Beckman Optima XL-80K Ultracentrifuge

80,000 rpm
602,000 g
User-customized programs stored and recalled with the push of a button
Programmable delay start for convenient finishing time
Microprocessor control
Accel/decel profiles for instant customization of operating conditions
Simple user setup with automatic preheating, precooling, vacuum, and dry cycle
Dual display of "Set" and "Actual" run parameters keeps you continuously informed of run conditions
w²t of total centrifugal effect of a run in radians squared per second contributes to run-to-run reproducibility
Diagnostic display to alert users to error conditions

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Complete Product Description

Beckman Optima XL-80K Ultracentrifuge

The Optima XL-80K ultracentrifuge is used to generate centrifugal forces for the separation of particles. The Beckman Optima XL-80K, with maximum speeds of 80 000 rpm

The Optima XL is microprocessor-controlled, providing interactive, menu-driven operation. Software functions assist with run preparation and optimizing the efficiency of separations. The Optima XL has an extensive database of rotor specifications and catalog of available Beckman rotors, the ability to perform common centrifugation-related calculations, and the ESP™ Efficient Sedimentation Program, which simulates the formation of the gradient and separation of sample components in a wide selection of rotors.

The Optima XL also provides a Program Library, which can hold up to nine standard programs and a multi-step sequential program, rotor usage logging, and a built-in printer for printing rotor and run data.

Optima XL K-Series performs common calculations such as CsCl speed reductions, run conversions, and more. Imbalance-tolerant drive allows visual balancing of rotor loads and eliminates the need for operators to weigh individual samples. Air-cooled drive and thermoelectric heating/cooling system use no chlorofluorocarbons.

Control Features
Operational Features
Physical Data

Speed
Set Speed	1000 to maximum speed1 in increments of 100 rpm Speed control . Actual rotor speed will be ±20 rpm of the set speed (above 1000 rpm)
Speed Display	indicates rotor speed in increments of 10 rpm at speeds below 1000 rpm and 100 rpm at speeds above 1000 rpm
Time
Set Time	up to 999 hours and 59 minutes; HOLD for runs of unspecified length
Time Display	indicates time remaining in timed runs, time elapsed in HOLD runs, and estimated time remaining in ω2t runs
Rotor Temperature	0 to 40°C in increments of 1°C
Temperature Control	±0.5°C of set temperature
Temperature Display	indicates rotor temperature in increments of 0.1°C
Temperature Stability	within 0.3°C after equilibration ω2t
Integrator
Set ω2t	up to 9.99 × 1014 radians squared per second
ω2t Display	shows the accumulated ω2t to three significant digits (in exponential notation)
Acceleration	nine slow acceleration profiles, or maximum acceleration from 0 rpm to set speed
Decleration	nine slow deceleration profiles, no brake, or maximum deceleration from set speed to 0 rpm
Operation	standard or programmed; instrument memory can store up to nine individual programs and one sequential program of up to five steps
Key Switch	used to select normal, zonal, or locked operation

Revolution Counter	displays accumulated total number of rotor revolutions in tens of thousands
Barrier Ring	41-mm (1.63-in.) heat-treated steel alloy armor ring surrounded by a 13-mm (0.50-in.) steel vacuum chamber to provide full protection for the operator
Door	17.5-mm (0.69-in.) high-strength structural steel
Vacuum	diffusion pump in series with a mechanical pump reduces chamber pressure to below 5 microns (0.7 Pa)
Instrument Classification	S (uses all Beckman Coulter preparative rotors except Types 35 and 42.1 with serial numbers 1299 or lower)
RS 232C Accessory Port	external connection to provide standard RS 232C interface for computer remote control. Connector is a 25-pin female DIN connector, which mates with a 25-pin male DIN connector.

Weight	465 kg (1025 lb)
Height	(overall) 120.7 cm (47.5 in.)
Width	94.0 cm (37 in.)
Depth	67.3 cm (26.5 in.)
Clearances	5.1 cm (2 in.) sides; 15.2 cm (6 in.) rear
Finish	urethane paint on top surface; general-purpose paint on other surfaces; coated polycarbonate finish on control panel
Maximum heat dissipation into the room	1.0 kW (3400 Btu/hr)
Humidity restrictions	<95% (non-condensing)
Noise level measured 0.91 m (3 ft) in front of the instrument	57 dBa
Installation category.	II
Pollution degree	2