Mettler Toledo MT, UMT Operating Instructions Manual

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*P11780223*

Subject to technical changes and to the availability

of the accessories supplied with the instruments.

Mettler-Toledo GmbH, Laboratory & Weighing Technologies, CH-8606 Greifensee, Switzerland Phone +41-1-944 22 11, Fax +41-1-944 30 60, Internet: http://www.mt.com

Operating instructions

METTLER TOLEDO MT/UMT balances

Operating instructions METTLER TOLEDO MT/UMT balances

Thank you for purchasing a METTLER TOLEDO MT/UMT microbalance. The MT/UMT balances open up a new dimension in microweighing: They combine extreme precision and a wide range of weighing and setting options with an exceptional ease of operation.

Please read these operating instructions through carefully so that you can utilize all possibilities offered by your balance to the full. These operating instructions also offer valuable support in the form of a glossary and an index.

The present operating instructions apply to all METTLER TOLEDO balances of the MT/UMT series. As the various models have different performance characteristics, however, special mention is made in the text where this is important for the operation.

Please read through the enclosed booklet “Weighing the right way”. It is intended as a supplement to these operating instructions and contains additional important tips and information.

If you fold out this page, you will have an overview of your balance that shows you all features at a glance.

Safety has priority

– It is essential you consult the instructions in section 1.2 regarding putting your new balance into operation. – The MT/UMT balances may be operated only when connected to receptacle outlets with a ground connection. – The MT/UMT balances must not be operated in hazardous surroundings. – Never open the balance, it contains no parts which can be serviced, repaired or changed by the user. In the

unlikely event you experience problems with your balance, please contact the responsible service facility.

Pro FACT

Max 5,1 g d = 1 µg

MT5

Cancel

AUTOCALIN REMOTE

10/1 g

Configuration

Select 1

Set

Configuration

GBNT

On/Off

n i r P

34 5

Max 5,1 g d = 1 µg

MT5

Cancel

10/1 g

Set Re-Zero On/Off

STANDBY

Re-Zero

METTLER TOLEDO

Select 2

On/Off

Set

u n e M

21 22

Pro FACT

AUTOCALIN REMOTE

STANDBY

GBNT

23 24

Operating instructions METTLER TOLEDO MT/UMT balances

METTLER TOLEDO

1 Evaluation unit 2 Keypad/display 3 Connection for foot or hand

switch and electrical contacts

4 Connection for data interface 5 Connection to overhead display

6 Plug-in slot for program cassette 7 Connection for weighing cell 8 Program cassette, protection of the

configuration parameters

9 Connection for AC adapter

10 Drawer with weghing tongs,

brush and cleaning tweezers

11 Weighing cell

12 Glass draft shield with glass cover 13 Weighing chamber plate 14 Door handle 15 Weighing pan 16 Level 17 Hanger 18 Screw feet 19 Connection for evaluation unit

Select 2Select 1

20 Function keys 21 Status indicators 22 DeltaTrac® 23 Digital display 24 Weight units

Page

1 Your balance smooths the way 1

1.1 A new era in microweighing 1

1.2 Preparing your balance 2

1.3 Weighing made simple 5

2 Your balance offers high-level operating convenience 9

2.1 An ergonomic glass draft shield 9

2.2 The DeltaTrac® - an informative display 11

2.3 How you can weigh in the coarse and fine range 11

3 Individual adaptation of your MT/UMT 13

3.1 What is the menu? 13

3.2 How to adapt your balance to different types of weighing 17

3.3 How to adapt your balance to the local conditions 18

3.4 How to switch off the fully automatic door function 20

4 Additional possibilities in the configuration register 21

4.1 What is the configuration register? 21

4.2 How is the configuration register used? 22

4.3 In the first sector you return to the factory setting 25

4.4 The second sector offers you numerous adaptation possibilities 26

4.5 In the third sector you select the weight units and additional settings 31

4.6 The fourth sector presents a communication-friendly balance 33

4.7 Print out the current configuration 37

4.8 How to protect your settings against inadvertent changes 38

Page

5 Special applications and functions of your balance 39

5.1 Your balance can work with two weight units 39

5.2 Your MT/UMT also weighs in percent and displays plus/minus deviations 40

5.3 Do you wish to count pieces? 42

5.4 How to trigger the adjustment manually 45

5.5 How to check whether the balance is still adjusted correctly 48

5.6 How to print out the weighing result 49

5.7 You can also operate your balance by remote control 50

6 Important information regarding your balance 51

6.1 The AC adapter offers you a space-saving assembly option 51

6.2 If you change the location of your balance 53

6.3 A well maintained balance is a joy forever 54

6.4 What your balance brings with it 55

6.5 Additional information and accessories for your balance 56

7 Any questions? 56

7.1 What happens if the weight display is unstable? 56

7.2 How can the weighing speed be increased? 59

7.3 What happens if...? 60

7.4 What does this error message mean? 64

7.5 What does this term mean? 65

7.6 How are weight units converted? 75

7.7 Where will I find details of...? 76 Technical specifications 80

Operating instructions METTLER TOLEDO MT/UMT balances

Printed on recycled paper. Because we care.

Operating instructions METTLER TOLEDO MT/UMT balances

1Your balance smooths the way

1.1 A new era in microweighing

The MT/UMT models open up new dimensions in microweighing, yet are simple to operate.

The separation of weighing cell and evaluation unit ensures maximum precision - disturbing thermal influences are practically eliminated. Automatic door functions facilitate operate and prevent vibrations. And there is no need whatsoever to concern yourself with the adjustment - your balance performs the adjustment fully automatically. Built-in data interfaces ensure that your balance can communicate with a computer and peripheral devices.

Your balance is distinguished primarily, however, by its user friendliness: You attach the weighing cell to the evaluation unit, connect the balance to the power supply and after 60 minutes warm-up time (with an acclimatized balance) you can immediately start weighing. You thus obtain your first weighing result in an extremely short time.

The MT/UMT microbalances offer you the operating convenience and the possibilities that to date were possible only with analytical balances. There is, however, no need for you to grapple at the moment with functions you will not need until later.

In this first section you will find out how simply you can start up your new balance and perform normal weighings.

1.2 Preparing your balance

If you fold out the front fold-out, you have in front of you an immediate overview of all general illustrations at a glance.

You need undertake the following operations only on first-time installation and each time you change the balance location.

Select a suitable location

Your balance expresses its thanks for an optimum location by providing you with excellent weighing results:

30° 20° 10°

0°

- No direct sunlight

- No extreme temperature fluctuations

- No extreme fluctuations in the atmospheric humidity

- No excessive drafts (e.g. due to powerful air conditioning units)

- Firm, vibration-free location, as level

C a

10/1 g

n c

nfi

rat

ion

e r o

as possible

Additional tips and information regarding an optimum location can be found in the METTLER TOLEDO brochure “Weighing the right way”, which is enclosed with your balance.

Operating instructions METTLER TOLEDO MT/UMT balances

Re-Zero

Set

On/Off

Unpack your balance

Your balance is dispatched to you in a rugged packaging that you should store in a safe place for possible future transport of the balance.

As soon as you have decided on a suitable location, remove all components of your new balance from the packaging.

Set up the balance

You can set up the weighing cell to the left or right of the evaluation unit. The flexible arrangement of the balance allows optimum adaptation to your method of working and to the available space.

Connect the evaluation unit and the weighing cell

- Plug the supplied connection cable into connection socket 7 of the evaluation unit (marked with “For connection to weighing cell only”) and plug the other end into connection socket 19 of the weighing cell (marked with “For connection to evaluation unit only”). It is immaterial which end of the cable you connect to the evaluation unit or the weighing cell.

- The screws of the cable connectors have holes and can be sealed to prevent inadvertent separation of weighing cell and evaluation unit.

Mount the weighing pan and the draft shield

- The MT balances are supplied with mounted weighing pan. You thus only need to mount the glass cover on draft shield 12 of the weighing cell.

- The UMT balances have a smaller weighing pan than the MT balances (to avoid cornerload errors). The weighing pan is already mounted, on delivery. You thus need only mount the glass cover on the draft shield 12 of the weighing cell.

Level your balance

- Turn the two screw feet 18 at the rear of the weighing cell housing until the air bubble is in the middle of level 16.

Connect your balance to the power supply

- Connect the AC adapter supplied to connection socket 9 at the rear of the evaluation unit and then to the power supply.

Operating instructions METTLER TOLEDO MT/UMT balances

- The AC adapter can either be placed on the bench or, to save space, mounted on the wall. The AC adapter holder and the installation set with dowels and screws are used for this. Appropriate details are given in Section 6.1.

Operating instructions METTLER TOLEDO MT/UMT balances

Max 5,1 g d = 1 µg

MT5

METTLER TOLEDO

Pro FACT

Configuration

Cancel

10/1 g

Select 2Select 1

AUTOCALIN

REMOTE

GBNT

STANDBY

Set Re-Zero On/Off

STANDBY

After connection, your balance is on standby. If your balance is already acclimatized (depending on the temperature difference between the old and new location, this takes 6 to 12 hours), it provides you with the first reliable results after 60 minutes warmup time. After approximately 2 hours you can count on very accurate weighing results.

1.3 Weighing made simple

- By pressing the «On/Off» key you switch your balance from standby to the weighing mode. The balance now automatically performs a brief self-test and all display segments light up briefly.

At the end of the self-test, the balance determines the zero point. This very precise measurement takes several seconds, depending on the stability and acclimatization of the balance.

- If the draft shield is open, you can close it by pressing one of the two keys or or manually by turning door handle 14.

MT5

Cancel

10/1 g

Configuration

Set Re-Zero On/Off

METTLER TOLEDO

Pro FACT

Max 5,1 g d = 1 µg

Your balance is fitted with a fully automatic door function, which ensures that the draft shield is always open or closed at the right time. Section 3.4 describes how you can switch off this automatic mecha-

------

Zeroing of the display (taring) is automatic. While the zeroing is in progress and the horizontal segments appear in the display, you can abort the process by briefly pressing the «Re-Zero» key

again. nism. On completion of the self-test, this function opens the draft shield completely automatically.

As soon as the warning beep sounds,

zeroing of the balance is complete and

the fully automatic door function opens

0.000 mg

the draft shield.

Set your balance to zero (taring):

- If you wish to tare a container, place

Select 2Select 1

it on the balance.

- Press the «Re-Zero» key. The fully automatic door function closes the draft shield.

METTLER TOLEDO

Select 2

On/Off

- Load the weighing sample and press the «Print» key. The fully automatic door function closes the draft shield.

5.346 mg

Operating instructions METTLER TOLEDO MT/UMT balances

The triangle symbol (print symbol) and the circle symbol of the stability detection (ASD) appear in the display.

Operating instructions METTLER TOLEDO MT/UMT balances

5.346 mg

- When the symbol of the stability detection (ASD) fades, the warning beep sounds; the triangle symbol also fades and the draft shield opens automatically.

- Read off the weighing result. The result remains “frozen” on the display for 5 seconds. This can be recognized by the flashing circle above the weight unit. If the balance is attached to a printer, the weighing result is automatically printed out.

With this automatic door function, your work steps in weighing are reduced from 9 to 5!

Configuration

Select 1

of about 5 minutes and then performs the fully automatic self-adjustment (proFACT = Fully Automatic Calibration Technology). The symbol remains lit up until the balance has adjusted itself or until you trigger the adjustment by a keystroke. Section 5.4 shows you how to trigger the adjustment yourself.

- For switching off the balance, lift up the «On/Off» key briefly from below. This closes the draft shield

Pro FACT

Max 5,1 g d = 1 µg

MT5

Cancel

10/1 g

Set

Re-Zero

METTLER TOLEDO

Select 2

On/Off

automatically if the fully automatic door function is switched on. Otherwise, close the draft shield manually to prevent the ingress of dust and dirt.

AUTOCALIN

0.367

It is possible that the warning beep sounds during a weighing and the adjacent symbol appears in the display. Your balance uses this to show that it would like to adjust itself. But there is no need for you to interrupt your work as the balance waits until you have not carried out any weighings for a period

STANDBY

After being switched off, the balance is on standby. When it is switched on again, it needs no warm-up time and is in immediate operational readiness.

Some additional tips:

- If you have made a mistake during weighing, there is no need to worry: Simply switch off your balance briefly and then switch it on again. You will later learn of other possibilities to bring your MT/UMT to weighing readiness again.

- You can also effect the zeroing (taring) of the balance using the foot or hand switch (available as an accessory) attached to the balance via connection 3. Operation with the foot switch leaves both your hands free for loading the balance.

-OFF-

After an unexpected power outage, however, or if you did not switch off your balance before disconnecting it from the power supply, when power is restored again “–

OFF

–” appears in the display. When the «On/Off» key is now pressed in such a case, an extended, internal self-test is first performed. Here the model designation and the software version are briefly displayed and all display segments light up for a short space of time.

- If you ever have to disconnect your balance from the power supply, first switch it off by lifting up the «On/Off» key. After the balance has been reconnected, it is in the standby mode and “

STANDBY

”

appears in the display.

Operating instructions METTLER TOLEDO MT/UMT balances

2Your balance offers high-level

operating convenience

2.1 An ergonomic glass draft

shield

The small, circular glass draft shield reduces the contact surface for disturbing thermal influences and thanks to the narrow framework allows an unrestricted view of the weighing sample.

The weighing chamber can be opened at the left or right. The balance is thus equally convenient to load for left- and right-handers.

You can operate the draft shield manu- ally in the traditional manner using door handle 14.

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

METTLER TOLEDO

Pro FACT

The semiautomatic operation can be effected either with the or key. In this case, the draft shield is opened and closed by the motor either to the right or left.

Select 2

On/Off

- In one-handed operation, you use one hand to press the or key and then load the balance using the same hand.

- In two-handed operation, you press the or key with one hand and load the balance using the other hand.

In certain applications, such as zeroing (taring) of the balance, the draft shield opens and closes fully automatically as you already know from your first weighing. Manual or semiautomatic operation is also possible when the fully automatic door function is operative.

The fully automatic door function primarily facilitates work with the single or twin foot switch. Section 3.4 shows you how to switch off the fully automatic door function.

The draft shield of your balance has a “Learn function”. If the fully automatic door function is in operation, the draft shield opens automatically when the balance is zeroed and when the weighing result is printed out on the side you desire. For this purpose, the balance notes which of the keys or you last pressed to open or close the draft shield.

Pro FACT

Max 5,1 g d = 1 µg

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Pro FACT

Max 5,1 g d = 1 µg

MT5

Cancel

10/1 g

Configuration

Set Re-Zero On/Off

METTLER TOLEDO

An example:

You used the key, which opens the draft shield to the right, for the last door opening.

You now wish to zero the balance and

Select 2Select 1

press the «Re-Zero» key for this.

The draft shield is closed automatically and when zeroing is complete opens again to the right. However, if you wish the draft shield to open to the left, you must press the key before triggering zeroing.

Operating instructions METTLER TOLEDO MT/UMT balances

24.083

98.215

2.2 The DeltaTrac® - an informative display

The DeltaTrac® 22 is a supplement to the digital display 23. It provides you with a pictorial representation of the

weighing range in use and that still remaining. The dynamics of a weigh-

ing process can be followed on the DeltaTrac® extremely well. Simply observe the DeltaTrac® during a weighing and you will immediately understand its function.

The DeltaTrac® gives you a new feel for weighing, even with special applications, for example in repeated weighing in to a specified target value and in percent weighings. You will find further details in Section 5.2.

2.3 How you can weigh in the coarse and fine range

Your balance is equipped with a switch key which you can use to switch from the ten times more accurate fine range to the coarse range.

This switching allows you to work in the range best suited to your needs.

If, for example, instead of a high resolution you need a stable weighing result as rapidly as possible, you switch from the fine range to the course range using the switch key. This makes your balance very fast and the weighing results are extremely stable.

You have the following selectable ranges available:

Balance Fine Coarse Key

range range

MT5 1 µg 0.01 mg 10 / 1 µg

UMT2 0.1 µg 1 µg 1 / 0.1 µg

UMT5 0.1 µg 1 µg 1 / 0.1 µg

With the «10/1 µg» key of the MT balance or the «1/0.1 µg» key of the UMT balance, you can switch between the fine range and the coarse range:

- ...the balance operates in the

coarse range.

12.644 mg

- By pressing the «10/1 µg»

(or «1/0.1 µg») key again, you can return to the fine range.

12.6439 mg

Max 5,1 g d = 1 µg

MT5

Cancel

10/1 g

Configuration

Select 1

Set

- The balance is measuring in the fine range

Pro FACT

- Press the «10/1 µg» (or «1/0.1 µg») key and...

Operating instructions METTLER TOLEDO MT/UMT balances

3Your balance is an adaptable balance

For the optimization of your weighing results and adaptation to your weighing needs, your balance offers you additional setting options. You undertake these adaptations in the menu, which you will now be introduced to.

You can set additional parameters in the second menu tree of your MT/UMT, the configuration register (section 4).

3.1 What is the menu?

Overview of the menu functions:

- reference weight in %

- reference weight in pieces

- adjustment

- weighing process adapter

- vibration adapter

- fully automatic door function

You will find a detailed overview of the menu on pages 78 and 79.

In the menu you match your balance to the local conditions and to the weighing tasks. The menu contains various adaptation possibilities, the menu options, which in turn offer different setting options.

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

In addition, you can also perform several operational steps in the menu for special applications (percent weighing and piece counting). Section 5 of these operating instructions provides you with

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

Pro FACT

«Menu» key

- Selection of the menu by briefly pressing the key in the weighing mode

more information.

- Selection of the individual menu

options

Pro FACT

We encourage you to experiment with the menu to familiarize yourself with it.

You need have no worries here: By pressing the «Cancel» key you can return to the weighing mode at any time without changing any of the stored settings!

MT5

Cancel

10/1 g

Configuration

Select 1

Set

«Select 1» key

- Selection of the setting in a menu option

Pro FACT

Max 5,1 g d = 1 µg

You perform your weighings in the weighing mode, the operational mode of your balance. Weighing mode and menu are separate. By pressing and holding the «Configuration» key you can call up the configuration register. You can also select the different menu options and setting possibilities with keystrokes.

MT5

Cancel

10/1 g

Confi guration

Select 1

Set

«Set» key

- Confirmation of your selection and return to the weighing mode. The selected settings are stored and re-

Pro FACT

Max 5,1 g d = 1 µg

main so even after the balance has been switched off.

Operating instructions METTLER TOLEDO MT/UMT balances

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

Pro FACT

«Cancel» key

By repeated pressing of the «Menu» key, all available menu options appear

- Exit the menu and return to the

in the display in succession: weighing mode without any changes being made. If you have made a wrong selection, you can leave the menu at any time by pressing the «Cancel» key. You are

CAL Int

- proFACT fully automatic adjustment and linearization

then in the weighing mode again

without any change in the settings. Instead of pressing the «Cancel» key, you can naturally

switch the scale off briefly and then on again.

- Adaptation to the type of weighing (weighing process adapter)

- Adaptation to the local conditions (vibration adapter)

- Automatic door function of the draft shield

door Auto

A complete overview of the menu can be found on pages 78 and 79.

Some additional tips:

- Not all menu options are constantly or exactly displayed in the form shown; some of them, e.g. the setting of reference weights (“Set 100%”) depend on additional settings in the configuration register, which we will introduce you to in Section 4 of these operating instructions.

- If you are in the menu and press no key for about 1 minute, the balance returns automatically to the weighing mode. Any changes in the settings made up to this point are ignored in this case.

- In the following 3 sections you will get to know three menu options (weighing process adapter, vibration adapter and automatic door function) in detail. The additional setting options for special applications (weighing in reference weights for percent weighings or piece counting and the adjustment) will be introduced in Section 5.

Operating instructions METTLER TOLEDO MT/UMT balances

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

3.2 How to adapt your balance to different

This is the universal setting suitable in principle for all types of weighing. This setting is preset in

types of weighing

the factory.

Your balance can be matched to different types of weighing (fine dispensing, absolute weighing, etc.) very simply. For this purpose, it is equipped with the so-called weighing process adapter, which can be set in the menu.

Pro FACT

The setting absolute weighing is suitable for the rapid checking of a weight. During the weighing in, the last decimal place is suppressed.

- Select the menu by pressing the

«Menu» key briefly.

If you wish to employ fine dispensing (weighing in) of a fine powder or small amounts of liquid, select the

- Press the «Menu» key repeatedly

until the drop symbol of the weighing process adapter appears in the display.

weighing in setting. This provides a continuous display of all decimal places, and the weight increase can thus be followed easily.

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

Pro FACT

- Select the appropriate setting with

the «Select 1» key:

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

In this position the drop symbol is invisible, the weighing process

3.3 How to adapt your balance to the local

adapter is switched off. This setting is suitable only for special appli-

conditions

cations in which not only the final

result but also the dynamics of the weighing process are of interest, for example the recording of weight changes due to evaporation against time.

If, despite a closed draft shield, no stable weighing results are found, the cause could lie with unfavorable local conditions such as vibrations. Very minor, hardly noticeable vibrations of the weighing table are usually involved.

Pro FACT

- When you have selected the appropriate setting, press the «Set» key. This makes the selected settings active immediately, and the balance returns to the weighing mode.

With the so-called vibration adapter your balance can be matched in the menu to the local conditions.

Pro FACT

Max 5,1 g d = 1 µg

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Operating instructions METTLER TOLEDO MT/UMT balances

- Select the menu.

- Press the «Menu» key repeatedly until the wave symbol of the vibration adapter appears in the display.

Operating instructions METTLER TOLEDO MT/UMT balances

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

Pro FACT

- Select the appropriate setting with the «Select 1» key:

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

Pro FACT

- When you have selected the appropriate setting, press the «Set» key. The chosen setting then immediately becomes active, and the balance returns to the weighing mode.

Note: This setting is suitable for normal ambient conditions; the balance

operates at moderate speed in this case. This is the factory setting.

A further reason for an unstable display

of the weighing result could lie, for in-

stance, with electrostatic charging of

the weighing sample or the container.

You will find additional information This setting is suitable for work in

regarding this in Section 7.1. unstable surroundings. The balance operates more slowly, but is less sensitive to external disturbances.

This setting is suitable for very

calm and stable surroundings.

The balance operates very rapidly, but is relatively sensitive to external disturbances. This setting is recommended if your balance is located on a stone table.

3.4 How to switch off the fully automatic door function

You are already familiar with the convenient automatic door function of your balance from your first weighing. When the automatic door operation is switched on, the draft shield closes automatically after the «Re-Zero» key (zeroing/ taring) or the «Print» key (printout of the weighing result, see Section 5.6) has been pressed. As soon as the weight display is stable, the draft shield is reopened for the next weighing operation (e.g. weighing in, loading the balance). The draft shield is thus always in the correct position for the next weighing process. Routine work is particularly facilitated by this automatic operation. It is also useful in the percent weighing (Section 5.2) and piece counting (Section 5.3) applications.

Pro FACT

Max 5,1 g d = 1 µg

MT5

Cancel

10/1 g

Configuration

Select 1

Set

door Auto

When the twin foot switch is used, the automatic operation leaves both hands free for weighing in.

If you wish to operate the draft shield manually or semiautomatically using the two keys and , however, you can

switch off the automatic door operation:

- Select the menu.

- Press the «Menu» key repeatedly until the adjacent display appears.

Operating instructions METTLER TOLEDO MT/UMT balances

Pro FACT

Max 5,1 g d = 1 µg

MT5

Cancel

10/1 g

Configuration

Select 1

Set

door Auto

door Std

- Using the «Select 1» key, you can now switch the automatic door operation off and on again:

Fully automatic door function switched on

Fully automatic door function switched off

4 Additional possibilities of your

balance

In addition to the menu, your MT/UMT balance offers you further, very specific adaptation possibilities. You perform these adaptations in the configuration register, which we will introduce you to in the following section.

4.1 What is the configuration register?

The configuration register is divided into four sectors in which you can vary the following settings:

SEtt INGS

- Operational setting

• Reset

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

Pro FACT

- Activate the chosen setting by pressing the «Set» key and you will be returned once again to the weighing mode.

SCALE

- Basic settings

• ASD, automatic stability detector

• Readability

• Readability in the semimicro range

• Autozero

• proFACT, adjustment and linearization

Unit

Int -FACE

- Weighing units weighing unit 1 weighing unit 2 status indicator beeper

- Interface data transmission mode data transmission rate parity transmission protocol end-of-line mode

You will find further details on the adjustment parameters on pages 78 and 79.

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

4.2 How is the configuration register used?

Hold the short-form operating instructions in your hand. You will then have the complete configuration register in front of you at a glance.

Pro FACT

We would like to encourage you to experiment with the configuration register to familiarize yourself with it. You need have no worries on this score: By pressing the «Cancel» key, you can return at any time to the weighing mode without any of the stored settings being altered!

Operating instructions METTLER TOLEDO MT/UMT balances

MT5

Cancel

10/1 g

Configuration

Select 1

Set

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

METTLER TOLEDO

Pro FACT

By pressing and holding the «Configuration» key, you call up the configuration register. You select the different

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

Pro FACT

- sectors («Configuration» key)

Pro FACT

- parameters («Select 1» key)

«Select 1» key

Selection of the parameters in a sector. After the last parameter in this sector you are returned to the first.

- settings («Select 2» key) by simply pressing the appropriate key. In contrast to the menu, you also need the «Select 2» key for operation of the

Select 2

On/Off

configuration register.

METTLER TOLEDO

Select 2

On/Off

«Select 2» key

Selection of the desired setting of a parameter. After the last setting of a parameter, you are returned to the first.

«Configuration» key

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

Pro FACT

Selection of the configuration register from the weighing mode by pressing and holding the key

(about 5 seconds). You are then already in the first sector.

Selection of the individual sectors in the configuration register with a brief keystroke. After the last sector you are returned to the first.

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

Pro FACT

«Set» key

Confirmation of your selection and

return to the weighing mode. The selected settings are stored and remain so even after the balance has been switched off or disconnected from the power supply.

Max 5,1 g d = 1 µg

MT5

Cancel

10/1 g

Configuration

Select 1

Set

2400 bd

Pro FACT

«Cancel» key

Exit the configuration register and return to the weighing mode without any changes being stored. If

you have made a wrong selection, you can quit the configuration register at any time by pressing the

A further tip:

If you are in the configuration register and you do not press a key for about 1 minute, the balance automatically returns to the weighing mode. In this case, any alterations in the settings are

ignored. «Cancel» key. You are then again in the weighing mode without any

setting having been altered.

Instead of pressing the «Cancel» key, you can also switch the balance off, then immediately on again.

In the following sections you will learn

what parameters you can select in what

sectors, and what settings are avail-

able. You will find the first example in

the setting of the parameter “Auto-

matic stability detection” (ASD) in

Section 4.4. In the following sections,

you will also find recommendations for

the correct setting of your balance. Fur-

Your balance is naturally not supplied with an empty configuration register. We have already included default set-

ther useful tips are contained in the en-

closed booklet “Weighing the right

way”.

tings for you. You can recognize these factory settings by the asterisk in the

upper left corner of the display.

Operating instructions METTLER TOLEDO MT/UMT balances

4.3 In the first sector you return to the factory settings

As you have learned in the preceding section, the configuration register of your balance has been preset in the factory. Even if you have modified the settings, you can return to the factory setting at any time.

But here all specific settings, even those in the menu, will be replaced by the factory settings!

You undertake the return to the factory settings in the first sector (operational setting). This sector contains only a single parameter:

SEttINGS

rESEt

0.000 mg

- You are now in the first sector (

Settings

) of the configuration

- Select the first (and only) parameter («Select 1» key).

- Activate the resetting by pressing the «Set» key, and the scale returns automatically to the weighing mode. You again work with the factory settings.

-ConF-

- Select the configuration register by pressing and holding the «Configu- ration» key. As soon as the display shown opposite appears, release the key.

SCALE

4.4 The second sector offers

you numerous adaptation possibilities

- Select the configuration register by pressing and holding the «Configu-

ration» key. Then select the second sector (basic settings) by pressing

the «Configuration» key briefly.

In this sector you can select the following parameters and their settings:

Automatic stability detection, (ASD)

The symbol fades and the weighing result is released only when the result is within the limits selected by you for the stability.

You have a choice of eight settings. In the setting

Asd–1–

the display must be within a preset tolerance limit for one second for the result to be released as stable. In the setting

ASd–7–

the result must be within a preset tolerance limit for several seconds before being released.

- Select the first parameter, the auto-

matic stability detection (

ASD

), with

the «Select 1» key.

ASd

0.35

Your balance possesses an automatic stability detection. As long as the weighing result is unstable, the stability detection symbol remains lit up in the upper left corner of the display.

Operating instructions METTLER TOLEDO MT/UMT balances

- Select the appropriate setting with

the «Select 2» key. The following il- lustration shows the relationship between the repeatability and the weighing speed.

Operating instructions METTLER TOLEDO MT/UMT balances

Stage Weighing Repeata-

speed bility

off

very fast good

1 2 3* 4 5 6 7 fast very good

*= factory setting

In the

oFF

position, the balance does not wait for attainment of stability; each result is considered stable. This setting is used in special applications in connection with the serial data interface (see also Section 4.6 “Data transmission mode”).

Readability (selection of the readout increments)

In this parameter you define the readout increments (digits) for the last decimal place. Readout increments of 1, 2, 5 and 10 are available, and these are symbolized by the following setting options:

MT5 UMT2 UMT5

0.01 mg* 1 µg* 1 µg*

0.02 mg 2 µg 2 µg

0.05 mg 5 µg 5 µg

0.1 mg 10 µg 10 µg

* = factory setting

Select readout increments as large as your application allows; the larger the readout increments, the faster the operation of your balance.

Readability (selection of the readout increments) in the fine range

Here you define the readout increments (digits) for the last decimal place for weighings in the fine range. Readout increments of 1, 2, 5 and 10 are available, and these are symbolized by the following setting options:

MT5 UMT2 UMT5

1 µg* 0.1 µg* 0.1 µg* 2 µg 0.2 µg 0.2 µg 5 µg 0.5 µg 0.5 µg 10 µg 1 µg 1 µg

* = factory setting

oFF

Autozero (AZ)

In this parameter you switch the automatic zeroing (autozero) on or off. When switched on, the zero is automatically corrected for drift or contamination of the weighing pan.

- Autozero on*

- Autozero off

Select readout increments as large as your application allows; the larger the readout increments, the faster the operation of your balance.

With the «10/1 µg» (or «1/0.1 µg with the UMT) key, you toggle between the coarse and fine range.

Operating instructions METTLER TOLEDO MT/UMT balances

* = factory setting

For particular applications (e.g. monitoring of the zero point in long-term weighings), it can be an advantage to switch the autozero function off.

Operating instructions METTLER TOLEDO MT/UMT balances

CALIN

Auto on

Adjustment and linearization with proFACT

In this parameter you define the adjustment mode, i.e. the way in which your balance should be adjusted and linearized. The following possibilities are available:

- The MT/UMT balance adjusts and

linearize itself fully automatically by loading two internal adjustment weights. The process is initiated as soon as a change in the operating conditions makes this necessary. One of the most important initiation criteria is a temperature fluctuation in the surroundings of ± 1.5 °C. You do not have to concern yourself with the adjustment of the balance. The adjustment and the simultaneous linearization provide you with the surety that the displayed value matches the mass of the loaded weight over the entire weighing range of your MT/UMT.

proFACT professional fully automatic adjustment and linearization technology

1. Adjustment

The two internal adjustment weights are loaded. The display is adjusted so that the loaded weight matches the displayed value. (Correction of the slope of the straight line).

2. Linearity

The internal weight m1 is loaded alone and together with the weight m2. The linearity is adjusted using the different display values for m1 in both measurements. If the two displayed values, y

and y2, are equal, the linearity is ad-

Display value

100%

50%

Loaded weight

justed. (Correction of the deviation from the shape of an ideal straight line).

100%

CALIN

Auto oFF

In this mode you can also initiate the fully automatic adjustment and linearization at any time with a keystroke. This is practical, for instance, when your balance reports during a weighing that it wishes to adjust itself. Section 5.4 shows you how to proceed in such a case.

- The fully automatic self-adjustment

with linearization adjustment (proFACT) described above is switched off. You can trigger the

adjustment with the internal adjustment weights at a keystroke. After initiation, the adjustment runs automatically, and at the same time the measuring range is linearized. Section 5.4 shows you how to proceed in this case.

CAL

USEr

- You use your own, external adjustment weight for the adjustment.

The procedure is described in Section 5.4 of these operating instructions. proFACT is not active in this setting.

Operating instructions METTLER TOLEDO MT/UMT balances

Unit

Unit 1

4.5 In the third sector you select the weight units

The number of decimal places in each unit is dependent on the balance model.

and additional settings

By pressing the “ key, you toggle be-

Select the third sector (weight units) in the configuration register.

In this sector you can select the following parameters and their settings:

Weight unit 1

The following weight units are avail-

Unit 2

able:

Display Name

tween weight unit 1 ( unit 2 (

Unit 2

). Section 5.1 provides

Unit 1

) and weight

you with further details regarding this switching. A conversion table for the weight units is given in Section 7.6.

Weight unit 2

You have available the same weight units as with weight unit 1 and also the

application units piece and percent:

g gram mg * milligram

µg microgram

GN grain dwt pennyweight ct carat, metric C.M. carat, metric (GB) mo momme

* = factory setting

Display Name

g gram mg milligram

µg * microgram

GN grain dwt pennyweight ct carat, metric C.M. carat, metric (GB)

mo momme PCS pieces Stk pieces (German) % percent

* = factory setting

The number of decimal places in each unit depends on the balance model.

By pressing the “ key, you toggle between weight unit 1 ( unit 2 (

Unit 2

). You will find further de-

Unit 1

) and weight

tails in Section 5.1. A conversion table for the weight units is given in Section

7.6.

The application units «piece» and «percent» are described in detail in Sections 5.2 and 5.3.

Auto

Status indicators

The status indicators 21, such as the symbols for the vibration adapter and the weighing process adapter, provide you with an overview of the selected settings. These graphic indicators can be switched on or off.

-A few minutes after the balance has been switched on, the symbols fade. *

- The symbols are displayed permanently.

Operating instructions METTLER TOLEDO MT/UMT balances

* = factory setting

Operating instructions METTLER TOLEDO MT/UMT balances

bEEP

bEEP on

bEEP oFF

Beeper setting

The audio acknowledgement beep supports the operation of the balance and the display audibly. You can switch it off or on.

- audio acknowledgement beep switched on *

- audio acknowledgement beep switched off

4.6 The fourth sector presents a communication-friendly balance

- Select the fourth sector in the con-

figuration register (interface).

Int-FACE

For the attachment of a third-party printer or a PC you can select the parameters for the data transmission via the serial data interface and their settings in this sector. You will find more detailed information regarding use of the interface in the instructions “Bidirectional interface of the

METTLER TOLEDO AT/MT/UMT balances”, which is enclosed with your

balance.

* = factory setting

S. Stb

S. ALL

S. Auto

Data transmission mode

The following setting options are available:

- Send stable: The first stable value is transferred after initiation of the print command after release by the automatic stability detection. *

- Send all: The current value is transmitted after initiation of the print command.

- Send automatically: The first sta- ble value is transmitted automatically after every weight increase

of at least 0.01 g.

Important note:

If you have switched off the automatic stability detection in sector 2 (

ASD oFF

), all weight values are regarded as being stable. After the «Print» key has been pressed in this case, the following values are transmitted:

In setting the setting

In setting

S.Stb

: The current value as in

S.ALL

S.Auto

: The first value after a

weight change of more than 0.01 g.

S. Cont

- Send continuously: All prepared values are transmitted continu-

ously.

* = factory setting

Operating instructions METTLER TOLEDO MT/UMT balances

2400 bd

Data transmission rate (baud rate)

The data transmission rate (baud rate) determines the speed of the transmission via the serial interface. The unit is the baud (1 baud (bd) = 1 bit/second). The following transmission rates are available:

- 150 db

- 300 db

- 600 bd

- 1200 bd

- 2400 bd *

- 4800 bd

- 9600 bd

* = factory setting

PAr

PAr -E-

PAr -O-

Parity

With the aid of the parity test, simple bit errors in the data transmission can be recognized by a parity check. The following setting options are available:

- Parity Even *

- Parity Odd

- Parity Off

PAr oFF

- Parity Space

PAr SPc

* = factory setting

Transmission protocol (HandShake)

HS PAUSE

HS CL

These settings allow matching of the data transmission to various serial receivers. The following settings are available:

- Pause of 1 second (for METTLER TOLEDO GA42 Printer)*

- METTLER TOLEDO transmission protocol. In this operating mode, the end-of-line mode is automatically set to “

crLF

” and can not be

changed.

HS HArd

HS Soft

EOL

- Hardware handshake (DTR/CTS)

- Software handshake (XON/XOFF)

* = factory setting

End-of-line mode

Two setting options are available:

HS oFF

- No handshake

- Carriage return and line feed at end of line *

EOL crLF

- Carriage return at end of line

EOL cr

* = factory setting

Operating instructions METTLER TOLEDO MT/UMT balances

Important note:

HS CL

is set in the transmission protocol, the end-of-line mode is set automatically to

EOL crLF

and can not be

changed.

4.7 Print out the current

configuration

You can print out the configuration currently stored on an attached printer. This record is useful if you work with different configurations. You then know at all times which values should be set for which application.

METTLER TOLEDO

Select 2

On/Off

STD 10.1.11 TYPE : MT 5

1.00.00

= STORED SETTINGS =

-SCALEASD d (Step) dF (Step) AutoZero Cal

-UNITUnit 1 Unit 2 Symbols Sound

: 3 : 1 : 1 : on : auto on

: mg : ug : auto : on

Proceed as follows for the printout:

- Select the configuration register.

- Press the «Print» key, and the current configuration will be printed out.

A further tip: Always print out your specific configuration. You thus have a record of your settings and even if you return to the factory settings, you can restore your configuration at any time.

-INTERFACESend Mode Baudrate Parity Handshake Line End ===================

: stb : 2400 : even : Pause : CRLF

4.8 How to protect your settings against inadvertent change

As you know, with one press of the «Set» key your individual settings in the configuration register are stored. These are available at any time (even if the balance has since been disconnected from the power supply). You are not, however, protected against inadvertent alterations, for instance by other balance users.

To safeguard the settings, proceed as follows:

- Grasp the bracket of program cassette 8 and withdraw this carefully from the plug-in slot 6.

- Remove the jumper with a thin pin or a needle from the contact pins.

- Disconnect the cable of the AC adapter from the receptacle.

- Remove the cover of the plug-in slot 6 at the rear of your balance.

Operating instructions METTLER TOLEDO MT/UMT balances

unprotected

protected

- If you wish to protect your individual settings in the configuration register against inadvertent changes, place the jumper across both contact pins.

Operating instructions METTLER TOLEDO MT/UMT balances

- Slide the program cassette 8 into the plug-in slot 6 up to the stop and replace the cover. Plug the cable of the AC adapter into the receptacle.

If you have secured your settings, the configuration register is no longer accessible and alterations are no longer possible.

- To remove the safeguard, proceed in the reverse sequence.

5 Special applications and functions of

your balance

Your balance is also prepared in the best possible way for special cases. Applications and functions built in as standard expand the possibilities of your balance and facilitate the operation. The following section familiarizes you with these applications and functions.

5.1 Your balance can work with two weight units

With your balance you can toggle between two preselected weight units at any time. Section 4.5 of these operating instructions shows you how to select and store these two weight units in the configuration register.

68.432 µ

METTLER TOLEDO

Select 2

On/Off

You have, for example, selected “mg” as weight unit 1 and “ct” as weight unit 2 in the configuration register. You can switch between these two units at a keystroke:

The balance is operating with weight unit 1.

- Press key “ briefly and ...

5.2 Your balance also works with percentages and shows plus/minus deviations

This built-in application allows you to weigh in to a preset value (100%) and to determine deviations from a target

value.

So that this application appears in the menu, you must set the unit to percent (%) under the parameter “Weight unit 2” ( (

Unit

ter as described in Section 4.5.

Unit 2

) in the “Weight units”

) sector of the configuration regis-

0.3422617

- ...the balance now works with

weight unit 2. By pressing the “ key again, you can return to weight unit 1.

MT5

Cancel

10/1 g

Configuration

Select 1

Set

- Press the «Menu» key briefly and

the balance prompts you to load the

reference weight.

Pro FACT

Max 5,1 g d = 1 µg

The table in section 7.6 shows you the conversion factors between the various weight units.

Operating instructions METTLER TOLEDO MT/UMT balances

SEt 100 %

Note: This request appears only if weight unit 2 is set to percent (%).

- Open the draft shield and load the reference weight.

- Press the «Set» key and the draft shield closes automatically if the automatic door function is switched on. If not, close the draft shield manually or by pressing one of the two keys or and then press key «Set».

-2.5% 100% +2.5%

- As soon as the horizontal dashes disappear, the reference weight has been read in and your balance is ready for weighing. If the automatic door function is switched on, the draft shield opens automatically on completion of the weighing process. If not, open it yourself. Remove the reference weight.

The DeltaTrac® now shows a plus and a minus marking that displays the tolerance limits of plus and minus 2.5%.

Now first weigh in coarsely:

- Place the empty container on the pan and set the balance to zero (taring).

------

As long as the horizontal dashes are displayed, your balance is weighing the reference weight.

67.40 %

coarse indicator

98.70 %

100.00 %

fine indicator

- Add the weighing sample at a steady rate to the container until the coarse indicator on the DeltaTrac® is pointing vertically downward. This shows that the approximate target weight has now been reached.

Now perform the fine weighing:

- After the coarse weighing in, you now add the weighing sample carefully until the fine indicator on the DeltaTrac® is pointing vertically

upward.

- When the fine and the coarse pointers form a vertical line, the set weight is within ±0.25% of the target.

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

5.3 Do you wish to count pieces?

First your balance needs to know that you wish to perform piece counting. You make this setting in the third sector of the configuration register ( where you set weight unit 2 ( “

PCS

” (English) or “

Stk

This setting is described in Section 4.5.

Pro FACT

- Open the draft shield manually or by

pressing one of the two keys or .

Unit

Unit 2

” (German).

) to

You also have a fine range available in the weight unit %, in which additional decimal places are displayed.

With the “ key you can display either the percentage or the weight (see also Section 5.1).

Operating instructions METTLER TOLEDO MT/UMT balances

- If you wish to count into a con-

tainer, load the empty container.

Operating instructions METTLER TOLEDO MT/UMT balances

MT5

Cancel

10/1 g

Configuration

Set Re-Zero On/Off

Max 5,1 g d = 1 µg

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Pro FACT

METTLER TOLEDO

Pro FACT

Max 5,1 g d = 1 µg

- If you wish to count out of a container, load the full container.

- Set the scale to zero (taring).

Select 2Select 1

- Your balance now needs the weight of a reference piece number. Press the «Menu» key briefly.

Pro FACT

Max 5,1 g d = 1 µg

MT5

Cancel

10/1 g

Configuration

Select 1

Set

SEt 10

SEt 20

SEt 50

SEt 100

Pcs

- Select the desired reference piece number with the «Select 1» key. The following piece numbers are available:

10 20 50 100

Note: We advise you to select a reference piece number as large as possible since your balance determines the average weight per piece. Since it is seldom the case that all pieces are equally heavy, the reference weight that is stored is naturally more accurate the greater the reference piece number.

Pcs

SEt 10

Pcs

Note: This menu selection appears only when weight unit 2 is set to piece (

PCS

Stk

- If you wish to count into a container, add the selected number of pieces (reference piece number) of the weighing sample to the container.

- - - - - -

- If you wish to count out of a container, remove the selected number of pieces from the container.

- Press the «Set» key, and the draft shield closes automatically if the automatic door function is switched on. If not, close the draft shield manually or by pressing the or key and then press the «Set» key.

As long as the horizontal dashes are displayed, your balance is weighing the reference weight.

- As soon as the horizontal dashes disappear, the reference piece number and the reference weight have been read in and your balance is ready for counting or weighing.

+67

-24

Pcs

If the automatic door function is switched on, the draft shield opens automatically on completion of the weighing-in process. If not, open it yourself.

Depending on how you have weighed in the reference weight, you can now:

- Count into the container with dis- play of the total number of pieces in the container or...

- ...count out of the container with display of the number of pieces removed from the container.

You can use the “ key to display ei-

ther the piece number or the weight

(see also section 5.1).

Operating instructions METTLER TOLEDO MT/UMT balances

AUTOCALIN

0.367

5.4 How to trigger the adjustment manually

In the factory the balance is preset to proFACT. The MT/UMT balance adjusts and linearizes itself as soon as a change in the ambient conditions makes this necessary. You thus need not concern yourself with the adjustment. But you also have the possibility to trigger the motorized adjustment with the internal adjustment weights at all times at a keystroke. This can be practical if the audio warning beep sounds during a weighing and the adjacent symbol appears in the display. This is how your balance shows you that it would like to adjust itself. You can now either interrupt your work at the next convenient opportunity for about 5 minutes, when the balance will adjust itself, or you yourself can trigger the motorized adjustment by pressing a key.

CALIN

Auto off

CAL

USEr

You select the adjustment mode in sector 2 (

SCALE

) of the configuration register (see Section 4.4). In addition to the fully automatic self-adjustment, you have two further adjustment possibilities available:

- You trigger the automatic adjust-

ment with the internal adjustment weights, with simultaneous auto-

matic linearization of the measuring range at a keystroke.

- The manual adjustment with an

external adjustment weight, without linearization of the measuring range.

If you have switched off the automatic self-adjustment, you should adjust the balance occasionally.

AUTOCALIN

CAL Int

Automatic adjustment with the internal adjustment weights at a keystroke

You have this adjustment mode available if you have set the parameter “adjustment and linearization” in sector 2 of the configuration register (basic settings) either to

CALIN Auto oFF

CALIN Auto on

- Repeatedly press the «Menu» key briefly until the adjacent display appears.

CAL End

0.000 mg

- You can follow the adjustment and linearization procedure in the numerical display and on the DeltaTrac®, and you also hear when the internal weights are loaded.

Completion of the adjustment and linearization process is displayed briefly,...

...the audio warning beep sounds and the balance returns to the weighing mode.

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

Pro FACT

- Trigger the adjustment procedure by pressing the «Set» key. The draft shield now closes automatically if the automatic door function is switched on. If not, close the draft shield manually or by pressing the

or key.

Operating instructions METTLER TOLEDO MT/UMT balances

CAL USEr

Manual adjustment with an external adjustment weight

You wish to use your own external adjustment weight for the adjustment and have set the parameter proFACT (adjustment and linearization) to

CAL USEr

in sector 2 of the configuration register (basic settings). In this mode, the automatic adjustment with

the built-in adjustment weights is switched off.

- Repeatedly press the «Menu» key

briefly until the adjacent display appears.

CALIN

5.000000

CALIN

0.000000

After a short time, the audio warning beep sounds and the requested, model-dependent adjustment weight appears in the display (for example, 5 g in the MT5 case).

- Open the draft shield, load the requested adjustment weight and close the draft shield.

- Wait until the audio warning beep sounds. The display now requests the removal of the adjustment weight.

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

- Open the draft shield, remove the adjustment weight and close the

Pro FACT

- Trigger the adjustment procedure by

draft shield.

pressing the «Set» key. The draft shield now closes automatically if the automatic door function is switched on. If not, close the draft shield manually or by pressing the

or key.

0.000000

As soon as the audio warning beep is heard and the adjacent display appears, the adjustment is finished and your balance is again in the weighing mode.

MT5

Cancel

10/1 g

Configuration

Select 1

Set

Max 5,1 g d = 1 µg

5.5 How to check whether the balance is still ad-

Note:

This display does not appear if you have set the parameter “adjustment

justed correctly

and linearization” to

CAL USEr

the configuration register (adjust-

In the factory, the balance is set to proFACT, professional fully automatic adjustment and linearization technol-

ment with your own external adjustment weight). Please also see the note at the end of this section.

ogy. A check of the adjustment is not necessary in this mode. If you have selected the automatic adjustment mode with manual triggering (

oFF

) in sector 2 of the configuration

CALIN Auto

CAL tESt

- Select the adjustment test by pressing the «Select 1» key.

Pro FACT

MT5

Cancel

10/1 g

Configuration

Select 1

- Select the menu by pressing the «Menu» key briefly.

Pro FACT

Max 5,1 g d = 1 µg

- Start the test by pressing the «Set» key. If the fully automatic door function is switched on, the draft shield

Set

now closes automatically. If not, you first close the draft shield manually or by pressing the or key and then the «Set» key.

AUTOCALIN

CAL Int

- Repeatedly press the «Menu» key briefly until the adjacent display appears.

Operating instructions METTLER TOLEDO MT/UMT balances

5.000001

5.000000

The internal weights are now loaded, without the balance being adjusted, and the current, model-dependent adjustment value displayed, interrupted by the display

tESt

- When you have read off the value, abort the test by pressing the «Set» or «Cancel» key. The balance is then again in the weighing mode.

Notes:

If the deviation of the adjustment weight is more than ±0.00015% (1.5 ppm) from the full load, the balance should be adjusted (see Section 5.4).

If you work with your own, external adjustment weights (parameter “adjustment and linearization” set to

USEr

in the configuration register), you

CAL

can check the adjustment of the balance by loading your own, external adjustment weights.

METTLER TOLEDO

Select 2

On/Off

5.6 How to print out the weighing result

You can output the weighing result via the interface connection 4 on a printer. If you wish to attach a third-party printer, you match the parameters of the data interface to the specifications in the printer handbook (see Section 4.6). You will find further details in the instructions “Bidirectional interface of the METTLER TOLEDO AT/MT/UMT balances”, which is also enclosed.

- In the weighing mode press the

«Print» key briefly.

5.346 mg

- As soon as the result is stable, it is transferred via the interface connection 4 to the printer. Up to the transmission, the triangle symbol is lit up in the display. If the transmission has not yet taken place, you can abort the procedure by pressing the «Print» key again briefly.

After the transmission, the result is kept for about 5 seconds in the display for checking purposes, and a ring symbol flashes at the upper right.

- Notes: The type of transmission depends on the selected data transmission mode, which you have set in the fourth sector of the configuration register (see Section 4.6). If you have selected the mode and the automatic door function is switched on, the draft shield is closed, the result transmitted and

S.Stb

S.Auto

then the draft shield opened again. If not, you close the draft shield manually or by pressing the or key.

- The transmission command can also be triggered with the hand or foot switch (available as an accessory).

5.7 You can also operate

your balance by remote control

The complete operation (keypad and draft shield) as well as the menu and the configuration register of your balance can also be controlled via a com- puter. This allows you to incorporate your balance in an automation system and, for instance, is also suitable for loading by a robot.

Operating instructions METTLER TOLEDO MT/UMT balances

The draft shield, the zeroing (taring) of the balance and the print command can also be controlled externally via an electrical contact (relay, proximity switch). The connections for the electrical contacts 3 are at the rear of your balance.

You will find further information regarding the attachment of an external computer or an electrical contact in the operating instructions “Bidirectional in-

terface of the METTLER TOLED AT/MT/UMT balances”.

6 Important information regarding your

balance

6.1 The AC adapter offers

you a space-saving assembly option

You can naturally place the AC adapter supplied anywhere in the vicinity of the balance within the radius of the connection cable. But in addition, the AC adapter also offers you an additional space-saving installation possibility, namely mounting on a wall.

Wall mounting

- Decide on a suitable place for the AC adapter. Take the length of the connection cable into account.

- Use the AC adapter holder as a template to mark out the drill holes.

- Drill the holes and use the dowels in the installation set supplied should the wall material require it. Fix the AC adapter holder such that the arrow is visible and pointing upward.

- Hold the AC adapter so that the connection cable exits from the top and position the four feet in the slots in the holder. Hold the connection cable to the right while doing so and it will slide into the central slot of the holder automatically.

Note:

You can also fix the AC adapter so that the connection cable exits from below. In this case hold the connection cable to the left when engaging the AC adapter.

- Press the AC adapter gently downward to the stop.

- Connect the AC adapter first to connection socket 9 of the evaluation unit and then to the power supply.

1. 2.

Operating instructions METTLER TOLEDO MT/UMT balances

Re-Zero

Set

On/Off

6.2 If you change the location of your balance

If you wish to relocate your balance, there is no need to arrest any parts or controls, but please note the following information:

- If the balance is connected to the

power supply, disconnect the power cable. There is no need to remove the connection between the weighing cell and the evaluation unit.

- Reconnect the balance to the power supply.

- Depending on the temperature difference between the old and new location, you should allow the balance to acclimatize for 6 to 12 hours before you start weighing again.

If you transport your balance outside the building, we advise you to use the original packaging.

- Carry the balance to the new loca-

Set

On/Off

Re-Zero

tion. For this, hold the housing of the evaluation unit at the side. Hold the housing of the weighing cell and not the glass draft shield. Ensure that the glass cover of the draft shield does not fall to the floor!

6.3 A well maintained balance is a joy forever

We have enclosed a brush and cleaning tweezers for cleaning your balance. These aids can be found in drawer 10 on the left of the evaluation unit. To clean the weighing chamber, proceed as follows:

- Remove the glass cover of the

weighing chamber.

- MT balances: Grasp the weighing chamber plate with the holder at the tip of the cleaning tweezers and lift it together with the weighing pan completely out of the weighing chamber.

UMT balances: Grasp the weighing chamber plate with the holder at the tip of the cleaning tweezers and lift it with the weighing pan and the guarding completely out of the weighing chamber.

- Clean the weighing chamber plate and the top and bottom of the weighing pan with the brush. Especially ensure that no fibers or dust particles remain on the shaft of the weighing pan.

Operating instructions METTLER TOLEDO MT/UMT balances

- Using the cleaning tweezers, first reinstall the weighing chamber plate, then the weighing pan in the balance.

- Replace the glass cover of the draft shield.

Operating instructions METTLER TOLEDO MT/UMT balances

Cleaning

The balance housing and the weighing pan are made of high-grade, resistant materials. You can thus use any commercially available cleaning agent for cleaning.

- MT/UMT balances can best be cleaned with a damp cloth.

Cautionary note

Ensure that no liquids can enter the AC adapter or the balance.

6.4 What your balance brings with it

The following accessories are supplied with your balance:

- Protective cover for the display

- AC adapter with holder and installa-

tion set

- Operating instructions MT/UMT

balances

- Short-form operating instructions

MT/UMT balances

- Brochure “Bidirectional data inter-

face of the METTLER TOLEDO AT/MT/UMT balances”

- “Weighing the right way”

- Cleaning brush

- Cleaning tweezers

- Weighing tongs

6.5 Additional information and accessories for your balance

For below-the-balance weighings your balance is equipped with an opening for a hanger. Remove the glass cover of the weighing chamber. Tilt the balance to the side and swing the cover of the opening on the underside of the balance to one side. You can now attach a pan or a holder to the horizontal hole underneath the weighing pan.

Do not attach these to either of the two rings!

7 Any questions?

7.1 What happens if the weight display is unstable?

Since it is not always easy to determine the exact cause of an unstable display the most frequent sources of error are listed below.

You will find detailed explanations in the enclosed booklet “Weighing the right way”.

An unsuitable location

For the expansion of your balance, for special applications and for different types of weighing problems, a variety of

peripheral units and information brochures are available from METTLER

TOLEDO.

Operating instructions METTLER TOLEDO MT/UMT balances

Strong drafts (e.g. from air conditioning systems) or vibrations of the bench are factors that can cause disturbances.

- Look for a suitable location, adapt

the vibration adapter to the local conditions (see Section 3.3).

Operating instructions METTLER TOLEDO MT/UMT balances

Electrostatic charging of weighing samples and containers

This charging frequently appears in heated rooms with dry air (below 40 45% rel. humidity) and with weighing samples made of glass or plastic. The electrical charges generate forces that can disturb the weighing. The small, circular draft shield with its metal framework and the weighing pan are grounded and considerably reduce the electrostatic charging.

- In the simplest case, it may be sufficient to also place the weighing sample in a metal container.

Magnetic weighing samples or containers

In simple cases, it may be sufficient to increase the distance between the weighing sample and the weighing pan. For this, place the weighing sample on a nonmagnetic metallic (e.g. aluminum) or glass vessel.

Weighing samples or containers that are not at ambient temperature

Weighing samples or containers that are warmer or colder than the ambient temperature of the balance can cause disturbing air currents and buoyancy errors. Weight changes due to the uptake or evolution of surface moisture can also be the cause. These lead to wrong or unstable weighing results.

- Wait until the weighing sample and the container have attained the ambient temperature. Do not touch the weighing sample or the container with your hand (about 35 °C), but use only tweezers or the weighing tongs.

Weighing samples or containers that absorb or evolve moisture readily

All weighing samples or containers made of wood, cardboard, paper, cork (e.g. holder for round-bottomed flasks), plastic or rubber can absorb or evolve enough moisture to make the display unstable and cause display of nonreproducible or wrong weighing results.

- If at all possible, containers made of such material should be replaced by metal or glass vessels. If this is not possible, operations should at least be performed in a room with a constant atmospheric humidity.

Operating instructions METTLER TOLEDO MT/UMT balances

Contamination

Powder, liquid or other residues at the edge of the weighing pan or between the weighing pan and the draft cover can lead to unstable displays if the weighing pan no longer has completely unrestricted movement.

- Clean the weighing pan and the draft collar (see Section 6.3).

The weighing process adapter is switched off

If the weighing process adapter is switched off, the weight display does not always achieve stability when the local conditions are unfavorable and measurements are performed in the fine range.

7.2 How can the weighing speed be increased?

The weighing speed or the stabilization time of your balance is influenced considerably by the following factors and settings:

Vibration adapter

If the local conditions allow (see Section 3.3), you can shorten the stabilization time of your balance by setting the medium or small wave symbol of the vibration adapter. Changing the setting of the vibration adapter by one step causes your MT/UMT to react around a third faster.

- Use this setting of the weighing process adapter exclusively for applications in which the dynamics of the weighing process are of prime interest (see Section 3.2).

Readability

If your application allows, you should reduce the readout increments for the last decimal place. The larger the readout increments (e.g. steps of 5 instead of 1), the more rapid the operation of your balance (see Section 4.4).

Automatic stability detection

Your balance achieves stability quicker if you reduce the stability detection. If you select, for example, stage 1 (

ASD –1–

(

ASD –6–

) instead of stage 6

), the balance releases the weighing result as stable decidedly more quickly (see Section 4.4).

7.3 What happens if...?

...the display remains completely blank?

Possible causes are:

- no power line voltage

- power cable not connected

- wrong power line voltage

Check and if necessary rectify the specified error sources. If the balance does not function after switching on with the «On/Off» key, contact METTLER TOLEDO service.

Always select the fastest setting in the menu or configuration register that your application allows. You can naturally combine all measures and hence produce a marked increase in the weighing speed of your balance.

Operating instructions METTLER TOLEDO MT/UMT balances

AUTOCALIN

0.367

AUTOCALIN

...during a weighing the audio warning beep sounds and the adjacent symbol appears in the display?

- If the fully automatic self-adjustment

is switched on (see Section 4.4), your balance shows that it wishes to adjust itself (AUTOCALIN = Auto- matic Calibration and Linearization). But there is no need for you to interrupt your work for this. Your balance will wait until you have not performed any weighings for about 5 minutes and will then adjust and linearize itself. During this process, the symbol flashes.

You also have the possibility, however, to trigger the adjustment immediately with a keystroke. Your method of procedure is described in Section 5.4. The symbol in the display fades when adjustment is ended.

...after connection to the power supply the adjacent display appears?

-OFF-

- You have disconnected your balance from the power supply without previously switching it off by lifting the «On/Off» key, or a power outage has interrupted the balance operation. After reconnection to the power supply or when the power is restored, the balance is not switched to standby.

- Press the «On/Off» key to switch the balance on again. An extended internal self-test is then run with display of the model designation and the software version. All display segments light up briefly and your balance is then ready for weighing again.

...the display shows overload or underload?

- Overload is displayed when the weight of the loaded weighing sample is larger than the weighing range.

- Underload is displayed when the weighing range is not reached. This applies when the weighing pan is missing, or the weighing pan touches the draft collar and no longer has unrestricted movement. In this case switch the balance off, position the weighing pan correctly and then switch the balance on again.

...the display “0.0000” flashes?

...the status indicators suddenly disappear?

- Depending on the setting in the configuration register, the status indicators 21 are either displayed permanently or only for a few minutes after the balance has been switched on (see Section 4.5).

...the balance returns automatically from the menu or the configuration register to the weighing mode?

- You have selected the menu or the configuration register and not pressed a key for 1 minute. Your balance thus assumes that you do not wish to make any changes and returns to the weighing mode.

0.000000

Zero is not defined:

- Place the weighing pan on the balance.

- Remove the load from the weighing pan.

Operating instructions METTLER TOLEDO MT/UMT balances

5.346 mg

...no weighing results or nonsensical characters are printed out on the attached printer?

- To ensure correct functioning of the attached printer, different settings have to be made in the configuration register, including values for the data transmission and the parity (see Section 4.6). Information regarding the correct settings can be found in the handbook of your printer.

...the triangle symbol appears in the display?

...a flashing circle appears above the weight unit?

5.346 mg

- If a weighing result has been transmitted via the interface (with the «Print» key), in fully automatic operation the draft shield opens automatically. So that you can check the result or if need be note it down, the display remains “frozen” for 5 seconds, and this is indicated by the flashing circle.

- You have pressed the «Print» key. Your balance signals that it is ready to transmit a released weighing result (stability indicator faded) via the interface (e.g. to a printer).

no rEF

7.4 What does this error

message mean?

- Error messages in the display draw your attention to faulty operation, namely that the balance was not able to perform a procedure properly. Error messages are supported by an audio signal (“twitter”).

Wrong or missing reference weight

- If one of the application units percent (%) or piece ( been selected as weight unit 2, the balance must have a reference weight available. The following errors can appear:

- No reference weight has been loaded.

PCS

Stk

) has

Err rEF

Err LOAd

bAd LOAd

-A wrong reference weight has been loaded.

- The balance returns automatically to the weighing mode.

The weight lies outside the tolerance

The following causes could be responsible:

-a wrong external adjustment weight.

- the weighing pan is loaded during the adjustment.

The adjustment procedure is aborted automatically and the balance returns to the weighing mode.

- You have started the adjustment test. A weighing sample is still on the weighing pan. Remove it.

Operating instructions METTLER TOLEDO MT/UMT balances

Err.unStb

Err tiME

Fault in the adjustment

- The adjustment procedure of the balance has been disturbed.

- The adjustment is automatically aborted and the balance returns to the weighing mode.

The wait time of 1 minute has run out

This could have the following causes:

- The setting of the automatic stability detection (ASD) is too high. After pressing the «Print», «Re-Zero» or «Set» key (with %,

PCS

Stk

), sta-

bility is not reached within 1 minute.

The corresponding procedure is aborted automatically and the balance returns to the weighing mode.

7.5 What does this term mean?

We have “translated” the most important technical terms for you. References (in italics) show you the section(s) in which you can find further information.

Adjustment

Matching the balance to a reference weight. Adjustment, see also proFACT

Sections 4.4, 5.4 and 5.5

- The weight for the external adjustment has not been loaded.

-A wrong weight has been loaded.

CAL tESt

Adjustment test

Test function which can be called up in the menu to allow checking of the adjustment without adjustment actually being performed.

Section 5.5

Ambient conditions

Local conditions at the location of the balance. The following local conditions can lead to display errors during weighing: unsuitable location, changes in the temperature, atmospheric humidity or the atmospheric pressure, magnetic fields, electrostatic forces, vibrations, drafts caused by air conditioning.

Section 7.1

Application unit

Unit selectable in the configuration register that is used for applications in which not only the weight, but also a quantity derived from it (piece, percent) is determined and displayed.

Sections 4.5, 5.2 and 5.3

Automatic door function

Automatic opening and closing mechanism for the glass draft shield that ensures that the balance and the draft shield are always in the correct position for the next weighing step.

Section 3.4

Automatic stability detection (ASD)

Continuous automatic check of the weight value for stability. The weight display is considered stable when its change with time lies within a preset limit. Different stages can be configured by the user and correspond to various limits. The stability of the display is attained when the stability detection symbol in the upper left corner of the display fades. Also with Re-Zero (taring) the display is set to zero only when stability has been achieved.

Section 4.4

Autozero

Automatically corrects the zero display if drifting occurs or the weighing pan is contaminated.

Section 4.4

Baud rate

See “Data transmission rate”.

Bit (Binary digit) Unit used for the information content of a communication.

Section 4.6

Operating instructions METTLER TOLEDO MT/UMT balances

Coarse range

In comparison with the fine range, in the coarse range you work with a resolution reduced by a factor of 10. This makes the balance faster and the weighing results are extremely stable.

Sections 2.3 and 2.4

Configuration

The sum total of all settings selected for the parameters in the configuration register.

Section 4

Configuration register

Register with tree-like structure in which operational settings, weight units and much more can be matched to the needs of the user. The configuration register can be protected against inadvertent changes with the aid of the jumper.

Section 4 and pages 78 and 79

Configuring

Changing the settings in the configuration register.

Section 4

Data transmission rate

Specifies the rate at which the data are transferred. Also called baud rate: 1 baud = 1 bd = 1 bit/second.

Section 4.6

DeltaTrac® Dynamic graphic indicator with 60 radial indicators. Displays the used and remaining weighing range. Graphic complement to the alphanumeric display; also suitable for use as a weighing-in aid.

Sections 2.2 and 5.2

Differential weighing

Determination of the weight of a sample before and after a weight change.

Digit

Display unit; a digit corresponds to a display increment of the last decimal place.

-1 digit = 1d = 0.001 mg in the coarse range

-1 digit = 1d = 0.0001 mg in the fine range

7.6 How are weight units converted?

The following table will facilitate the conversion between the weight units available for your balance.

Gram Milligram Microgram Carat Pennyweight Grain Momme gmgµg ct/C.M. dwt GN mo

(metr.) koil

1 g = 1 1’000 1’000’000 5 0.6430149314 15.432358353 0.2666666667

1 mg = 0.001 1 1’000 0.005 0.0006430149 0.0154323584 0.0002666667

1 µg = 0.000001 0.001 1 0.000005 0.0000006430 0.0000154323 0.0000002667

1 ct/C.M. = 0.2 200 200’000 1 0.1286029863 3.0864716706 0.0533333333

1 dwt = 1.55517384 1’555.17384 1’555’173.84 7.7758692 1 24 0.414713024

1 GN = 0.06479891 64.79891 64’798.91 0.32399455 0.0416666667 1 0.0172797093

1 mo = 3.75 3’750 3’750’000 18.75 2.4113059926 57.871343824 1

7.7 Where will I find details of...?

The following index shows you the page number of these instructions on which you will find the information appropriate to a particular theme. The page numbers in bold print refer to the most important information for the specific search word.

Absolute weighing 17 AC adapter 4, 51 Accessories 55 Adjustment 29, 45, 47, 64, 65 Adjustment mode 30, 45, 48 Adjustment weight 47 Adjustment test 48 Application unit 31, 66 Applications 11, 14, 16, 18, 28, 39 Automatic door function 20, 66 Automatic door operation 20 Automatic stability detection 26, 66 Autozero 28, 66

Beeper setting 33 Below-the-balance weighing 56

Cleaning 54 Coarse range 11 Configuration register 21, 67

Data interface 33

Dispensing 17 Draft shield 9 Drop symbol 17 DeltaTrac® 11, 41, 67

Electrostatic charging 57 Error message 64 External adjustment weight 30, 47

Factory setting 24, 25, 68 Fine dispensing 17 Fine range 11, 68

Glass draft shield 9

Interface 33, 69

Jumper 38

Operating instructions METTLER TOLEDO MT/UMT balances

Linearization 29, 45, 69

Magnetic weighing samples or containers 57 Manual adjustment 45, 47 Menu 13

Operational setting 23, 25 Overload 62

Percent 40 Percent weighing 40, 70 Piece counting 20, 42, 70 Power outage 8, 61 Printer 37, 49 proFACT 29, 45, 71 Program cassette 38, 71

Readability 27, 71 Readout increment 27 Reference weight 40, 43, 71 Repeatability 27, 71 Resolution 11, 72 Re-Zero 72

Self-adjustment, fully automatic 30, 45 Self-test 5, 8, 72 Setting options 13, 21 Stability detection 26, 66, 72 Stabilization time 59, 72 Standby 7, 72 Status indicators 32, 73 Switching off the balance 7, 61

Taring 6, 73

Underload 62 Unstable display 19, 56

Vibration adapter 18, 73 Vibrations 18

Wait condition 5, 8, 73 Wave symbol 18 Weighing in 17 Weighing mode 5, 73 Weighing process adapter 17, 73 Weighing speed 28, 59, 67, 73 Weight unit 31, 39, 74

Weighing mode

Set reference 1) weight for %

Set reference 1) weight for piece

Internal adjustment

Operational setting

Return to factory setting

Press and hold key

Basic settings

Automatic stability detection

Configuration registerMenu

Weight units

Weight unit 1

Interface

Data transmission mode

Data transfer rate

External 3) adjustment

Readability 4)

Weight unit 2

Operating instructions METTLER TOLEDO MT/UMT balances

Set weighing process adapter

Readability 4) (fine range)

Parity

Set vibration adapter

Fully automatic door function

Selection of the menu Selection of the menu options

Autozero

Status indicators

proFACT(Adjustment and linearization)

Transmission protocol

CALIN

Beeper setting End-of-line

mode

Configuration registerMenu

Configuration

Selection of the config. register Selection of the sectors

Appears only if weight unit 2 is set in the con-

1) figuration register to percent (%) or piece (

PCS

Stk

Select 1

Cancel

Set

Selection of the settings Selection of the parameters

Cancellation of the changes and return to the weighing mode

Saving of the settings and return to the weighing mode

Switching off the balance by pressing key upward

Select 1

Select 2

Cancel

Set

Selection of the settings

Cancellation of the changes and return to the weighing mode

Saving of the current configuration and return to the weighing mode

Appears only if the internal adjustment

2) set in the configuration register.

Appears only if the external adjustment (

3) set in the configuration register.

The following appears with the UMT2:

4) d = 1µg *, 2 µg, 5 µg, 10 µg dF = 0.1 µg *, 0.2 µg, 0.5 µg, 1 µg

Factory setting

(Auto Off

USEr

) is

Technical Specifications

Modell UMT2 UMT5 Comparator MT 5

eadability 0.1 µg 0.1 µg 1 µg Weighing capacity 2100 mg 5100 mg 5100 mg Taring range (by subtraction) 0...2100 mg 0...5100 mg 0...5100 mg

Repeatability (s) 0...2 g 0.25 µg 0.25 µg 0.8 µg Repeatability (s) 2...5 g 0.4 µg 0.9 µg

Linearity ±1 µg ±4 µg ±4 µg Linearity referred to 500 mg ±0.5 µg ±2 µg ±2 µg

Stabilization time (typical) 10, 16, 24 s 15, 20, 30 s 9, 12, 16 s

Corresponding to setting of vibration adapter.

Built-in adjustment weights 2 x 1 g 2 x 2.5 g 2 x 2.5 g

Measured to ±5 µg at an air density of 1200 mg/l on virtual mass with density 8.0 g/cm3.

Adjustment proFACT Fully automatic motorized self-adjustment with two built-in weights

The accuracy of the adjustment depends on the geographic location and the height above sea level.

Adjustment with external weight: 2 g 5 g 5 g

Display with Deltatrac® LCD (liquid crystal)

Display sequence 0.2...0.4 s variable

Sensitivity drift (5...40°C) Maximum deviation with automatic self-adjustment proFACT ±0.00015%,

(with automatic self-adjustment switched off) 1 ppm/°C.

Linearization Automatic self-linearization of the weighing curve (simultaneously with motorized adjustment proFACT). Data interface CL and RS232C, bidirectional, built in as standard, all lines galvanically separated.

Glass draft shield Automatic motorized opening or at a keystroke.

Equipment designed test conditions P: 115 V or 230 V, admissible voltage fluctuations: -20%...+15%, frequency: 50/60 Hz, max. power consumption 15.5W. Power supply (national codes) S: 12.8 V=,6.5 V=,10.8 V,=16.7 V=.

Pollution degree 2. Overvoltage category II. Temperature: 5...40 °C. max. relative atmospheric humidity: 80% for temperatures up to max. 31 °C linearly decreasing to 50% at 40 °C. Height: 6000m. Use only indoors in closed rooms.

Weighing pan with feedthrough for ø 16 mm ø 16 mm ø 27 mm below-the-balance weighing Surface-treated aluminum

Measures (W x L x H) Cell 128 x 287 x 113, evaluation unit 202 x 294 x 92 mm AC adapter (W x L x H) 115 x 140 x 53 mm Weight Cell 2.4 kg, evaluation unit 2.5 kg, AC adapter 1.2 kg

Operating instructions METTLER TOLEDO MT/UMT balances

Mettler Toledo MT, UMT Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

1Your balance smooths the way

1.2 Preparing your balance

1.3 Weighing made simple

2.3 How you can weigh in the coarse and fine range

3Your balance is an adaptable balance

3.1 What is the menu?

3.4 How to switch off the fully automatic door function

4.1 What is the configuration register?

4.2 How is the configuration register used?

4.3 In the first sector you return to the factory settings

4.6 The fourth sector presents a communication-friendly balance

4.8 How to protect your settings against inadvertent change

5.1 Your balance can work with two weight units

5.2 Your balance also works with percentages and shows plus/minus deviations

5.3 Do you wish to count pieces?

5.6 How to print out the weighing result

6.4 What your balance brings with it

6.5 Additional information and accessories for your balance

7 Any questions?

7.1 What happens if the weight display is unstable?

7.2 How can the weighing speed be increased?

7.3 What happens if...?

7.5 What does this term mean?

7.6 How are weight units converted?

Technical Specifications