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30203401C 8/10/2017 7:18 AM - Schema ST4 PDF engine - Layout by Victor Mahler
Precision and Analytical Balances
ME-T
Overview balance
0.1 mg
9
1 mg
9
5
7
7
1
2
10 mg~0.1 g
3
4
6
7
1
2
3
4
5
5
1
2
3
Balance overview legend
1 Capacitive color TFT touch screen
3 Level indicator
5 Weighing pan
7 Glass draft shield
9 Legal for trade (LFT) sealing
11 Socket for AC/DC adapter
13 USB device
6
12
13
14
10
11
8
2 Operating keys
4 Draft shield element
6 Handle for operation of the draft shield door
8 Leveling foot
10 Kensington slot for anti-theft purposes
12 RS232 serial interface
14 USB host
Precision and Analytical Balances 3
Overview operation keys
4
1 2 3 4 5
Terminal keys legend
No.
1
Key Name
ON/OFF
Explanation
Switches the balance on or off.
4
5
2
3
Capacitive color TFT touch screen
Tare
Zero
Home
General navigation
Tares the balance.
Zeros the balance.
Returns from any menu level, or other window to the application home screen.
1 Safety Information
•
•
•
Read and understand the instructions in this User Manual before using the instrument.
Keep this User Manual for future reference.
Include this User Manual if you pass on the instrument to other parties.
If the instrument is not used according to the information in the Operating Instructions or if it is modified, the safety of the instrument may be impaired and Mettler-Toledo GmbH assumes no liability.
Additional information about this balance can be found in the Operating Instructions on the CD-
ROM or online.
u www.mt.com/library
1.1 Definition of signal warnings and symbols
Safety notes are marked with signal words and warning symbols. These show safety issues and warnings.
Ignoring the safety notes may lead to personal injury, damage to the instrument, malfunctions and false results.
WARNING for a hazardous situation with medium risk, possibly resulting in death or severe injury if not avoided.
CAUTION
NOTICE for a hazardous situation with low risk, resulting in minor or moderate injury if not avoided.
for a hazardous situation with low risk, resulting in damage to the balance, other material damage, malfunctions and erroneous results, or loss of data.
Precision and Analytical Balances
Electrical shock
General hazard: read the Operating Instructions for information about the hazards and the resulting measures.
1.2 Product safety information
The balance has been tested for the experiments and intended purposes documented in the appropriate manual. However, this does not absolve you from the responsibility of performing your own tests of the products supplied by us regarding their suitability for the methods and purposes you intend to use them for.
Intended use
This balance is designed to be used in laboratories by trained staff. The balance 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 balance owner
The balance owner is the person that uses the balance for commercial use or places the balance at the disposal of his staff. The balance owner is responsible for product safety and the safety of staff, users and third parties.
METTLER TOLEDO assumes that the balance owner provides the necessary protective gear, appropriate training for the daily work and for dealing with potential hazards in their laboratory.
Safety notes
WARNING
Risk of electric shock
Contact with parts that contain a live current can lead to injury and death.
1 Only use the METTLER TOLEDO power supply cable and AC/DC adapter designed for your balance.
2 Connect the power cable to a grounded power outlet.
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 balance due to incorrect parts
Using incorrect parts with the balance can damage the balance or cause the balance to malfunction.
− Only use parts supplied with the balance, listed accessories and spare parts from Mettler-
Toledo GmbH.
Precision and Analytical Balances 5
2 Design and Function
2.1 User Interface
NOTICE
Risk of damaging the touch screen with pointed or sharp objects
Do not use pointed or sharp objects to navigate the touch screen. This may damage the surface of the touch screen.
− Operate the touch screen with your fingers.
The screen is a capacitive color TFT touch screen. The screen displays information and allows the user to enter commands by tapping certain areas on its surface. You can choose the information displayed on the screen, change the balance settings and perform certain operations on the balance.
Only those elements which are available for the current dialog appear on the display.
2.1.1 Application home screen
The application home screen appears after switching the balance on. It always displays the last application that was in use before the balance was switched off. The application home screen is the main screen of the balance. Every function can be accessed from here. You can return to the application home screen at any time by pressing the home button in the lower right corner of the screen.
Prepare weight and start
6
Information and work bars
Name
1 Weighing information bar
2 Work title bar
3 Value bar
4 Main navigation
Explanation
Displays the weighing-in aid and general balance information.
Displays information about the current activity.
Displays information about the current weighing process.
Work-related functions.
Information fields
5
Name
Weighing-in aid
6 Short balance information
7 Weighing value field
8 Coach text field
Explanation
A dynamic graphic indicator displays how much of the total weighing range is in use.
Readability and capacity of the balance.*
Displays the value of the current weighing process (model-specific).
Displays instructions for the current weighing process.
* For approved balances: Min (minimum capacity) and e (verification of scale interval) are shown in the upper left corner.
Precision and Analytical Balances
Action buttons
Name
9 Main activity configuration
Explanation
To configure the current application (e.g. Weighing ).
10 Detailed balance information Displays detailed technical data about the balance.
11 Weighing unit
12 Activities
13 Print
Displays the unit of the current weighing process (model- and country-specific).
Opens the activities selection.
Prints out results and/or settings (printer required).
14 Settings/preferences
15 Status information field
Configures settings/preferences.
Displays information about the system status.
2.1.2 Input dialogs
2.1.2.1 Entering characters and numbers
The keyboard allows the user to enter characters, including letters, numbers and a range of special characters.
If a barcode reader is connected to your balance and your sample provides a barcode, scan the product barcode instead of entering the designation manually. The name of the sample appears in the respective information field and can be printed on the reports. The ID is frequently scanned via barcode reader to ensure that the sample is clearly assigned to the corresponding product.
ID 1 - Label
Name
1 Input field
2 Delete all
3 Discard
4 Delete
5 Confirm
6 Shift
7 Specialized tabs
8 Explanation field
Explanation
Displays all characters that have been entered.
Deletes all entered characters.
Discards the entered data and exits the dialog.
Deletes the last character.
Confirms the data entered.
Switches between lower and upper case letters.
Switches keyboard mode for entering letters, numbers or special characters.
Extra information about the value to be entered (e.g. maximum number of characters available).
Precision and Analytical Balances 7
2.1.2.2 Changing the date and time
The dialog (Picker view) allows the user to set the date and time.
Time
8
Name
1 Change date/time format
2 Pick button
3 Picker field
4 Pick button
5 Selection tabs
Explanation
Various date/time formats can be selected.
Increment.
Displays the defined time/date.
Decrement.
Tabs of the selectable sub-categories.
2.1.3 Lists and tables
The basic elements in a simple list include a content title and a list of sub-elements. Tapping an element opens a list of sub-elements or an input dialog.
General configuration
Weighing options
Publishing
Devices/connectivity
System settings
Name
1 List title
2 Contextual help
3 Back button
4 List element title
5 Scroll position
6 Selection tabs
Explanation
Title of the current list.
Additional information about the current process
Moves go one step back.
Title of the list element.
Scrolls through the list.
Tabs of the selectable sub-categories.
Precision and Analytical Balances
2.2 Main settings and activities at a glance
The diagram below provides an overview of the main settings of an application (in this case, Weighing ).
Depending on the application, the options available to be selected and their content may differ. All applications is based on this concept.
Application main configuration
Balance information
General settings
Precision and Analytical Balances
Activities
9
10
2.2.1 Touch screen navigation
To interact with the balance, use the screen and the operating keys at the bottom of the screen. Using the screen to navigate is similar to using a smartphone or tablet PC.
Opening an application
Navigation: > Activities - Weighing applications
To open settings or applications, tap with your finger on the application symbol (e.g. Weighing ).
There is not enough space to show all the weighing applications on one screen. Scroll horizontally to reach the applications on the second page.
Activities
Weighing applications
Formulation
Counting
Check weighing
Backweighing
Scrolling
Navigation: > Quick settings
When the options are too numerous to be displayed on one screen, a blue bar on the right side appears.
This means that the user can scroll up and down. To scroll simply place your finger anywhere on the list and drag it up or down.
Quick settings
Date and Time
Brightness
Sound
ON (3 of 3 beeps)
Language
Precision and Analytical Balances
Using shortcuts
To simplify navigation on the capacitive color TFT touch screen, there are a few shortcuts that provide quick access to key areas of the balance. For example, the weighing value field on the application home screen works as a shortcut (see screen below), as does the weighing unit next to the weighing value field. Other shortcuts may be available to use depending on the application.
Every setting that can be changed directly via shortcut, can also be changed in the main configuration settings for that application.
3 Installation and Putting into Operation
Finding more information
Additional information about this balance can be found in the Operating Instructions on the CD-
ROM or online.
u www.mt.com/library
WARNING
Risk of electric shock
The balance must be disconnected from the power supply before performing all setup and assembly work.
Precision and Analytical Balances 11
12
3.1 Scope of delivery
NOTICE
Risk of damage to balance due to incorrect parts
Using incorrect parts with the balance can damage the balance or cause the balance to malfunction.
− Only use parts supplied with the balance, listed accessories and spare parts from Mettler-
Toledo GmbH.
Components
Draft shield
Weighing pan with pan support high, 235 mm low, 170 mm
ø 90 mm
ø 120 mm
180 × 180 mm
Draft shield element
Pan support
Protective cover
Universal AC/DC adapter
AC/DC adapter with country-specific power cable
Operating Instructions or User Manual; printed or on CD-ROM depending on country of use
Declaration of conformity
Model
0.1 mg 1 mg
–
–
–
–
–
–
–
–
–
-
-
10 mg / 100 mg
–
–
–
–
-
3.2 Selecting the location
•
•
•
•
•
•
A good location will enable the balance to work accurately and reliably. The surface must be able to safely take the weight of the balance when fully loaded. The following local conditions must be observed:
If the balance is not horizontal at the outset, it must be leveled during commissioning.
•
•
Operate the balance in indoor environments only and at an altitude of less than 4000 m above sea level.
Before switching on the balance, leave the parts to reach room temperature (+5 to 40°C).
Ensure that the relative humidity is between 10% and 80% and non-condensing conditions are met.
The power plug must be easily accessible.
Find a firm horizontal location which is as free from vibrations as possible.
Avoid direct sunlight.
Avoid excessive temperature fluctuations.
Avoid powerful drafts.
Ensure that the surroundings as free from dust as possible.
Precision and Analytical Balances
3.3 Installing components
Balances with readability of 0.1 mg
Place the following components on the balance in the specified order:
1 Push the side glass doors back as far as they will go.
2 Insert the draft shield element (1).
3 Insert the weighing pan (2).
Balances with readability of 1 mg
Place the following components on the balance in the specified order:
1 Push the side glass doors back as far as they will go.
2 Insert the weighing pan (1).
Balances with readability of 10 mg / 100 mg
Place the following components on the balance in the specified order:
1 Place the draft shield element (1).
2 Carefully pull apart the draft shield element to fix it under the retaining plate.
3 Place the pan support (2).
4 Place the weighing pan (3).
2
1
1
3
2
1
Precision and Analytical Balances 13
3.4 Connecting the balance
WARNING
Risk of electric shock
Contact with parts that contain a live current can lead to injury and death.
1 Only use the METTLER TOLEDO power supply cable and AC/DC adapter designed for your balance.
2 Connect the power cable to a grounded power outlet.
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 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 a universal AC/DC adapter or an AC/DC adapter with 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.
1 Connect the AC/DC adapter to the connection socket on 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.
14
3.5 Setting up the balance
3.5.1 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 connected to the power supply for at least 30 minutes (60 minutes for 0.1 mg models).
§
The balance is connected to the power supply.
− Press .
ð After the start screen has disappeared, the application home screen will open.
ð The balance is ready to use.
When the balance is switched on for the first time, the Weighing application home screen will open. If the balance is switched on again, it will always go to the home screen of the application last used before switching it off.
3.5.2 Leveling the balance
Exact horizontal and stable positioning are essential for repeatable and accurate weighing results.
Precision and Analytical Balances
There are two adjustable leveling feet to compensate for slight irregularities in the surface of the weighing bench.
The balance must be leveled and adjusted each time it is moved to a new location.
1 Position the balance at the selected location.
2 Align the balance horizontally.
3 Turning the two front leveling feet of the housing until the air bubble is in the middle of the glass.
Example
Air bubble at 12 o'clock:
Air bubble at 3 o'clock:
Air bubble at 6 o'clock:
Air bubble at 9 o'clock: turn both feet clockwise.
turn left foot clockwise, right foot counterclockwise.
turn both feet counterclockwise.
turn left foot counterclockwise, right foot clockwise.
3.5.3 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.
After reaching the operating temperature.
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.
3.6 Performing a simple weighing
Navigation: > Activities - Weighing applications > Weighing
This section describes how to perform a simple weighing operation. The basic navigation concept and the basic functions of the balance are also explained.
When you switch on the balance for the first time, the Weighing application home screen opens automatically. If the balance has already been used, the application that was last used before the balance was switched off will open. If another application is running, switch to Weighing .
1 Press to zero the balance.
ð The application home screen appears.
2 Place the sample on the weighing pan.
ð The instability symbol appears and the value in the weighing value field becomes light blue .
3 Wait until the instability symbol disappears and the value in the weighing value field becomes dark blue again.
ð The weighing process is complete.
ð The results are now displayed.
Zeroing
Use the zeroing key before starting to weigh anything.
1 Unload the balance.
2 Press to zero the balance.
ð All weight values are measured in relation to this zero point.
Precision and Analytical Balances 15
16
Taring
If you are working with a weighing container, tare the balance.
1 Place a container on the weighing pan.
ð The weight is displayed.
2 Press to tare the balance.
ð 0.000 g and Net appears in the display. Net indicates that all weight values displayed are net values.
3 Place the sample in the container.
ð The results are now displayed.
•
•
If the container is removed from the balance, the tare weight will be shown as a negative value.
The tare weight remains stored until the key is pressed again or the balance is switched off.
Switching off
1 Press and hold until the dialog Switch-off appears.
2 Tap to confirm.
ð The balance switches off and enters standby mode.
• After switching on from standby mode, the balance does not need to warm up. It is immediately ready to start weighing.
• If the balance has been switched off manually, the display will also be off.
To switch off the balance fully, it must be disconnected from the power supply.
4 Maintenance
4.1 Cleaning and servicing
Clean the weighing pan, draft shield element, bottom plate, draft shield (depending on the model) and housing of your balance at regular intervals. The balance is made from high-quality, durable materials and can therefore be cleaned using a damp cloth or a standard cleaning agent.
To thoroughly clean the draft shield glass panels, remove the draft shield from the balance. When reinstalling the draft shield, make sure it is in the correct position.
Please observe the following notes
WARNING
Risk of electric shock
Contact with parts carrying a live current can lead to injury and death.
1 Disconnect the balance from the power supply prior to cleaning and maintenance.
2 Only use METTLER TOLEDO power cables if they need to be replaced.
3 Prevent liquid from entering the balance, terminal or AC/DC adapter.
4 Do not open the balance, terminal or AC/DC adapter.
They do not contain any parts that can be serviced by the user.
NOTICE
Risk of damage to balance due to inappropriate cleaning methods
The balance is made from high quality, resistant materials and can be damaged by certain cleaning agents, solvents or abrasives. Any liquid that enters the housing may damage the balance.
1 Use water and a mild detergent to clean the balance or terminal.
2 Wipe off any spills immediately.
3 Prevent liquid from entering the interior of the balance.
Precision and Analytical Balances
Contact a METTLER TOLEDO representative to find about the service options available – regular maintenance by an authorized service engineer will ensure consistent weighing accuracy over the long term and extend the service life of the balance.
4.2 Cleaning the draft shield (0.1 mg and 1 mg models)
Removing or inserting sliding glass doors
It is possible to remove the sliding glass doors for cleaning or for replacing.
Note
Front and rear glass panels cannot be removed.
1 Remove the handle.
2 Pull the side glass out to the rear.
After cleaning, reinstall all components in the reverse order. Installing the handle after insertion of the glass door.
Precision and Analytical Balances 17
18
5 Technical Data
5.1 General data
WARNING
Risk of electric shock
Contact with parts that contain a live current can lead to injury and death.
1 Only use an approved AC/DC adapter with a current-limited SELV output.
2 Ensure correct polarity
Standard power supply
AC/DC adapter:
Balance power supply:
Primary: 100 – 240 V, ±10%, 50/60Hz, 0.3 A
Secondary: 12 V DC, 0.84 A (with electronic overload protection)
12 V DC, 0.84 A
Can be used up to 2000 m above mean sea level.
NOTICE
If the balance is used above 2000 m mean sea level, the optional power supply must be used.
Optional power supply
AC/DC adapter:
Cable for AC/DC adapter:
Balance power supply:
Protection and standards
Overvoltage category:
Degree of pollution:
Protection:
Standards for safety and EMC:
Range of application:
Environmental conditions
Height above mean sea level:
Ambient temperature:
Relative air humidity:
Warm-up time:
Primary: 100 – 240 V, ±10%, 50/60Hz
Secondary: 12 V DC ±3%, 2.5 A (with electronic overload protection)
3-core, with country-specific plug
12 V DC ±3%, 2.25 A, maximum ripple: 80 mVpp
Can be used up to 4000 m above mean sea level.
II
2
Protected against dust and water
See Declaration of Conformity
For use in closed interior rooms only
Depending on the power adapter (2000 - 4000 m)
Except for China: max. 2000 m
Operating conditions for ordinary lab application: +10 to 30°C
(operability guaranteed between +5 and 40°C)
10% up to 80% at 31°C with a linear decrease to 50% at
40°C, non-condensing
At least 30 minutes (60 minutes for 0.1 mg models) after connecting the balance to the power supply. When switched on from standby, the instrument is ready for operation immediately.
Precision and Analytical Balances
Materials
Housing:
Weighing pan:
Draft shield element:
Draft shield:
Protective cover:
TFT touch screen surface:
Top housing: Plastic (ABS)
Bottom housing: Die-cast aluminum
Pan ø 90 mm: Stainless steel X2CrNiMo 17-12-2 (1.4404)
All others: Stainless steel X5CrNi 18-10 (1.4301)
0.1 mg models: Stainless steel X5CrNi 18-10 (1.4301)
Plastic (ABS), glass
Plastic (PET)
Glass
Precision and Analytical Balances 19
20 Precision and Analytical Balances
30203401C 8/10/2017 7:18 AM - Schema ST4 PDF engine - Layout by Victor Mahler
Mettler-Toledo GmbH
Im Langacher 44
8606 Greifensee, Switzerland www.mt.com/contact
Subject to technical changes.
© Mettler-Toledo GmbH 08/2017
30203401C en www.mt.com/balances
For more information
30203401
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