Related Manuals for Thermo Scientific Variomag MAXI DIRECT
Summary of Contents for Thermo Scientific Variomag MAXI DIRECT
- Page 1 Magnetic Stirrer Operating Manual 50108213 Issue 02.2007 MAXI DIRECT POLY 15 MULTIPOINT 6/15...
- Page 2 © 2007 Thermo Fisher Scientific Inc. All rights reserved. DURAN® is a trademark of SCHOTT AG. All other trademarks are the property of Thermo Fisher Scientific Inc and its subsidiaries. Specifications, terms and pricing are subject to change. Not all products are available in all countries. Please consult your local sales representative for details.
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Page 3: Table Of Contents
Incorrect use Pictographs Safety considerations Equipment description Function Startup procedure Stirring operation 5.1 Stirring vessels 5.2 Magnetic stirring bars 5.3 Recommended rotation speed ranges 5.4 Stirring 5.4.1 Tips on stirring Maintenance and cleaning Troubleshooting Technical specifications Warranty 50108213_02.2007 Thermo Scientific... -
Page 4: Start/Stop Key
Figure 1: The MAXI DIRECT magnetic stirrer with bench-top power supply unit. 1 START/STOP key 7 Digital display 8 Secondary power cable 9 Power supply unit 5 Magnetic stirrer 10 Mains cable 6 Stirring points Figure 2: The POLY 15 magnetic stirrer with bench-top power supply unit Thermo Scientific 50108213_02.2007... -
Page 5: Mode Key
6 Stirring points 7 Digital display 8 Secondary power cable 4 MODE key 9 Power supply unit 5 Magnetic stirrer 10 Mains cable Figure 3: The MULTIPOINT 6 / 15 magnetic stirrer with bench-top power supply unit 50108213_02.2007 Thermo Scientific... - Page 6 This sign refers to hazardous situations. Hazards to human life are indicated by "LIFE HAZARD". CAUTION This sign indicates danger to equipment and machinery. INFORMATION This sign indicates easier working practices. Indicates an operating step. Indicates alternatives. Thermo Scientific 50108213_02.2007...
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Page 7: Safety Considerations
The equipment must not be operated in hazardous locations and in a water bath. CAUTION Do not place hot stirring vessels on top of the magnetic stirrer (5). Maximum temperature: +56 °C. CAUTION Permitted ambient conditions: Cf. Technical specifications. 50108213_02.2007 Thermo Scientific... - Page 8 This may cause the magnetic stirring bar to wander away from the turning center and carry out periodic oscillations. Avoid this rotation speed setting when the problem occurs. Quickly travel through this problem range when adjusting the rotation speed. Thermo Scientific 50108213_02.2007...
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Page 9: Equipment Description
MODE key (4). The desired power or rotation speed can be selected with the key (2) and the key (3). After selecting the stirring power, the digital display (7) switches automatically to the rotation speed display after approximately 5 seconds. 50108213_02.2007 Thermo Scientific... -
Page 10: Function
On the POLY 15 and MULTIPOINT 15, however, the magnetic stirring bars will rotate in opposite directions. The Memory function saves the setting last at switching off the device, even if disconnected from mains supply for longer periods of time. Thermo Scientific 50108213_02.2007... -
Page 11: Startup Procedure
(9). Connect the mains plug (10) to the mains socket. If a germ-free environment is required, accommodate the power supply unit (9) outside the sterile area. The magnetic stirrer (5) is now ready for operation. 50108213_02.2007 Thermo Scientific... -
Page 12: Stirring Operation
1000 ml 25 ml 50 ml Beakers (tall in 100/250 ml shape) 600/1000 ml 2000 ml* Centrifuging tubes Test tubes 15** Cultivating tubes Distance between stirring points (mm) *) restricted range of application **) test tube rack required Thermo Scientific 50108213_02.2007... - Page 13 This may cause the magnetic stirring bar to wander away from the turning center and carry out periodic oscillations. Avoid this rotation speed setting when the problem occurs. Quickly travel through this problem range when adjusting the rotation speed. 50108213_02.2007 Thermo Scientific...
- Page 14 Any risk of demagnetization by external magnetic fields is completely eliminated. All KOMET series stirring bars can be readily recognized by their two conical ends. Figure 5: KOMET stirring bar Side view (left) and cross-section through central portion (right) Figure 6: KOMET stirring bar with glide ring Thermo Scientific 50108213_02.2007...
- Page 15 The digital display (7) shows the currently set rotation speed. You can set the speed in increments of 10 rpm. Selectable speed range: MAXI DIRECT and MULTIPOINT 6 / 15: 80 to 2,000 rpm POLY 15: 130 to 990 rpm 50108213_02.2007 Thermo Scientific...
- Page 16 Reduce the filling level in the stirring vessel. If the stirring action is too weak: Increase power, or Use a magnetic stirring bar of the KOMET series, or Use a longer magnetic stirring bar, or a stirring vessel of smaller diameter. Thermo Scientific 50108213_02.2007...
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Page 17: Maintenance And Cleaning
Return the defective power supply unit (9) to our customer service for repair. CAUTION In case of repair, the equipment must only be opened by an authorized service agent. 50108213_02.2007 Thermo Scientific... - Page 18 When ordering spares, please state equipment type and serial number. You can obtain further technical documents (e.g. circuit diagrams, board data) for your engineers by contacting the address on the inside of the cover sheet. Thermo Scientific 50108213_02.2007...
- Page 19 Check to see whether the power supply unit (9) is delivering voltage. The power supply unit (9) is fitted with a temperature controlled safety system which will switch off the power supply unit (9) permanently in an overload situation. 50108213_02.2007 Thermo Scientific...
- Page 20 -40 °C to +70 °C at 10 % to 95 % relative humidity storage 500 to 1,060 hPa barometric pressure conditions Operating voltage Protective IP 62 IP 32 IP 62 IP 62 system (EN 60529) Equipment according to IEC 1010 construction Thermo Scientific 50108213_02.2007...
- Page 21 +5 °C to +40 °C at 30 % to 80 % relative conditions humidity 700 to 1,060 hPa barometric pressure Permissible storage -40 °C to +70 °C at 10 % to 95 % relative conditions humidity 500 to 1,060 hPa barometric pressure Subject to technical alterations 50108213_02.2007 Thermo Scientific...
- Page 22 If despite our strict quality controls a system component should ever fail to work perfectly, it can be repaired or replaced by our after-sales service without difficulty. Please retain your invoice, which will be needed when presenting any warranty claims. Two years full warranty on all system components! Thermo Scientific 50108213_02.2007...