Metrohm 865 User Manual

5 (1)

865 Dosimat plus

Manual

8.865.8005EN

Metrohm AG CH-9100 Herisau Switzerland

Phone +41 71 353 85 85 Fax +41 71 353 89 01 info@metrohm.com www.metrohm.com

865 Dosimat plus

Manual

8.865.8005EN

09.2011 dm

Teachware Metrohm AG CH-9100 Herisau

teachware@metrohm.com

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://products.metrohm.com under Literature/Technical documentation.

 

Table of contents

Table of contents

1 Introduction

1

1.1

Instrument description .........................................................

1

1.1.1

Dosing modes .........................................................................

1

1.1.2

Connectors ..............................................................................

1

1.2

Intended use .........................................................................

2

1.3

About the documentation ...................................................

2

1.3.1

Symbols and conventions ........................................................

2

1.4

Safety instructions ................................................................

3

1.4.1

General notes on safety ...........................................................

3

1.4.2

Electrical safety ........................................................................

3

1.4.3

Tubing connections .................................................................

4

1.4.4

Flammable solvents and chemicals ...........................................

5

1.5

Recycling and disposal .........................................................

5

2 Overview of the instrument

6

 

2.1

865 Dosimat plus .................................................................

6

 

2.2

Manual Dosing Controller ....................................................

8

3

Installation

 

9

 

3.1

Setting up the instrument ....................................................

9

 

3.1.1

Packaging ................................................................................

9

 

3.1.2

Checks ....................................................................................

9

 

3.1.3

Location ..................................................................................

9

 

3.2

Connecting a stirrer ..............................................................

9

 

3.3

Connecting the Manual Dosing Controller .......................

10

 

3.4

Connecting a balance .........................................................

10

 

3.5

Connecting a keyboard, printer and other USB devi-

 

 

 

ces ........................................................................................

11

 

3.6

Connecting instruments to the remote connector ..........

13

 

3.7

Connecting the 805 Dosimat .............................................

14

 

3.8

Attaching the exchange unit .............................................

15

4

Operation

 

16

 

4.1

Switching the instrument on and off ...............................

16

 

4.2

Fundamentals of operation ...............................................

17

 

4.2.1

The keypad ............................................................................

17

 

4.2.2 Structure of the dialog windows ............................................

18

 

4.2.3 Navigating in the dialog .........................................................

18

865 Dosimat plus

III

Table of contents

 

 

4.2.4

Entering text and numbers .....................................................

 

19

4.2.5

Selecting from a selection list .................................................

 

20

4.3

Methods ..............................................................................

 

20

4.3.1

Method templates .................................................................

 

20

4.3.2

Creating a new method .........................................................

 

21

4.3.3

Saving a method ...................................................................

 

21

4.3.4

Loading a method .................................................................

 

22

4.3.5

Exporting a method ...............................................................

 

23

4.4

Stirrer operation .................................................................

 

24

4.5

Entering sample data .........................................................

 

25

4.6

Preparing the buret unit (PREP) ........................................

 

25

4.7

Printing a report manually .................................................

 

26

5 System settings

 

28

5.1

Basic settings ......................................................................

 

28

5.2

Managing solutions ............................................................

 

31

5.2.1

General .................................................................................

 

31

5.2.2

Editing the solution data ........................................................

 

31

5.3

File management ................................................................

 

33

5.4

Configuring external devices .............................................

 

34

5.5

Instrument diagnosis ..........................................................

 

37

5.5.1

Loading program versions and language files

......................... 37

5.5.2

Diagnosis functions ...............................................................

 

38

6 Parameters and dosing modes

 

39

6.1

Manual dosing (DOS) .........................................................

 

39

6.1.1

General description ................................................................

 

39

6.1.2

Selecting a solution ...............................................................

 

40

6.1.3

Dosing parameters ................................................................

 

40

6.1.4

Calculation ............................................................................

 

41

6.1.5

Reports ..................................................................................

 

43

6.1.6

Pulse control ..........................................................................

 

43

6.2

Extended dosing (XDOS) ....................................................

 

44

6.2.1

General description ................................................................

 

44

6.2.2

Selecting a solution ...............................................................

 

45

6.2.3

Selecting the operating mode ................................................

 

45

6.2.4

Dosing parameters ................................................................

 

47

6.2.5

Reports ..................................................................................

 

48

6.3

Creating solutions (CNT D) ................................................

 

49

6.3.1

General description ................................................................

 

49

6.3.2

Selecting a solution ...............................................................

 

51

6.3.3

Definition of the target solution .............................................

 

51

6.3.4

Dosing parameters ................................................................

 

52

6.3.5

Reports ..................................................................................

 

53

IV

865 Dosimat plus

 

 

Table of contents

 

6.4

Pipetting and diluting (LQT) ..............................................

 

54

 

6.4.1

General description ................................................................

 

54

 

6.4.2

Selecting a solution ...............................................................

 

56

 

6.4.3 Definitions of the sample transfer ..........................................

 

56

 

6.4.4

Dosing parameters ................................................................

 

57

 

6.4.5

Reports ..................................................................................

 

57

7

Handling and maintenance

 

59

 

7.1

General ................................................................................

 

59

 

7.2

Quality Management and validation with Metrohm .......

59

8

Appendix

 

 

61

 

8.1

Exchange unit .....................................................................

 

61

 

8.1.1 Maximum dosing and filling rate ............................................

 

61

 

8.1.2 Parameters for the preparing (PREP) .......................................

 

61

 

8.2

Stirring rate .........................................................................

 

62

 

8.3

Balance ................................................................................

 

62

 

8.4

USB devices .........................................................................

 

63

 

8.4.1 Numerical USB keypad 6.2147.000 ........................................

 

63

 

8.4.2 Key assignment of a USB keyboard ........................................

 

64

 

8.4.3

Printer ...................................................................................

 

64

 

8.5

System initialization ...........................................................

 

65

 

8.6

Remote interface ................................................................

 

66

 

8.6.1 Pin assignment of the remote interface ..................................

 

66

 

8.6.2 Status diagram of the remote interface ..................................

 

67

 

8.7

Pulse control .......................................................................

 

69

 

8.8

Remote control via an RS-232 connection .......................

 

70

 

8.8.1

Commands and variables .......................................................

 

71

9

Technical specifications

 

74

 

9.1

Dosing drive ........................................................................

 

74

 

9.2

Interfaces .............................................................................

 

74

 

9.3

Mains connection ...............................................................

 

74

 

9.4

Safety specification ............................................................

 

75

 

9.5

Electromagnetic compatibility (EMC) ................................

 

75

 

9.6

Ambient temperature .........................................................

 

75

 

9.7

Reference conditions ..........................................................

 

76

 

9.8

Dimensions ..........................................................................

 

76

10 Conformity and warranty

 

77

 

10.1

Declaration of Conformity .................................................

 

77

865 Dosimat plus

V

Table of contents

 

10.2

Quality Management Principles ........................................

78

10.3

Warranty (guarantee) .........................................................

79

11 Accessories

 

80

11.1

Scope of delivery 865 Dosimat plus 2.865.0010 .............

80

11.2

Optional accessories ...........................................................

82

Index

 

86

VI

865 Dosimat plus

 

Table of figures

Table of figures

 

Figure 1

Front 865 Dosimat plus .....................................................................

6

Figure 2

Rear 865 Dosimat plus ......................................................................

7

Figure 3

Manual Dosing Controller 6.2107.100 ...............................................

8

Figure 4

Connecting a stirrer ...........................................................................

9

Figure 5

Connecting the Manual Dosing Controller .......................................

10

Figure 6

Connecting a balance ......................................................................

10

Figure 7

Connecting USB devices ..................................................................

11

Figure 8

Connecting the USB stick ................................................................

12

Figure 9

Connecting the 6.2147.000 USB keyboard with USB stick and

 

 

printer .............................................................................................

13

Figure 10

Connecting the USB hub with USB stick, printer and the 6.2148.030

 

 

RS-232/USB Box (for connecting balances). .....................................

13

Figure 11

Connecting a remote cable .............................................................

13

Figure 12

Connecting the 805 Dosimat ...........................................................

14

Figure 13

MSB connector on the 801 Stirrer ...................................................

14

Figure 14

Attaching the exchange unit ...........................................................

15

Figure 15

Keypad 865 Dosimat plus ................................................................

17

Figure 16

Directory structure on the USB stick .................................................

34

Figure 17

Dosing ramp, two examples ............................................................

41

Figure 18

Tandem operation ...........................................................................

46

Figure 19

Rotational speed depending on stirring rate ....................................

62

Figure 20

Pin assignment of remote socket and plug ......................................

66

Figure 21

Remote status diagram DOS ............................................................

67

Figure 22

Remote status diagram DOS with pulse control ...............................

68

Figure 23

Remote status diagram XDOS ..........................................................

68

Figure 24

Remote status diagram CNT_D ........................................................

68

Figure 25

Remote status diagram LQT .............................................................

69

Figure 26

Connecting the RS-232/USB Box to the PC ......................................

71

865 Dosimat plus

VII

 

1 Introduction

1 Introduction

1.1Instrument description

The 865 Dosimat plus is a universally utilizable dosing instrument. Methods can be generated and stored under a new name. When a USB memory stick is connected as an external storage medium, then the methods can be exported to that USB memory stick. This function makes it possible for you to copy methods quickly and easily from one instrument to another. The remote connector enables the integration of the instrument in a Metrohm automation system.

1.1.1Dosing modes

The following dosing modes are supported:

DOS

Manual dosing.

XDOS

Fixed volume dosing, with freely selectable dosing criteria.

CONT D

Preparing solutions.

LQT

Pipetting and dilutiing.

1.1.2Connectors

The instrument is equipped with the following connectors:

MSB connector (Metrohm Serial Bus)

For connecting a stirrer and an 805 Dosimat for tandem dosings.

USB (OTG) connector

The 6.2151.100 adapter allows you to connect, for example, a printer, a USB memory stick or a USB keyboard. A printer can also be connected directly with the 6.2151.120 cable.

Remote connector

For connecting a Manual Dosing Controller, a Titrino plus or a sample changer.

865 Dosimat plus

1

1.2 Intended use

 

1.2Intended use

The 865 Dosimat plus is designed for use in laboratories and production plants. Its main area of application is the precise dosing of liquids. This includes simple dosing according to specific criteria, the preparing of solutions, the pipetting of liquid samples and manual titrations.

The present instrument is suitable for dosing chemicals and flammable solvents. The usage of the 865 Dosimat plus therefore requires that the user has basic knowledge and experience in the handling of poisonous and caustic substances. Knowledge with respect to the application of the fire prevention measures prescribed for laboratories or production plants is also mandatory.

1.3About 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.

1.3.1Symbols and conventions

The following symbols and styles are used in this documentation:

 

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.

 

 

Method

Dialog text, parameter in the software

 

 

File New

Menu or menu item

 

 

[Next]

Button or key

 

 

 

Warning

 

This symbol draws attention to a possible life hazard

 

or risk of injury.

 

 

2

865 Dosimat plus

 

1 Introduction

Warning

This symbol draws attention to a possible hazard due to electrical current.

Warning

This symbol draws attention to a possible hazard due to heat or hot instrument parts.

Warning

This symbol draws attention to a possible biological hazard.

Caution

This symbol draws attention to a possible damage of instruments or instrument parts.

Note

This symbol marks additional information and tips.

1.4Safety instructions

1.4.1General notes on safety

Warning

This instrument may only be operated in accordance with the specifications in this documentation.

This instrument has left the factory in a flawless state in terms of technical safety. To maintain this state and ensure non-hazardous operation of the instrument, the following instructions must be observed carefully.

1.4.2Electrical safety

The electrical safety when working with the instrument is ensured as part of the international standard IEC 61010.

Warning

Only personnel qualified by Metrohm are authorized to carry out service work on electronic components.

865 Dosimat plus

3

1.4 Safety instructions

 

Warning

Never open the housing of the instrument. The instrument could be damaged by this. There is also a risk of serious injury if live components are touched.

There are no parts inside the housing which can be serviced or replaced by the user.

Mains voltage

Warning

An incorrect mains voltage can damage the instrument.

Only operate this instrument with a mains voltage specified for it (see rear panel of the instrument).

Protection against electrostatic charges

Warning

Electronic components are sensitive to electrostatic charges and can be destroyed by discharges.

Always pull the mains cable out of the mains connection socket before connecting or disconnecting electrical appliances on the rear panel of the instrument.

1.4.3Tubing connections

Caution

Leaks in tubing connections are a safety risk. Tighten all connections well by hand. Avoid applying excessive force to tubing connections. Damaged tubing ends lead to leakage. Appropriate tools can be used to loosen connections.

Check the connections regularly for leaks.

4

865 Dosimat plus

 

1 Introduction

1.4.4Flammable solvents and chemicals

Warning

All relevant safety measures are to be observed when working with flammable solvents and chemicals.

Set up the instrument in a well-ventilated location.

Keep all sources of flame far from the workplace.

Clean up spilled fluids and solids immediately.

Follow the safety instructions of the chemical manufacturer.

1.5Recycling and disposal

This product is covered by European Directive 2002/96/EC, WEEE – Waste from Electrical and Electronic Equipment.

The correct disposal of your old equipment will help to prevent negative effects on the environment and public health.

More details about the disposal of your old equipment can be obtained from your local authorities, from waste disposal companies or from your local dealer.

865 Dosimat plus

5

2.1 865 Dosimat plus

 

2 Overview of the instrument

2.1865 Dosimat plus

1

2

3

4

5

Figure 1 Front 865 Dosimat plus

1

Piston rod

 

2

Contact pins

 

Of the dosing drive.

 

 

For the data chip.

 

 

 

 

 

 

 

 

 

3

Coupling

 

4

Display

 

For switching the flat stopcock.

 

 

 

 

 

 

 

 

5Keypad

6

865 Dosimat plus

Metrohm 865 User Manual

 

2 Overview of the instrument

1

3

 

 

4

2

5

 

Figure 2 Rear 865 Dosimat plus

1 Type plate 2 Mains connection socket

Contains specifications concerning mains voltage and serial number.

3USB (OTG) connector

For connecting printers, USB sticks, USB hubs, etc.

5Remote connector

For connecting the Manual Dosing Controller or instruments with a remote interface. D-Sub, 9-pin.

4MSB connector

Metrohm Serial Bus.

For connecting a stirrer or an 805 Dosimat. Mini DIN, 9-pin.

865 Dosimat plus

7

2.2 Manual Dosing Controller

 

2.2Manual Dosing Controller

1 2 3

4

Figure 3 Manual Dosing Controller 6.2107.100

1

Dosing key

 

2

Status LED

 

To start the dosing.

 

 

Indicates the readiness of the instrument.

 

 

 

 

 

 

 

 

 

3

Stop key/Fill key

 

4

Connection cable

 

For stopping and filling the dosing cylinder.

 

 

With 9-pin D-Sub plug.

 

 

 

 

 

8

865 Dosimat plus

 

3 Installation

3 Installation

3.1Setting up the instrument

3.1.1Packaging

The instrument is supplied in highly protective special packaging together with the separately packed accessories. Keep this packaging, as only this ensures safe transportation of the instrument.

3.1.2Checks

Immediately after receipt, check whether the shipment has arrived complete and without damage by comparing it with the delivery note.

3.1.3Location

The instrument has been developed for operation indoors and may not be used in explosive environments.

Place the instrument in a location of the laboratory which is suitable for operation, free of vibrations, protected from corrosive atmosphere, and contamination by chemicals.

The instrument should be protected against excessive temperature fluctuations and direct sunlight.

3.2Connecting a stirrer

You can connect the following stirrers:

801 Stirrer

803 Ti Stand

804 Ti Stand (requires rod stirrer)

Figure 4 Connecting a stirrer

865 Dosimat plus

9

3.3 Connecting the Manual Dosing Controller

 

Caution

Make sure that the flat side of the plug matches the marking on the socket.

3.3Connecting the Manual Dosing Controller

Figure 5 Connecting the Manual Dosing Controller

The Manual Dosing Controller is connected to the remote connector on the rear of the instrument.

3.4Connecting a balance

Balances are equipped with a serial RS-232 interface as a rule. To connect a balance, you require a 6.2148.030 RS-232/USB Box.

Figure 6 Connecting a balance

When a 6.2151.020 USB cable is used, then the 6.2148.030 RS-232/USB Box can be connected to the 865 Dosimat plus by means of a USB hub or a 6.2151.100 adapter (see Chapter 3.5, page 11).

Connect the 9-pin plug of the respective balance connecting cable to the RS 232/1 connector. Consult the user manual of the balance in order to select the correct connecting cable.

10

865 Dosimat plus

 

3 Installation

The parameters for the RS-232 interface on the instrument must match those on the balance (see "Editing the COM1 settings", page 35). Additionally consult the user manual of the balance.

3.5Connecting a keyboard, printer and other USB devices

The 865 Dosimat plus has a USB (OTG) connector. Use the provided 6.2151.100 adapter USB MINI (OTG) - USB A for connecting USB devices as e.g. printers, keyboards or USB sticks, see the following figure.

6.2151.100

Figure 7 Connecting USB devices

Caution

Switch the instrument off before connecting or disconnecting a USB device or a USB stick.

The 865 Dosimat plus can only recognize the device immediately after switching on.

The following devices can be operated directly on the USB connector with the 6.2151.100 adapter:

USB sticks (for the backup or storing of methods)

6.2147.000 numerical USB keypad

6.2148.030 RS-232/USB Box (for connecting balances or for the RS-232 remote control)

USB hub (with or without an own power supply)

The 6.2147.000 numerical USB keypad serves for comfortable numerical input and for navigating in the dialog. In addition, it provides two USB connectors. Connect additional USB devices to the keypad.

865 Dosimat plus

11

3.5 Connecting a keyboard, printer and other USB devices

 

Note

Most of the USB devices need a so-called hub in order to work correctly.

A USB hub is a distributor to which several USB devices can be connected. USB hubs are available in specialty stores in a number of different models.

The USB (OTG) connector of the 865 Dosimat plus has no such hub. The 6.2147.000 numerical USB keypad has a USB hub and two USB connectors.

The following devices can only be connected to a 6.2147.000 numerical keypad or to a USB hub:

Printer (with USB connector, use the 6.2151.020 connecting cable)

Barcode reader (with USB cable)

Mouse (PC mouse with USB cable, for navigating in the dialog)

The following devices can only be connected to a USB hub:

PC keyboard (with USB cable, for the comfortable input of letters and numbers)

Keypad with numerical keypad (with USB cable)

If you wish to connect several different instruments without own power supply, then you must possibly use a USB hub with own power supply (self powered). The USB (OTG) connector of the 865 Dosimat plus is not designed for supplying power to several devices with elevated electricity requirements.

Also observe the instructions in chapter 8.4, page 63.

Examples:

USB MINI (OTG)-USB

USB stick

6.2151.100

Figure 8 Connecting the USB stick

12

865 Dosimat plus

 

3 Installation

USB MINI (OTG)-USB

6.2151.100

USB stick

Keypad

6.2147.000

Printer

Figure 9 Connecting the 6.2147.000 USB keyboard with USB stick and printer

USB MINI (OTG)-USB

USB-Hub

6.2151.100

USB stick

RS-232/USB Box

6.2148.030

Printer

Figure 10 Connecting the USB hub with USB stick, printer and the 6.2148.030 RS-232/USB Box (for connecting balances).

3.6Connecting instruments to the remote connector

The 865 Dosimat plus can be integrated in an automation system with the aid of a remote cable.

Figure 11 Connecting a remote cable

A variety of different connecting cables are available for connecting Metrohm instruments (e.g. sample changers) (see Optional Accessories chapter).

865 Dosimat plus

13

3.7 Connecting the 805 Dosimat

 

3.7Connecting the 805 Dosimat

For tandem operation (XDOS mode), an 805 Dosimat can be connected to the MSB 1 socket on the rear of the 865 Dosimat plus.

Figure 12 Connecting the 805 Dosimat

Caution

Make sure that the flat side of the plug matches the marking on the socket.

If the MSB 1 connector is already occupied by a stirrer (e.g. 801 Stirrer), then the 805 Dosimat can be connected to the MSB socket of the stirrer.

Figure 13 MSB connector on the 801 Stirrer

Caution

Make sure that the flat side of the plug matches the marking on the socket.

The 865 Dosimat plus must be switched off and then on again after connection.

14

865 Dosimat plus

 

3 Installation

3.8Attaching the exchange unit

Figure 14 Attaching the exchange unit

To attach the exchange unit, proceed as follows:

1Slide the exchange unit from the front onto the 865 Dosimat plus and push all the way to the rear.

It must snap in audibly.

865 Dosimat plus

15

4.1 Switching the instrument on and off

 

4Operation

4.1Switching the instrument on and off

Switching on the instrument

Proceed as follows:

1Press the red [FILL] key.

The instrument is initialized and a system test performed. This process takes some time.

If a buret unit has been attached, then a request appears to carry out the PREP function:

All tubings and the cylinder are rinsed with the PREP (Preparing) function. The preparing of the buret unit is described in chapter

"Preparing the buret unit (PREP)", page 25.

Confirm the message with [OK].

The display of this message can be deactivated in the system settings (see "PREP warning", page 30).

The main dialog is displayed:

16

865 Dosimat plus

 

4 Operation

Switching off the instrument

The instrument is switched off with the [FILL] key. The fact that the key needs to be pressed down for an extended time prevents accidental switch off.

Proceed as follows:

1Keep the red [FILL] key pressed down for at least 3 s.

A progress bar is displayed. If the key is released during this time, then the instrument will not be switched off.

4.2Fundamentals of operation

4.2.1The keypad

FILL GO

Figure 15 Keypad 865 Dosimat plus

BACK

Apply the input and exit the dialog.

 

Move the selection bar either up or down by one

 

line at a time. Select the character to be entered

 

in the text editor.

 

Select the character to be entered in the text and

 

number editor. Select the individual functions in

 

the function bar.

OK

Confirm the selection.

FILL

Stop an ongoing method run or a manual func-

 

tion. Switch the instrument on/off.

GO

Start a method run or a manual function.

865 Dosimat plus

17

4.2 Fundamentals of operation

 

4.2.2Structure of the dialog windows

The current dialog title is displayed on the left-hand side of the title line. The current status of the system is displayed in the upper right-hand corner:

ready

The instrument is in normal status.

busy

A method has been started.

hold

A method has been paused.

Some dialogs have a so-called function bar on the bottom line. The functions contained therein can be selected with the arrow keys [ ] or [ ] and executed with [OK].

4.2.3Navigating in the dialog

The selection bar is displayed in inverted style. Use the arrow keys [ ] and [ ] to move the selection bar upward or downward one line at a time. If a dialog text is marked with " ", then additional settings are available in a subordinate dialog. Use [OK] to access this dialog.

Example: System settings

Use the [BACK] key to return to the next higher level.

18

865 Dosimat plus

 

4 Operation

4.2.4Entering text and numbers

In the editing dialog for text or numerical input you can select the individual characters with the arrow keys. Use [OK] to apply the character in the input field. The following functions are available:

Editing function

Description

 

 

Accept

The modification is applied and the editing dialog

 

is exited.

 

 

Cancel

The editing dialog is exited without applying the

 

modification.

 

 

Clear

The content of the input field is deleted com-

 

pletely.

 

 

 

The character left of the cursor is deleted (back-

 

space).

 

 

 

Text editor only

 

The cursor within the input field is shifted to the

 

left by one character each time that [OK] is

 

pressed.

 

 

 

Text editor only

 

The cursor within the input field is shifted to the

 

right by one character each time that [OK] is

 

pressed.

 

 

[BACK]

The modification is applied and the editing dialog

 

is exited.

 

 

The [BACK] key has the same function as Accept.

A commercially available USB keyboard can be connected to make it easier to enter text and numbers. The key assignment on the PC keyboard is described in chapter 8.4.2, page 64.

865 Dosimat plus

19

4.3 Methods

 

4.2.5Selecting from a selection list

In a selection list, select the individual entries with the arrow keys [ ] and [ ]. Accept the selection with [OK] or [BACK].

4.3Methods

4.3.1Method templates

The 865 Dosimat plus contains method templates which are already configured and which can be adjusted to individual requirements.

The following method templates can be selected:

DOS

Manual interactive dosing with optional calcula-

 

tion of results.

 

For manual titrations.

XDOS

Automatic dosing with freely selectable specifi-

 

cations.

 

The following specifications are possible:

 

Volume and time

 

Volume and dosing rate

 

Dosing rate and time

CNT D

Automatic preparation of solutions with speci-

 

fied content.

 

For standard solutions, sample solutions or dilu-

 

tions.

LQT

Liquid handling - sample transfer.

 

Pipetting with or without after-rinsing and/or

 

dilution.

You will find a detailed description of the methods in chapter .

20

865 Dosimat plus

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