English
User Manual QS3 Sample Changer for XPR Analytical Balances
Deutsch
Benutzerhandbuch QS3 Probenwechsler für XPR-Analysenwaagen
Español
Manual de usuario Cambiador de muestra QS3 para balanzas analíti-
cas XPR
Français
Guide de l'utilisateur Passeur d'échantillons QS3 pour les balances
d'analyse XPR
简体中文
简明用户手册 QS3自动进样器 适用于XPR分析天平
日本語
ユーザマニュアル QS3サンプルチェンジャー XPR分析天びん用
30491779A2020/12/10 11:04- Schema ST4 PDF engine -Layout by Victor Mahler
1
en
This User Manual is a brief instruction that provides information to handle with the first steps of the
instrument in a safe and efficient manner. Personnel must have carefully read and understood this
manual before performing any tasks.
For full information, always refer to the Reference Manual (RM).
u www.mt.com/QS3-RM
de
Dieses Benutzerhandbuch ist eine Kurzanleitung, die Informationen für den sicheren und effizienten
Umgang mit den ersten Schritten des Gerätes enthält. Das Personal muss dieses Handbuch sorg-
fältig gelesen und verstanden haben, bevor es Aufgaben ausführen kann.
Ausführliche Informationen finden Sie stets im Referenzhandbuch (RM).
u www.mt.com/QS3-RM
es
Este manual de usuario consiste en unas breves instrucciones que proporcionan información para
llevar a cabo los primeros pasos del instrumento de un modo seguro y eficaz. El personal deberá
haber leído y comprendido este manual antes de llevar a cabo cualquier tarea.
Para obtener más información, consulte siempre el manual de referencia (MR).
u www.mt.com/QS3-RM
fr
Ce guide de l'utilisateur est un manuel court qui fournit des informations sur la manipulation de
l'instrument d'une manière efficace et sécurisée dès la première utilisation. Le personnel doit avoir
lu avec attention et compris le présent manuel avant d'entreprendre quelque tâche que ce soit.
Il convient de se référer systématiquement au Manuel de référence (MR) pour obtenir des informa-
tions exhaustives.
u www.mt.com/QS3-RM
zh
本用户手册是一个简要说明，提供了以安全高效的方式操作仪器的前期步骤。人员执行
任何任务之前必须仔细阅读并理解本手册。
有关完整信息，务必查阅《参考手册（RM）》。
u www.mt.com/QS3-RM
ja
このユーザマニュアルは、機器に関する最初の手順を安全で効率的な方法で取扱うた
めの情報が記載された簡易説明書です。ご使用になる前に、必ず本取扱説明書をよく
読んで理解する必要があります。
すべての情報については、必ずリファレンスマニュアル (RM) を参照してください。
u www.mt.com/QS3-RM
2
Overview
1
4
5
6
3
2
7
en
1
Side tunnel with handle, left
5
Side tunnel with handle, right
2 Home position 6
Top panel
3
Weighing pan sample changer
7
Back tunnel
4
Rack with 5 positions, 6 pcs
de
1
Seitentunnel mit Griff, links
5
Seitentunnel mit Griff, rechts
2 Home-Position 6
Deckglas
3
Waagschalen-Probenwechsler
7
Hinterer Tunnel
4
Rack mit fünf Positionen, 6Stk.
es
1
Túnel lateral con asa (izquierda)
5
Túnel lateral con asa (derecha)
2 Posición Home 6
Panel superior
3
Cambiador de muestra de plato de pesaje
7
Túnel trasero
4
Rack con 5posiciones (6uds.)
fr
1
Tunnel latéral avec poignée, gauche
5
Tunnel latéral avec poignée, droit
2 Position Home 6
Panneau supérieur
3
Plateau de pesage du passeur d'échantillons
7
Tunnel arrière
4
Portoir à 5positions, 6unités
3
zh
1
左侧带把手侧面通道
5
右侧带把手侧面通道
2 Home位置 6
顶部面板
3
秤盘自动进样器
7
背部通道
4
6组带有5个槽位的支架
ja
1
ハンドル付きサイドトンネル（左）
5
ハンドル付きサイドトンネル（右）
2 Home位置 6
トップパネル
3
計量皿サンプルチェンジャー
7
バックトンネル
4
5ポジションラック、6個
4
Table of Contents
1 Introduction 3
1.1 Further documents and information................................................................... 3
1.2 Explanation of conventions and symbols used ................................................... 3
1.3 Acronyms and Abbreviations ............................................................................ 3
1.4 Compliance information................................................................................... 3
2 Safety Information 4
2.1 Definitions of signal words and warning symbols ............................................... 4
2.2 Product-specific safety notes ............................................................................ 4
3 Design and Function 6
3.1 Function description ........................................................................................ 6
3.2 Overview........................................................................................................ 6
3.3 Components description .................................................................................. 7
4 Installation and Putting into Operation 9
4.1 Selecting the location ...................................................................................... 9
4.2 Scope of delivery ............................................................................................ 10
4.3 Assembling the sample changer ....................................................................... 10
4.4 Adjusting the sample changer........................................................................... 10
5 Operation 11
5.1 Accessing the weighing chamber...................................................................... 11
5.2 Loading the racks with sample vessels.............................................................. 11
5.3 Using other weighing methods.......................................................................... 12
6 Maintenance 12
6.1 Cleaning ........................................................................................................ 12
6.1.1 Cleaning the weighing pan and drip tray ............................................ 13
6.1.2 Cleaning the tunnel, racks, and rings................................................. 13
7 Troubleshooting 13
7.1 Error symptoms .............................................................................................. 14
8 Technical Data 14
8.1 General data .................................................................................................. 14
9 Disposal 14
1QS3 Sample Changer
en
2 QS3 Sample Changer
1 Introduction
1.1 Further documents and information
This document is available in other languages online.
u www.mt.com/XPR-automatic
Search for software downloads u www.mt.com/labweighing-software-download
Search for documents u www.mt.com/library
For further questions, please contact your authorized METTLER TOLEDO dealer or service representative.
u www.mt.com/contact
1.2 Explanation of conventions and symbols used
Conventions and symbols
Key and/or button designations and display texts are shown in graphic or bold text, e.g.,
, Edit.
Note
For useful information about the product.
Refers to an external document.
Elements of instructions
In this manual, step-by-step instructions are presented as follows. The action steps are numbered and can
contain prerequisites, intermediate results and results, as shown in the example. Sequences with less than two
steps are not numbered.
Prerequisites that must be fulfilled before the individual steps can be executed.
1 Step 1
Intermediate result
2 Step 2
Result
1.3 Acronyms and Abbreviations
Original term Explanation
EMC Electromagnetic Compatibility
FCC Federal Communications Commission
LPS Limited Power Source
POM Polyoxymethylene
RFID Radio-frequency identification
RM Reference Manual
sd Standard deviation
SELV Safety Extra Low Voltage
SOP Standard Operating Procedure
UM User Manual
USB Universal Serial Bus
1.4 Compliance information
National approval documents, e.g., the FCC Supplier Declaration of Conformity, are available online and/or
included in the packaging.
u http://www.mt.com/ComplianceSearch
en
3QS3 Sample Changer
For further information, consult the Reference Manual (RM).
u www.mt.com/QS3-RM
2 Safety Information
Two documents named "User Manual" and "Reference Manual" are available for this instrument.
The User Manual is printed and delivered with the instrument.
The electronic Reference Manual contains a full description of the instrument and its use.
Keep both documents for future reference.
Include both documents if you transfer the instrument to other parties.
Only use the instrument according to the User Manual and the Reference Manual. If you do not use the
instrument according to these documents or if the instrument is modified, the safety of the instrument may be
impaired and Mettler-Toledo GmbH assumes no liability.
2.1 Definitions of signal words and warning symbols
Safety notes contain important information on safety issues. Ignoring the safety notes may lead to personal
injury, damage to the instrument, malfunctions and false results. Safety notes are marked with the following
signal words and warning symbols:
Signal words
DANGER
A hazardous situation with high risk, resulting in death or severe injury if not avoided.
WARNING
A hazardous situation with medium risk, possibly resulting in death or severe injury if
not avoided.
CAUTION
A hazardous situation with low risk, resulting in minor or moderate injury if not
avoided.
NOTICE
A hazardous situation with low risk, resulting in damage to the instrument, other
material damage, malfunctions and erroneous results, or loss of data.
Warning symbols
General hazard Notice
2.2 Product-specific safety notes
Intended use
This dosing system is designed to be used in analytical laboratories by trained staff. The dosing system is
intended for weighing and dosing powder or liquid samples.
Any other type of use and operation beyond the limits of use stated by Mettler-Toledo GmbH without consent
from Mettler-Toledo GmbH is considered as not intended.
Responsibilities of the instrument owner
The instrument owner is the person holding the legal title to the instrument and who uses the instrument or
authorizes any person to use it, or the person who is deemed by law to be the operator of the instrument. The
instrument owner is responsible for the safety of all users of the instrument and third parties.
Mettler-Toledo GmbH assumes that the instrument owner trains users to safely use the instrument in their
workplace and deal with potential hazards. Mettler-Toledo GmbH assumes that the instrument owner provides
the necessary protective gear.
4 QS3 Sample Changer
Protective equipment
Chemical-resistant gloves Goggles
Lab coat
Safety notes
WARNING
Death or serious injury due to electric shock
Contact with parts that carry a live current can lead to death or injury.
1 Only use the METTLER TOLEDO power cable and AC/DC adapter designed for your
instrument.
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 the power plug for damage and replace them if damaged.
WARNING
Injury and/or damage due to hazardous substances
Chemical, biological or radioactive hazards can be associated with the substances processed by
the instrument. During dosing procedures, small amounts of the dosed substance may become
airborne and penetrate the instrument or contaminate its surroundings.
The substance characteristics and related hazards is the full responsibility of the instrument
owner.
1 Be aware of possible hazards associated with the substance and take adequate safety
measures, e.g., those stated on the safety data sheet provided by the manufacturer.
2 Make sure that every instrument part in contact with the substance will not get altered or
damaged by the substance.
WARNING
Injury and/or damage due to reacting, flammable, or explosive substances
During the dosing procedure, substances could be combined and cause an exothermic reaction
or explosion. This includes powders, liquids, and gases.
The sample characteristics and related hazards is the full responsibility of the instrument owner.
1 Be aware of possible hazards associated with reacting, flammable, or explosive substances.
2 Ensure a working temperature low enough to prevent the formation of flames or an
explosion.
CAUTION
Injury due to moving parts
Do not reach into the working area while parts of the instrument are moving.
en
5QS3 Sample Changer
CAUTION
Injury due to sharp objects or broken glass
Instrument components, e.g., glass, can break and lead to injuries.
Always proceed with focus and care.
NOTICE
Damage to the instrument or malfunction due to the use of unsuitable parts
Only use parts from METTLER TOLEDO that are intended to be used with your instrument.
NOTICE
Damage to the instrument
The instrument contains no user-serviceable parts.
1 Do not open the instrument.
2 In the event of problems, please contact a METTLER TOLEDO representative.
NOTICE
Damage to the instrument due to inappropriate cleaning methods
If liquid enters the housing, it can damage the instrument. The surface of the instrument can be
damaged by certain cleaning agents, solvents, or abrasives.
1 Do not spray or pour liquid on the instrument.
2 Only use the cleaning agents specified in the Reference Manual (RM) of the instrument or the
guide "8 Steps to a Clean Balance".
3 Only use a lightly moistened, lint-free cloth or a tissue to clean the instrument.
4 Wipe off any spills immediately.
3 Design and Function
3.1 Function description
The QS3 sample changer can be used in conjunction with the Q3 dosing module and can be installed on any
XPR analytical balance. It contains 30 dosing positions (15 when used with sample vessels of diameter
larger than 31.5mm), and therefore provides increased throughput of your dosing activities. The sample
changer can be used to dose liquids as well as powders. The dosing positions are covered by a tunnel draft
shield with two handles, on the right and left side of the weighing chamber. The top door of the balance is
replaced by a top panel especially designed to reduce the influence of air drafts on the weighing results.
Various adapter are available to accommodate a high variety of sample vessels. The vessels with adapters are
placed on the racks, which are in turn installed on the rotating drive ring. Each dosing position is numbered for
easy traceability. When dosing starts, the drive ring rotates and the dosing positions are brought one-by-one
over the weighing pan for dosing.
Simple weighings, adjustments, and tests can still be performed when the sample changer is installed. To this
purpose, a weighing pan cover and a weighing basket are provided with the instrument.
3.2 Overview
See the section "Overview" (graphics and legend) at the very beginning of this manual.
6 QS3 Sample Changer
3.3 Components description
Weighing pan and rail
A rail is fixed to the base ring. All adapters and sample
vessels slide on this rail as the drive ring rotates. The rail has
one gap above the weighing pan. When a sample vessel
reaches this position, its weight hangs on the weighing pan,
allowing weighing/dosing.
Drive ring
The drive ring is the rotating component of the sample
changer. It contains six elongated slots to fit six racks, each
with five dosing positions. The drive ring also presents a
single round hole, the Home position, where simple
weighing, adjustments, and tests can be performed. When
the Home position is not used for weighing, cover the hole
using the Home position cover.
The rotation of the drive ring is provided by a motor and a
driving wheel, located at the rear of the sample changer.
Racks for sample vessels
The racks are used to hold the adapters (each containing a
sample vessel). Up to six racks can fit on the sample
changer, each with five dosing positions. Each position is
numbered to allow dosing traceability.
en
7QS3 Sample Changer
Home position cover
The Home position cover is designed to avoid unwanted
powder on the weighing pan. Whenever possible, cover the
hole of the Home position with the Home position cover.
Weighing pan cover
When performing a simple weighing, adjustment, or test, you
can use the weighing pan cover in the Home position.
If the drive ring rotates while the weighing pan cover or the
weighing basket is installed, the sample changer or the load
cell could be damaged. Always remove the weighing pan
cover or the weighing basket as soon as the operation is
completed. Place back the Home position cover.
Weighing basket
When using small weights that need to be positioned
precisely in the middle of the weighing pan, use the weighing
basket in the Home position.
If the drive ring rotates while the weighing pan cover or the
weighing basket is installed, the sample changer or the load
cell could be damaged. Always remove the weighing pan
cover or the weighing basket as soon as the operation is
completed. Place back the Home position cover.
8 QS3 Sample Changer
Tunnel
To minimize the influence of air draft on the weighing, a
tunnel is enclosing the weighing chamber and the drive ring
holding the racks and sample vessels. The racks can be
accessed by simply sliding tunnel on the right or left side of
the weighing chamber.
Top panel
The top panel of the QS3 sample changer is designed to
minimize the air draft in the weighing chamber.
4 Installation and Putting into Operation
This instrument must be installed by a METTLER TOLEDO service technician.
The QS3 sample changer is compatible with all XPR analytical balances with tall draft shield.
4.1 Selecting the location
A balance is a sensitive precision instrument. The location where it is placed will have a profound effect on the
accuracy of the weighing results.
Requirements of the location
Place indoors on stable
table
Ensure sufficient spacing Level the instrument Provide adequate lighting
en
9QS3 Sample Changer
Avoid direct sunlight Avoid vibrations Avoid strong drafts Avoid temperature fluctu-
ations
Sufficient spacing for balances: > 15 cm all around the instrument
Take into account the environmental conditions. See "Technical Data".
4.2 Scope of delivery
QS3 sample changer
Base ring with drive unit and slider rails
Position pins, 2 pcs
Base plate
Sealing insert for side doors, 2 pcs
Sealing insert for partition panel
USB cable A–B
Drive ring with numbered positions
Rack with numbered positions, 6 pcs
Top panel for sample changer
Tunnel, 3 pcs
Drip tray
Weighing pan
Weighing pan cover
Weighing basket
Home position cover
Reference Manual
4.3 Assembling the sample changer
This instrument must be installed by a METTLER TOLEDO service technician.
For operation and maintenance, some parts of the sample changer can easily be disassembled, such as the
tunnel, racks, and weighing pan.
See also
Loading the racks with sample vessels Page11
Cleaning Page12
4.4 Adjusting the sample changer
Adjusting the alignment – front to back
The alignment of the sample changer (front to back) is adjusted by the METTLER TOLEDO technician during
installation.
Adjusting the alignment – left to right
Before dosing, the lateral position of the sample changer must be adjusted such that the center of the sample
vessel opening is aligned with the tip of the dosing head. Use the user interface of the balance.
For further information, consult the Reference Manual (RM) of your XPR balance.
u www.mt.com/XPR-analytical-RM
10 QS3 Sample Changer
5 Operation
For further information, consult the Reference Manual (RM) of your XPR balance.
u www.mt.com/XPR-analytical-RM
5.1 Accessing the weighing chamber
To access the weighing chamber, use the handle of the left or
right tunnel to slide it towards the left or right, respectively.
5.2 Loading the racks with sample vessels
Each numbered position on the racks can be used for dosing. Use the appropriate adapter for your sample
vessel to ensure stability. Do not use sample vessels without adapters. Do not leave empty adapters on the
racks.
1
2
1 Use the handle to open the right or left side tunnel (1).
2 Remove the rack (2) accessible through the tunnel
opening.
3 Unload the sample vessels from the rack, if applicable.
4 Load the rack with up to five sample vessels and
adapters (if applicable).
Note
For sample vessels of diameter larger than 31.5mm, fill
only every second position of the rack.
5 Install the rack at the right position on the drive ring.
Note
To properly identify the sample vessels on the terminal, make sure that the numbering on the racks corre-
sponds to the numbering on the drive ring.
Note
For sample vessels of diameter larger than 31.5mm, lift the adapter from the neighboring rack while
loading the racks on the drive ring, if necessary.
6 Make sure that the rack is leveled.
7 Use the user interface to move the drive ring toward the left or right.
8 Repeat steps 2 to 7 until all the desired racks are installed in the sample changer.
Note
If a sample position contains no sample vessel, the dosing sequence will skip this position and move to
the next sample vessel.
For further information, consult the Reference Manual (RM) of your XPR balance.
u www.mt.com/XPR-analytical-RM
en
11QS3 Sample Changer
5.3 Using other weighing methods
NOTICE
Damage to the instrument
The pin under the weighing pan cover and the weighing basket is inserted in the weighing pan
during use. If the drive ring moves while the weighing pan cover or the weighing basket is
installed, the sample changer or the balance can get damaged.
1 Remove the weighing pan cover or the weighing basket as soon as the weighing, test, or
adjustment is complete.
2 Always check that the Home position cover is in place before moving the sample changer's
position.
The sample changer is most often used with automated weighing/dosing. However, other weighing methods,
test, and adjustments can still be performed with the balance.
1 Move the dosing module to its uppermost position.
2 Move the sample changer to the Home position.
3 Remove the Home position cover.
4
WARNING: Damage to the instrument. Do not leave the weighing pan cover or the weighing basket
on the sample changer while not in use.
Install the weighing pan cover or the weighing basket.
5 You are free to use manual methods, tests, and adjustments.
6 Remove the weighing pan cover or the weighing basket.
7 Install the Home position cover.
For further information, consult the Reference Manual (RM) of your XPR balance.
u www.mt.com/XPR-analytical-RM
6 Maintenance
The appropriate maintenance interval depends on your standard operating procedure (SOP).
Please contact your METTLER TOLEDO representative for details about the available service options. Regular
servicing by an authorized service technician ensures constant accuracy for years to come and prolongs the
service life of your instrument.
6.1 Cleaning
NOTICE
Damage to the instrument due to inappropriate cleaning methods
If liquid enters the housing, it can damage the instrument. The surface of the instrument can be
damaged by certain cleaning agents, solvents, or abrasives.
1 Do not spray or pour liquid on the instrument.
2 Only use the cleaning agents specified in the Reference Manual (RM) of the instrument or the
guide "8 Steps to a Clean Balance".
3 Only use a lightly moistened, lint-free cloth or a tissue to clean the instrument.
4 Wipe off any spills immediately.
For further information on cleaning a balance, consult "8 Steps to a Clean Balance".
12 QS3 Sample Changer
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