IKA MICROSTAR digital User manual

MICROSTAR digital

Device setup

/// MICROSTAR digital

1Operator panel and display

2Chuck

3Extension arm

4Power socket

5USB interface

6Stirring shaft cap

/// What you should watch out for

Attention! ( )

1110

Safety instructions

/// Explication of warning symbols

Indicates an (extremely) hazardous situation, which,

if not avoided, will result in death, serious injury.

Indicates practices which, if not avoided,

can result in equipment damage.

Indicates a hazardous situation, which, if not avoided,

can result in death, serious injury.

Indicates a potentially hazardous situation,

which, if not avoided, can result in injury.

/// General information

› Read the operating instructions in full before

starting up and follow the safety instructions.

› Keep the operating instructions in a place where it

can be accessed by everyone.

› Ensure that only trained staff work with the device.

› Follow the safety instructions, guidelines, occupational

health and safety and accident prevention regulations.

Danger! ( )

Please pay attention to the dangerous parts of the equipment

in device setup. Beware of the risk of:

› ﬂammable materials

› glass breakage as a result of mechanical stirring power

Caution! ( )

Wear your personal protective equipment in accordance with the hazard

category of the medium to be processed, there is a risk of:

› splashing of liquids

› projectile parts

› body parts, hair, clothing and jewelry getting caught

The device must only be used in a technically perfect condition.

1312

/// Device setup

Danger! ( )

Users must make sure that the standby key of the IKA device can be accessed

immediately, directly and without risk at any time. If installation or positioning

cannot ensure this access at all times, an additional EMERGENCY STOP

switch that can be easily accessed must be installed in the work area.

Warning! ( )

Ensure stable assembly. The vessel used for stirring must be secured.

Use stirring shaft protective equipment!

›Set up the stand in a spacious area on an even, stable,

clean, non-slip, dry and ﬁreproof surface.

›Remove the chuck key from the chuck before turning

on the device.

› Place the power supply outside the working area of the device.

› Avoid knocking and impacting on the lower end of the shaft and

the chuck gear teeth. Even minor, invisible damage can lead to

imbalance and uneven shaft action.

› All screw connections must be properly tightened.

› The high torque developed by the device requires particular care

in the choice of stand, cross sleeve and anti-rotation element for

the agitating vessel.

/// Working with the device

Danger! ( )

› Do not use the device in explosive atmospheres, it is not EX-protected.

› With substances capable of forming an explosive mixture, appropriate safety

measures must be applied, e.g. working 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 is not suitable for hand-held operation.

› Do not touch rotating parts during operation!

Warning! ( )

Pathogenic materials must only be processed in closed vessels under

a suitable fume hood. If you have any questions, please contact IKA

application support.

The operation of a free rotating shaft end is prohibited. Therefore, for

safety reason, only insert through the stirring tool over the upper edge

of housing at standstill.

Caution! ( )

Make certain that the unit is set at the lowest speed before commissioning;

otherwise, the unit will begin running at the speed set in last operation. Gradually

increase the speed. Please observe the max. permitted speed for the stirring

element. Never set higher speed.

Covers or parts that can be removed from the device without tools

must later be reﬁtted to ensure safe operation. This will prevent the

inﬁltration of foreign objects, liquids and other contaminants.

1514

› Imbalance of the output shaft, the chuck and in particular the stirring

tools can lead to uncontrolled resonant vibrational behavior of the device

and the whole assembly. Glass apparatus and stirrer containers can be

damaged or shattered by this. It can cause injury to the operator, also can

damage the rotating stirring tool. In this case exchange the stirring tool

for one without imbalance or remedy the cause of the imbalance. If there

is still imbalance, return it to the dealer or the manufacturer along with a

description of the fault.

› There may be electrostatic activity between the medium and the output

shaft which could cause a direct danger.

› Never operate the device with the stirrer tools rotating freely. Ensure that

parts of the body, hair, jewelry or items of clothing cannot be trapped by

the rotating parts.

› Pay attention when setting the speed to any imbalance of the stirrer tools

and possible spraying of the medium to be stirred.

› Ensure that the stand does not start to move.

› Only process media that will not react dangerously to the extra energy

produced through processing. This also applies to any extra energy

produced in other ways, e.g. through light irradiation.

Reduce the speed if:

› the medium splashes out of the vessel because the speed is too high,

› the device is not running smoothly,

› the device begins to move around because of dynamic forces,

› an error occurs.

/// Accessories

› Protect the device and accessories from bumping and impacting.

› Check the device and accessories beforehand for damage each time

when you use them. Do not use damaged components.

› Safe operation is only guaranteed with the accessories described

in the ”Accessories” section.

› Must disconnect the power before changing stirring element and

ﬁtting allowed accessories.

/// Power supply / Switching off the device

If the device is operated too long in overload or if the ambient

temperature is too high, the device switches off permanently.

› Disconnecting the device from the power outlet only works by removing

the main cord from the socket.

› The device must only be operated with the original power supply unit.

› The power supply comes with interchangeable plug adapters for different

countries so make sure the appropriate adapter is used.

› The outlet for the power supply must be easily accessible.

› After an interruption in the power supply during a stirring process,

the device does not restart automatically.

› The device must only be opened by trained technicians, 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.

/// Disposal

The device must be disposed of in accordance with national regulations.

1716

Unpacking

/// Scope of Delivery

Unpack the device carefully. Any damage should be notiﬁed immediately to

the shipping agent (post oce, railway network or logistics company).

Scope of Delivery

› MICROSTAR digital overhead stirrer

› power supply (with exchangeable adapters)

› extension arm

› hexagonal socket screw

› hexagon socket offset screw key

› shaft protector R 300 (with 2 fasten screws)

› chuck key

› USB cable

› user guide

› warranty card

MICROSTAR control Warranty

++ +

Intended use

/// Basics

Use

› For mixing / stirring liquids from low to medium viscosities

with various stirring tools.

›Stand device (chuck points down)

Range of use (indoor use only)

› Laboratories

› Pharmacies

› Universities

› Schools

The device is suitable for use in all areas (EMC class A and B).

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.

1918

Useful information

/// Stirrer

The stirring device is suitable for continuous operation. The motor current is

limited electronically. The device has an anti-stall and anti-overload system.

If a fault occurs, a safety circuit immediately switches off the motor

permanently. The device starts with the last settings made.

Speed

/// Speed – normal operation

Speed - regulated (no variation in speed):

The speed is monitored and regulated by processor controlled. The target

speed is constantly compared with the actual rotation speed value of the

output shaft and variations corrected. This guarantees a constant speed even

if the viscosity of the substance being stirred changes.

Fluctuations in mains voltage within the permitted tolerance range have no

effect on the quality of regulation and constancy of speed.

The speed is set using the front knob. During normal operations

the speed value on the display corresponds to the speed of the

output shaft in revolutions per minute (rpm).

/// Speed – overload operation

When solid or semi-viscous substances are added, the stirrer can be run for

a brief period at 130% its rated power. When running in the overload range

(for instance if the viscosity has increased at a particular stage of the process)

the speed will reduce to a degree sucient to keep the torque on the stirrer

shaft within the rated torque of the device.

Power supply unit (with exchangeable adapters)

Schematics of device and power supply.

China

(C)

(N)

Australia

(A)

(B)

Europe

(E)

2120

Operator panel and display

/// Operation

rpm

AStandby key

Device switches on / enters standby

(no disconnection from the power supply network).

BDisplay Display the speed value.

CControl knob

(rotating / pressing)

Set the speed by rotating.

Start / stop the stirrer function by pressing.

Overload status 1

The device is already running within the overload range, however, the actual

speed does not match the set speed. This condition is maintained as long as

neither the motor current nor the device temperature exceeds their permissible

limit value. Display symbol: blinking of the target speed.

Overload status 2

The device stop at a load above 130 % of the nominal torque.

Message in the display (see “Error codes” section).

/// Output shaft

Caution! ( )

Please see section “Safety instructions“!

The clamping chuck and output shaft permit clamping IKA recommend stirrer

tools (see section “Permitted IKA Stirrer tools“). The output shaft is designed

as a hollow shaft and the opening on the top side of the housing is closed

with a plastic cover. When the stirrer cover is opened, it is possible for stirring

shaft to be pushed out over the top edge of the housing at standstill, e.g.

during changing container.

For safety reason, the stirrer cover must be pushed back into the opening of

the housing so that it is properly closed. This is the only way to ensure that

working with the unit is safe and that media cannot enter the device.

2322

Assembly

/// Assembling the extension arm to the overhead

stirrer

Stirrer

Extension arm

Hexagonal socket screw

Hexagon socket

offset screw key

Ensure that the extension arm is ﬁtted securely.

Vibration may cause the screw to become loose. It is therefore necessary

for safe use to regularly check that the extension arm is attached securely.

Tighten the hexangular bolt as required.

/// Assembling the overhead stirrer to the stand

Cross sleeve

Extension arm

Stand

Screw bolt

Check that the stirrer is held in position ﬁrmly prior to each use and also at regular

intervals. The position of the stirrer must only be adjusted when the equipment is

stationary and the power supply is disconnected.

/// Assembling the stirring element using the chuck

Chuck

Stirring element

Chuck key

Warning! ( )

The stirring element must only be changed when the equipment is stationary

and the power supply is disconnected.

2524

/// Assembling the stirring shaft protector

Stirrer

Screw

R 300

/// Securing the mixing vessel to the stand

Clamping bolt

Stand

Vessel

Clamping band

Strap clamp

Commissioning

/// Start-up

Secure the device to a stable stand with a cross sleeve.

The stirring vessel must always be securely ﬁxed for safety reasons. You must also ensure

that the mounting device (stand) is set up in such a way that it is not liable to topple and

does not start to move during the stirring procedure.

If these conditions have been met, the machine is ready for operation when the mains

plug is plugged in. If these conditions are not met, safe operation is not guaranteed and

the machine could be damaged.

Observe the ambient conditions (temperature, humidity, etc.) listed under “Technical Data”.

The AC adapter is suitable for 100 VAC to 240 VAC.

The exchangeable adapter for the relevant country must be attached before the AC

adapter is plugged into the mains socket.

Switching on/off

1. After connecting the power to the device or touching the standby key (A) more than 1

second, the device is switched on. Following screens appear:

2. After that, the following screen appears automatically.

Software version

Self test screen

Device identiﬁcation

3. Then, the device is ready for operation.

4. After switching off the device by touching the standby key (A) more than 1 second,

following screen appears:

Last speed setting

Standby LED

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