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Table of Contents
Model Description
pg. 2
Supplied Equipment
pg. 2
Features
pg. 3
Specifications
pg. 3
Setup Location and Procedure
pg. 4
Operation
pg. 5
Load Balancing Instructions
pg. 5
Tube Holder Configurations
pg. 6
Rotor Removal and Installation
pg. 7
Care and Maintenance
pg. 8,9
Safety
pg. 9
Troubleshooting
pg. 9
Calibration and Ground Testing
pg. 9
Replacement Parts
pg. 10
Available Accessories
pg. 10
Model Description:
The Horizon Model 642B is a continuous-duty, horizontal centrifuge.
The unique rotor design allows for horizontal operation without the
need for any extra parts beyond tube carriers.The unit is controlled
by a mechanical timer settable from 1 to 30 minutes. Samples can be
safely viewed through the transparent lid. In the event that the lid is
opened during a run, the power to the motor is disconnected.
For warranty information, turn to page 12.
Supplied Equipment*:
The following items come standard with each Horizon centrifuge:
1. One (1) six–place horizontal rotor
2. Six (6) 100mm tube holders
3. Six (6) 75mm tube holders
Optional Accessories: (not shown)
0.25" tube cushions, p/n 9150
1.0" tube cushions, p/n 1525
B
1.
*
The rotor and rotor accessories are rated for a rotation frequency of 4,000 RPM.
B
C
Page 2
WARNING: For the safety of both the
operator and service personnel, care
should be taken when using this centrifuge
if handling substances that are known to
be toxic, radioactive or contaminated with
pathogenic microorganisms. When Risk
Group II materials are used, (as identified
in the World Health Organization "Labo-
ratory Bio–Safety Manual"), a Bio–Seal
should be employed. In the event that
materials of a higher risk group are being
used, more than one level of protection
must be provided. The use of flammable
or explosive materials as well as those
materials which have a vigorous chemical
reaction is prohibited. For your safety and
the durability of your machine, never
transport or store centrifuge with tube
holders inside machine.
p/n 7786061
p/n 7713031
p/n 7713033
x 6
x 6
2.
3.
Page 11
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