Maxi Mix II Vortex Mixer - Operation Manual and Parts Listtools.thermofisher.com/content/sfs/manuals/D01899~.pdf · Maxi Mix II Vortex Mixer - Operation Manual and Parts List Subject

Enquiries from Germany: Sales phone: 08001536376, customer service phone: 08001112110Sales/service Fax: 08001112114,Email:[email protected]

Enquiries from Europe, Middle East and Africa:Phone: +49(0)6148/90-6940, Fax: +49(0)6148/90-6772,E-mail:[email protected]

Enquiries from North America:Phone: +1 800-879 7767, Fax: +1 828-658 0363,E-mail:[email protected]

Enquiries from Latin America:Phone: +1 828-658 2711, Fax: +1 828-645 9466,E-mail:[email protected]

Thermo Fisher Scientific275 Aiken Road Asheville,NC 28804 USA

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Enquiries from Germany: Sales phone: 08001536376, customer service phone: 08001112110Sales/service Fax: 08001112114,Email:[email protected]

Enquiries from Europe, Middle East and Africa:Phone: +49(0)6148/90-6940, Fax: +49(0)6148/90-6772,E-mail:[email protected]

Enquiries from North America:Phone: +1 800-879 7767, Fax: +1 828-658 0363,E-mail:[email protected]

Enquiries from Latin America:Phone: +1 828-658 2711, Fax: +1 828-645 9466,E-mail:[email protected]

12/8/10

12/8/10

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General Specifications ........................................................................................................................................3Declaration of Conformity ..............................................................................................................................3Environmental Conditions ..............................................................................................................................3

Safety Information ..............................................................................................................................................4Important Information ......................................................................................................................................4Warnings ..........................................................................................................................................................4

Introduction..........................................................................................................................................................5Intended Use ..................................................................................................................................................5Principles of Operation ..................................................................................................................................5

Installation ..........................................................................................................................................................6Unpackaging ....................................................................................................................................................6Site Selection: ..................................................................................................................................................6Specifications ..................................................................................................................................................6

Operation ............................................................................................................................................................7Power Switch: ..................................................................................................................................................7Speed Control: ................................................................................................................................................7

Maintenance and Servicing ................................................................................................................................8To Replace the Power Switch: ........................................................................................................................8To Replace Rheostat (Speed Control): ............................................................................................................8To Replace Microswitch: ..................................................................................................................................9To Replace Motor:..........................................................................................................................................10To Replace Damper Springs: ........................................................................................................................11To Replace Mixing Surface Disc: ..................................................................................................................12To Install Single Cup Mixing Head: ..............................................................................................................12

Problem Solving Guide ....................................................................................................................................13Replacement Parts List ....................................................................................................................................14Ordering Procedures ........................................................................................................................................14Exploded View ..................................................................................................................................................15One Year Limited Warranty ..............................................................................................................................16

Table of Contents

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North America: USA/Canada +1 866 984 3766 (866-9-THERMO) www.thermo.comEurope: Austria +43 1 801 40 0, Belgium +32 2 482 30 30, France +33 2 2803 2180, Germany national toll free 08001-536 376,Germany international +49 6184 90 6940, Italy +39 02 02 95059 434-254-375, Netherlands +31 76 571 4440, Nordic/Baltic countries +358 9 329 100,Russia/CIS +7 (812) 703 42 15, Spain/Portugal +34 93 223 09 18, Switzerland +41 44 454 12 12, UK/Ireland +44 870 609 9203Asia: China +86 21 6865 4588 or +86 10 8419 3588, India toll free 1800 22 8374, India +91 22 6716 2200, Japan +81 45 453 9220,Other Asian countries +852 2885 4613 Countries not listed: +49 6184 90 6940 or +33 2 2803 2180

7/9/10

Allemagne

Thermo Fisher ScientificRobert-Bosch-Strasse 1,D-63505Langenselbold,Germany.

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Important InformationYour Thermo Scientific Maxi Mix II Vortex Mixer has beendesigned with function, reliability, and safety in mind. It isyour responsibility to install it in conformance with local elec-trical codes.

This manual contains important operating and safety infor-mation. You must carefully read and understand the contentsof this manual prior to the use of this equipment. For safeoperation, please pay attention to the alert signals through-out the manual.

WarningsTo avoid electrical shock, always:

1. Use a properly grounded electrical outlet of cor-rect voltage and current handling capacity.

2. Disconnect from power supply before servicing.

To avoid personal injury:1. Do not use in the presence of flammable or com-

bustible materials; fire or explosion may result.This device contains components which mayignite such materials.

2. Do not turn on mixer unless the speed control isturned to minimum; failure to do so may causeaccessories and vessels to be thrown off themixer.

3. Refer servicing to qualified personnel.

Safety Information

WarningWarnings alert you to a possibility of per-sonal injury.

CautionCautions alert you to a possibility ofdamage to the equipment.

NoteNotes alert you to pertinent facts andconditions.

Alert Signals

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Intended UseThe Type M37600 vortex mixers are general laboratoryvortex mixers. They are intended for applications wherevortexing of single or multiple tubes is required. Vesselswith closure tops up to a maximum of 125 ml can also bevortexed.

The unit consists of 1) a mixing surface disc, 2) a three-position power switch and, 3) an adjustable speed control(See Figure 1).

Principles of OperationThe mixer incorporates a permanently lubricated motor todrive the mixing platform. A three-position power switchenables the mixer to be operated continuously or bydepression of the silicone rubber top. The speed of themixer is regulated by an adjustable rheostat. Also, suctioncup feet are incorporated to prevent unit movement.

Figure 1: Maxi-Mix II

Three-position power switch

Mixing surface disc

Adjustable speed control

Introduction

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UnpackagingUnpack Maxi-Mix II from box. An interchangeable rubbercup for mixing test tubes and a replacement mixing surfacedisc are included in the box.

Site SelectionPlace mixer on a sturdy flat surface.

SpecificationsThe electrical specifications are located on the specifica-tion plate on the back of the unit. Consult customer serviceif your electrical service is different than those listed on thespecification plate.

Installation

Weight Dimensions Electrical(lbs.) (Inches)

Model No. Net Ship H L Top Diameter Volts Amps HzM37615 6 7 6” 7” 3.5” 120 .45 50/60M37610-33 6 7 6” 7” 3.5” 230 .20 50M37610-33CN 6 7 6” 7” 3.5” 230 .20 50M37614 6 7 6” 7” 3.5” 100 .56 50/60

WarningUse a properly grounded electricaloutlet of correct voltage and currenthandling capacity.

Do not use in the presence of flam-mable or combustible materials; fireor explosion may result. This devicecontains components which mayignite such materials.

NoteSome misalignment of the motorbearings in this product may haveoccurred during shipping and han-dling. Prior to first use, the mixershould be run at maximum speed for10 minutes to realign the motorbearings.

Specifications

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Power Switch:The power switch is a combination ON/OFF and modeswitch to enable TOUCH operation. Move the power switchto either the “FULL” position or the “TOUCH” position. Inthe “FULL” position, the mixing head will begin oscillatingautomatically. In the “TOUCH” position, the mixing headwill oscillate when it is depressed.

Speed Control:The speed control is a nonlinear type control. The oscillat-ing speed will increase at a non-uniform rate as the controlis turned clockwise.

To operate Maxi-Mix, move power switch to either the“FULL” position or the “TOUCH” position. Turn speed con-trol to the desired setting. Touching the vessel to the discwill initiate the vortex action. Mixing action will intensify asgreater pressure is exerted against the mixing surface. Tostop the mixing action, remove vessel from disc or movethe power switch to the “OFF” position. (See Maintenanceand Servicing for installation of the single cup mixing headand the mixing surface disc).

Operation

WarningDo not turn the mixer on unless thespeed control is turned to minimum;failure to do so may cause acces-sories and vessels to be thrown offthe mixer.

NoteThere is no absolute limit on themaximum size of vessel which canbe used; much depends on tech-nique, the shape of the vessel, theviscosity of the contents, and theamount of liquid. (Vessels requireclosure tops to prevent contentsfrom being spilled out during mix-ing). As a general rule, do not vortexvessels larger than 250 ml and vol-umes greater than 125 ml.

NoteUnit may need some loading to slowthe motor when going from fast toslow.

NoteIf the equipment is used in a mannernot specified by the manufacturer,the protection provided by the equip-ment may be impared.

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To Replace the Power Switch:a) Disconnect mixer from power supply.

b) Peel off the mixing surface disc. Hold the mixingplatform to keep from turning and remove theplatform from the counterweight assembly.

c) Turn mixer upside down and remove the fourscrews securing plastic housing. Turn mixerupright and remove housing.

d) Desolder four wires from switch. Identify ormark wires disconnected to insure properplacement and connection when reinstalling.

e) Remove defective switch.

f) Install new switch with the number “3” terminalon top. Resolder the wires as identified ormarked in Step (d).

g) Reinstall plastic housing and secure with fourscrews.

h) While holding the mixing platform to keep it fromturning, secure the platform to the counter-weight assembly. If the mixing surface is ingood condition, reapply it to the mixing platform.

i) Reconnect mixer to power supply.

To Replace Rheostat (SpeedControl):

a) Disconnect mixer from power supply.

b) Peel off the mixing surface disc. Hold the mixingplatform to keep from turning and remove theplatform from the counterweight assembly.

c) Turn mixer upside down and remove the fourscrews securing plastic housing. Also, removetwo screws securing dial plate.

d) Turn mixer upright and remove the housing.

Maintenance and Servicing

WarningDisconnect from power supply beforeservicing.

Refer servicing to qualified personnel.

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e) Desolder the two wires from rheostat. Identify or markwires disconnected to insure proper placement andconnection when reinstalling.

f) Loosen set screw on knob and remove knob. Removelock nut from rheostat and remove defective rheostat.

g) Insert new rheostat into dial plate and secure with locknut. Resolder the wires as identified or marked in Step(e).

h) Turn rheostat shaft fully counterclockwise and slideknob over shaft. Align the pointer on knob with the edgeof the graduated band. Secure knob with set screw.

i) Secure dial plate to base.

j) Reinstall plastic housing and secure with four screws.

k) While holding the mixing platform to keep it from turning,secure the platform to the counterweight assembly. Ifthe mixing surface is in good condition, reapply it to themixing platform.

l) Reconnect mixer to power supply.

To Replace Microswitch:a) Disconnect mixer from power supply.

b) Peel off the mixing surface disc. Hold the mixing plat-form to keep from turning and remove the platform fromthe counterweight assembly.

c) Turn mixer upside down and remove four screws secur-ing plastic housing.


e) Remove the four screws holding the motor to the rubbermounts. Position motor on its side.

f) Desolder the two wires from microswitch and remove

MAINTENANCE AND SERVICING

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microswitch from motor. Save the spring and plungerfrom defective microswitch. Identify or mark wires dis-connected to insure proper placement and connec-tion when reinstalling.

g) Insert spring and plunger into the shaft of the newmicroswitch. Position microswitch on mounting studsand secure with two screws. Resolder the wires as iden-tified or marked in Step (f).

h) Reposition motor and secure with four screws.

i) Reinstall plastic housing and secure with four screws.

j) While holding the mixing platform to keep it from turn-ing, secure the platform to the counterweight assembly.If the mixing surface is in good condition, reapply it tothe mixing platform.

k) Reconnect mixer to power supply.

To Replace Motor:a) Disconnect mixer from power supply.

b) Peel off the mixing surface disc. Hold the mixing plat-form to keep from turning and remove the platform fromthe counterweight assembly.

c) Turn mixer upside down and remove four screws secur-ing plastic housing.


e) Desolder the two wires from motor. Identity or markwires disconnected to insure proper placement andconnection when reinstalling.

f) Remove the counterweight assembly, brackets anddamper springs from top of motor.

g) Remove the motor and then the microswitch assemblyfrom bottom of motor.

h) Reinstall the components removed in Steps (f) and (g)to the new motor.


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i) Resolder the wires as identified or marked in Step (e).

j) Reinstall plastic housing and secure with four screws.

k) While holding the mixing platform to keep it from turn-ing, secure the platform to the counterweight assem-bly. If the mixing surface is in good condition, reapplyit to the mixing platform.

l) Reconnect mixer to power supply.

To Replace Damper Springs:a) Disconnect mixer from power supply.

b) Peel off the mixing surface disc. Hold the mixing plat-form to keep from turning and remove the platformfrom the counterweight assembly.

c) Turn mixer upside down and remove four screwssecuring plastic housing.

d) Turn mixer upright and remove housing.

e) Remove defective damper springs.

f) Install new damper springs.

g) Reinstall plastic housing and secure with four screws.

h) While holding the mixing platform to keep it from turn-ing, secure the platform to the counterweight assem-bly. If the mixing surface is in good condition, reapplyit to the mixing platform.

i) Reconnect mixer to power supply.

To Replace Mixing Surface Disc:a) Disconnect mixer from power supply.

b) Peel off old mixing surface disc and clean the bondingarea.


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c) Remove the paper backing from the new mix-ing surface disc and apply.

d) Reconnect mixer to power supply.

To Install Single Cup MixingHead:

a) Disconnect mixer from power supply.

b) Peel off mixing surface disc and while holdingthe mixing platform to keep from turning,remove mixing platform.

c) While holding the rubber mixing cup to keepfrom turning, install the single cup mixing headwith the hold down screw.

d) Reconnect mixer to power supply.


Wiring Diagram

The Problem Solving tips section is intended to aid in defining and correcting possible service problems.When using the guide, select the problem category that resembles the malfunction, then proceed to the possi-ble causes category and take necessary corrective action.

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Problem Possible Causes Corrective ActionMixer doesnʼt operate whenpower switch is in the “FullOn” position.

Check mixer connections topower supply.

Replace power switch.

Replace speed control.

Replace motor.

Mixer doesnʼt operate whenpower switch is in the “TouchOn” position and the disc isdepressed.

Not connected to power sup-ply.

Defective microswitch.

Speed control at minimumsetting and too much pres-sure on disc.

Defective speed control.

Defective motor.


Replace microswitch.

Turn speed control to highersetting.


Replace motor.

Mixer doesnʼt operate whenpower switch is in either “ON”position.


Replace power switch.


Replace motor.

Speed control doesnʼt regu-late speed.

Internal chattering noise.


Going from fast to slow


Load the unit to slow themotor.

Defective spring damper links. Replace spring damper links.

Not connected to powersupply.

Defective power switch.


Defective motor.

Not connected to powersupply.

Defective power switch.


Defective motor.

Problem Solving

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7/9/10

Allemagne


800-943-2006 or 800-926-0505

943-2006 or 800-926-0505800-

15

Exploded View

Exploded View

.

Allemagne

800-926-0505.

800-

800-943-2006 or 800-926-0505.

800-926-0505.

9/9/10


800-943-2006 or 800-926-0505.


Documents

Maxi Mix II Vortex Mixer - Operation Manual and Parts Listtools.thermofisher.com/content/sfs/manuals/D01899~.pdf · Maxi Mix II Vortex Mixer - Operation Manual and Parts List Subject