2mag MIX 4 MS User manual

Operation Manual
English
MIX 4 MS Order No.: 30404
Includes
Quick start
Operation Manual
Technical Documentation
Specifications
Version 5.1 Issue 10/2015 www.2mag.de

© 2mag AG Page 2 of 17 Version: 5.1
Thank you for your confidence shown in us!
Congratulations to the purchase of your new product.
For any enquiries, questions or suggestions please do not hesitate to
contact us at [email protected].
2mag
Main competence of 2mag is based upon mixing, tempering and
measuring/controlling. In these fields we are offering support with our
products to the modern laboratory within the standardized daily business
as well as for the implementation of highly complex processes in the
state-of-the-art research. Due to the fact that 2mag is developing
according to customer’s needs, is manufacturing self-contained and under
permanent quality control and is also selling on-site together with
competent contact persons, we can guaranty our customer an outstanding
quality and product performance.
Contents
A Quick start _________________________________________ 3
1. Overview of your product__________________________________ 3
2. Application fields ________________________________________ 4
2.1 Operator ____________________________________________ 4
2.2 Basic functions _______________________________________ 4
2.3 Product combinations __________________________________ 4
2.4 Application not for the intended use _______________________ 4
2.5 Combinations of vessels ________________________________ 5
2.6 Stirring bars _________________________________________ 6
2.6.1 ASTEROID Stirring Bars _______________________________ 6
2.7 Tips and hints to the topic stirring ________________________ 7
3. Installation _____________________________________________ 8
3.1 Safety advice ________________________________________ 8
3.2 Installation, connection to the magnetic stirrer ______________ 9
4. Operation of the magnetic stirrer MIX 4 MS___________________ 10
4.1 Description operating elements__________________________ 10
4.2 Stirring operation and stirrer control _____________________ 11
4.3 Warning notices: _____________________________________ 13
B Maintenance, Cleaning and Care _______________________ 14
C Service case and customer service _____________________ 15
D Errors ____________________________________________ 16
E Technical details____________________________________ 17

© 2mag AG Page 3 of 17 Version: 5.1
A Quick start
1. Overview of your product
Magnetic stirrer MIX 4 MS
Image 2: 4-position magnetic stirrer MIX 4 MS (without power supply unit 100-240 volts)
Your product contains at despatch:
A modern inductive magnetic stirring system (MIX 4 MS)
consisting of a stainless steel stirring plate with 4 stirring points.
An external power supply unit (100-240V / 48 V) with fixed cable
for connecting the magnetic stirrer and pluggable power cable
(country-specific).

© 2mag AG Page 4 of 17 Version: 5.1
2. Application fields
2.1 Operator
The 100% maintenance- and wear-free magnetic stirrers
MIX 4 MS
are used in the fields of chemistry, medicine, pharmacy, microbiology and
biotechnology.
The operators are generally working in research and development,
production and quality assurance.
2.2 Basic functions
Basic function is stirring of liquids in suitable and chemically resistible
vessels.
The stirrer housing is hermetically closed and therefore easy to clean
under running water.
Please ensure BEFORE you connect the power supply unit again that the
socket is 100% dried!
The maximum ambient temperature is +50°C in air.
2.3 Product combinations
In addition to the use at the conventional laboratory desk our products
have also been tested for the application in
Laminar flow devices
Safety cabinets
Safety cabins
2.4 Application not for the intended use
The magnetic stirrers MIX 4 MS are explicitly not intended for the
application:
Stirring and warming of flammable liquids
Warming of pressure-tight closed and NOT pressure-
resistant vessels or glasses
(e.g. Erlenmeyer flasks, lab flasks)
At general atmosphere or danger of explosion
Using immersed in water or oil baths
Using in incubators (lost heat of the stirrer)
The 2mag is offering special products for the just mentioned application
combinations. More information for this can be found at
http://www.2mag.de or at [email protected]

© 2mag AG Page 5 of 17 Version: 5.1
2.5 Combinations of vessels
Please use round, chemical resistant and where required heat-resistant
vessels made of glass or non-magnetic metal. You can use vessels up to
the maximum size stated in the spreadsheet 1.
The vessels should have a thin, even wall thickness. Flat glass bottoms
(without any curve to the inside) and smooth surfaces will improve the
operating characteristic of the magnetic stirring bar. Uneven surfaces
would reduce the stirring power and would cause reaming up of the
stirring bar’s gliding surface.
In case you intend to stir large amount of liquids, please chose such
stirring flasks that have a comparatively small diameter and thin bottom.
The magnetic stirring bar can then be centred better.
Magnetic Stirrer
Stirring vessels
Nominal content
Max. amount
MIX 4 MS
Erlenmeyer flasks
und lab flasks
beaker glass(high
design)
25 ml
50/100 ml
250/500 ml
1000 ml
2000 ml
3000 ml
25 ml
50 ml
100/250 ml
600/1000 ml
3000 ml
4
4
4
4
4
2
4
4
4
4
2
Spreadsheet 1: Combination examples for vessels
Please always place the flasks in the magnetic
centre of the magnetic stirrer. This will ensure the
optimum stirring effect!

© 2mag AG Page 6 of 17 Version: 5.1
Do never use any pressure-tight closed flasks.
RISK OF BURSTING!
Do only use temperature-resistant vessels.
Be careful with plastic flasks!
2.6 Stirring bars
In general, all stirring bars matching the length and diameter can be used.
But we recommend using the commercial stirring bars with Samarium
Cobalt magnetic core (SmCo). By using this highly energetic magnetic
material the maximum stirring power of the magnetic stirrer can be
achieved, especially when mixing viscose media.
2.6.1 ASTEROID Stirring Bars
We recommend using 2mag –ASTEROID stirring bars to increase the
stirring performance at enhanced requirements.
ASTEROID stirring bars a newly developed, high-effective and ideal for:
large mixing volumes
viscous media
stirring over wide distances
at disadvantageous vessel bottoms.
2mag ASTEROID stirring bars transmit more than 4x higher torque.
Therefore the bars creating an unbeatable increased mixing effect in
comparison to conventional stirring bars. The high energetic and long-
term stable magnetic field does not have any demagnetization effect.
The concave design is made for a minimum of bearing surface and reliable
rotation. Significantly higher rotation speed reachable! 300% less PTFE
abrasion than comparable round shape stirring bars. The triangular shape
raises the powerful shear force and increases the mixing effect at lower
rotation speed.
The high quality PTFE cover is even and sealing the magnet, FDA-conform
and steam sterilizable at 121°C.

© 2mag AG Page 7 of 17 Version: 5.1
2.7 Tips and hints to the topic stirring
The mixing flasks should be filled max. up to the middle (high speed
range) resp. up to ¾ (low speed range).
Place one magnetic stirring bar in each stirring flask.
Place the stirring flasks right in the centre of the stirring point on the
Stirring Hotplate resp. in one borehole of the Stirring Drybath.
In case the magnetic stirring bar turns in an unsteady or jerky
way or bounces:
The interaction between the alternating magnetic field and the magnetic
stirring bar is too high.
Increase the speed or
Use a smaller magnetic stirring bar or
Decrease the stirring power.
In case the magnetic stirring bar will not be centred or leaves the
centre permanently:
The interaction between the alternating magnetic field and the magnetic
stirring bar is too low.
Or the stirring bar has a bottom that is uneven or too thick-walled.
Move the flask slightly back and fro and centre it again onto the stirring
point of the stirrer surface.
Reduce the speed or use a longer magnetic stirring bar or one with a
larger diameter or
Use a smaller flask with a thin-walled, even bottom or
Reduce the filling amount in the flasks or
Increase the stirring speed.
In case the stirring activity is too weak:
Use commercial magnetic stirring bars with SamariumCobalt-core.
Use a longer stirring bar or a stirring flask with smaller diameter.
We recommend using 2mag –ASTEROID stirring
bars to increase the stirring performance.

© 2mag AG Page 8 of 17 Version: 5.1
3. Installation
3.1 Safety advice
Please ensure the following basic conditions prior to installation:
The wear-free inductive drive works with magnetism.
Cardiac pacemakers, data storage mediums,
magnetic cards and other devices, which can be
affected by magnetic fields, have to be kept away from
the fields of the stirring unit as well as from the stirring
bars.
The device must not be used in explosive rooms.
The power supply unit and the magnetic stirrer must not
be dipped in water or any cleaning solutions.
Your supply voltage has to comply with the label of the
power supply unit.
To increase the operation safety, the power supply unit
should be placed apart from chemical materials and
reactions as well as away from thermal influences.
For special requirements please contact [email protected].
ATTENTION!
The power supply unit has to be
disconnected, BEFORE you connect or
disconnect the unit plug.
Always disconnect the power supply unit
first before handling the connection cables.

© 2mag AG Page 9 of 17 Version: 5.1
3.2Installation, connection to the magnetic stirrer
Step by step instruction (please also see image 3)
Take the smaller wire (2) of the power supply unit (1) and
connect the round plug (3) with the socket (4) at the backside of
the magnetic stirrer (7).
Connect the power cable (5) to the power supply unit (1) and
afterwards to the power plug.
The magnetic stirrer is now connected to the power supply unit
and ready for operation.
Image 3: Installation, rear side of the magnetic stirrer MIX 1
Description functional elements of control unit - backside
1 Power supply unit (100-240 volts)
2 Low voltage cable between power supply unit and magnetic stirrer
3 Low voltage plug
4 Low voltage socket at magnetic stirrer
5 Power cord
7 Magnetic stirrer
3
5
1
2
4
7

© 2mag AG Page 10 of 17 Version: 5.1
4. Operation of the magnetic stirrer MIX 4 MS
Image 4: Operating elements, magnetic stirrer MIX 4 MS
Image 5: Close-up –operation elements, magnetic stirrer MIX 4 MS
4.1 Description operating elements
7 Magnetic stirrer MIX 4 MS
Stirrer control
8 ON/OFF key for magnetic stirrer
9 MODE-key for selection (addressing) of stirring position 1-4
10 Display for speed and indication of addressed stirring position
11 MINUS-key (-) for reduction of stirrer speed
12 PLUS-key (+) for increase of the stirrer speed
7
8
9
11
12
10
8
9
11
12
10

© 2mag AG Page 11 of 17 Version: 5.1
Operating of the magnetic stirrer
After the cables have been installed correctly according to Installation,
connection to the magnetic stirrer, the magnetic stirrer
MIX 4 MS will be ready for operation.
4.2 Stirring operation and stirrer control
Turning On and Off
Please press the ON/OFF-key (8) once. The magnetic stirrer will be
switched on by that. The current stirring speed will be shown in the
display (10).
By pressing the ON/OFF-key (8) once more, the magnetic stirrer will be
switched off again. The display indicator (10) expires.
SoftStart (always active –can not be switched off)
After the magnetic stirrer was switched on, the stirring bars in the flasks
will first be caught, afterwards centred in the flask and then –to increase
the operating safety –be smoothly accelerated to the set speed
accurately.
Stirrer speed adjustment (basics)
The speed of the magnetic stirrer can be adjusted by pressing the MINUS-
(11) resp. the PLUS-key (12).
The adjusted speed will be shown in the display (10) when the magnetic
stirrer is switched on. The speed range can be adjusted between 100 and
2000 rpm in steps by 10.
By constantly pressing the MINUS- resp. the PLUS-keys, an accelerated
adjustment of the speed can be achieved.
Addressing of stirring positions
The stirring positions 1/2/3/4 can be operated individually as well as all
positions can be operated synchronous and simultaneously.
The individual control of the stirring positions 1-4 and “ALL” can be
addressed by pressing the MODE-key (9) repeatedly.
Indication points –display
The display is based on 4x LED-segments with are showing the figures
(0-9). At the segment corner down right is positioned an additional LED
dot.
The sum of lighting dots is showing the number of the actual addressed
stirring position. The speed of the addressed stirring position can be
controlled by the MINUS- (11) resp. the PLUS-key (12) as well as the
ON/OFF-function by the ON/OFF-key (8).

© 2mag AG Page 12 of 17 Version: 5.1
Example:
Two dots are lighting stirring position 2 is addressed and can be control
by MINUS- (11) resp. the PLUS-key (12) as well as the ON/OFF-key (8).
Each stirring position can be set the stirring speed from 100-2000 rpm in
steps by 10 and ON/OFF individually and separately.
Status ON –stirring positions
If the indication dots are lighting with a figure in the range 100-2000 rpm
the addressed stirrer is switched on and working with the displayed speed.
If the indication dots are lighting without any figure the addressed stirrer
is switched off.
Display, Magnetic Stirrer
The display (10) provides as described above a description of:
Current stirring speed (always with switched on magnetic stirrer)
Indication with help of the indication points which stirring position is
addressed.
To check, whether the magnetic stirrer is switched on. The display
will not be illuminated in case the stirrer is switched off.
Furthermore following status can be shown:
„.“1 indication dot is lighting - stirring position 1 can be controlled
by keys
„..“2 indication dots are lighting - stirring position 2 can be controlled
by keys
„…“3 indication dots are lighting - stirring position 3 can be controlled
by keys
„….“4 indication dots are lighting: - stirring position 4 can be
controlled by keys
„_“ (under score) of first segment is lighting: synchronous operation –
all stirring positions 1-4 can be controlled at one time by keys.
The wear-free inductive drive works with magnetism.
Cardiac pacemakers, data storage mediums,
magnetic cards and other devices, which can be
affected by magnetic fields, have to be kept away from
the fields of the stirring unit as well as from the stirring
bars.

© 2mag AG Page 13 of 17 Version: 5.1
4.3 Warning notices:
The magnetic stirrers MIX 4 MS is not suitable for using
in water baths, incubators, ovens and humid
atmosphere.

© 2mag AG Page 14 of 17 Version: 5.1
B Maintenance, Cleaning and Care
Do not use any cleaning agent or cleaning rag that is
based on chlorine with metallic components or
ammoniac.
These agents may harm the surface.
The magnetic stirrer must not be dipped in water or any
cleaning solutions.
2mag devices are generally maintenance-free.
Due to their construction the 2mag devices are very robust and designed
for the professional daily use.
We recommend cleaning the devices’ surfaces with e.g. cleaning agents
containing tensides or isopropyl alcohol regularly.
BEFORE cleaning the surfaces, switch off the device with the power
switch and pull out the power cable afterwards.

© 2mag AG Page 15 of 17 Version: 5.1
C Service case and customer service
During service, the device may only be opened by
an authorized customer service.
In case of any defect on the device, please make sure to contact us first.
We will be ready to offer help quickly and straightforward.
2mag AG
Schragenhofstr. 35 J
DE-80992 Muenchen
GERMANY
Fon: [phone]
Fax: [phone]
E-Mail: [email protected]
Web: www.2mag.de
Warranty:
Due to their construction, the 2mag devices are very robust and designed
for the professional daily use.
The magnetic drive works without any mechanically moved parts as e.g.
belts, bearings or motors. Therefore a maximum of reliability within daily
use is achieved.
Should in any case, despite our strict quality control, a system part not
work without any fault, it can be repaired or exchanged by our customer
service without any problems.
We guarantee 3 years warranty on all material and manufacturing
defects.

© 2mag AG Page 16 of 17 Version: 5.1
D Errors
The magnetic stirring bar is turning in an unbalanced way:
There is no denying that magnetic stirring bars are aging in the course of
time. This may happen by e.g. sterilizing, usage at high temperatures or
causing stress (dropping down). The magnetism can be decreased by this.
Separate out this stirring bar and exchange it by a new one.
The magnetic stirrer is not ready for operation despite the power
connection has been made:
Please get into contact with us.
In general, we are ready to help you in case of problems.
For any enquiries, questions or suggestions please do not hesitate to
contact us at [email protected]

© 2mag AG Page 17 of 17 Version: 5.1
E Technical details
Magnetic stirrer MIX 4 MS
MIX 4 MS
Order no.
30404
Stirring points
4
Stirring point distance
140 mm
Stirring volume
1 –3,000 ml
Speed range
100 –2,000 rpm
Stirring power (max.)
28 (4x7) watts
Material housing
stainless-steel
Material sealing
PUR
Measurements (WxDxH)
245 x 425 x 38 mm
Weight
approx. 8.9 kg
Permitted operation
conditions
-10 up to +50 °C (at 80% humidity)
Permitted storage
conditions
-40 °C up to +70 °C, 10–95 %, 500-1060 hPa
Protection category
IP 64
Operating voltage
48 VDC
Electrical data
100-240 V / 50-60 Hz / 1.5 A
Accessory Magnetic Stirring Bar ASTEROID 40
Magnetic Stirring Bar ASTEROID 40
Order no.
44040
Shape
triangle, concave
Material
PTFE
Measurement (DxL)
Ø 28 x 40 mm
Weight
ca. 0.06 kg
Image 6: Stirring bar ASTEROID 40
2mag AG Fon: [phone]
Schragenhofstr. 35 J Fax: [phone]
DE-80992 Muenchen E-Mail: [email protected]
GERMANY Web: www.2mag.de

EU-DECLARATION OF CONFORMITY
FOR TECHNICAL DEVICES
(acc. to EU-guideline of the electromagnetic compatibility 2014/30/EU and the low
voltage directive 2014/35/EU)
2mag AG
Schragenhofstraße 35 J
DE-80992 Muenchen
GERMANY
Hereby declares that the product
MIX 4 MS
is conform to the appropriate regulations of the EU-guideline of the electromagnetic
compatibility (EU-guideline 2014/30/EU) as well as the low voltage directive
(2014/35/EU) incl. their changes and the laws for the realization of the guideline into
national law.
The declaration is valid under the following conditions:
The ambient conditions being stated in the operation manuals have to be adhered to.
This mainly applies to the supply with electric energy.
The following norms/standards were chosen to evaluate the finished products with regard
to electromagnetic compatibility:
DIN EN 61000-3-2
DIN EN 61000-3-3
DIN EN 61326-1
DIN EN 60529
The following norms/standards were chosen to evaluate the finished products with regard
to low voltage directive:
DIN EN 61010-1
DIN EN 61010-2-51
Muenchen, 20.10.2015 Signature: __________________________________
Dr. Klaus Kaufmann (CTO)