Mettler Toledo MS, MS105, MS105DU, MS205DU, MS204 Reference Manual

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Reference Manual

Semi-Micro Balances

Table of Contents

1 Introduction 3

2 Safety Information 4

2.1 Definitions of signal warnings and warning symbols........................................................ 4

2.2 Product specific safety notes ......................................................................................... 4

3 Design and Function 6

3.1 Overview components .................................................................................................. 6

3.2 Overview type plate...................................................................................................... 7

3.3 Overview operation keys............................................................................................... 7

3.4 Display....................................................................................................................... 9

4 Installation and Putting into Operation 10

4.1 Selecting the location ................................................................................................... 10

4.2 Scope of delivery ......................................................................................................... 10

4.3 Unpacking .................................................................................................................. 10

4.4 Installing components .................................................................................................. 11

4.5 Connecting the balance ................................................................................................ 11

4.6 Setting up the balance.................................................................................................. 12

4.7 Adjustment (calibration) ............................................................................................... 13

4.8 Performing a simple weighing....................................................................................... 17

4.9 Transporting the balance .............................................................................................. 19

4.10 Weighing below the balance ......................................................................................... 20

4.6.1 Switching on the balance ............................................................................... 12

4.6.2 Leveling the balance...................................................................................... 12

4.6.3 Left/right operating of the glass draft shield ...................................................... 13

4.6.4 Adjusting the balance .................................................................................... 13

4.7.1 Fully automatic adjustment FACT .................................................................... 14

4.7.2 Manual adjustment with internal weight ........................................................... 14

4.7.3 Manual adjustment with external weight .......................................................... 14

4.7.4 Customer fine adjustment............................................................................... 15

4.9.1 Transporting over short distances.................................................................... 19

4.9.2 Transporting over long distances .................................................................... 20

4.9.3 Packaging and storage.................................................................................. 20

5 The Menu 22

5.1 What is in the menu ? .................................................................................................. 22

5.2 Menu operation ........................................................................................................... 23

5.3 Description of menu topic ............................................................................................. 24

5.3.1 Main menu................................................................................................... 24

5.3.2 Basic menu.................................................................................................. 25

5.3.3 Advanced menu............................................................................................ 26

5.3.4 Interface menu.............................................................................................. 31

6 Applications 39

6.1 Application piece counting ............................................................................................ 39

6.2 Application percent weighing......................................................................................... 42

6.3 Application statistics..................................................................................................... 44

6.4 Application formulation (Net total) ................................................................................. 46

6.5 Application totaling ...................................................................................................... 49

6.6 Application multiplication factor weighing ....................................................................... 51

6.7 Application division factor weighing ............................................................................... 53

6.8 Application density....................................................................................................... 55

6.8.1 Density determination of solids ....................................................................... 56

6.8.2 Density determination of liquids ...................................................................... 57

6.8.3 Formulae used to calculate density ................................................................. 58

Table of Contents 1Semi-Micro Balances

6.9 Application pipette check .............................................................................................. 60

6.10 Application routine test ................................................................................................. 64

6.11 Application diagnostics................................................................................................. 66

6.11.1 Repeatability test........................................................................................... 66

6.11.2 Display test .................................................................................................. 66

6.11.3 Key test........................................................................................................ 67

6.11.4 Motor test..................................................................................................... 67

6.11.5 Balance history............................................................................................. 67

6.11.6 Calibration history ......................................................................................... 68

6.11.7 Balance information ...................................................................................... 68

6.11.8 Service provider information ........................................................................... 69

7 Communication with Peripheral Devices 70

7.1 USB - interface and installation...................................................................................... 70

7.2 Send weight value via USB or RS232 to a PC using PC-Direct........................................... 71

7.2.1 PC-Direct via USB ......................................................................................... 71

7.2.2 PC-Direct via RS232 ..................................................................................... 72

7.2.2.1 Installing SerialPortToKeyboard software .................................................... 72

7.2.2.2 Settings on the balance............................................................................ 72

7.3 Send weight value via USB to PC using LabX Direct Balance............................................. 73

8 Maintenance 74

8.1 Maintenance table........................................................................................................ 74

8.2 Performing routine tests................................................................................................ 74

8.3 Cleaning..................................................................................................................... 74

8.3.1 Cleaning agents............................................................................................ 74

8.3.2 Cleaning the glass draft shield........................................................................ 76

8.3.3 Cleaning the balance..................................................................................... 77

8.3.4 Putting into operation after cleaning ................................................................ 77

9 Troubleshooting 78

9.1 Error messages ........................................................................................................... 78

9.2 Error symptoms........................................................................................................... 80

9.3 Status messages/Status icons ....................................................................................... 82

9.4 Putting into operation after correction of fault................................................................... 82

10 Technical Data 83

10.1 General data ............................................................................................................... 83

10.2 Model-specific data...................................................................................................... 84

10.3 Dimensions................................................................................................................. 86

10.4 Interface specification ................................................................................................... 87

10.4.1 RS232C interface .......................................................................................... 87

10.4.2 USB device................................................................................................... 88

10.4.3 Aux connection ............................................................................................. 88

10.4.4 MT-SICS interface commands and functions ..................................................... 88

11 Disposal 89

12 Accessories and Spare Parts 90

12.1 Accessories................................................................................................................. 90

12.2 Spare parts ................................................................................................................. 95

Index 97

Table of Contents2 Semi-Micro Balances

1 Introduction

Thank you for choosing a METTLER TOLEDO balance. The balance combines high performance with ease of use.

This document refers to the initially installed software version V 2.20.

EULA

The software in this product is licensed under the METTLER TOLEDO End User License Agreement (EULA) for Software.

When using this product you agree to the terms of the EULA.

Finding more information

www.mt.com/semimicro-analytical

Search for software downloads u www.mt.com/labweighing-software-download

Search for documents u www.mt.com/library

For further questions, please contact your authorized METTLER TOLEDO dealer or service representative.

Conventions and symbols

Key and/or button designations and display texts are shown in graphic or bold text, e.g.,

Refers to an external document.

www.mt.com/EULA

www.mt.com/contact

, DATE.

Note

For useful information about the product.

This symbol indicates press key briefly (less than 1.5 s).

This symbol indicates press and hold key down (longer than 1.5 s).

This symbol indicates a flashing display.

Elements of instructions

Prerequisites

1 Steps 2 ...

ð Intermediate results

ð Results

Introduction 3Semi-Micro Balances

2 Safety Information

Two documents named "User Manual" and "Reference Manual" are available for this instrument.

• The User Manual is printed and delivered with the instrument.

• The electronic Reference Manual contains a full description of the instrument and its use.

• Keep both documents for future reference.

• Include both documents if you transfer the instrument to other parties.

Only use the instrument according to the User Manual and the Reference Manual. If you do not use the instrument according to these documents or if the instrument is modified, the safety of the instrument may be impaired and Mettler-Toledo GmbH assumes no liability.

2.1 Definitions of signal warnings and warning symbols

Safety notes contain important information on safety issues. Ignoring the safety notes may lead to personal injury, damage to the instrument, malfunctions and false results. Safety notes are marked with the following signal words and warning symbols:

Signal words

WARNING

A hazardous situation with medium risk, possibly resulting in death or severe injury if not avoided.

CAUTION

NOTICE

A hazardous situation with low risk, resulting in minor or moderate injury if not avoided.

A hazardous situation with low risk, resulting in damage to the instrument, other material damage, malfunctions and erroneous results, or loss of data.

Warning symbols

Electrical shock

General hazard: read the User Manual or the Reference Manual for information about the hazards and the resulting measures.

Personal protective equipment

Chemical resistant safety gloves are intended to protect hands against aggressive chemicals.

The protective goggles protect the eyes from flying parts and liquid splashes.

2.2 Product specific safety notes

Intended use

This instrument is designed to be used in laboratories by trained staff. The instrument is intended for weighing purposes.

Any other type of use and operation beyond the limits of technical specifications without written consent from Mettler-Toledo GmbH is considered as not intended.

Responsibilities of the instrument owner

The instrument owner is the person holding the legal title to the instrument and who uses the instrument or authorizes any person to use it, or the person who is deemed by law to be the operator of the instrument. The instrument owner is responsible for the safety of all users of the instrument and third parties.

Safety Information4 Semi-Micro Balances

METTLER TOLEDO assumes that the instrument owner trains users to safely use the instrument in their workplace and deal with potential hazards. METTLER TOLEDO assumes that the instrument owner provides the necessary protective gear.

Trained personnel

Persons performing weighing processes must fulfill the following basic knowledge requirements regarding the handling of METTLER TOLEDO instruments and associated software:

• Are able to complete the tasks entrusted to them and independently detect and avoid any possible dangers.

• Have expertise and experience as well as their familiarity with all applicable regulations.

• Able to prove that they have undergone training.

Safety notes

WARNING

Death or serious injury due to electric shock

Contact with parts that carry a live current can lead to death or injury. 1 Only use the approved METTLER TOLEDO power supply cable and AC/DC adapter with a

current-limited SELV output. 2 Connect the power cable to a grounded power outlet, ensure correct polarity. 3 Keep all electrical cables and connections away from liquids and moisture. 4 Check the cables and power plug for damage and replace damaged cables and power

plugs.

NOTICE

Risk of damage to the accessory or the main instrument due to the use of unsuitable parts!

Using unsuitable parts with the accessory or the main instrument can damage the accessory or the main instrument or cause them to malfunction.

− Only use parts from METTLER TOLEDO that are intended to be used with your accessory.

A listing of all parts can be found in the Reference Manual (RM).

Safety Information 5Semi-Micro Balances

3 Design and Function

13 14

3.1 Overview components

Components overview legend

Display

Model sticker (with approved models only)

Draft ring

Handle/Coupling element for the operation of

the draft shield doors

Handle for operation of the draft shield top

door

Drip tray

Socket for AC/DC Adapter

USB device interface

Kensington slot for anti-theft purposes

Operation keys

Level indicator

Weighing pan

Glass draft shield

Top cover

Leveling feet

Aux (connection for "ErgoSens" or foot-switch)

RS232C serial interface

Product label

Design and Function6 Semi-Micro Balances

3.2 Overview type plate

1 52 3 4

Weigh-Track

1 2 4 53 6

The balance type plate is located at the side of the balance, see example illustration and contains the following information:

Model designation

Readability

Manufacturer

Power supply

3.3 Overview operation keys

Year of manufacture

Maximum capacity

Serial number (SNR)

Terminal keys legend

No. Key Press briefly (less than 1.5 s) Press and hold (longer than 1.5 s)

• To navigate back (scroll up) within menu

topics or menu selections

• Decrease (numerical) parameters within

menu and in applications

• To select the weighing application

• Decrease (numerical) parameters quickly

within menu and in applications

Design and Function 7Semi-Micro Balances

No. Key Press briefly (less than 1.5 s) Press and hold (longer than 1.5 s)

On/Off

• To navigate forward (scroll down) within

menu topics or menu selections

• Increase (numerical) parameters within

menu and in applications

• To select assigned F1 application and

entering the parameter settings of application.

• Default F1 application assignment: Piece

counting

• Increase (numerical) parameters quickly

within menu and in applications

• Switch on

• Zero/Tare

• With entries: scroll down

• To navigate through menu topics or menu

selections

• To toggle between unit 1, recall value (if

selected), unit 2 (if different from unit 1)

• Switch off

• To select assigned F2 application and

entering the parameter settings of application.

• Default F2 application assignment:

Percent weighing

and the application unit (if any)

• To change display resolution (1/10d

no function

function) while application is running

Note: not available with approved

models in selected countries.

• To enter or leave menu selection (from /

to menu topic)

• To enter application parameter or switch

to next parameter

• To confirm parameter

• Printout display value

• Printout active user menu settings

• Transfer data

• Execute predefined adjusting (calibration)

• To select assigned F3 application and

entering the parameter settings of application.

• Default F3 application assignment:

Statistics

no function

procedure

• Enter or leave menu (Parameter settings)

• Save parameters

• Cancel and to leave menu without saving

no function

(one step back in the menu).

Design and Function8 Semi-Micro Balances

3.4 Display

Application icons

Menu locked Application formulation / Net total

Menu setting activated Application totaling

Application weighing Application multiplication factor

Application piece counting Application division factor

Application percent weighing Application density

Application statistics Application pipette check

While an application is running, the corresponding application icon appears at the top of the display.

Status icons

Indicates stored value (Memory) Applications diagnostics and routine test

Indicates net weight values Acoustic feedback for pressed keys activated

Adjustments (calibration) started Weighing range 1 (Dual Range models only)

FACT activated Weighing range 2 (Dual Range models only)

Service reminder Not used

Weight value field and weighing-in aid

Indicates negative values Brackets to indicate uncertified digits

(approved models only)

Indicates unstable values Marking of nominal or target weight

Indicates calculated values Not used

Not used

Unit field

gram

kilogram

milligram

carat

pound

ounce

ozt

dwt

mom

msg

tlh

troy ounce

grain

pennyweight

momme

mesghal

Hong Kong taels

tls

tlt

tola

baht

Singapore taels

Taiwan taels

tola

baht

Design and Function 9Semi-Micro Balances

4 Installation and Putting into Operation

4.1 Selecting the location

A balance is a sensitive precision instrument. The location where it is placed will have a profound effect on the accuracy of the weighing results.

Requirements of the location

According to the environmental condition, see chapter "General data".

Ensure there is:

• indoor on

stable table

Avoid:

• direct sunlight • vibrations • strong drafts • temperature

• with sufficient

distance (> 15 cm)

• in level • adequate lit

fluctuations

4.2 Scope of delivery

• Balance with draft shield

• Weighing pan with pan support

• Draft ring

• Drip tray

• Protective cover

• AC/DC adapter

• Power cable (country specific)

• 1 User Manual

• Declaration of conformity

4.3 Unpacking

Open the balance packaging. Check the balance for transport damage. Immediately inform a METTLER TOLEDO representative in the event of complaints or missing accessories.

Retain all parts of the packaging. This packaging offers the best possible protection for transporting the balance.

Installation and Putting into Operation10 Semi-Micro Balances

4.4 Installing components

CAUTION

Injury due to breaking glass

Careless handling with the glass components can lead to breakage off glass and damage cuttings.

− Always proceed focused and with care.

Push the side glass doors back as far as will go and place the following components on the balance in the specified order:

1 Place the drip tray (1) into the correct position. 2 Place the weighing pan (3). 3 Place the draft ring (2).

4.5 Connecting the balance

WARNING

Death or serious injury due to electric shock

Contact with parts that carry a live current can lead to death or injury. 1 Only use the approved METTLER TOLEDO power supply cable and AC/DC adapter with a

plugs.

NOTICE

Damage to the AC/DC adapter due to overheating

If the AC/DC adapter is covered or in a container, it is not sufficiently cooled and will overheat.

1 Do not cover the AC/DC adapter. 2 Do not put the AC/DC adapter in a container.

The balance is supplied with an AC/DC adapter and a country-specific power cable.

• Install the cables so that they cannot be damaged or interfere with operation.

• Insert the power cable in a grounded power outlet that is easily accessible.

Installation and Putting into Operation 11Semi-Micro Balances

1 Connect the AC/DC adapter to the connection socket on

Off

0.00

the back of your balance (see figure) and to the power

line. 2 Screw the plug tight to the balance. ð The balance is ready for use.

4.6 Setting up the balance

4.6.1 Switching on the balance

Before using the balance, it must be warmed up in order to obtain accurate weighing results. To reach operating temperature, the balance must be acclimatized and connected to the power supply for at least 60 minutes.

Switching on

− Press On.

ð The balance performs a display test. All segments

in the display light up briefly, WELCOME and software version. Maximum load and readability appears briefly. (Startup FULL mode only).

ð The balance is ready for weighing or for operation with

the last active application.

Legal-for-trade

Approved balances will execute an initial zero.

4.6.2 Leveling the balance

The balance has a level indicator and two adjustable leveling feet to compensate for slight irregularities in the surface of the weighing bench. The balance is exactly horizontal when the air bubble is in the middle of the level glass.

The balance must be leveled and adjusted each time it is moved to a new location. To level it, proceed as follows: 1 Position your balance at the selected location. 2 Align the balance horizontally.

Installation and Putting into Operation12 Semi-Micro Balances

3 Turning the two front leveling screws of the housing

until the air bubble is in the inner circle of the level indicator.

Example

Air bubble at 12 o'clock: turn both feet clockwise.

Air bubble at 3 o'clock: turn left foot clockwise, right foot counterclockwise.

Air bubble at 6 o'clock: turn both feet counterclockwise.

Air bubble at 9 o'clock: turn left foot counterclockwise, right foot clockwise.

4.6.3 Left/right operating of the glass draft shield

The glass draft shield of your balance can be adapted to the environ-

mental conditions and your weighing style, as well as to the type of

weighing and loading.

The position of the handles determines which door(s) of the draft

shield (left, right, or both) is/are opened.

Try various different combinations by moving the external handles into

the upper or lower position. We recommend you to set up the glass

draft shield so that it only opens on the side where the balance is

loaded. Your balance then works faster, because there are fewer

troublesome currents of air than when both doors of the draft shield are

opened together.

4.6.4 Adjusting the balance

To obtain accurate weighing results, the balance must be adjusted to match the gravitational acceleration at its

location. This is also dependent on the ambient conditions. After reaching the operating temperature, it is

important to adjust the balance in the following cases:

• Before the balance is used for the first time.

• If the balance has been disconnected from the power supply or in the event of power failure.

• After significant environmental changes (e.g. temperature, humidity, air draft or vibrations).

• At regular intervals during weighing service.

4.7 Adjustment (calibration)

NOTICE

Before adjusting the balance, it must be warmed up.

Installation and Putting into Operation 13Semi-Micro Balances

4.7.1 Fully automatic adjustment FACT

------

ADJ DONE

0.00

ADJ.INT

------

2000.00

ADJ DONE

0.00

------

ADJ.EXT

The factory setting is fully automatic adjustment FACT (Fully Automatic Calibration Technology) with the internal weight.

More information can be found in the section [The Menu The balance adjusts itself automatically:

• after the warm-up phase on connection to the power supply.

• when a change in the ambient conditions, e.g. the temperature, could lead to a noticeable deviation in the

measurement.

• on a predefined time, see menu topic FACT.

• time interval. (with OIML accuracy class II approved models).

4.7.2 Manual adjustment with internal weight

In the menu topic CAL (Adjustment) of advanced menu ADJ.INT must be selected.

Weighing pan is unloaded.

− Press to execute the internal adjustment.

ð The balance adjusts itself automatically. ð The adjusting is finished when the message ADJ DONE

appears briefly on the display. The balance returns to

the last active application and is ready for operation.

}Page22].

4.7.3 Manual adjustment with external weight

Note

We recommend to disable FACT.

In the menu topic CAL (Adjustment) of advanced menu ADJ.EXT must be selected.

Required adjustment weight is ready.

Weighing pan is unloaded.

1 Press briefly to execute the external adjustment.

ð The required (predefined) adjustment weight value

flashes on the display.

2 Place adjustment weight in center of pan.

ð The balance adjusts itself automatically.

3 Remove adjustment weight, when 0.00 g flashes.

ð The adjusting is finished when the message ADJ DONE

appears briefly on the display. The balance returns to

the last active application and is ready for operation.

Installation and Putting into Operation14 Semi-Micro Balances

4.7.4 Customer fine adjustment

NOTICE

This function should be executed only by trained personnel.

The function customer fine adjustment ADJ.CUST.F allows you to adjust the value of the internal adjustment

weight with your own adjustment weight. The adjustable range of the adjustment weight is possible only in a

very small range. Customer fine adjustment impacts the function of internal adjustment. The customer fine

adjustment can be deactivated at any time.

Note

• This feature is available on models with internal weight only.

• Because of certification legislation, approved models cannot be adjusted with customer fine adjustment

(depending on selected countries' certification legislation).

• Use certificated weights.

• Balance and test weight have to be on operating temperature.

• Observe the correct environmental conditions.

Installation and Putting into Operation 15Semi-Micro Balances

Execute customer fine adjustment

200.0000

ADJ.DONE

0.00

------

200.0005

ADJ.CUST.F

EXECUTE

SET REF.

ADVANCED

------

0.00

The balance is under measuring condition.

Required adjustment weight is ready.

Weighing pan is unloaded.

1 Select in the menu ADVANCED: ADJ.CUST.F

2 Confirm ADJ.CUST.F with

3 To carry out this operation select EXECUTE.

4 Start Adjustment with

ð SET REF. appears briefly.

ð The last saved value flashes on the display.

5 Select the target adjustment weight.

• For coarse setting, press

• For fine setting, press + to increase the value or

press - to decrease the value.

6 Press and hold

ADJ.CUST.F.

ð The required adjustment weight value flashes in the

7 Place required adjustment weight in center of pan. 8 Remove adjustment weight when zero is flashing.

9 Wait until ADJ DONE briefly appears.

ð The adjusting is finished when the message ADJ DONE

appears briefly on the display. The balance returns to

the last active application and is ready for operation ð If the error message WRONG ADJUSTMENT WEIGHT

appears, the weight is not within the allowed value

range and could not be accepted. ADJ.CUST.F could

not be executed.

to change the value.

to confirm and execute

display. This could take some time.

Note

Storing the adjustment is not required.

Deactivate customer fine adjustment

1 Select in the menu ADVANCE.: ADJ.CUST.F.

2 Confirm ADJ.CUST.F with

3 To carry out this operation select RESET.

4 Start RESET by pressing

ð NO? appears.

5 Select YES? and confirm with

ð The adjusting is finished when the message ADJ DONE appears briefly on the display. The balance returns

to the last active application and is ready for operation with initial adjustment.

Installation and Putting into Operation16 Semi-Micro Balances

4.8 Performing a simple weighing

1250.38

0.00

1182.03

¢¢¢¢¢¢¢¢

¢¢¢¢¢¢

0.00

121.01

¢¢¢¢

0.01

0.00

121.01

¢¢¢¢

0.00

¢¢¢¢

95.97

¢¢¢¢¢¢¢

121.01

¢¢¢¢

Net

The weighing application allows you to perform simple weighings and how you can accelerate the weighing process.

If your balance is not in the weighing mode, press and hold the

key down until WEIGHING appears in the

display. Release the key. Your balance is in the weighing mode and set to zero.

1 Press to tare the balance.

2 Place the sample on the weighing pan.

3 Wait until the instability detector

disappears and the

stability beep sounds.

4 Read the result.

Zeroing

Use the

zeroing key before you start with a weighing. 1 Unload the balance.

2 Press

to zero the balance.

ð All weight values are measured in relation to this

zero point.

Taring

If you are working with a weighing container, first set the balance to zero. 1 Place empty container on the weighing pan.

2 Press

3 Place weighing sample into the weighing container. ð The result appears in the display.

• If the container is removed from the balance, the tare weight will be shown as a negative value.

ð The weight is displayed.

to set the balance to zero.

ð 0.00 g and Net appears in the display. Net

indicates that all weight values displayed are net values.

Note

Installation and Putting into Operation 17Semi-Micro Balances

• The tare weight remains stored until the

0.78

22.00

¢¢¢¢

22.00

¢¢¢¢

121.01

¢¢¢¢

0.00



0.00

121.01

0.00

¢¢¢¢¢¢¢¢

100%

• With METTLER TOLEDO DeltaRange balances, the fine range with its 10 times smaller display increments

key is pressed again or the balance is switched off.

(depending on the model) is available again after every taring operation.

METTLER TOLEDO DualRange balances

METTLER TOLEDO DualRange balances have two ranges. These models have a fix fine (semi-micro) range between 0 g and maximum capacity, fine range. In this fine range the balance shows the result with a higher resolution, i.e. with one decimal place more.

Switching weight units

key can be used at any time to toggle between weight unit UNIT 1, RECALL value (if selected) and

The weight unit UNIT 2 (if different from weight unit 1) and the application unit (if any).

− Press to set weight unit or recall value.

Recall / recall weight value

Recall stores stable weights with an absolute display value bigger than 10d.

Function RECALL is in the menu activated.

1 Load weighing sample.

ð The display shows weight value and stores stable

value.

2 Remove weighing sample.

ð The display shows zero.

3 Press

ð The display shows last stored stable weight value

for 5 seconds together with asterisk (*) and memory (M) symbols. After 5 seconds the display goes back to zero. This can be repeated unlimited times.

Delete last weight value

As soon a new stable weight value is displayed, the old recall value becomes replaced by the new weight value.

− Press

ð The recall value is set to 0.

If the power is switched off, the recall value is lost. The recall value can not be printed.

Weighing with the weighing-in aid

The weighing-in aid is a dynamic graphic indicator which shows the used amount of the total weighing range. You can thus recognize at a glance when the load on the balance approaches the maximum load.

Installation and Putting into Operation18 Semi-Micro Balances

Print / transmit data

SHUTOFF

Off

Press the

key to transmit the weighing results over the interface e.g. to a printer or a PC.

Switching off

− Press and hold the Off key until SHUTOFF appears on

the display. Release the key.

ð Balances switch into standby mode.

Note

• After switching on from standby mode, your balance needs no warm-up time and is immediately ready for

weighing.

• Standby mode is not possible with approved balances (only available in selected countries).

• If your balance has been switched off after a preselected time, the display is dimly lit and shows date, time,

maximum load and readability.

• If your balance has been switched off manually, the display is off.

• To completely switch off mains operated balances, they must be disconnected from the power supply.

4.9 Transporting the balance

CAUTION

Injury due to breaking glass

Careless handling with the glass components can lead to breakage off glass and damage cuttings.

1 Do not lift the instrument by the glass draft shield. 2 Always proceed focused and with care.

1 Press and hold the Off key.

2 Disconnect the balance from the power supply. 3 Disconnect all interface cables.

4.9.1 Transporting over short distances

To move the balance over a short distance to a new location, follow the instructions below.

Installation and Putting into Operation 19Semi-Micro Balances

1 Hold the balance with both hands as shown. 2 Carefully lift the balance and carry it to its new

location.

If you want the balance put into operation, proceed as follows:

1 Connect in reverse order. 2 Level the balance. 3 Perform an internal adjustment.

4.9.2 Transporting over long distances

For transporting the balance over long distances, always using the original packaging.

4.9.3 Packaging and storage

Packaging

Store all parts of packaging in a save place. The elements of the original packaging are developed specifically for the balance and its components to ensure maximum protection during transportation or storing.

Storage

Store the balance under following conditions:

• Indoor and in the original packaging.

• According to the environmental condition, see chapter "General data".

• When storing for longer than six months, the rechargeable battery maybe down (date and time get lost).

4.10 Weighing below the balance

Your balance is equipped with a hanger for performing weighing operations below the work surface (weighing below the balance).

1 Press and hold the Off key.

2 Disconnect the balance from the power supply. 3 Disconnect all interface cables.

4 Push the side doors and the top door of the glass draft shield completely to the back. Important: top cover

must be closed.

5 Remove weighing pan, draft ring and drip tray. 6 Carefully tip the balance over backwards, until it is lying on its back.

Installation and Putting into Operation20 Semi-Micro Balances

7 Remove the cap (1) and retain it. The hanger (2) for

weighing below the balance is easily accessible now.

8 Carefully turn the balance to its normal position and

reinstall all components in the reverse order.

Installation and Putting into Operation 21Semi-Micro Balances

5 The Menu

5.1 What is in the menu ?

The menu allows you to match your balance to your specific weighing needs. In the menu you can change the settings of your balance and activate functions. The main menu has 4 different menus and these contains different topics, each of which allows you various selection possibilities. Menu item PROTECT see chapter Description of menu topics > Main

menu.

Menu BASIC

Topic Description

DATE

TIME

UNIT 1

UNIT 2

KEY BEEP

STAB.BEEP

RESET

Menu ADVANCED

Topic Description

WEIG.MODE

ENVIRON.

CAL

ADJ.CUST.F

FACT

FACT PRT.

DATE.FORM

TIME.FORM

RECALL

SHUTOFF

BCKLIGHT

DISPLAY

AUTOZERO

ZERO RNG

LANGUAGE

ASSIGN:F1

ASSIGN:F2

ASSIGN:F3

DIAGNOSE

SERV.ICON

SRV.D.RST

Setting the current date.

Setting the current time.

Specification of the 1st weight unit in which the balance should show the result.

Specification of the 2nd weight unit in which the balance should show the result.

Setting the key beep level.

Setting the stability beep level.

Call up of the factory settings.

Adapting the balance to the weighing mode.

Matching the balance to the ambient conditions.

Settings for the type of adjustment (calibration).

Executing customer fine adjustment.

Settings for fully automatic balance adjustment based on a selected time.

Switching the automatic FACT printout on or off.

Setting the date format.

Preselection of the time format.

Switching the application recall for storing stable weights on or off.

Setting the time after which the balance should be switched off automatically.

Setting the time after which the display backlight should be switched off automatically.

Adjusting the brightness and contrast of the display.

Switching the automatic zero correction (Autozero) on or off.

Setting the zero limit of the zero/tare key.

Setting the preferred language.

Selection of assigned F1 key application and entering their parameter settings.

Selection of assigned F2 key application and entering their parameter settings.

Selection of assigned F3 key application and entering their parameter settings.

Starting a diagnostic application.

Switching the service icon (service reminder) on or off.

Reset service date and hours (service reminder).

The Menu22 Semi-Micro Balances

Menu INT.FACE

406.2

¢¢¢¢

ADVANCED

BASIC

TIME

DATE

Topic Description

RS232

HEADER

SINGLE

SIGN.L

LINE.FEED

ZERO PRT.

COM.SET

BAUDRATE

BIT/PAR.

STOPBIT

HD.SHAKE

RS.TX.E.O.L.

RS CHAR

USB

USB COM.S.

USB E.O.L.

USB CHAR

INTERVAL

ERGOSENS

Matching the serial interface RS232C to a peripheral unit.

Setting the header for printout of individual values.

Setting the information for printout of individual values.

Setting the footer for printout of individual values.

Setting line feed for printout of individual values.

Setting the auto print function for printing zero.

Setting the data communication format of the serial interface RS232C.

Setting the transfer speed of the serial interface RS232C.

Setting the character format (Bit/Parity) of the serial interface RS232C.

Setting the character format (stop bit) of the serial interface RS232C.

Setting the transfer protocol (Handshake) of the serial interface RS232C.

Setting the end of line format of the serial interface RS232C (outgoing data).

Setting the char set of the serial interface RS232C.

Matching the USB interface to a peripheral unit.

Setting the data communication format of the USB interface.

Setting the end of line format of the USB interface.

Setting the char set of the USB interface.

Selection of the time interval for the simulated print key press.

Settings for external key e.g. METTLER TOLEDO ErgoSens

5.2 Menu operation

In this section you will learn how to work with the menu.

Select menu

1 Press to activate main menu.

ð The first menu BASIC is displayed (except menu

protection is active).

2 Press

up + / – keys).

3 Press

Note

The menu selection BASIC, ADVANCED or INT.FACE can not be saved. The selection PROTECT must be saved.

Select menu topic

1 Press .

ð The next menu topic appears in the display.

2 Press

menu topic.

3 Press – key to return to the previous menu topic.

repeatedly to change menu (Scrolling down/

to confirm the selection.

or the + key, the balance switches to the next

Change settings in a selected menu topic

The >> flashing symbol in the display indicates selectable options available.

The Menu 23Semi-Micro Balances

ENVIRON.

STABLE

ENVIRON.

1 Press .

+ 01.2500

+ 01.6500

SAVE:YES

SAVE:NO

ð The display shows the current setting in the

selected menu topic.

2 Press

selection.

3 Press – key to return to the previous selection.

ð After the last selection, the first is shown again.

4 Press

For store the setting, see section Saving settings and

closing the menu.

Change settings in a submenu selection

The same procedure as for menu topics.

or the + key, the balance switches to the next

to confirm the setting.

Input principle of numerical values

1 Press for input of numerical values. 2 Press

application). ð The selected digit or the selected value is blinking.

3 Press + to scroll up or – to scroll down for changing

digits or values.

4 Press

to select a digit or a value (depending on the

to confirm the input.

Saving settings and closing the menu

1 Press briefly to leave menu topic.

2 Press

ð Changes are saved.

3 Press

ð Changes are not saved.

4 Press

to execute SAVE:YES.

to execute SAVE:NO.

to toggle between SAVE:YES and SAVE:NO.

Cancel

− Press C for leaving menu topic or menu selection without saving.

Note

If no entry is made within 30 seconds, the balance reverts to last active application mode. Changes are not saved. If changes are made, the balance asks SAVE:NO.

5.3 Description of menu topic

In this section you will find information regarding the individual menu topics and the available selections.

5.3.1 Main menu

Selecting the menu.

BASIC The small BASIC menu for simple weighing is displayed.

ADVANCED The extended ADVANCED menu for further weighing settings is

displayed.

The Menu24 Semi-Micro Balances

Note

• The menu selection BASIC, ADVANCED or INT.FACE can not be saved.

• To activate PROTECT ON or OFF, this selection must be saved.

5.3.2 Basic menu

DATE – Date

Setting the current date according to date format.

Note

A reset of the balance will not change this setting.

TIME – Time

Setting the current time according to time format

INT.FACE The menu INT.FACE for all interface parameter settings for

peripheral devices e.g. printer is displayed.

PROTECT

Menu protection. protection of balance configurations against unmeant manipulation.

OFF Menu protection is off. (Factory setting)

ON Menu protection is on. The menu BASIC, ADVANCED and

INT.FACE are not displayed. This is indicated with

in the

display.

+1H

Set the current time forwards by 1 hour (to adjust summer or winter time). (Factory setting)

-1H

Set the current time backwards by 1 hour (to adjust summer or winter time).

SET TIME

Enter the current time.

Note

A reset of the balance will not change this setting.

UNIT 1 – Weight unit 1

Depending on requirements, the balance can operate with the following units (depending on the model)

Legal-for-trade

• Only those weight units allowed by the appropriate national legislation are selectable.

• With approved balances, this menu topic has a fixed setting and cannot be changed.

Units:

ozt

factory setting

not with 0.01 mg, 0.1 mg and 1 mg balances

with 0.01 mg, 0.1 mg and 1 mg balances

the Malaysian tael has the same value

Gram

Kilogram

Milligram

Carat

Pound

Ounce (avdp)

Ounce (troy)

Grain

dwt

mom

msg

tlh

tls

tlt

tola

baht

Pennyweight

Momme

Mesghal

Tael Hong Kong

Tael Singapore

Tael Taiwan

Tola

Baht

The Menu 25Semi-Micro Balances

UNIT 2 – Weight unit 2

If it is required to show the weighing results in weighing mode in an additional unit, the desired second weight unit can be selected in this menu topic (depending on the model). Units see UNIT 1. Select NO, if you do not want to use UNIT 2.

Legal-for-trade

Only those weight units allowed by the appropriate national legislation are selectable.

KEY BEEP – Key beep

This menu topic allows you to select the volume of the key beep. The according key beep is emitted during the setting.

MED Medium level (Factory setting)

HIGH

OFF

LOW

High level

Beep switched off

Low level

STAB.BEEP – Stability beep

If the unstable symbol disappears, the stability beep becomes active. This menu topic allows you to preselect the volume of the stability beep.

MED Medium level (Factory setting)

HIGH

OFF

LOW

High level

Beep switched off

Low level

RESET – Reset balance settings

This menu topic allows you to call-up the factory settings.

To toggle between YES? and NO? press

Note

A reset of the balance will not change the DATE, TIME and ZERO RNG settings.

5.3.3 Advanced menu

WEIG.MODE – Weighing mode settings

This setting can be used to to adapt the balance to the weighing mode.

ENVIRON. – Environment settings

This setting can be used to match your balance to the ambient conditions.

(or + or –).

UNIVERS. For all standard weighing applications. (Factory setting)

DOSING

STANDARD

UNSTABLE

STABLE

For dosing liquid or powdery products. With this setting, the balance responds very quickly to the smallest changes in weight.

Setting for an average working environment subject to moderate variations in the ambient conditions. (Factory setting)

Setting for a working environment where the conditions are continuously changing.

Setting for a working environment which is practically free from drafts and vibrations.

CAL – Adjustment (calibration)

In this menu topic you can preselect the function of the external weights by pressing the adjustment (calibration) are printed out.

ADJ.OFF The adjustment is switched off. The key has no function.

The Menu26 Semi-Micro Balances

key. If you have attached a printer to your balance, the data of the

key. Your balance can be adjusted with internal or

ADJ.INT Internal adjustment: adjustment is performed at a keystroke with

the built-in weight (depending on the model, see technical data).

ADJ.EXT External adjustment: adjustment is performed at a keystroke with

a selectable external weight.

100.00 g Defining the external adjustment weight: define the weight of the external adjustment weight (in grams).

Factory setting: depends on the model.

ADJ.CUST.F – Customer fine adjustment

At this menu topic you can fine-adjust the internal weights. Further information refer to chapter Customer fine adjustment.

EXECUTE Start customer fine adjustment ADJ.CUST.F.

RESET Deactivate customer fine adjustment after confirming with YES?.

NO?

YES?

No deactivation.

Confirm to deactivation.

FACT – Fully automatic adjustment

Fully automatic internal adjustment (calibration) FACT (Fully Automatic Calibration Technology) provides fully automatic balance adjustment based on temperature criteria and on preselected time.

TIME

12:00

OFF FACT is switched off.

Execute FACT (with selected time).

Specify the time for a fully automatic adjustment to take place every day.

Factory setting: 12:00 (according to time format)

FACT PRT. – Protocol trigger for FACT

This setting specifies whether an adjustment report should be printed automatically.

Note: this menu topic does not affect the printing of adjustments with an internal or external adjustment

weight.

OFF Protocol switched off: if the balance adjusts automatically

(FACT), a protocol is not printed out.

Protocol switched on: a record is printed out after every automatic adjustment of the balance (FACT).

Note: the protocol is printed out without a line for signatures.

DATE.FORM – Date format

This menu topic allows you to preselect the date format. The following date formats are available:

Display examples Printing examples

DD.MM.Y

MM/DD/Y

Y-MM-DD

D.MMM Y

MMM D Y

Factory setting: DD.MM.Y

01.02.2009 01.02.2009

02/01/09 02/01/2009

09-02-01 2009-02-01

1.FEB.09 1.FEB 2009

FEB.1.09 FEB 1 2009

TIME.FORM – Time format

This menu topic allows you to preselect the time format. The following date formats are available:

Display examples

The Menu 27Semi-Micro Balances

24:MM

12:MM

24.MM

12.MM

Factory setting: 24:MM

15:04

3:04 PM

15.04

3.04 PM

RECALL – Recall

This menu topic allows you to switch the RECALL function on or off. When it is switched on recall stores the last stable weight if the absolute display value was bigger than 10d.

OFF

Note: the recall value is displayed with an asterisk and cannot be printed.

RECALL switched off (Factory setting)

RECALL switched on

SHUTOFF – Automatic shutoff

If the automatic shutoff function is activated, the balance automatically switches itself off after a preselected time of inactivity (i.e. with no key being pressed or changes of weight occurring etc.) and is switched to the standby mode.

A.OFF 10 min Automatic shutoff after 10 minutes of inactivity. (Factory setting)

A.OFF – Automatic shutoff not activated.

A.OFF 2 min Automatic shutoff after 2 minutes of inactivity.

A.OFF 5 min Automatic shutoff after 5 minutes of inactivity.

BCKLIGHT – Backlight

Under this menu topic, the display backlight can be switched off automatically. If the automatic switch-off is activated, the backlight will turn off automatically after the selected period of inactivity has elapsed. The backlight is reactivated when a key is pressed or the weight is changed.

B.L. ON Backlight is always on. (Factory setting)

B.L. 30 s Automatic switch-off after 30 seconds inactivity.

B.L. 1 min Automatic switch-off after 1 minute inactivity.

B.L. 2 min Automatic switch-off after 2 minutes inactivity.

B.L. 5 min Automatic switch-off after 5 minutes inactivity.

DISPLAY – Display settings

This menu topic allows you to adjust brightness and contrast of the display.

BRIGHTN

50% Factory setting: 50%

CONTRAST

75% Factory setting: 75%

To set the brightness in 1% steps.

To set the contrast in 1% steps.

AUTOZERO – Automatic zero setting

This menu topic allows you to switch the automatic zero setting on or off.

ON AUTOZERO switched on (Factory setting). The automatic zero

setting continuously corrects possible variations in the zero point that might be caused through small amounts of contamination on the weighing pan.

OFF AUTOZERO switched off. The zero point is not automatically

corrected. This setting is advantageous for special applications (e.g. evaporation measurements).

The Menu28 Semi-Micro Balances

Legal-for-trade

With approved balances, this setting is not available in selected countries.

ZERO RNG – Zero range

This menu topic allows you to set a zero limit for the

key will execute a zero. Above this limit the key will execute a tare.

1.2 g

To set the upper limit of the zero setting range as weight in the definition unit of the balance. (Factory setting: 0.5% of weighing range)

Note: with approved balances, this setting is not available

and fixed to 3e (only available in selected countries).

key. Up to and including this limit the

Note

A reset of the balance will not change this setting.

LANGUAGE – Language

Factory setting: generally, the language of the destination country (if available) or English is set.

The following languages are available:

ENGLISH

DEUTSCH

FRANCAIS

ESPANOL

ITALIANO

RUSSIAN

РУССКИИ

English

German

French

Spanish

Italian

Russian

POLSKI

CESKY

MAGYAR

NEDERL.

BR.PORTUG.

Polish

Czech

Hungarian

Dutch

Brazil Portuguese

ASSIGN:F1 – Assign application key F1

At this menu topic you can assign an application to the F1 key. The following applications are available (depending on the model):

COUNTING Piece counting (Factory setting)

PERCENT

STAT

FORMULA

TOTALING

FACTOR M

FACTOR D

DENSITY

PIPETTE

Percent weighing

Statistics

Formulation / Net total

Totaling

Multiplication factor

Division factor

Density

Pipette check

ASSIGN:F2 – Assign application key F2

At this menu topic you can assign an application to the F2 key. The following applications are available (depending on the model):

PERCENT Percent weighing (Factory setting)

STAT

FORMULA

TOTALING

FACTOR M

FACTOR D

DENSITY

PIPETTE

Statistics

Formulation / Net total

Totaling

Multiplication factor

Division factor

Density

Pipette check

The Menu 29Semi-Micro Balances

COUNTING

Piece counting

ASSIGN:F3 – Assign application key F3

At this menu topic you can assign an application to the F3 key. The following applications are available (depending on the model):

STAT Statistics (Factory setting)

FORMULA

TOTALING

FACTOR M

FACTOR D

DENSITY

PIPETTE

R. TEST

COUNTING

PERCENT

Formulation / Net total

Totaling

Multiplication factor

Division factor

Density

Pipette check

Routine test

Piece counting

Percent weighing

DIAGNOSE – Diagnostics application

At this menu topic you can start a diagnostic application. For more information see chapter Application diagnostics.

The following diagnostics are available:

REPEAT.T

DISPLAY

KEYPAD T

CAL.MOT. T

BAL.HIST

CAL.HIST

BAL.INFO

PROVIDER

Repeatability test (models with internal weights only)

Display test

Key test

Motor test (models with internal weights only)

Balance history

Calibration history

Balance information

Service provider information

SERV.ICON – Service reminder

This menu topic allows you to switch the service reminder

ON Service reminder

on or off.

switched on (factory setting).You will be informed after a preset time (e.g. one year or 8000 operating hours) to call service for recalibration. This will be indicated by the flashing service icon:

OFF Service reminder

switched off.

. (Factory setting)

SRV.D.RST – Service date reset

This menu topic allows you to reset service date and hours.

Note

This menu topic is only available if SERV.ICON setting ON was selected.

To toggle between YES? and NO? press

RS CHAR – Char set RS232C

(or + or -).

At this menu topic you can set the character set of the transmitted data to different RS232C serial receivers.

IBM/DOS Char set IBM/DOS (Factory setting)

ANSI/WIN

Char set ANSI/WINDOWS

The Menu30 Semi-Micro Balances

Note

• Not visible for 2nd display.

• Each device has separate settings.

5.3.4 Interface menu

RS232 – RS232C interface

At this menu topic you can select the peripheral device connected to the RS232C interface and specify how the data is transmitted.

PRINTER Connection to a printer. (Factory setting)

Only one printer possible.

Refer to your printer documentation for recommended printer settings.

PRT.STAB

PRT.AUTO

PRT.ALL

PC-DIR.

PRT.STAB

PRT.AUTO

PRT.ALL

HOST

SEND.OFF Send mode switched off. (Factory setting)

SEND.STB

SEND.CONT

SEND.AUTO

SEND.ALL

2.DISPLAY

If the printed. (Factory setting)

Every stable weight value will be printed, without pressing the key.

If the regardless of stability.

Connection to a PC: the balance can send data (as a keyboard) to the PC used for PC applications e.g. Excel. The balance sends the weight value without the unit to the PC.

If the followed by an enter. (Factory setting)

Every stable weight value will be sent followed by an enter, without pressing the

If the an enter regardless of stability.

Connection to a PC, barcode reader etc.: the balance can send data to the PC and receive commands or data from the PC).

If the

All weight value updates will be sent regardless of stability, without pressing the

Every stable weight value will be sent, without pressing the key.

If the of stability.

Connection of an optional auxiliary display unit. The transmission parameters cannot be selected. Settings are automatically set.

key is pressed, the next stable weight value will be

key is pressed, the weight value will be printed

key is pressed, the next stable weight value will be sent

key.

key is pressed, the weight value will be sent followed by

key is pressed, the next stable weight value will be sent.

key.

key is pressed, the weight value will be sent regardless

NOTICE

Risk of damage to the device due voltage on connector

Devices could be damaged because of the voltage on connector Pin 9.

− Make sure that no other device is connected at COM1 as a 2nd display.

The Menu 31Semi-Micro Balances

Important

• If you select 2nd display 2.DISPLAY, first make sure that no

other device is connected at COM1 as a 2nd display. Necessary for powering the 2nd display, see chapter

Interface specification.

HEADER – Options for the printout header of individual values

This menu topic allows you to specify the information that is to be printed at the top of the printout for every individual weighing results (after pressing

Note

This menu topic is only available if PRINTER setting was selected.

NO The header is not be printed. (Factory setting)

DAT / TIM

D / T / BAL

Date and time are printed.

Date, time and balance information (Balance type, SNR, Balance ID) are printed.

Balance ID only if set.

SINGLE – Options for printing out the result of individual values

This menu topic allows you to specify the information that is to be printed for every individual weighing result (after pressing

Note: this menu topic is only available if PRINTER setting was selected.

NET

The value of the net weight from the current weighing is printed. (Factory setting)

G / T / N

The values of the gross weight, the tare weight and the net weight are printed.

SIGN.L – Options for the printout footer for signature line of individual values

This menu topic allows you to set a footer for signature at the bottom of the printout for every individual weighing result (after pressing

Note: this menu topic is only available if PRINTER setting was selected.

OFF The signature footer is not be printed. (Factory setting)

The signature footer is printed.

LINE.FEED – Options for complete the printout of individual values

This menu topic allows you to specify the number of blank lines to complete the printout (line feed) for every individual weighing result (after pressing

Note: this menu topic is only available if PRINTER setting was selected.

0 Possible numbers of blank lines: 0 to 99. (Factory setting = 0)

ZERO PRT. – Options for PRT.AUTO

This menu topic allows you to specify the auto print function PRT.AUTO for printing zero YES or NO.

OFF Zero is not be printed (Zero +/- 3d). (Factory setting)

Zero is always printed.

Note: this menu topic is only available if PRT.AUTO function of the PRINTER or PC-DIR. was selected.

The Menu32 Semi-Micro Balances

COM.SET – Options for the data communication format (RS232C) (HOST)

This menu topic allows you to set the data format depending on which peripheral device is connected.

Note: this menu topic is only available if HOST setting was selected.

MT-SICS The MT-SICS data transfer formats is used. (Factory setting)

For more information see chapter MT-SICS Interface Commands and Functions.

MT-PM

The following PM balance commands are supported: S Send value SI Send immediate value SIR Send immediate value and repeat SR Send value and repeat SNR Send next value and repeat T Tare TI Tare immediately B Base *) MI Modify ambient vibration MZ Modify auto zero M Modified settings reset ID Identify CA Calibrate D Display (only symbol N and G available) *) Limitation:

• Negative values are limited up to the current tare value.

• B command is additive.

• The sum of the B values plus the previous tare value, before a

"TA", "T" or "Z" is sent, must be less than the total weighing range.

SART

The following Sartorius commands are supported: K Ambient conditions: very stable L Ambient conditions: stable M Ambient conditions: unstable N Ambient conditions: very unstable O Block keys P Print key (print, auto print; activate or block) Q Acoustic signal R Unblock keys S Restart/self-test T Tare key W Calibration/adjustment (depending on the menu setting)

Z Internal calibration/adjustment

**)

f0_ Function key (F) f1_ Function key (CAL) s3_ C key x0_ Perform internal calibration

**)

x1_ Print balance/scale model

The Menu 33Semi-Micro Balances

x2_ Print weighing cell serial number x3_ Print software version

may be inaccessible on verified balances/scales

**)

only on models with built-in motorized calibration weight

Functionality mapping

HOST settings: Sartorius printer settings:

SEND.OFF

SEND.STB

SEND.ALL

SEND.CONT

SEND.AUTO

not applicable

manually print with stability

manually print without stability

automatically print without stability

similar applicable to automatically print when load is changed

BAUDRATE – Baud rate RS232C

This menu topic allows you to match the data transmission to different serial RS232C receivers. The baud rate (data transfer rate) determines the speed of transmission via the serial interface. For problem-free data transmission the sending and receiving devices must be set at the same value.

The following settings are available: 600 bd, 1200 bd, 2400 bd, 4800 bd, 9600 bd, 19200 and 38400 bd. (default: 9600 bd)

Note

• Not visible for 2nd display.

• Each device has separate settings.

BIT/PAR. – Bit/Parity RS232C

At this menu topic you can set the character format for the attached RS232C serial peripheral device.

8/NO 8 data bits/no parity (Factory setting)

7/NO

7/MARK

7/SPACE

7/EVEN

7/ODD

7 data bits/no parity

7 data bits/mark parity

7 data bits/space parity

7 data bits/even parity

7 data bits/odd parity

Note

• Not visible for 2nd display.

• Each device has separate settings.

STOPBIT – Stop bits RS232C

At this menu topic you can set the stop bits of the transmitted data to different RS232C serial receivers.

1 BIT 1 Stop bit (Factory setting)

2 BITS

2 Stop bits

HD.SHAKE – Handshake RS232C

This menu topic allows you to match the data transmission to different RS232C serial receivers.

XON/XOFF Software handshake (XON/XOFF) (Factory setting)

RTS/CTS

OFF

Hardware handshake (RTS/CTS)

No handshake

The Menu34 Semi-Micro Balances

Note

• Not visible for 2nd display.

• Each device has separate settings.

RS.TX.E.O.L. – End of line RS232C

At this menu topic you can set the end of line character of the transmitted outgoing data to different RS232C serial receivers.

(CR)(LF)

<CR><LF> Carriage Return followed by Line feed (ASCII-Codes 013+010) (Factory setting)

(CR)

(LF)

(TAB)

<CR> Carriage Return (ASCII-Code 013)

<LF> Line feed (ASCII-Code 010)

<TAB> Tabulator to the right (ASCII-Code 009), only settable if

PC-DIR. is selected.

Note

• Not visible for 2nd display.

• Each device has separate settings.

RS CHAR – Char set RS232C

At this menu topic you can set the character set of the transmitted data to different RS232C serial receivers.

IBM/DOS Char set IBM/DOS (Factory setting)

ANSI/WIN

Char set ANSI/WINDOWS

Note

• Not visible for 2nd display.

• Each device has separate settings.

USB – USB interface

At this menu topic you can select the mode of the USB device interface and specify how the data is transmitted.

NOTICE

Disconnect the USB connection from the balance prior to changing settings.

Note

• This port is not usable for printers or displays.

PC-DIR.

SEND.OFF Send mode switched off. (Factory setting)

SEND.STB

SEND.CONT

SEND.AUTO

SEND.ALL

HOST

Connection to a PC: the balance can send data (as a keyboard) to the PC used for PC applications e.g. Excel.

Note: the balance sends the weight value without the unit to

the PC.

If the

key is pressed, the next stable weight value will be sent.

All weight value updates will be sent regardless of stability, without pressing the

key.

Every stable weight value will be sent, without pressing the key.

If the

key is pressed, the weight value will be sent regardless

of stability. Connection to a PC, Barcode Reader etc.: the balance can send

data to the PC and receive commands or data from the PC).

The Menu 35Semi-Micro Balances

SEND.OFF Send mode switched off. (Factory setting)

SEND.STB

SEND.CONT

SEND.AUTO

If the

All weight value updates will be sent regardless of stability, without pressing the

Every stable weight value will be sent, without pressing the

key is pressed, the next stable weight value will be sent.

key.

SEND.ALL

If the

key is pressed, the weight value will be sent regardless

of stability.

USB COM.S. – Options for the data communication format (USB)

This menu topic allows you to set the data format depending on which peripheral device is connected.

MT-SICS The MT-SICS data transfer formats is used. (Factory setting)

For more information see chapter MT-SICS Interface Commands

and Functions.

MT-PM

• Negative values are limited up to the current tare value.

• B command is additive.

• The sum of the B values plus the previous tare value, before a

"TA", "T" or "Z" is sent, must be less than the total weighing range.

SART

The Menu36 Semi-Micro Balances

Z Internal calibration/adjustment

**)

f0_ Function key (F) f1_ Function key (CAL) s3_ C key x0_ Perform internal calibration

**)

x1_ Print balance/scale model x2_ Print weighing cell serial number x3_ Print software version

may be inaccessible on verified balances/scales

**)

only on models with built-in motorized calibration weight

Functionality mapping

HOST settings: Sartorius printer settings:

SEND.OFF

SEND.STB

SEND.ALL

SEND.CONT

SEND.AUTO

not applicable

manually print with stability

manually print without stability

automatically print without stability

similar applicable to automatically print when load is changed

USB E.O.L. – End of line USB

At this menu topic you can set the end of line character of the transmitted data to USB device.

(CR)(LF)

<CR><LF> Carriage Return followed by Line feed (ASCII-Codes 013+010) (Factory setting)

(CR)

(LF)

<CR> Carriage Return (ASCII-Code 013)

<LF> Line feed (ASCII-Code 010)

(TAB) <TAB> Horizontal tab (ASCII-Code 011), only settable if PC-DIR.

is selected.

USB CHAR – Char set USB

At this menu topic you can set the character set of the transmitted data to USB device.

ANSI/WIN Char set ANSI/WINDOWS (Factory setting)

IBM/DOS

Char set IBM/DOS

INTERVAL – Print key simulation

At this menu topic you can activate a simulation of the

key. INTERVAL simulates a print key press every x

seconds.

Range: 0 to 65535 seconds 0 sec: disables the print key simulation

Factory setting: 0 sec

Note: the executed action is according to the configuration of the print key, see interface setting.

ERGOSENS – Settings for external key

The METTLER TOLEDO ErgoSens or external contact switches (optional, see section accessories) can be connected to the "Aux" connection and these can be used to execute certain weighing functions.

OFF Deactivate (Factory setting)

->0<-

Zero setting

The Menu 37Semi-Micro Balances

->T<-

Taring

———————————————————————————

Note for 2nd RS232C interface

• If an optional 2nd interface is installed, the menu topic is

displayed for each interface, e.g

BAUDRATE.1 for standard interface BAUDRATE.2 for optional 2nd interface

• Only one printer can be set if two RS232 interfaces are existing.

———————————————————————————

The Menu38 Semi-Micro Balances

6 Applications

COUNTNG

B C

FIX 10

PCS

10PCS

------

FIX 10

PCS

6.1 Application piece counting

The Piece counting application allows you to determine the number of pieces put on the weighing pan.

Requirement: the function COUNTING must be assigned to an Fx key. See advanced menu topic ASSIGN:Fx, factory setting: F1.

− Press and hold the appropriate assigned Fx key to activate the function COUNTING.

Piece counting first requires the setting of a reference weight, there are 4 possibilities

•

Setting the reference by multiple pieces with fix

reference values.

Setting the reference by multiple pieces with

•

variable reference values.

Setting the reference for 1 piece in weighing mode.

•

Setting the reference for 1 piece in manual mode.

Setting the reference by multiple pieces with fix reference values

1 Select a number of reference pieces by scrolling with

. Possible numbers* are 5, 10, 20 and 50.

2 Press

empty container on the weighing pan and press

3 Add the selected number of reference pieces to

container.

4 Press

to zero the balance. If using: place

to tare the balance.

to confirm.

Legal-for-trade

* with approved balances in selected countries: min 10.

Applications 39Semi-Micro Balances

Setting the reference by multiple pieces with variable reference values

25 PCS

---------

VAR.REF

PCS

REF.

PCS

REF.

0.00

PCS

2.74

---------

PCS.WGT

1 Select VAR.REF by scrolling with .

2 Press

3 Select a number of reference pieces by scrolling up +

key or down - key. Speed up by press and hold. Possible numbers* are 1 to 999.

4 Press

empty container on the weighing pan and press

5 Add the selected number of reference pieces to

container.

6 Press

to confirm.

to zero the balance. If using: place

to tare the balance.

to confirm.

Legal-for-trade

* with approved balances in selected countries: min 10.

Setting the reference for one piece in weighing mode

1 Select PCS.WGT by scrolling with .

2 Press

empty container on the weighing pan and press

3 Add one reference piece to container.

ð The weight of one piece is displayed.

4 Press

to zero the balance. If using: place

to tare the balance.

to confirm.

Legal-for-trade

With approved balances, this setting is not available in selected countries.

Applications40 Semi-Micro Balances

Setting the reference for one piece in manual mode

2.68

0PCS

2.74

PCS.WGT

2.74

812.7

PCS

1 Select PCS.WGT by scrolling with .

2 Press 3 Enter the final reference one piece weight by scrolling

up + key or down - key. Speed up by press and hold.

4 Press

to confirm.

Legal-for-trade

With approved balances, this setting is not available in selected countries.

Switching between manual mode and weighing mode

− Press to switch between manual and weighing mode.

ð By switching from weighing mode to manual mode the

weight value will be transferred and can be changed manually.

Note

if without any key press within 60 seconds or by pressing C, the balance returns to the previous active application.

On completion of the setting procedure, your balance is ready.

Switching between piece count and weight display

− Press key at any time to switch the display between piece display, weighing unit UNIT 1, RECALL value (if activated) and weighing unit UNIT 2 (if different from UNIT 1).

• The RECALL value is displayed with an asterisk (*)

and icon M and can not be printed.

• Take into account minimum values: min. reference weight = 10d (10 digits), min. piece weight* = 1d (1

digit)! * with approved balances in selected countries: min 3e

• The current reference weight remains stored until the reference setting is changed.

Terminate the application

Press and hold

to terminate the application and to return to the weighing application.

Applications 41Semi-Micro Balances

6.2 Application percent weighing

PERCENT

0.0

175.28

SET 100%

I00.0

175.28

¢¢¢¢

SET 100%

0.00

175.28

The Percent weighing application allows you to check a sample weight as percentage to a reference target weight.

Requirement: the function PERCENT must be assigned to an Fx key. See advanced menu topic ASSIGN:Fx, factory setting: F2.

− Press and hold the appropriate assigned Fx key to activate the function PERCENT.

Percent weighing first requires the setting of a reference weight that should corresponds to 100%, there are 2 possibilities

•

Setting the reference in manual mode (enter

100%).

Setting the reference in weighing mode (weigh

•

100%).

Setting the reference by manual mode (enter 100%)

1 Press to activate manual mode. 2 Select the reference target weight (100%) by scrolling

up + key or down – key. Speed up by press and hold.

3 Press

to confirm.

Setting the reference by weighing mode (weigh 100%)

1 Press to zero the balance. If using: place

empty container on the weighing pan and press

to tare the balance.

2 Load the reference weight (100%). Reference weight

must be at least +/- 10d.

to confirm.

3 Press

Switching between manual mode and weighing mode

− Press to switch between manual and weighing mode.

ð By switching from weighing mode to manual mode the

Applications42 Semi-Micro Balances

weight value will be transferred and can be changed manually.

Note

128.25

73.17

128250

128.25

if without any key press within 60 seconds or by pressing C, the balance returns to the previous active application.

On completion of the setting procedure, your balance is ready.

Switching between percent and weight display

− Press key at any time to switch the display between

percent display, weighing unit UNIT 1, RECALL value (if activated) and weighing unit UNIT 2 (if different from UNIT 1).

• The RECALL value is displayed with an asterisk (*)

and icon M and can not be printed.

• The current set weight remains stored until it is

redetermined.

Terminate the application

Press and hold

to terminate the application and to return to the weighing application.

Applications 43Semi-Micro Balances

6.3 Application statistics

CLEAR M?No

STAT

M .CLEARED

46.36

0.00

- 1 -

999

0.00

The Statistics application allows you to generate statistics of a series of weighing values. 1 to 999 values are possible.

Requirement: the function STAT must be assigned to an Fx key. See advanced menu topic ASSIGN:Fx. Connect a printer or a PC if present.

1 Press and hold the appropriate assigned Fx key to

activate the function STAT.

2 Press 3 Press

4 Press

If the memory is already cleared (at the first start of this application or sample counter is 0) the memory clear question will be not displayed.

Weighing the first sample weight

1 Press to zero the balance. 2 Load the first sample weight.

3 Press

ð The display shows the sample count - 1 - and the

4 When the sample counter is displayed you may press

and hold C to undo (drop) this sample.

5 Unload the first sample weight.

to continue the last statistics. to start a new statistical evaluation.

and select Yes to clear the memory.

current weight is stored as sample and the weight is printed out.

Weighing further sample weights

The same procedure as for the first sample weight.

• 1…999 samples are possible.

• The next value will be accepted if the sample weight is in the range 70% –130% of the current average

value. OUT OF RANGE will be displayed if the sample is not accepted.

Results

− Press , if the numbers of sample are greater than or equal to 2.

ð The results are displayed and printed.

Displayed results

1 Press

to show the next statistical value.

2 Press C to cancel displaying results and to continue weighing next sample.

Applications44 Semi-Micro Balances

530

S.DEV

3.961

S.REL

7.84

MIN

46.36

MAX

55.81

DIFF

9.45

SUM

252.65

Terminate the application

Press and hold

to terminate the application and to return to the weighing application.

0.5 seconds

number of samples

average

standard deviation

relative standard deviation

lowest value (minimum)

highest value (maximum)

different between the minimum

and the maximum

sum of all values

Applications 45Semi-Micro Balances

6.4 Application formulation (Net total)

CLEAR M?

FORMULA

M .CLEARED

-T1-

0.00



Net

10.33

0.00

The Formulation (Net total) application allows you to

• weigh in (add and store) up to 999 individual component weights and displays the total.

If a printer is connected, the component weights are printed individually and as a total.

• tare/pre-tare and store up to 999 container weights and displays the total. If a printer is

connected, the tare weights are printed out individually and as a total.

• fill up the sum of all component net weight values by adding a further component to a

higher value.

Requirement: the function FORMULA must be assigned to an Fx key. See advanced menu topic ASSIGN:Fx. Connect a printer or a PC if present.

Note

Connect a printer or a PC if present.

1 Press and hold the appropriate assigned Fx key to

activate the function FORMULA.

2 Press

3 Press

4 Press

If the memory is already cleared (sample and tare/pre-tare counter is zero) the memory clear question will be not displayed.

to continue formulation weighing.

or (+ or -) to start a new formulation.

and select Yes to clear the memory.

Tare container

If used.

1 Press to zero the balance. 2 Place the empty container on the weighing pan.

3 Press

to tare the balance.

ð The container is tared and the tare count - T1 - is

displayed and the tare weight is printed.

• If you pre-tare via MT-SICS (e.g. bar code reader) -

PT1 - is displayed.

• Zero range setting (menu topic ZERO RNG) has no

effect. The zero-limit is less than or equal 10d.

Applications46 Semi-Micro Balances

Weighing the first component weight

Net

T.TOTAL

452

G.TOTAL

546.79

N.TOTAL

94.03

FILL UP

1 Load the first component weight.

2 Press

ð The display briefly shows the component count - 1

- , the current weight is stored as sample and the

component weight is printed. The display is set back to zero.

Weighing further component weights

The same procedure as for the first component weight with the same or new container).

• 1…999 sample values are possible.

• max 999 tare values are possible.

• max 999 pre-tare values are possible.

Results

− Press , if the numbers of sample are greater than or

equal to 2. ð The results are displayed and printed.

Displayed results

1 Press

to show the next statistical value.

2 Press C to cancel displaying results and to continue weighing next component.

0.5 seconds

number of samples

sum of all tare values (T and

PT)

sum of all component gross

weight values

sum of all component net

weight values

Function FILL UP

This function allows you to add an additional component weight to the total weight of all components to reach a desired target weight (Fill up).

Starting the fill up function

1 Press + to activate the function FILL UP.

2 Press – to deactivate the function FILL UP.

Applications 47Semi-Micro Balances

Filling up with an additional component weight

Net

94.03

100.00

Net

0.00

The last total of the component weights is displayed.

1 Add component weight until the desired target weight is

reached.

2 Press ð The display briefly shows the next component count

marked with F, the current weight is stored as sample and the component weight is printed. The display is set back to zero.

to confirm.

Filling up further additional component weights

The same procedure, beginning with starting up the FILL UP function.

Terminate the application

Press and hold

to terminate the application and to return to the weighing application.

Applications48 Semi-Micro Balances

6.5 Application totaling

CLEAR M?

TOTALING

M .CLEARED

0.00

46.36

¢¢¢¢¢¢

- 1 -

999

0.00

¢¢

879

TOTAL

8789

The TOTALING application allows you to weigh in different samples to add their weight values and to totalize them. 1 to 999 samples are possible.

Requirement: the function TOTALING must be assigned to an Fx key. See advanced menu topic ASSIGN:Fx.

1 Press and hold the appropriate assigned Fx key to

activate the function TOTALING.

2 Press

3 Press

4 Press If the memory is already cleared (sample counter is 0) the

memory clear question will be not displayed.

Weighing in the sample weight

1 Press to zero the balance. If using: place empty

container on the weighing pan an press

the balance. 2 Load the first sample weight.

3 Press

ð The display shows the sample count - 1 - and the

4 When the sample counter is displayed you may press

and hold C to undo (drop) this sample.

5 Unload the first sample weight.

ð The display shows zero.

or (+ or -) to start a new totaling evaluation.

and select Yes to clear the memory.

to zero the balance.

current weight is stored.

to tare

Weighing in further sample weights

The same procedure as for the first sample weight.

• 1…999 samples are possible.

Results

− Press , if the numbers of sample are greater than or

Displayed results

1 Press

2 Press C to cancel.

equal to 2.

ð The results are displayed and printed.

to show the totalized value.

0.5 seconds

number of samples

totalized value

Applications 49Semi-Micro Balances

Terminate the application

Press and hold

to terminate the application and to return to the weighing application.

Applications50 Semi-Micro Balances

6.6 Application multiplication factor weighing

FACTOR M

SET F.MUL

0001.0000

0009.8

Fac

100

Fac

SET STEP

001.0

Stp

005.0

Stp

The Multiplication factor weighing application allows you to multiply the weight value (in grams) by a predefined factor (result = factor * weight) and have it calculated to a predefined number of decimal places.

Requirement: the function FACTOR M must be assigned to an Fx key. See advanced menu topic ASSIGN:Fx.

− Press and hold the appropriate assigned Fx key to

activate the function FACTOR M.

Setting the factor value

Zero for multiplication factor value is outside the allowed range, the error message FACTOR OUT OF RANGE will be displayed.

1 Press to execute SET.F.MUL.

ð Either the factor 1 appears as default value or the

factor that was saved most recently.

2 Press

ð The selected digit is blinking.

3 Press + to scroll up or – to scroll down to changing

digits. 4 Press

to select a digit.

to confirm (no automatic acceptance).

Setting the step value

SET.STEP appears in the display, and the program changes automatically to allow the display increments to be

entered. The smallest possible display increment appears as default value, or the last value that was saved. The allowed range for the step depends on the factor and the resolution of the balance. If it is outside the

allowed range the error message STEP OUT OF RANGE will be displayed.

1 Press to execute SET.STEP.

2 Press

ð The selected digit is blinking.

3 Press + to scroll up or – to scroll down to changing

digits. 4 Press if without any key press within 60 seconds or by pressing

C, the balance returns to the previous active application.

On completion of the setting procedure, your balance is ready.

to select a digit.

to confirm (no automatic acceptance).

Applications 51Semi-Micro Balances

Weighing procedure

9810

1000.02

1 Press to zero the balance. 2 Load sample weight. 3 Read the result.

ð The appropriate calculation is then made using the

weight of sample and the selected factor, the result

being displayed with the selected display step. No

units are displayed.

4 Unload sample weight.

Toggling between displaying the calculated value and the measured weight

− Press

key at any time to switch the display between percent display, weighing unit UNIT 1, RECALL

value (if activated) and weighing unit UNIT 2 (if different from UNIT 1).

Terminate the application

Press and hold

to terminate the application and to return to the weighing application.

Applications52 Semi-Micro Balances

6.7 Application division factor weighing

FACTOR D

SET F.DIV

0001.0000

009.8

100

Fac

SET STEP

0.0001

0.0050

Stp

The Division factor weighing divide a predefined factor by the weight value (in grams) (result = factor / weight) and have it rounded to a predefined number of decimal places.

Requirement: the function FACTOR D must be assigned to an Fx key. See advanced menu topic ASSIGN:Fx.

− Press and hold the appropriate assigned Fx key to

activate the function FACTOR D.

Setting the factor value

Zero for division factor value is outside the allowed range, the error message FACTOR OUT OF RANGE will be displayed.

1 Press to execute SET.F.DIV.

ð Either the factor 1 appears as default value or the

factor that was saved most recently.

2 Press

ð The selected digit is blinking.

3 Press + to scroll up or – to scroll down to changing

digits. 4 Press to confirm (no automatic acceptance).

to select a digit.

Setting the step value

SET.STEP appears in the display, and the program changes automatically to allow the display increments to be

allowed range the error message STEP OUT OF RANGE will be displayed.

1 Press to execute SET.STEP.

2 Press

3 Press + to scroll up or – to scroll down to changing

4 Press if without any key press within 60 seconds or by pressing

C, the balance returns to the previous active application.

On completion of the setting procedure, your balance is ready.

to select a digit.

ð The selected digit is blinking.

digits.

to confirm (no automatic acceptance).

Applications 53Semi-Micro Balances

Weighing procedure

0.010

1000.02

0.000

1 Press to zero the balance. 2 Load sample weight. 3 Read the result.

ð The appropriate calculation is then made using the

weight of sample and the selected factor, the result

being displayed with the selected display step. No

units are displayed.

4 Unload sample weight.

Toggling between displaying the calculated value and the measured weight

− Press

key at any time to switch the display between percent display, weighing unit UNIT 1, RECALL

value (if activated) and weighing unit UNIT 2 (if different from UNIT 1).

Terminate the application

Press and hold

to terminate the application and to return to the weighing application.

Applications54 Semi-Micro Balances

6.8 Application density

DENSITY

SOLID

LIQUID

WEIGH IN

60.0020

¢¢¢¢

The Density application allows you to determine the density of solid bodies and liquids. Determination of the density uses Archimedes' principle according to which a body immersed in a fluid undergoes an apparent loss in weight which is equal to the weight of the fluid it displaces.

To determine the density of solid bodies, we recommend you to work with the optional density kit which contains all the attachments and aids needed for convenient and precise density determination. To determine the density of liquids, you additionally need a sinker which you can also obtain from your METTLER TOLEDO dealer.

Note for performing of density determinations

• You can also use the hanger for weighing below the balance which belongs to your

balance.

• If a METTLER TOLEDO printer is attached to your balance, the settings will be automat-

ically recorded.

We recommend you to consult the operating instructions enclosed with the density kit.

Requirement: the function DENSITY must be assigned to an Fx key. See advanced menu topic ASSIGN:Fx. Density kit is installed.

− Press and hold the appropriate assigned Fx key to

activate the function DENSITY.

Setting the method for density determination

1 Select:

SOLID, the function for the density determination of

solids, or

LIQUID, the function for the density determination of

liquids with a sinker. 2 Press

to confirm.

Switching the display between user guidance and weighing

− Press to toggle the display between user guidance

and weighing.

Terminate the application

Press and hold

to terminate the application and to return to the weighing application.

Applications 55Semi-Micro Balances

6.8.1 Density determination of solids

H-2-0

ETHANOL

FREE

°C

20.0

°C

21.8

g/cc

01.00200

01.00000

PRESS EN

WEIGH IN AIR

WEIGH IN LIQUID

Setting the parameter of the auxiliary liquid

Method SOLID is set.

1 Press or (+ or -) to select the auxiliary liquid:

H-2-O for distilled water, ETHANOL or FREE for a freely

definable auxiliary liquid.

2 Press

If you have selected water or ethanol as the auxiliary liquid

1 Enter the current temperature of the auxiliary liquid

(read off on thermometer).

2 Change the value by scrolling up + or down -. The

temperature ranges from 10°C to 30.9°C.

3 Press The densities of distilled water and ethanol in the range

10°C to 30.9°C are stored in the balance.

If you have selected a freely definable auxiliary liquid

1 Enter the density of the auxiliary liquid at the current

temperature (read off on thermometer).

2 Press

ð The selected digit is blinking.

3 Press + to scroll up or – to scroll down to changing

digits.

4 Press if without any key press within 60 seconds or by pressing

C, the balance returns to the previous active application.

On completion of the setting procedure, your balance is ready.

Taring the balance is possible at any time.

The balance prompts you: PRESS ENTER TO START.

− Press to start. ð Tare/Zero is executed.

The balance prompts you to weigh the solid in air WEIGH IN AIR.

1 Load the solid. 2 Press The balance prompts you to weigh the solid in the

auxiliary liquid WEIGH IN LIQUID.

to confirm.

to select a digit.

to confirm.

to initiate the measurement.

1 Load the solid. 2 Press

ð The balance now shows the determined density of

Applications56 Semi-Micro Balances

to initiate the measurement.

the solid.

5.988

g/cc

• This result has already been corrected for the air

010.0000

cm3

012.0000

cm3

PRESS EN

WEIGH IN AIR

WEIGH IN LIQUID

1.000

g/cc

buoyancy. The buoyancy caused by the two immersed

wires (ø0.6mm) can be neglected.

− Press C the balance returns to PRESS ENTER TO

START.

Result

− Press .

ð The result will be printed.

6.8.2 Density determination of liquids

Setting the displacement volume of your sinker

Method LIQUID is set.

1 Press 2 Press to select a digit.

ð The selected digit is blinking.

3 Press + to scroll up or – to scroll down to changing

digits. 4 Press if without any key press within 60 seconds or by pressing

C, the balance returns to the previous active application.

On completion of the setting procedure, your balance is ready.

Taring the balance is possible at any time.

The balance prompts you: PRESS ENTER TO START.

− Press to start.

The balance prompts you to weigh the sinker in air WEIGH IN AIR.

to confirm the default value of 10.0 cm3 or change it if needed.

to confirm.

1 Position the sinker. 2 Press The balance prompts you to weigh the sinker in the liquid

WEIGH IN LIQUID.

1 Pour the liquid into the beaker. Make sure that the

2 Press

• This result has already been corrected for the air

− Press C the balance returns to PRESS ENTER TO

to initiate the measurement.

sinker is immersed by al least 1 cm in the liquid, and

that there are no air bubbles in the container.

to initiate the measurement.

ð The balance now shows the determined density of

the liquid at the current temperature (read off on the thermometer).

buoyancy. The buoyancy caused by the immersed wire

(ø 0.2 mm) of the sinker can be neglected.

START.

Applications 57Semi-Micro Balances

Result

− Press . ð The result will be printed.

6.8.3 Formulae used to calculate density

The DENSITY application is based on the formulae listed below.

Formulae for determining the density of solids with compensation for air density

= Density of the sample

A = Weight of the sample in air B = Weight of the sample in the auxiliary liquid V = Volume of the sample

= Density of the auxiliary liquid

= Density of air (0.0012 g/cm3)

= Weight correction factor (0.99985), to take the atmospheric buoyancy of the adjustment weight

into account

Formula for determining the density of liquids with compensation for air density

= Density of the liquid

P = Weight of the displaced liquid V = Volume of the sinker

= Density of air (0.0012 g/cm3)

= Weight correction factor (0.99985), to take the atmospheric buoyancy of the adjustment weight

into account

Applications58 Semi-Micro Balances

Density of H2O given in g/cm3, according to the "American Institute of Physics Handbook".

Density of C2H5OH given in g/cm3, according to the "American Institute of Physics Handbook".

Applications 59Semi-Micro Balances

6.9 Application pipette check

PIPETTE

H20 20.0 °C

H20 21.3 °C

1013 hPa

985 hPa

The PipetteCheck application allows you to check the volume of pipettes from any manufacturer, with the gravimetric method. For checking pipettes we recommend using the optional METTLER TOLEDO evaporation trap. This evaporation trap minimizes moisture evaporation for more accurate results.

Maximum 3 different test volumes are possible for checking the pipette. The test volumes recommended by the manufacturer are usually 10%, 50%, and 100% of the nominal volume of the pipette. The liquid to determine the volume of the pipette is water and the following conditions must be known:

• Current temperature of the test liquid

• Current barometric air pressure of the test environment

• Current relative humidity of the test environment

Based on the test results on the printout of the statistic and your specifications, you can decided whether the pipette can be used for further applications (successfully or failed).

Requirement

• A printer must be connected.

• The evaporation trap is ready installed (recommended).

• The function PIPETTE must be assigned to an Fx key. See advanced menu topic

ASSIGN:Fx. Density kit is installed.

− Press and hold the appropriate assigned Fx key to activate the function PIPETTE.

Setup

Setting the test liquid temperature

The setting range is 15.0°C up to 30.0°C.

1 Press + to scroll up or – to scroll down to changing

digits.

2 Press

to confirm (no automatic acceptance).

Setting the barometric air pressure of the test environment

The setting range is 850 hPa up to 1090 hPa.

1 Press + to scroll up or – to scroll down to changing

digits.

2 Press

to confirm (no automatic acceptance).

Setting the relative humidity of the test environment

The setting range is 20% up to 90%.

Applications60 Semi-Micro Balances

50 %

61 %

1 Press + to scroll up or – to scroll down to changing

S.SIZE 4

S.SIZE 10

00250

µl

00100

digits.

2 Press

Setting the sample size

Set how many measurements should be performed for the selected test volume before the measurement cycle is complete. The setting range is from 4 up to 10.

1 Select the sample size. 2 Press 3 Press

to confirm (no automatic acceptance).

to toggle between the values 4 to 10. to confirm (no automatic acceptance).

Setting the test volume

The setting range is 1µl up to 20000µl. 1 Press to select a digit.

ð The selected digit is blinking.

2 Press + to scroll up or – to scroll down to changing

digits.

3 Press

check. ð Application header and settings are printed.

if without any key press within 60 seconds or by pressing C, the balance returns to the previous active application.

to confirm the setting and to start the pipette

Applications 61Semi-Micro Balances

Pipette check start

11.34

µl

SAMPLE I

Sample 4 or 10

0.00

µl

SAMPLE 2

0.00

µl

SYS.ERR

1.24

µl

abs

SYS.ERR

10.91

rel

RAND.ERR

0.13

µl

abs

RAND.ERR

1.32

rel

NEW T.VOL

Yes

Sample1 appears briefly on the display (Sample counter).

The balance shows zero.

1 Weigh the first sample. 2 Press

to confirm.

ð The weight of sample1 is stored and printed.

3 Weigh next samples with the same procedure as for

the first sample, until the defined number of samples is reached.

ð The statistics is printed and shown on the display.

Displayed results

1 Press

(several times) to show all statistic values on the display first.

2 Press C to continue the pipette check.

systematic error, absolute

0.5 seconds

systematic error, relative

random error, absolute

random error, relative

Continue pipette check

• Continue the check with another test volume. Three different test volumes are possible. After three test

volume, the balance terminates the check of the pipette automatically.

• Terminate pipette check.

NEW T.VOL appears on the display.

1 Select YES to continue or select NO to terminate the

check of the pipette.

2 Press

3 Press

Continue next pipette check

1 Set the next test volume.

to toggle between YES or NO.

to confirm.

Applications62 Semi-Micro Balances

00250

µl

00100

2 Press to select a digit.

ð The selected digit is blinking.

3 Press + to scroll up or – to scroll down to changing

digits.

4 Press

check. ð The sample header with the new test volume is

5 To continue, refer to section "Pipette check start". Same

procedure for further test volume.

to confirm the setting and to start the pipette

printed.

Terminate pipette check

The printout will be completed and the balance returns to the weighing application.

Applications 63Semi-Micro Balances

6.10 Application routine test

R.TEST

TARE

USE

WGT

TEST

Ref

5000.00

CTRL. LMT

Ref

2.50

The Routine test application allows you to determine the sensitivity of the balance. More about periodic sensitivity tests (routine tests), See GWP® (Good Weighing Practice) on

http://www.mt.com/gwp.

GWP gives clear recommendation for routine testing:

• how should I test my balance?

• how often?

• where can I reduce efforts?

More about test weights, see

Requirement

• The function R. TEST must be assigned to an F3 key. See advanced menu topic

ASSIGN:F3.

• It is recommended to connect a printer or a PC to the balance for showing the results.

1 Press and hold the appropriate assigned Fx key to

activate the function R. TEST.

2 Press

use a tare weigh for test.

3 Press

4 Press

• It is recommended to test the sensitivity without tare

load. (Factory setting: No).

• If using tare: Make sure that tare weight plus test weight is not exceeding max. load.

or (+ or -) to toggle between No or Yes to

to confirm.

to zero or tare the balance.

http://www.mt.com/weights.

Setting the reference test weight value

The default value of the test weight: Next smaller OIML weight than the maximum load of your balance according to the GWP® recommendation.

1 For changing the value, press + to scroll up or – to

scroll down. Progressing speed by press and hold.

2 Press

to confirm.

Setting the control limit

The default value of the control limit: Test weight × weighing process tolerance / 2 Example: 5000 g × 0.1% / 2 = 2.50 g.

1 For changing the value, press + to scroll up or – to

scroll down. Progressing speed by press and hold.

2 Press

to confirm.

Setting the warning limit

The default value of the warning limit: Warning limit = control limit / safety factor Example: 2.5 g / 2 = 1.25 g.

Applications64 Semi-Micro Balances

LMT

WARN.

Ref

1.25

1 For changing the value, press + to scroll up or – to

PRESS EN

5000.00

scroll down. Progressing speed by press and hold. 2 Press The default values of control limit and the warning limit are

evaluated according the GWP recommendation. These are based under the assumption that the weighing process tolerance is 0.1% and the safety factor is 2.

On completion of the setting procedure, your balance is ready.

The test weight must be acclimatized to the ambient temperature of the balance. 1 Press to start.

ð Follow the instructions on the display. 2 Load the test weight (displayed value), when the test

weight value is flashing. ð The printout starts after the weighing pan is unloaded.

to confirm.

Exit the current test procedure

− Press and hold

for executing a new application.

What if warning limit or control limit are FAILED?

The "SOP for Periodic Sensitivity Tests (Routine Tests)" provides information about measures when routine tests fail.

Find a download version of these SOPs on http://www.mt.com/gwp, link http://http://www.mt.com/

ch/en/home/library/operating-instructions/laboratory-weighing/ free_standard_operating_procedures_for_balance_straightforward_testing.html

Content of SOP

• Preparation

• Test procedure

• Evaluation

• Deviation

– If Warning Limit FAILED

– If Control Limit FAILED

Applications 65Semi-Micro Balances

6.11 Application diagnostics

The Diagnostics application allows you to carry out predefined diagnostics tests and to view or print predefined sets of balance information. This diagnostics tool helps you find errors faster and more efficiently. Requirement: A printer or a PC is connected to the balance for showing the results.

1 Activate ADVANCED menu.

2 Press

3 Press

6.11.1 Repeatability test

The repeatability test allows you to repeat tests with internal weight for a given number of times.

Note: on models with internal weights only.

1 Press

ð R. TST. 10 appears on the display.

2 Enter the number of times (blinking) by pressing + or –. Possible values are 5, 10 (factory setting), 20,

50, 100 times.

3 Press

ð The message RUNNING REPEAT TEST appears till the tests are completed.

4 Press 5 Press

6 Press C to cancel the test procedure.

ð The balance will return to the topic DIAGNOSE.

Sample information displayed

to activate the function DIAGNOSE.

to select appropriate tests.

to activate repeatability test REPEAT.T.

to start the test.

to print the test information.

to scroll forward through the displayed list.

Displayed for 0.5 s Display

S DEV

MAX. TEMP

MIN. TEMP

MEAN. TEMP

TOT.TIME

* 0.004 g

21.2 °C

21.0 °C

21.1 °C

00:01:26

Examples

Repeatability test is a tool to do functional check with the balance. It may be performed:

• To check function of balance

– during installation to store print out with installation documents. – after preventative maintenance to store print out with installation maintenance report. – when remarkable decrease of weighing performance occurs, so that you can email/fax print out to

service support provider for diagnose purposes.

• To develop the optimal environment settings, see menu topic ENVIRON..

Measure the time you need to perform repeatability test with each STABLE, STANDARD and UNSTABLE setting. The setting with the fastest total time suits best for the existing environmental conditions.

6.11.2 Display test

The display test allows you to test the display of the balance.

1 Press

ð All possible segments and icons on the display will illuminate.

2 Press

Applications66 Semi-Micro Balances

to start DISPLAY.

to print the test information.

3 Press C to cancel the test procedure.

ð The balance will return to the topic DIAGNOSE.

6.11.3 Key test

The key test allows you to test the keys of the balance.

1 Press

ð The message KEY TEST - PRESS KEY TO BE TESTED is displayed scrolling during the duration of the

key test.

2 Press every key briefly. Each press of a key beeps and echoes with OK on the display.

3 Second press C key to print the test information.

ð The test procedure will be cancelled and the balance will return to the topic DIAGNOSE. If a key has not

been tested before printing, then the test results will be indicated with a ---- line.

Sample information displayed

to start KEYPAD T.

Key Display

1/10 D OK

MENU OK

CAL OK

PRINT OK

6.11.4 Motor test

The motor test allows you to test the calibration motor of the balance.

Note: on models with internal weight only.

1 Press

ð RUNNING is displayed during the motor test. A motor test is deemed successful when all the motor

2 Press

3 Press C to cancel the test procedure.

ð The balance will return to the topic DIAGNOSE.

to start CAL.MOT. T.

positions have been successfully tested. At the end of the test, the test information will be printed.

for printout.

6.11.5 Balance history

The balance history function allows you to view and print the history of the balance.

1 Press

2 Press 3 Press

4 Press C to cancel the test procedure.

ð The balance will return to the topic DIAGNOSE.

to start BAL.HIST.

for printout. to scroll forward through the displayed list of balance history information.

– MINUS OK

+ PLUS OK

TOGGLE OK

ENTER OK

C C OK

0/T OK

Applications 67Semi-Micro Balances

Sample information displayed

Operation time (year:day:hour) 00:018:04

Total load kg 115.7191 kg

Number of weighings 1255

Number of key pressed 4931

Number of motor movements 1012

Backlight time (year:day:hour) 00:018:04

Next service due date 01:01:2010

6.11.6 Calibration history

The calibration history function allows you to view and print information of the last 30 (thirty) balance adjustment. Adjustments made by a service technician and normal user are counted together.

1 Press

2 Press 3 Press

4 Press C to cancel the test procedure.

ð The balance will return to the topic DIAGNOSE.

Sample information displayed

S = External adjusted service 05:03:09S 01

F = FACT 05:03:09F 02

I = Internal adjusted 04:03:09I 28

E = External adjusted user 03:03:09E 29

F = FACT 02:03:09F 30

to start CAL.HIST.

for printout. key to scroll forward through the displayed list of adjustments history information.

Information Display

Note Display

-3 PPM

2 PPM

-1 PPM

4 PPM

1 PPM

The PPM value is the change since the last performed FACT or adjustment.

6.11.7 Balance information

The balance information function allows you to view and print information about your balance.

1 Press

2 Press 3 Press

4 Press C to cancel the test procedure.

ð The balance will return to the topic DIAGNOSE.

Sample information displayed

Balance type

Applications68 Semi-Micro Balances

to start BAL.INFO.

for printout. to scroll forward through the displayed list of Balance information.

Information Display

TYPE MS6002S

Information Display

Max. load

Software platform

Serial number

Type definition number

Software version

Cell ID

Cell type

Tolerance revision number

Language

6.11.8 Service provider information

The service provider Information function allows you to print information about your service provider.

1 Press

ð The service provider information appears. 2 Press ð The service provider information will be printed and the balance will return to the topic DIAGNOSE.

to start PROVIDER.

MAX 6200 g

PLATFORM RAINBOW

SNR 1234567890

TDNR 9.6.3.411

SOFTWARE V1.00

CELL ID 1172400044

CELL TYPE MMAI6000G2

TOLERANCE NO2

LANGUAGE ENGLISH

Applications 69Semi-Micro Balances

7 Communication with Peripheral Devices

This section lists some typical examples of where the balance can communicate with peripheral devices. In most cases, it is possible to do so via USB or RS232. The chapters are primarily restricted to a USB setup.

7.1 USB - interface and installation

Before connecting the balance via the USB device interface and using either the HOST or PC-Direct function, the appropriate METTLER TOLEDO USB driver has to be assigned to the PC first. The USB driver can be found on

www.mt.com/labweighing-software-download. If you have any questions, please contact a METTLER TOLEDO

representative.

Note

If you connect the balance via USB to the PC before installing the METTLER TOLEDO USB driver, Windows will automatically install the wrong driver.

Requirements

• Balance with USB device interface

• PC with one of the following Microsoft Windows

Win 10

• Administrator rights for installing software

• USB connection cable to link PC to balance

Download USB driver

1 Connect to the internet. 2 Go to the site

3 Click Download Driver in section USB Driver for Advanced and Standard level laboratory balances.

ð A pop-up window with interactions appears.

4 Click e.g. Open.

ð The extract screen appears.

5 Extract the file MT_Lab_Advanced-Standard_USB_Driver_Installer_v1.24.zip to your specified location.

6 Right-click on the downloaded installation program MT_Lab_Advanced-

Standard_USB_Driver_Installer_v1.24.exe and select Run as Administrator.

7 If a safety warning appears, confirm windows to perform the installation.

8 Click Next and follow the installer's instructions.

www.mt.com/labweighing-software-download.

32-bit/64-bit operating systems: Win 7 (SP1), Win 8 or

Installing the balance

1 Switch the balance off.

2 Connect the balance to the preferred USB port on the PC.

3 Switch the balance on.

Communication with Peripheral Devices70 Semi-Micro Balances

7.2 Send weight value via USB or RS232 to a PC using PC-Direct

The numerical value displayed at the balance can be transferred to the cursor position in windows applications (e.g. Excel, Word) in the same way as typing with the keyboard.

The data is transferred via USB or via the serial RS232 interface. The weight value without the unit will be transferred.

Requirements

• PC with one of the following Microsoft Windows

Win 10

• Serial interface RS232 or USB

• Administrator rights for installing the SerialPortToKeyboard software (if data transfer is via RS232)

• Windows application (e.g. Excel)

• Connection between balance and PC via cable RS232 or USB

32-bit/64-bit operating systems: Win 7 (SP1), Win 8 or

7.2.1 PC-Direct via USB

The balance can send data (as a keyboard) to the PC used for PC applications, e.g. Excel. The balance sends the weight value without the unit to the PC.

Use the USB connection cable to connect the balance with the PC. Connect the USB cable to the USB device on the balance.

NOTICE

Disconnect the USB connection from the balance prior to changing settings.

Balance interface settings, see chapter "Interface menu".

Topic USB

− Set PC-DIR. and select the most appropriate option for the desired weighing result.

Topic USB E.O.L./USB E.O.L

1 Set TAB to write into the same row (e.g. in Excel).

2 Set CR LF to write into the same column (e.g. in Excel).

3 Save changes.

The balance must be disconnected from the PC.

1 Connect the balance to the PC.

2 Place the sample on the weighing pan. 3 Press

, the next stable weight will be send to the cursor position of your application.

Communication with Peripheral Devices 71Semi-Micro Balances

7.2.2 PC-Direct via RS232

➀

➁

➂

Balance interface settings, see chapter "Interface menu".

7.2.2.1 Installing SerialPortToKeyboard software

The operation of PC-Direct via serial port RS232 requires the installation of SerialPortToKeyboard on your host computer. The file SerialPortToKeyboard can be found on you have any questions, please contact a METTLER TOLEDO representative.

Download SerialPortToKeyboard

1 Connect to the internet. 2 Go to the site

3 Click Download Software and Instructions in section SerialPortToKeyboard software for Advanced and

Standard level laboratory balances.

ð A pop-up window with interactions appears.

4 Click e.g. Open.

ð The extract screen appears.

5 Extract the file SerialPortToKeyboard_V_1.11_installer_and_instructions.zip to your specified location.

6 Right-click on the downloaded installation program SerialPortToKeyboard_V_1.11.exe and select Run as

Administrator.

7 If a safety warning appears, confirm windows to perform the installation.

8 Click Next and follow the installer's instructions.

www.mt.com/labweighing-software-download.

www.mt.com/labweighing-software-download. If

Checking operation

1 Start SerialPortToKeyboard (RS232)

2 Start Excel (or another application) at the PC. 3 Activate a cell in Excel.

Settings at the PC

Settings for SerialPortToKeyboard

1 Select the serial port COM for the connection with the balance.

2 Set the Baud Rate to 9600.

3 Activate Connect.

• Closing the window terminates the session.

According to your selected PC-DIR. option, the displayed values will appear e.g. in the column one after the other one in the different rows.

7.2.2.2 Settings on the balance

Balance interface settings, see chapter "Interface menu".

Topic RS232

− Set PC-DIR. and select the most appropriate option for the desired weighing result.

Communication with Peripheral Devices72 Semi-Micro Balances

Topic RS.TX.E.O.L./RS E.O.L.

1 Set TAB to write into the same row (e.g. in Excel).

2 Set CR LF to write into the same column (e.g. in Excel).

3 Save changes.

7.3 Send weight value via USB to PC using LabX Direct Balance

The software LabX Direct Balance transfers weighing results and additional data such as the date and time or the measurement unit to an Excel file or any other application. The software can be ordered at METTLER TOLEDO and must be installed on a PC.

• LabX Direct is installed on the PC according to the user requirements.

• The METTLER TOLEDO USB* driver is installed on your PC.

• The balance is connected to the PC via the USB* device interface.

Configure balance

Balance interface settings, see chapter "Interface menu".

Topic USB

1 Set HOST and select the most appropriate option for the desired weighing result (SEND.STB/SEND.CONT/

SEND.AUTO/SEND.ALL).

2 Save changes.

Transfer values

1 Start LabX Direct Balance on your PC. 2 Select the correct COM port used by the balance. 3 Configure all settings according to the user requirements.

ð The weighing result (and additional data) is transferred to the PC program either automatically. * The required settings and workflow are very similar when using an RS232 connection. In this case, a

METTLER TOLEDO USB driver does not need to be installed on the PC as a prerequisite.

Communication with Peripheral Devices 73Semi-Micro Balances

8 Maintenance

To guarantee the functionality of the balance and the accuracy of the weighing results, a number of maintenance actions must be performed by the user.

8.1 Maintenance table

Maintenance action Recommended interval Remarks

Performing an internal adjustment

Performing routine tests (sensitivity test, repeatability test).

METTLER TOLEDO recommends to perform at least a sensitivity test.

Cleaning Depending on the degree of pollution or your

• Daily

• After cleaning

• After leveling

• After changing the location

• After cleaning

internal regulations (SOP), clean the instrument:

• After every use

• After change of sample

see chapter "Fully automatic adjustment FACT"

see below

see chapter "Cleaning the

balance"

8.2 Performing routine tests

There are several routine tests. Depending on your internal regulations, specific routine test must be performed by the user.

METTLER TOLEDO recommend to perform an sensitivity test after cleaning and reassembling the balance. To perform a routine test, proceed how described in chapter "Application routine test".

8.3 Cleaning

WARNING

Death or serious injury due to electric shock

Contact with parts carrying a live current can lead to injury and death. 1 Disconnect the instrument from the power supply prior to cleaning and maintenance. 2 Prevent liquid from entering the instrument, terminal or AC/DC adapter.

8.3.1 Cleaning agents

The following table presents the cleaning tools and cleaning agents recommended by METTLER TOLEDO.

Maintenance74 Semi-Micro Balances

Tools Cleaning agents

Around the balance

Balance terminal

Balance draft shield

Weighing area

Paper tissue

Lab bench

Brush

Dishwasher

Water

Acetone

Ethanol (70%)

Isopropanol

(70%)

Hydrochloric acid

(3-10 %)

Sodiumhydroxide

(0.2-1.0 M)

(R) n.a. (R) (D) R (D) (D) (D) or weighing table

Balance

(R)

—

R R R R

housing

Top housing (R)

Bottom

(R)

—

R R R R

housing

Back

(R)

—

R R (R) R

housing

Feet R (R)

Terminal

Screen /

— —

—

R R R R

(R) (R) (R) R R R

(R) R R R R R

display

Glass pans R (R) R (R) R R R R R

Glass free

R (R)

—

R R R R

pans

Non-

(R)

—

R (R) (R) R R R removable handles and frames

Draft ring

R (R) R

—

(R) (R) R (R) R element / Draft shield element

Weighing

(R)

—

R (R) R R R R

pan

Drip tray R (R) R

—

(R) (R)

— —

Peracetic acid

(2-3%)

Symbol descriptions:

: Best recommendation by METTLER TOLEDO, can be used without limitation. R: Recommended by METTLER TOLEDO, can be used without limitation. (D): Depending on the material used: individual durability and resistance to acid and alkali must be evaluated. (R): Partially recommended by METTLER TOLEDO (for selected balance line only, please check the respective

operating instructions, might also depend on your internal regulations).

— Not recommend.

Maintenance 75Semi-Micro Balances

8.3.2 Cleaning the glass draft shield

CAUTION

Injury due to breaking glass

Careless handling with the glass components can lead to breakage off glass and damage cuttings.

− Always proceed focused and with care.

Removing and inserting the side door glass panels and top door glass panels.

1 Always hold the 2 parallel guided glass panels

together and parallel with one hand, see illustrations.

2 Push all the glass panels as far as they will go to the

back.

3 Turn the top cover (1) to the front. 4 Pull the side door glass panels and the top door glass

panels towards the back and off. (observe the important note above)

5 Turn the two lock covers (2) on the front as far as they

will go to unlock the front glass.

6 Tilt the front glass forward and pull it out. 7 Remove draft ring. 8 Remove weighing pan. 9 Remove drip tray. After cleaning reinstall all components in reverse order

through the observance of the important notes.

Note

• Side door glass panels: The guide pin must be placed in the guide slot (3).

• After inserting the glass doors (side and top), close the top cover so that they can not fall out.

• Front glass: The writing "front" must be show forwards.

Maintenance76 Semi-Micro Balances

8.3.3 Cleaning the balance

On/Off

NOTICE

Damage due to improper cleaning

Improper cleaning can damage the weighing cell or other essential parts. 1 Do not use any cleaning agents other than the ones specified in the Reference Manual or

Cleaning Guide.

2 Do not spray or pour liquids on the instrument. Always use a moistened lint-free cloth or

a tissue.

3 Always wipe out from inside to outside of the instrument.

Protective equipment:

• Gloves

• Goggles

The following procedures describe the cleaning of the weighing pan and all components.

Around the balance

− Remove any dirt or dust around the balance and avoid further contaminations.

Cleaning the balance

1 Use a lint-free cloth moistened with a mild cleaning agent to clean the surface of the balance. 2 Remove powder or dust at first with a disposable tissue. 3 Remove sticky substances with a damp lint-free cloth and a mild solvent (e.g. isopropanol or ethanol

70%).

Cleaning all removable parts

− Clean all removed part with a damp cloth or a tissue and a mild cleaning agent or clean them in a

dishwasher up to 80°C.

Note

Useful details to avoid soiling are described in the METTLER TOLEDO "SOP for Cleaning a Balance".

8.3.4 Putting into operation after cleaning

1 Reassemble the balance. 2 Check the functionality of the draft shield. 3 Press 4 Warm up the balance. Wait 1h for the acclimatization, before starting the tests. 5 Check the level status, level the balance if necessary. 6 Perform an internal adjustment. 7 Perform a routine test due to the internal regulations of your company. METTLER TOLEDO recommends to

perform an repeatability test after cleaning the balance.

8 Press ð The balance has been putting into operation and is ready to use.

Mettler Toledo MS, MS105, MS105DU, MS205DU, MS204 Reference Manual

Specifications and Main Features

Frequently Asked Questions

User Manual