Mettler Toledo ME-T Precision and Analytical Balances User Manual

User Manual
Precision and Analytical Balances
ME-T
1 Safety Information
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 severe injuries
or death if not avoided.
CAUTION
for a hazardous situation with low risk, resulting in damage to the device or the
property or in loss of data, or minor or medium injuries if not avoided.
Attention
(no symbol)
for important information about the product.
Note
(no symbol)
for useful information about the product.
General hazard
Electrical shock
1.2 Product safety information
Intended use
Your balance is used for weighing. Use the balance exclusively for this purpose. 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.
It is not permitted to use the instrument in explosive atmosphere of gases, steam, fog, dust and
flammable dust (hazardous environments).
General safety information
This balance complies with current industry standards and the recognized safety regulations; however, it can
constitute a hazard in use. Do not open the balance housing: The balance contains no user-serviceable parts. In the
event of problems, please contact a METTLER TOLEDO representative.
Always operate and use your instrument only in accordance with the instructions contained in this manual. The
instructions for setting up your new instrument must be strictly observed.
If the instrument is not used according to these Operating Instructions, protection of the instrument may be
impaired and METTLER TOLEDO assumes no liability.
Staff safety
These operating instructions must be read and understood before using the balance. These operating instructions
must be retained for future reference.
The balance must not be altered or modified in any way. Only use METTLER TOLEDO original spare parts and
accessories.
Precision and Analytical Balances
Safety Information​
3
Safety notes
CAUTION
Damage to the balance
1 Only use indoors in dry locations.
2 Do not use pointed objects to operate the touch screen!
The balance is of a very sturdy design, but is still a precision instrument. It must be handled
with care.
3 Do not open the balance:
The balance contains no user-serviceable parts. In the event of problems, please contact a
METTLER TOLEDO representative.
4 Only use METTLER TOLEDO original accessories and peripheral devices for the balance.
These are specifically designed for the balance.
WARNING
Risk of electric shock
Use only the original universal AC/DC adapter delivered with your balance, and check that the
voltage printed on it is the same as your local power supply voltage. Only plug the adapter into a
socket which is grounded.
4
Safety Information
Precision and Analytical Balances
2 Design and Function
2.1 Overview
1 mg
0.1 mg
9
9
5
7
7
6
4
5
4
3
1
1
2
3
2
10 mg~0.1 g
7
12
6
13
14
5
1
2
10
3
11 8
1
Display
2
3
Leveling foot
4
Operation keys
Handle for operation of the draft shield door
5
Weighing pan
6
Draft shield element
7
Level indicator
8
Kensington slot for anti-theft purposes
9
Glass draft shield
10
RS232 serial interface
11
Socket for AC adapter
12
Legal for trade (LFT) sealing
13
USB device
14
USB host
Precision and Analytical Balances
Design and Function
5
2.2 Operation keys
1
No.
Key
1
2
3
4
5
Name
Explanation
ON/OFF
To switch the instrument on or off.
2
Capacitive color TFT touch screen
General navigation
3
Tare
To tare the balance.
4
Zero
To zero the balance.
5
Home
To return from any menu level, or other window to
the application home screen.
2.3 User Interface
The screen is a capacitive color TFT touch screen. The screen not only displays information, it also allows the user
to enter commands by tapping on certain areas on its surface. You can choose the information displayed on the
screen, change balance settings or perform certain operations on the instrument.
Only those elements which are available for the current dialog appear on the display.
CAUTION
Do not touch the touch screen with pointed or sharp objects!
This may damage the touch screen.
6
Design and Function
Precision and Analytical Balances
2.3.1
Application home screen
The application home screen appears after the startup of the instrument. It always shows the last application that
was being used before the balance was switched off. The application home screen is the main screen of the
balance, from where every function can be accessed. You can always return to the application home screen by
pressing on the home button [ ] in the lower right corner of the screen.
Prepare weight and start
Information and work bars
1
Name
Explanation
Weighing information bar
Shows the weighing-in aid and general balance information.
2
Work title bar
Shows information about the current activity.
3
Value bar
Shows information about the current weighing process.
4
Main navigation
Work-related functions.
Information fields
5
Name
Explanation
Weighing-in aid
A dynamic graphic indicator shows the used amount of the total
weighing range.
6
Short balance information
Readability and capacity of the balance.*
7
Weighing value field
Shows the value of the current weighing process.
8
Coach text field
Shows instructions for the current weighing process.
* For approved balances: Min (minimum capacity) and e (Verification scale interval) are shown in the left upper
corner.
Action buttons
Name
Explanation
9
Main activity configuration
To configure the current application (e.g. Weighing).
10
Detailed balance Information
11 Weighing unit
12
Activities
13 Print
14
Settings/Preferences
15 Status information field
Precision and Analytical Balances
Shows detailed technical data about the balance.
Shows the unit of the current weighing process.
To open the activities selection.
To print out results and/or settings (printer required).
To configure settings/preferences.
Shows information about the system status.
Design and Function
7
2.3.2
2.3.2.1
Input Dialogs
Entering Characters and Numbers
The keyboard dialog allows the user to enter characters including letters, numbers and a variety of special
characters.
ID 1 - Label
1
8
Name
Explanation
Input field
Shows the characters that have been entered.
2
Delete all
To delete all entered characters.
3
Discard
To discard the entered data and to exit the dialog.
4
Confirm
To confirm the data entered.
5
Delete
To delete the last entered character.
6
Shift
To switch between lower and upper case letters.
7
Specialized tabs
To switch the keyboard mode for entering letters, numbers or special characters.
8
Explanation field
Extra information about the value to enter (e.g. the maximum number of characters
available).
Design and Function
Precision and Analytical Balances
2.3.2.2
Changing the date and time
The dialog (Picker view) allows the user to set the date and time.
Time
1
Name
Explanation
Change date/time format
Various date/time formats can be chosen.
2
Pick button
Increment
3
Picker field
Shows the defined time/date.
4
Pick button
Decrement
5
Selection tabs
Tabs of the selectable sub-categories
Precision and Analytical Balances
Design and Function
9
2.3.3
Lists and tables
Basic elements of a simple list include a content title and a list of sub-elements. Tapping on an element opens a list
of sub-elements or an input dialog.
General configuration
Weighing options
Publishing
Devices/connectivity
System settings
1
10
Name
Explanation
List title
Title of the current list
2
Contextual help
Additional information about the current process
3
Back button
To go one step back.
4
List element title
Title of the list element
5
Scroll position
The list can be scrolled.
6
Selection tabs
Tabs of the selectable sub-categories.
Design and Function
Precision and Analytical Balances
3 Installation and Putting into Operation
This section describes how to put the new instrument into operation.
Finding more information
u www.mt.com/balances
3.1 Scope of delivery
Components
Model
0.1 mg
Draft shield
high, 235 mm
low, 170 mm
Weighing pan with pan support
0.1 g / 10 mg
–
–
–
Ø 90 mm
–
–
Ø 120 mm
–
180 x 180 mm
–
Draft shield element
Pan support
1 mg
–
–
–
–
–
–
Protective cover
Universal AC/DC adapter
AC/DC adapter with country-specific power cable
-
-
Declaration of conformity
User Manual
Operating instructions: printed or on CD-ROM depending on the
country.
Precision and Analytical Balances
Installation and Putting into Operation
11
3.2 Installing the 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 will go.
2
Place draft shield element (1).
3 Place weighing pan (2).
2 Note
Cleaning the draft shield see Cleaning and Service.
1
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 will go.
2 Place weighing pan (1).
Note
Cleaning the draft shield see Cleaning and Service.
1
12
Installation and Putting into Operation
Precision and Analytical Balances
Balances with readability of 10 mg / 0.1 g
Place the following components on the balance in the
specified order:
1
Place draft shield element (1): carefully pull apart the
draft shield element to fix it under the retaining plate.
2
Insert pan support (2).
3
Place weighing pan (3).
3
2
1
Precision and Analytical Balances
Installation and Putting into Operation
13
3.3 Installing Protective Cover
Note
Make sure using the correct protective cover, see Accessories and Spare Parts
14
Balances with readability of 0.1 mg / 1 mg
Balances with readability of 0.01 g / 0.1 g
Install the protective cover according to the illustrations
below, using a screwdriver Philips No. 2.
Install the protective cover according to the illustrations
below, using a flat-head screwdriver.
Installation and Putting into Operation
Precision and Analytical Balances
3.4 Selecting the location
Your balance is a sensitive precision instrument; the location where it is placed will have a profound effect on the
repeatability and accuracy of weighing results. Chose a stable surface that is as horizontal as possible. The surface
must be able to safety carry the weight of a fully loaded balance.
Observe ambient conditions (see Technical Data).
Avoid the following:
•
•
•
•
Direct sunlight
Air drafts (e.g. from fans or air conditioners)
Temperature fluctuations
Vibrations
3.5 Connecting the instrument
The balance is supplied with a universal AC/DC adapter or with an AC/DC adapter with a country-specific power
cable. The power supply is suitable for all line voltages in the range: 100 - 240 VAC, 50/60 Hz. For detailed
specifications, see [Technical Data } 26].
Note Allow the balance to warm up for 30 minutes (0.1 mg models need 60 minutes) to adapt itself to the ambient
conditions.
Connect the AC/DC adapter to the connection socket on the back of your balance and
to the power line.
Attention
•
•
•
•
•
Check if the local power supply falls within this range. If this is not the case, under no circumstances connect
the AC/DC adapter to the power supply, but contact a METTLER TOLEDO representative.
The power plug must be accessible at all times.
Prior to use, check the power cable for damage.
Route the cable in such a way that it cannot be damaged or cause a hindrance when working.
Ensure that no liquid ever comes into contact with the AC/DC adapter.
3.6 Leveling the balance
Exact horizontal positioning and stable installation are prerequisites for repeatable and accurate weighing results.
Note To compensate for small irregularities or inclinations (±2 %), the instrument must be leveled and adjusted each
time it is moved to a new location. There are two adjustable leveling feet to compensate for slight irregularities in the
surface of the weighing bench.
Leveling the balance
−
Adjust the two front leveling feet until the air bubble comes to rest
exactly in the middle of the glass:
Air bubble at
"12 o'clock"
turn both feet clockwise
Air bubble at
"3 o'clock"
turn left foot clockwise, right
foot counterclockwise
Air bubble at
"6 o'clock"
turn both feet counterclockwise
Air bubble at
"9 o'clock"
turn left foot counterclockwise,
right foot clockwise
Precision and Analytical Balances
Installation and Putting into Operation
15
3.7 Switching on the balance
Switching on the balance for the first time
1
Remove any load from the weighing pan.
2
Connect the balance using the AC/DC adapter to the mains.
ð After the start screen has disappeared, the balance starts with the application home screen.
After the balance has switched on for the first time, it can be switched on by pressing long on [ ].
Note When the balance is switched on for the first time, the home screen of the application Weighing opens. If the
balance is switched on again, it always starts with the home screen of the application that was last used before
switching off.
3.8 Switching off the balance
1
Press on [ ] and hold until the dialog Switch-off appears.
2
Tap on [ ].
ð the balance switches off and goes into standby mode.
Note
•
•
After switching on from standby mode, the balance needs no warm-up time and is immediately ready for
weighing.
If the balance has been switched off manually, the display is off.
To completely switch off the balance, it must be disconnected from the power supply.
3.9 Zeroing
1
Unload the balance.
2 Press [
] to set the balance to zero.
All weight values are measured in relation to the zero point.
Note Press [
] before starting the weighing process.
3.10 Taring
16
] to set the balance to zero.
1
Tap on [
2
Place the empty container on the balance.
ð The weight is displayed.
3
Press [
] to tare the balance.
ð The status information field on the left side of the screen shows Net and the weighing value field shows
0.000 g.
Installation and Putting into Operation
Precision and Analytical Balances
3.11 Transporting the balance
Switch off the balance and remove the power cable and any interface cable from the balance. Refer to the notes in
section [Selecting the location } 15] regarding the choice of an optimal location.
Transporting over short distances
CAUTION
For balances with a draft shield:
Never lift the balance by its glass draft shield. The draft shield is not sufficiently fastened to the
balance.
Transporting over long distances
CAUTION
If you would like to transport or ship your balance over long distances, use the complete original
packaging.
Note For transporting the balance over a long distance, we recommend to use the transport case, see Accessories and
Spare parts.
3.12 General requirements
3.12.1
Warming up the balance
Before working with 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:
•
•
3.12.2
30 minutes for balances with a readability of 1 mg to 0.1 g.
60 minutes for balances with a readability of 0.1 mg and higher.
Adjusting the balance
To obtain accurate weighing results, the balance must be adjusted to match the gravitational acceleration at its
location and depending on the ambient conditions. After reaching the operation temperature, an adjustment is
necessary in the following cases:
•
•
•
•
•
Before the balance is used for the first time.
After reaching the operating temperature (only for balances with FACT).
When the balance was disconnected from the power or in case of power failure.
After significant environmental changes (e. g. temperature, humidity, air draft or vibrations)
At regular intervals during weighing service.
Precision and Analytical Balances
Installation and Putting into Operation
17
4 Weighing Made Simple
This section describes how to perform a simple weighing. In addition, the basic concept of the navigation and the
basic functions of the balance are explained.
4.1 Main settings and activities at a glance
The diagram below provides an overview of the main settings of an application (in this example, Weighing).
Depending on the application, the selectable options and their content can differ. Every application is based on this
concept.
Application main
configuration
Balance information
General settings
18
Weighing Made Simple
Activities
Precision and Analytical Balances
4.2 Navigation on the touch screen
To interact with the balance, use the screen and the operating keys at the bottom of the screen. The navigation on
the screen is similar to the navigation on a smart phone or tablet PC.
4.2.1
Opening an application
To open settings or applications, tap with your finger on the symbol of the application (e.g. [
] Weighing).
Activities
Weighing applications
Counting
4.2.2
Percent weighing
Percent
weighing
Scrolling
When the options are too numerous to be shown on one screen, a blue bar on the right side appears. This means
that the user can scroll up and down. For scrolling, simply place your finger somewhere in 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
Weighing Made Simple
19
4.2.3
Using shortcuts
To simplify navigation on the capacitive color TFT touch screen, there are a few shortcuts that allow quick access to
the most important areas of the balance. The weighing value field on the application home screen for example
works as a shortcut (see diagram below), so does the weighing unit next to the weighing value field. Depending on
the application, there may be other shortcuts that can be used.
Note Every setting that can be changed directly via shortcut, can also be changed in the main configuration settings of
the application.
4.3 Performing a simple weighing
When you switch on the balance for the first time, the home screen of the application Weighing opens
automatically. If the balance was used already, the last used application before the balance was switched off
opens. If another application is running, switch to the application Weighing.
Navigation:
[ ] > [ ] Activities - Weighing applications > [
1
20
Press [
] to zero the balance or [
ð The initial screen looks like this:
Weighing Made Simple
] Weighing
] to tare the balance.
Precision and Analytical Balances
2
Place a sample on the weighing pan.
ð The unstability symbol
appears at the left side of the screen and the value in the weighing value field
becomes light blue.
ð After a short period of time, the weighing pan is stable. The unstability symbol
in the weighing value field becomes dark blue again.
disappears and the value
ð The weighing process is finished. The result appears on the screen.
4.4 Switching the weighing unit
There are several weighing units available. The default value is country-specific.
The weighing unit can be chosen via the main configuration of the current application or via shortcut. This example
describes how to change the weighing unit via shortcut.
1
Tap on the weighing process unit (shortcut) gram (g).
ð the screen Main unit opens.
Precision and Analytical Balances
Weighing Made Simple
21
2
Put your finger somewhere in the list and drag up to scroll down.
Main unit
g (Default)
3
Choose another weighing unit (e.g. ounce (oz)) by tapping on it.
4
Tap on [ ] to confirm the chosen weighing unit.
ð The weighing unit gram (g) has been changed to ounce (oz).
Note With approved balances, this menu topic has a fixed setting and cannot be changed.
4.5 Changing the resolution
There are several resolutions available. The default resolution is instrument-specific.
The resolution can be changed as follows:
1
22
Tap on the weighing value field.
Weighing Made Simple
Precision and Analytical Balances
2
Tap on 10d - 0.001 g.
Resolution
3
Confirm the chosen resolution by tapping on [ ].
ð The resolution has been changed.
Precision and Analytical Balances
Weighing Made Simple
23
5 Maintenance
WARNING
Risk of electric shock
– The instrument must be disconnected from the power supply, before cleaning or other maintenance
work to be performed.
– Use only the power cord from METTLER TOLEDO, if it needs replacing.
Please observe the following notes:
Note
On no account use cleaning agents which contain solvents or abrasive ingredients, as this can result in damage to
the touch screen.
5.1 Cleaning and Service
Every now and then, clean the weighing pan, draft shield element, bottom plate, draft shield (depending on the
model) and housing of your balance. Your balance is made from high-quality, durable materials and can therefore
be cleaned using a damp cloth or with a standard, mild cleaning agent.
Please observe the following notes:
•
•
•
The balance must be disconnected from the power supply
Ensure that no liquid comes into contact with the balance or the AC adapter.
Never open the balance or AC adapter – they contain no components, which can be cleaned,
repaired or replaced by the user.
•
On no account use cleaning agents which contain solvents or abrasive ingredients, as this
can result in damage to the operation panel overlay.
Do not use wet, but only damp cloth for cleaning.
•
Please contact your METTLER TOLEDO dealer for details of the available service options. Regular
servicing by an authorized service engineer ensures constant accuracy for years to come and
prolongs the service life of your balance.
5.2 Draft Shield
Removing or inserting sliding glass doors
It is possible to remove the sliding glass doors for
cleaning or for replacing. In this case you have to
remove the handle first. Installing the handle after
insertion of the glass door.
Note
Front and rear glass panels cannot be removed.
24
Maintenance
Precision and Analytical Balances
5.3 Disposal
In conformance with the European Directive 2002/96/EC on Waste Electrical and Electronic
Equipment (WEEE) this device may not be disposed of in domestic waste. This also applies to
countries outside the EU, per their specific requirements.
Please dispose of this product in accordance with local regulations at the collecting point
specified for electrical and electronic equipment. If you have any questions, please contact the
responsible authority or the distributor from which you purchased this device. Should this device
be passed on to other parties (for private or professional use), the content of this regulation must
also be related.
Thank you for your contribution to environmental protection.
Precision and Analytical Balances
Maintenance
25
6 Technical Data
6.1 General Data
Standard power supply
AC adapter primary: 100 – 240 V, ±10%, 50/60Hz, 0.3 A
Secondary: 12 V DC, 0.84 A (with electronic overload protection)
Balance power supply: 12 V DC, 0.84 A
Use only with a tested AC Adapter with SELV output current.
Ensure correct polarity
Can be used up to 2000 m height above mean sea level.
Note If the balance is used above 2000 m mean sea level, the optional power
supply must be used.
Optional power supply
AC adapter primary: 100 - 240 V AC, -15%/+10%, 50/60 Hz
Secondary: 12 V DC ±3%, 2.5 A (with electronic overload protection)
Cable for AC adapter: 3-core, with country-specific cable.
Balance power supply: 12 V DC ±3%, 2.25 A, maximum ripple: 80
mVpp
Can be used up to 4000 m height above mean sea level.
Protection and Standards
• Overvoltage categorie:
II
• Degree of pollution:
2
• Degree of protection:
Protected against dust and water.
• Standards for safety and EMC:
See Declaration of Conformity
• Range of application:
For use only in dry interior rooms
Environmental conditions
• Height above mean sea level:
Depending on the power adapter (2000 - 4000 m)
Except for China: max. 2000 m
• Ambient temperature range:
Operating condition for ordinary lab application: +10 to 30 °C
(operability guaranteed between +5 to 40 °C)
Storage condition: -25 to 70 °C
• Relative air humidity:
10% up to 80 % at 31 °C, linearly decreasing to 50 % at 40 °C,
noncondensing
Materials
• Housing:
Top housing: Plastic (ABS)
Bottom housing: Die-cast aluminum, lacquered
• Weighing pan:
Pan ø 90 mm: Stainless steel X2CrNiMo 17-12-2 (1.4404)
All others: Stainless steel X5CrNi 18-10 (1.4301)
26
• Draft shield element:
0.1 mg models: Stainless steel X5CrNi 18-10 (1.4301)
• Draft shield:
Plastic (ABS), glass
• In-use-cover:
Plastic (PET)
• TFT touch screen surface
Glass
Technical Data
Precision and Analytical Balances
www.mt.com/balances
For more information
Mettler-Toledo GmbH
Im Langacher 44
8606 Greifensee, Switzerland
www.mt.com/contact
Subject to technical changes.
© Mettler-Toledo GmbH 02/2016
30203401B en
*30203401*