User Manual

3
Model Description pg. 3
Supplied Equip. pg. 4
Available Features pg. 5
Specifications pg. 6-7
Control Panel pg. 8
Setup Location pg. 9
Initial Setup Procedure pg. 9-10
Additional Setup Procedure pg. 10-11
Operation pg. 11
Balanced Loads pg. 12
Tube Holder Configurations pg. 13
Force Chart—12 place pg. 14
Care and Preventative Service pg. 15
Rotor Removal and Installation pg. 16
Safety pg. 17
Emergency Rotor Chamber Entry pg. 17
Troubleshooting pg. 18
Available Accessories pg. 19-20
Warranty pg. 24
Table of Contents
WARNING: Care should be taken when handling substances that are known to be toxic,
radioactive or contaminated with pathogenic microorganisms when using this centrifuge for
the safety of both the operator and service personnel. When Risk Group II materials are
used (as identified in the World Health Organization “Laboratory Bio-Safety Manual”), a
Bio-Seal should be employed. More than one level of protection must be provided in the
case of materials of a higher group. The use of flammable or explosive materials as well
as those materials which chemically react vigorously is prohibited.
Model Description:
The Horizon Model 755 is a continuous-duty, electronically-controlled, single or variable-speed, horizontal
laboratory centrifuge with a lid safety interlock system. The unit is controlled by an electronic push-button
timer that is variable from 1 to 30 minutes, for precise spin times and ease of use. Samples can be safely
viewed through the transparent lid. The imbalance detection system safely terminates a run cycle in the event
that a severely imbalanced load is present. Entry into the machine is restricted during operation by the safety
interlock system. The Horizon features a lighted control panel that displays the status of the machine, easily
viewable from a distance. Finally, a cycle counter keeps a count of the total number of machine runs for
servicing and maintenance records.
Intended Use:
General purpose laboratory centrifuge for sample preparation.