Correct Use - IKA MIDI MR 1 digital Mode D'emploi

appropriate safety measures must be applied, e.g. work-
ing under a fume hood.
• To avoid body injury and property damage, observe the
relevant safety and accident prevention measures when
processing hazardous materials.
• The device may heat up when in use.
• Do not move or transport the device when it is operating
or connected to the power supply.
• Safe operation is guaranteed only with the use of original
IKA accessories.
• Always disconnect the plug before attaching accessories.
• The device can only be disconnected from the mains sup-
ply by pulling out the mains plug or the connector plug.
• The device can only be opened by technical experts, even
during repair. The device must be unplugged from the
power supply before opening. Live parts inside the device
may still be live for some time after unplugging from the
power supply.
Effects of the magnetic field
NOTICE
have to be taken into account
(e.g. data storage media, cardiac
pacemakers ...).
• The working plate can heat up due to the action of the
drive magnets at high motor speeds.
• The centre of gravity of the assembly must lie within the
surface on which it is set up.
• It may be possible for wear debris from rotating accessory
parts to reach the material being processed.
• When using PTFE-coated magnetic bars, the following
has to be noted: Chemical reactions of PTFE occur in con-
tact with molten or solute alkali metals and alkaline earth
metals, as well as with fine powders of metals in groups 2
and 3 of the periodic system at temperatures above 300
°C - 400 °C. Only elementary fluorine, chlorotrifluoride
and alkali metals attack it; halogenated hydrocarbons
have a reversible swelling effect.
(Source: Römpps Chemie-Lexikon and "Ulmann", Volume 19)
For protection of the user:
Wear your personal protective
WARNING
equipment in accordance with
the hazard category of the media
to be processed. There may be a risk from:
- splashing and evaporation of liquids
- ejection of parts
- release of toxic or combustible gases.
Only process media that will not
DANGER
react dangerously to the extra
energy produced through pro-
cessing. This also applies to any extra energy produced in
other ways, e.g. through light irradiation.
Process pathogenic materials only
DANGER
in closed vessels under a suitable
fume hood. Please contact IKA if
you have any questions.
Beware of hazards due to:
WARNING
- flammable materials
- incorrect container size
- overfilling of media
- unsafe condition of container.
For protection of the device and accessories:
• Set up the device in a spacious area on an even, stable,
clean, non-slip, dry and fireproof surface.
• The voltage stated on the type plate must correspond to
the mains voltage.
• Removable parts must be refitted to the device to prevent
the infiltration of foreign objects, liquids etc..
• Protect the device and accessories from bump and impact.
• Do not cover the device, even partially e.g. with metallic
plates or film. This may result in overheating.
Performing trials:
Reduce the speed if:
NOTICE
- the medium splashes out of the vessel
- the device is not running smoothly
- dynamic forces start to cause the device and/or the ves-
sels placed on it to move around.
• Make certain that the device is set at the lowest speed
(left hand position) before commissioning; otherwise, the
device will start to run at the speed set in last operation.
Gradually increase the speed.
• After an interruption in the power supply or a mechani-
cal interruption during working process, the device will
restart automatically.
The IKA MIDI MR 1 digital and MAXI MR 1 digital is a
magnetic stirrer without heating function. The devices are
suitable for stirring and mixing liquid substances up to 50
liter (MIDI MR1 digital) and 150 liters (MAXI MR1 digi-
tal). The built-in stirring drive permits the stirring of sub-
stances with the aid of a magnetic stirring bar in the vessel.
The mixing intensity is dependent on the motor speed and
the size of the magnetic bar.
• Use:
- for stirring and mixing liquids.
Intend use: Tabletop device
• Unpacking:
- Please unpack the device carefully.
- In the case of any damage a detailed report must be
sent immediately (post, rail or forwarder).
Check whether the voltage specified on the type plate
matches the mains voltage available.
If above conditions are met, the device is ready for opera-
tion after plugging in the mains plug.
If these conditions are not met, safe operation is not guar-
anteed and the device could be damaged.
Observe the ambient conditions (temperature, humidity,
etc.) listed under "Technical Data".
The device can be operated in two modes, "Continuous
mode" or "Timer mode":
Fig. 3
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Correct use

• Area of use:
Indoor environments similar to that a laboratory of re-
search, teaching, trade or industry area.
The safety of the user cannot be guaranteed:
- if the device is operated with accessories that are not
supplied or recommended by the manufacturer,
- if the device is operated improperly or contrary to the
manufacture's specifications,
- if the device or the printed circuit board are modified by
third parties.
Unpacking
• Delivery scope:
- IKA MIDI MR 1 digital or MAXI MR 1 digital ac-
cording to order
- Magnetic stirring bar
- Mains cable
- USB 2.0 cable A – B
- Operating instructions
- Warranty Card.
Commissioning
Continuous mode:
 To switch the device on, turn the "On/Off" and "Timer"
rotary knob (B, see Fig. 3) clockwise to the "1" position.
The power socket used must be
 The device is now running in "Continuous mode".
earthed (protective earthing).
 To switch the device off, turn the "On/Off" and "Timer"
rotary knob (B) to "0" position.
Timer mode:
 To switch the device on, turn the "On/Off" and "Timer"
rotary knob (B) clockwise after the " " position.
 The running time can be adjusted to any value between
0 and 55 minutes.
 After the selected time period has elapsed, the switch
will automatically return to the "0"position and the de-
vice will remain switched off.
 The time period selected can be adjusted at any time.
Setting the motor speed:
 Set the motor speed by turning the "Speed" rotary knob
(C, see Fig. 3). The motor speed can be set to between
0 to 1000 rpm for MIDI MR 1 digital and 0 to 600 for
MAXI MR1 digital.
C B
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