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11

Remedy:

-  Release the On/Off - switch and remove the grinding container. If fragments of 

the grinding material have become stuck between the grinding tool and the guard 
ring, do not remove them until after you have disconnected the power cord.

- Fill the grinding container with a sufficient amount of pre-reduced grinding 

material.

-  Do not exceed the maximum filling hight in any case.
-  In the case of hard or tough grinding material, reduce the maximum filling hight 

by 50%.

- If the motor circuit breaker has been tripped, you must wait until it switches 

back off.

-  Wherein the triggered circuit breaker (100-115V version) this will be as described 

above with no waiting time is reset.

The motor speed falls sharply or the mill is locked during operation:

Causes:

-  The feed granularity is too coarse, ≥ 10 mm.
-  There is too much feed material in the grinding container.
-  The grinding material is too tough.
- The pulverization tool is being lowered down into the grinding material too 

quickly.

Remedy (motor speed falls):

-  The speed can be kept at a constant level if the grinding tool is moved slowly 

into the grinding material. If the speed drops off, you should not lower the 
tool any further. Instead you should raise it again and try to move the tool 
slowly into the grinding material at the nominal motor speed.

Remedy (locking):

-  Release the On/Off - switch and remove the grinding container. If fragments of the 

grinding material have become stuck between the grinding tool and the guard ring, 
do not remove them until after you have disconnected the power cord.

Eliminating malfunctions:

The mill does not start up:

Causes:

-  Power cord is not plugged into the socket correctly.
-  You did not push the On/Off - switch down far enough.
-  The grinding container is not screwed in up to the stop (when you press the On/

Off - switch the malfunction display lights up).

-  The mill has been heated up by the previous grinding procedure  (the malfunction 

display lights up when you press the On/Off - switch).

-  After disassembling the middle section (for example to clean it) the switch block 

is not completely engaged.

-  Circuit breaker tripped (only 100-115V version).

Remedy:

-  If necessary, check the power supply and the power cord.
-  Push the On/Off - switch down until a „click“ is audible.
-  Reset circuit breaker (only 100-115V version).

If the malfunction display lights up when you push the On/Off - switch:

-  Screw the grinding container up to the stop (a soft „Click“ is audible) and if 

necessary remove any dirt from the threading.

-  Check to make sure the switch block is engaged in place.
-  If the mill has overheated, wait a few minutes for it to cool down.

The motor is locked after the On/Off - switch has been pressed, or the 

mill switches off shortly after it has started.

Causes:

-  Too much grinding material in the grinding container (filling hight exceeded).
-  The feed granularity is too coarse.
-  Motor circuit breaker is tripped because of lock (overload).

Summary of Contents for A11 basic

Page 1: ...Operating instructions EN IKA A11 basic ...

Page 2: ...on Maximale Füllhöhe Maximum filling height Fig 1 Fig 2 IKA A11 basic On Off Fig 3 20 Maximale Füllhöhe Maximum filling height Fig 5 Fig 6 On Off IKA A11 basic 22 9 8 24 14 13 20 19 11 Item Designation 8 Guard ring 9 O ring 11 Beater 13 Hexagonal nut 14 Pressure spring 19 O ring 20 Seal 22 Guide screw 24 Hexagonal nut ...

Page 3: ...3 STEP 2 Unscrew STEP 3 Remove STEP 4 Clean DRY WET Tools 2x 2x 1x STEP 1 Check Cleaning information IKA A 11 basic Note Prevent damage keep clean ...

Page 4: ...to all IKA S versions e g A 11 basic S 001 EN Safety instructions Explication of warning symbols DANGER CAUTION WARNING NOTICE Indicates an imminently hazardous situation which if not avoided will result in death serious injury Indicates a potentially hazardous situation which if not avoided can result in death serious injury Indicates a potentially hazardous situation which if not avoided can res...

Page 5: ...d it in place with both hands Only process samples 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 Beware of the risk of flammable materials Working with the device DANGER Do not use the device in explosive atmospheres it is not EX protected With substances capable of forming ...

Page 6: ...trade or industry 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 Power supply switching off the device The voltage stated on the type plate must ...

Page 7: ...more than 50 capacity The mill must only be used in an upright position in this case must not be agitated or turned on its head Materials that are not listed above should only be reduced in the A 11 basic after confirmation from IKA especially if there is uncertainty about the danger of explosion dust explosion as a result of electrostatic charge NOTICE WARNING Unpacking Delivery scope A 11 basic ...

Page 8: ... grinding beaker Pour liquid nitrogen into the grinding beaker using a suitable Dewar vessel ensuring that the sample is completely covered or swimming in liquid nitrogen Only attach the drive once the nitrogen is completely vaporized otherwise high pressure can build up in the grinding chamber Please note that the mill feed heats up again extremely quickly during crushing it may reach room temper...

Page 9: ...y grinding material that adheres to the guard ring can be swept off on the guard ring into the grinding container with a cleaning brush no wire brushes Always remove any grinding scrap which gets into the interstice before using the appliance again see Maintenance and Cleaning section The grinding tools the grinding container and the rotor shaft may be hot Observe the safety instructions WARNING C...

Page 10: ...does not indicate which of the two possible errors has occurred As a rule if the motor circuit breaker has been engaged an elevated temperature has been detected on the mill housing Temperature and over current protection The A 11 basic mill is protected from overload and or overheating by a combined temperature and over current switch The motor circuit breaker turns itself back off automatically ...

Page 11: ...emove the grinding container If fragments of the grinding material have become stuck between the grinding tool and the guard ring do not remove them until after you have disconnected the power cord Eliminating malfunctions The mill does not start up Causes Power cord is not plugged into the socket correctly You did not push the On Off switch down far enough The grinding container is not screwed in...

Page 12: ...tion area can be cleaned with a cleaning brush If there is a heavy accumulation of dirt the grinding container can be cleaned in a dish washer If grinding dust is found in the middle section the area where pressure spring is located it can be blown out through the opening with compressed air If there is a heavy accumulation of dirt on the guard ring and the middle section can be disassembled as fo...

Page 13: ... matching opening in the middle section For the switch block to engage completely in place the drive section must be pushed into the middle section up to the lower stop While the drive sections is inserted about half way into the middle section the guide screws should be tightened Note The switch block must engage flush in the middle section in the assembled state This should always be checked and...

Page 14: ...ange of granularity What has been said before also applies here for example only 50 80 of the normally filling quantity are reduced more quickly the granularity of the final product is finer the range of granularity is smaller and the heating up of the grinding material is reduced Grinding process As the double beater is already immersed in the mill feed when the grinding beaker is being screwed o...

Page 15: ... beaker A 11 4 250 ml Rotor shaft Beater A 11 1 Cutter A 11 2 Beater A 11 3 Double beater A 11 6 Filling funnel A 11 7 Stainless steel 1 4571 outer shell fluoroplastic ETFE Stainless steel 1 4571 outer shell polycarbonate PC Stainless steel 1 4571 Stainless steel 1 4034 hardness approx 52 HRC Stainless steel 1 4112 hardness approx 55 HRC Stainless steel 1 4112 wolfram carbide coated core hardness ...

Page 16: ...may also send the machine direct to our factory enclosing the delivery invoice and giving reasons for the claim You will be liable for freight costs The warranty does not cover worn out parts nor does it apply to faults resulting from improper use insufficient care or maintenance not carried out in accordance with the instructions in this operating manual ...

Page 17: ...IKA Works Guangzhou Phone 86 20 8222 6771 eMail info ika cn POLAND IKA Poland Sp z o o Phone 48 22 201 99 79 eMail sales poland ika com USA IKA Works Inc Phone 1 910 452 7059 eMail usa ika net KOREA IKA Korea Ltd Phone 82 2 2136 6800 eMail sales lab ika kr BRAZIL IKA Brazil Phone 55 19 3772 9600 eMail sales ika net br VIETNAM IKA Vietnam Company Limited Phone 84 28 38202142 eMail sales lab vietnam...

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