Homogenizer OMNI User manual

REV. A
17258
OMNI MIXER & MACRO
HOMOGENIZER
USER MANUAL

2
WARRANTY INFORMATION
This manual is a guide for the use of the Omni Mixer and Omni Macro
Homogenizers and accessories.
Data herein has been veried and validated. It is believed adequate for the
intended use of the instrument. If the instrument or procedures are used for
purposes over and above the capabilities specied herein, conrmation of the
validity and suitability should be obtained, otherwise Omni International does
not guarantee results and assumes no obligation or liability. This publication
is not a license to operate under, or a recommendation to infringe upon, any
process patents.
Notes, cautions, and warnings within the text of this manual are used to
emphasize important and critical instructions.
This Omni International product is warranted to be free from defects in
material and workmanship for a period of THREE YEARS from the date of
delivery. Omni International will repair or replace and return free of charge
any part which is returned to its factory within said period, transportation
prepaid by user, and which is found upon inspection to have been defective
in materials or workmanship. For the rst 90 days, both parts and service
are without charge. For the balance of the period, parts will be provided
but service will be charged at established labor rates. This warranty does
not include normal wear from use; it does not apply to any instrument or
parts which have been altered by anyone other than an employee of Omni
International nor to any instrument which has been damaged through
accident, negligence, failure to follow operating instructions, the use of
electric currents or circuits other than those specied on the plate axed
to the instrument, misuse, or abuse. Omni International reserves the right
to change, alter, modify, or improve any of its instruments without any
obligation whatsoever to make corresponding changes to any instrument
previously sold or shipped.
THE FORGOING OBLIGATION IS IN LIEU OF ALL OBLIGATIONS AND LIABILITIES
INCLUDING NEGLIGENCE AND ALL WARRANTIES OF MERCHANTABILITY OR OTH-
ERWISE, EXPRESSED OR IMPLIED IN FACT OR BY LAW, AND STATE OUR ENTIRE AND
EXCLUSIVE LIABILITY AND BUYERS EXCLUSIVE REMEDY FOR ANY CLAIM OF DAMAGES
IN CONNECTION WITH THE SALE OR FURNISHING OF GOODS OR PARTS, THEIR DESIGN,
SUITABILITY FOR USE, INSTALLATION, OR OPERATION. OMNI INTERNATIONAL WILL IN
NO EVENT BE LIABLE FOR ANY SPECIAL OR CONSEQUENTIAL DAMAGES WHATSOEVER,
AND THEIR LIABILITY UNDER NO CIRCUMSTANCES WILL EXCEED THE CONTRACT PRICE
FOR THE GOODS FOR WHICH LIABILITY IS CLAIMED.

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IMPORTANT SAFEGUARDS
- READ ALL INSTRUCTIONS BEFORE USING.
- SAVE THIS OWNER’S MANUAL.
The Omni Mixer and Omni Macro has been engineered for economical
functionality as well as safety; however, basic safety precautions and common
sense must always be demonstrated when using any electrical product.
DO NOT attempt to modify any part of the Omni Mixer or Omni Macro. If you
experience problems with or have questions about your Omni Mixer or Omni
Macro, contact your authorized dealer or call Omni International at 800-776-
4431 or 770-421-0058.
- DO NOT allow the machine to be submerged in any liquid.
- DO NOT use in any setting other than an indoor laboratory.
- DO NOT plug power cord into an incorrect outlet.
To reduce the risk of burns, electrocution, re, or injury:
- Use this product only for its intended purpose as described in this booklet.
DO NOT use attachments not recommended by the manufacturer.
- DO NOT operate the product if it is damaged in any way.
- Keep this product away from heated surfaces.
WARNING: Keep all housings in place and in working order. DO NOT use the
motor in a dangerous environment. DO NOT force the unit to do a job that it
was not designed to do.
NOTE: If you experience excessive vibration, heat, or bearing wear, please
contact technical support.
WARNING: DO NOT process pathogenic material in an open container, since
aerosols created during normal processing could be inhaled by the operator.
WARNING

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WARNING CONTINUED
CAUTION: To prevent damage to the drive mechanism, never operate the
motor without a sealed chamber assembly or generator probe installed.
CAUTION: Never operate the motor with the generator probe (or sealed
chamber assembly) partially attached to the coupling adapter.
NOTE: If you experience excessive vibration, heat, or bearing wear, please
contact technical support.
WARNING: The Omni Mixer or Omni Macro must be operated with the
chamber assembly resting on a table top or on the bottom of a cooling
container to prevent rotating blades from being exposed if the chamber
assembly becomes disengaged from the motor, and to minimize the
possibility of a broken seal.
CAUTION: To prevent damage to the drive mechanism, never operate the
motor without a sealed chamber assembly or generator probe installed, or
the ex rubber coupling removed from the motor.
WARNING: DO NOT modify the plug or cord that is provided. Damaged or
worn power cords should be repaired or replaced immediately by a qualied
electrician.
WARNING: Keep all housings in place and in working order. DO NOT use the
motor in a dangerous environment. DO NOT force the unit to do a job it was
not designed to do.
WARNING: Reduce the risk of unintentional starting. Make sure that the
switch is in the “OFF” position before plugging in the motor.

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TABLE OF CONTENTS
Warranty Information ..................................................................................................... 2
SECTION 1 — OMNI MIXER & MACRO HOMOGENIZERS
1.1 Specications ...................................................................................................... 6
1.2 Parts and Accessories ................................................................................... 6-7
1.3 Assembly of the Mixer or Macro............................................................... 7-8
1.4 General Operating Procedures...................................................................... 8
1.5 Quick Connect Coupling Assembly............................................................. 9
1.6 Determining Motor Speed.............................................................................. 9
SECTION 2 — ROTOR-STATOR GENERATOR PROBES
2.1 Generator Probe Operation..........................................................................10
2.2 Installing Generator Probes..........................................................................10
2.3 Operation............................................................................................................11
2.4 Vessel Restraint Disk........................................................................................11
SECTION 3 — SEALED CHAMBER ASSEMBLIES
3.1 Sealed Chamber Assemblies........................................................................12
3.2 Using Blade Chamber Assemblies ...................................................... 12-13
3.3 Sealed Generator Probe Assemblies.........................................................14
3.4 Installing Sealed Chamber Assemblies ....................................................14
3.5 Positioning the Chamber Assembly..........................................................15
3.6 Using a Cooling Vessel....................................................................................15
SECTION 4 — DISPERSATING AND IMPELLER ACCESSORIES
4.1 Dispersating Probe Accessories..................................................................16
4.2 Dispersion Impeller Accessories.................................................................16
SECTION 5 — MAINTENANCE
5.1 Motor Drive Unit...............................................................................................17
5.2 Removal of Aluminum Coupling................................................................17
5.3 Motor Brush Maintenance..................................................................... 17-18
5.4 Bearings and Lubrication ..............................................................................18
5.5 Grounding Instructions..................................................................................18
SECTION 6 — EXPLOSION DRAWINGS AND PART LISTS
6.1 Omni Mixer 115V/220V..................................................................................19
6.2 Omni Macro 115V/220V..................................................................................20
SECTION 7 — TROUBLESHOOTING .........................................................................21
SECTION 8 — SERVICE
8.1 Contact Us ...........................................................................................................22
8.2 Decontamination..............................................................................................22

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SECTION 1 — OMNI MIXER & MACRO HOMOGENIZERS
The Omni Mixer and Omni Macro Homogenizers are variable speed,
post-mounted homogenizers. The Omni Mixer is powered by a 600 watt,
18,000 rpm motor, and the Omni Macro by an 1,800 watt, 20,000 rpm motor.
Both utilize a broad range of sealed chamber assemblies, high shear knife
assemblies, as well as a choice of seven dierent diameter autoclavable
rotor-stator generator probes. The versatility of these units is unparalleled and
makes them the ideal choice for general purpose laboratory homogenizing.
1.1 SPECIFICATIONS
1.2 PARTS AND ACCESSORIES
Prior to operation, please remove all parts from the shipping container and
inspect for damaged or missing parts. If any parts are found to be damaged
or missing, please contact Omni International.The Omni Mixer or Omni Macro
consists of the following:
Description Mixer Macro Quantity
Motor Drive Unit (115 V) 17-600-01 17-1800-01 1
OR
Motor Drive Unit (220 V) 17-600-02 17-1800-02 1
Clamping Knob Assembly 17164 17164 1
Support Post 17026 17026 1
Finished Base Assembly 17234 17234 1
Generator Probe Adapter 15001 15001 1
Tool Kit (see Section 1.2) 17104 17104 1
Instruction Manual 17258 17258 1
Omni Mixer
500-18,000 rpm
24.5 in.
16.3 lbs. (7.4 kg.)
none
CE certied
Variable Motor Speed:
Height (with Stand):
Weight (with Stand):
Electrical Requirements:
Standards Approval/ Compliance:
115V:
220V:
Omni Macro
1,000- 20,000 rpm
25 in
21 lbs. (9.5 kg.)
none
none
115 volts, 60Hz or 220 volts, 50HZ

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SECTION 1 — OMNI MIXER & MACRO HOMOGENIZERS
1.2 PARTS AND ACCESSORIES (cont.)
The following components are supplied as part of the Omni Mixer
and Omni Macro tool kit (P/N 17104):
Description Part Number Quantity
Gen Probe Multi Tool 00-402 2
20, 32, 35, 45, 55 mm
Knife Tool
15100K 1
1/16” Allen Wrench 00-416 1
5/64” Allen Wrench 60027 1
3/32” Allen Wrench 60128 1
1/8” Allen Wrench 60241 1
5/32” Allen Wrench 737 1
5/16” x 5/8”Combo
Wrench
60033 1
5mm Lower Bearing Press 59105 1
7mm Lower Bearing Press 59107 1
Lubricant 61971 1
1.3 ASSEMBLY OF THE OMNI MIXER OR OMNI MACRO
To assemble the Omni Mixer or Omni Macro Homogenizer please refer
to the gure, and:
• Insert the support post into the support base. Secure the set screw
through the back of the support base into the groove in the support
post, using wrench P/N 60241 (1/8 in. Allen) provided.
• Place the clamping knob assembly in the motor support housing with
the two at surfaces on the clamping mechanism facing the support
post hole. The clamping knob assembly may be used either on the left
or the right side of the Omni Mixer or Omni Macro.
• Slide the motor support housing onto the support post and clamp
it into place with the clamping knob assembly. The motor support
housing should be positioned over the two longer legs of the
support base.

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SECTION 1 — OMNI MIXER & MACRO HOMOGENIZERS
NOTE: To prevent damage to the drive mechanism, never operate the motor
without a complete chamber assembly or generator probe in position.
NOTE: Never operate the motor with the generator probe (or sealed chamber
assembly) partially threaded onto the motor. To prevent damage to the motor
and attachments, follow the instructions in Section 2.2 to assure the genera-
tor probe (or sealed chamber assembly, Section 3.4) is fully threaded into the
coupling adapter.
NOTE: If you experience excessive vibration, heat, or bearing wear, please
contact technical support.
1.4 GENERAL OPERATING PROCEDURE
The speed of the Omni Mixer or Omni Macro may be regulated to achieve op-
timum results when working with dierent materials. A speed selection knob
is located at the side of the unit, as is a separate “OFF”or “ON” switch. When
in the “ON” position the motor speed can be varied from 0 rpm to maximum
speed. Select the optimal speed for each dierent combination of sample and
accessory for best processing results.

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SECTION 1 — OMNI MIXER & MACRO HOMOGENIZERS
1.5 QUICK CONNECT COUPLING ASSEMBLY (optional)
The Quick Connect Coupling Assembly is an optional accessory for the Omni
Mixer and Macro. To use, attach a Quick Connect Adapter to your chamber
assembly or generator probe. Next, slide the Adapter into the Quick
Connect Coupling and a retaining ring positions into place for a secure hold.
To disconnect, simply slide the ring upward and the processing accessory is
conveniently released.
1.6 DETERMINING MOTOR SPEED
To determine motor speed during operation, a tachometer (not included)
may be inserted into the Omni Mixer or Omni Macro through the top of the
motor as shown by removing the protective snap cap.

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2.1 GENERATOR PROBE OPERATION
Rotor-stator generator probes are available for use with the Omni Mixer and
Macro but are not supplied with the instruments. These probes can be used in
a sealed chamber, or for added convenience, in an open vessel environment
when aerosols or sample contamination are not a concern.
2.2 INSTALLING GENERATOR PROBES
All generator probes are easily installed to the motor unit by following these
steps:
1. Screw the generator probe adapter P/N 15001 into the coupling adapter
2. Screw the generator probe into the generator probe adapter until the
O-ring is completely inside the generator probe adapter.
3. If the generator probe does not thread fully into the generator probe
adapter, then unscrew the generator probe from the generator probe
adapter. Slightly rotate the rotor shaft collar on the generator probe. Then
return to step 2.
4. Tighten the generator probe by hand with moderate force.
5. Remove the blue protective cap from the tip of the generator probe and
the homogenizer is ready to operate.
SECTION 2 — ROTOR-STATOR GENERATOR PROBES
NOTE: The tip of the generator probe, especially on the saw tooth genera-
tor probes, is sharp. For safety purposes it is advisable that the
protective cap be replaced on the generator probe when not in use.
NOTE: The bottom of the generator probe is extremely fragile and care
should be taken to protect it. Replace the blue protective cap on the end of
the generator probe when the generator probe is not being used.
Generator Probe
Adapter