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9 Warranty

Thermo Scientific

22

50108213_02.2007

9 Warranty

VARIOMAG magnetic stirrers have a modular construction and offer the greatest
possible degree of trouble-free operation, thanks to their maintenance-free stirring
and magnetic drives.
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!

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Содержание Variomag MAXI DIRECT

Страница 1: ...POLY 15 Magnetic Stirrer Operating Manual 50108213 Issue 02 2007 TM MAXI DIRECT MULTIPOINT 6 15 ...

Страница 2: ...t utilization and information of its content are not allowed unless specifically authorized Violations commit you to compensation Subject to change without notice No liability assumed for literal mistakes Thermo Electron LED GmbH is legal successor of H P Labortechnik AG Thermo Electron LED GmbH Robert Bosch Straße 1 D 63505 Langenselbold Germany national toll free Phone Sales 0800 1536376 Phone S...

Страница 3: ...iderations 7 2 Equipment description 9 3 Function 10 4 Startup procedure 11 5 Stirring operation 12 5 1 Stirring vessels 12 5 2 Magnetic stirring bars 13 5 3 Recommended rotation speed ranges 15 5 4 Stirring 15 5 4 1 Tips on stirring 16 6 Maintenance and cleaning 17 7 Troubleshooting 19 8 Technical specifications 20 9 Warranty 22 ...

Страница 4: ... unit 5 Magnetic stirrer 10 Mains cable Figure 1 The MAXI DIRECT magnetic stirrer with bench top power supply unit 1 START STOP key 7 Digital display 2 key 8 Secondary power cable 3 key 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 1 2 3 5 6 7 8 9 10 8 9 10 1 2 3 5 6 7 4 ...

Страница 5: ... 1 START STOP key 6 Stirring points 2 key 7 Digital display 3 key 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 1 2 3 4 5 6 7 8 9 10 ...

Страница 6: ...correct use The magnetic stirrers MAXI DIRECT POLY 15 and MULTIPOINT 6 15 must not be operated in hazardous locations The stirrers must not be operated in a water bath Do not stir or shake flammable liquids with a low boiling point The suitability of the direct controlled magnetic stirrers for use in incubators is limited because the stirring power cannot be adjusted as necessary Moreover the inte...

Страница 7: ...stirrers must not be immersed in water or cleaning solutions DANGER Defective secondary power cables 8 mains cables 10 or mains plugs must be replaced only with original parts by the manufacturer or one of its representatives Return the defective power supply unit 9 to our customer service for repair DANGER Magnetism Magnetic or metallic parts e g data carriers pacemakers watches can be affected b...

Страница 8: ...in destruction of the magnetic stirring bar INFORMATION If you are not using the magnetic stirrer 5 for a longer period of time disconnect it from mains supply Only then the stirrer is completely switched off INFORMATION The length of the magnetic stirring bars must not exceed 80 of the vessel diameter In the case of circular and triangular magnetic stirring bars the length must not exceed 50 mm D...

Страница 9: ...er a startup time of approximately 15 seconds all magnetic stirring bars are synchronized to rotate at the preselected speed The soft start up function guarantees a safe acceleration of the magnetic stirring bars and can be monitored via the digital display 7 The soft start up function is switched on when a dot appears next to the rotation speed in the digital display 79 As soon as the selected ro...

Страница 10: ...r larger quantities and more viscous liquids and reduced power for long term operation without heat generation You can stir liquids in various shapes of vessel e g Erlenmeyer flasks beakers As the rotation speed can be variably adjusted liquids can be moved both gently as well as vigorously mixed The stirring vessel contains a magnetic stirring bar When the stirring vessels are placed on the stirr...

Страница 11: ...ent must not be operated in hazardous locations and in a water bath CAUTION Permitted ambient conditions Cf Technical specifications Avoid extreme temperature changes The power supply unit 9 must not be run in humid rooms or set up in water splash zones Connect the secondary power cable 8 of the power supply unit 9 to the jack at the back of the magnetic stirrer 5 Connect the mains cable 10 of the...

Страница 12: ...tively small diameter and a thin bottom The following table gives examples of suitable stirring vessels and the available stirring points In the case of larger vessels not every stirring point 6 can be occupied by a vessel Type MULTIPOIN T 6 MULTIPOINT 15 POLY 15 Stirring vessels Nominal capacity Available stirring points Erlenmeyer flasks and flat bottomed flasks 25 ml 50 100 ml 250 500 ml 1000 m...

Страница 13: ...se of circular and triangular magnetic stirring bars the length must not exceed 50 mm Do not use cylindrical stirring bars with a center ring or elliptical stirring bars with a round cross section INFORMATION Some magnetic stirring bars especially triangular bars may have a critical resonance frequency at lower rotation speeds This may cause the magnetic stirring bar to wander away from the turnin...

Страница 14: ...agnets will also increase friction The standard design of the KOMET magnetic stirring bar is therefore unsuitable for stirring liquids containing particulate matter such as mud or for stirring in vessels with a rough interior surface Some of the KOMET stirring bars are specially fitted with a wear resitant glide ring for use under excruciating circumstances such as when stirring vessels feature ro...

Страница 15: ...el onto the stirring point 6 Press the START STOP key 1 The magnetic stirrer has a soft start feature that first centres the magnetic stirring bars within the vessels and then slowly accelerates them to the desired speed MAXI DIRECT and MULTIPOINT 6 15 With these magnetic stirrers you have a choice of four different stirring power settings 5 10 15 20 watts After startup the digital display 7 shows...

Страница 16: ...or Reduce power or Use a smaller magnetic stirring bar If the magnetic stirring bar cannot be centred or constantly wanders off centre Reaction between the alternating magnetic field and the magnetic stirring bar too weak or the base of the stirring vessel is concave or too thick Move the stirring vessel a little back and forth and recentre it on the stirring point 6 Reduce the rotation speed or I...

Страница 17: ...nd alkalis The standing surface is coated with a protective film You may leave this on the magnetic stirrer 5 or strip it off Clean the surfaces of the magnetic stirrer 5 with a moistened cloth at regular intervals For this purpose you can use water containing a surfactant detergent additive isopropanol Switch the magnetic stirrer 5 to standby with the help of the START STOP key 1 The digital disp...

Страница 18: ...ring the shipment please send the equipment correctly packed in the original packing Please always enclose the filled out return delivery note If necessary ask for the return delivery note at Thermo address see inside of the cover sheet 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...

Страница 19: ...ly Do not subject the magnetic stirring bar to a strong inverse magnetic field This may result in destruction of the magnetic stirring bar Remove and replace the magnetic stirring bar with a new one Or Use the KOMET series of super strong magnetic stirring bars offered by Thermo see chapter 5 2 They are made from high performance Samarium Cobalt magnets Any risk of demagnetization by external magn...

Страница 20: ...m 80 2 000 130 990 80 2 000 80 2 000 Speed regulation for alternating loads none Dimensions W x D x H mm 180 x 215 x 35 240 x 420 x 35 240 x 420 x 35 240 x 420 x 35 Weight kg 2 5 6 7 5 7 5 Housing Stainless steel Stainless steel powder coated Stainless steel Stainless steel Permissible operating conditions 5 C to 40 C at max 95 relative humidity Permissible storage conditions 40 C to 70 C at 10 to...

Страница 21: ...Mark of conformity Protection EN 60529 VAC Hz VDC 100 240 50 60 24 Primary and secondary cable approx 2 m CE CETLUL IP 20 Permissible operation conditions 5 C to 40 C at 30 to 80 relative humidity 700 to 1 060 hPa barometric pressure Permissible storage conditions 40 C to 70 C at 10 to 95 relative humidity 500 to 1 060 hPa barometric pressure Subject to technical alterations ...

Страница 22: ...peration thanks to their maintenance free stirring and magnetic drives 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 ...

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