connector cable

connection to the titrator (MSB, Dosing
or Remote)

5 Serial number digit 1 and 2 identify

the device series, digit 3 to 5 the device
number

1.3 Functional principle

The 822 Titration Curve Simulator uses the dosing pulses of the titrator
to output, as the volume increases, an analog signal corresponding to
the titration curve selected. These values are evaluated again by the ti­trator and the equivalence points found are displayed. The data sets of
the titration curves are stored digitally in the Curve Simulator. This al­lows to achieve an excellent reproducibility of the equivalence points.

6 Connector for dosing device

directly or with 6.2134.020 adapter
cable

7 Connector for measuring signal

cable

connection to the measuring interface
with 6.2116.020 cable (2x plug type F)

2 822 Titration Curve Simulator, Instructions for Use