Beckman Optima LE-80K Ultracentrifuge, 1000 - 80 000 rpm, Beckman Coulter (CAT#: STEM-LCPO-0106-YJL)

Beckman Optima LE-80K Ultracentrifuge, 1000 - 80 000 rpm, model LE-80K, is manufactured by Beckman Coulter. The Beckman Optima™ LE-80K Ultracentrifuge offers the fastest separations possible in the minimum amount of time with its performance capability of up to 80,000 rpm. This versatile model is compatible with a wide range of superior rotors and tubes. Capable of rapid run times, the Optima™ LE-80 K is perfect for a broad range of applications.
Featuring a high tolerance of rotor imbalance, this Beckman centrifuge uses a frequency-controlled, air-cooled, direct-drive induction motor that requires no brushes or gears. Operators are assured of smooth and quiet performance with this externally forced-air cooled and internally oil cooled unit.
Equipped with easy-to-use, environment-friendly and microprocessor–based control cooling systems, the Beckman LE-80 K eliminated the use of CFCs and other dangerous liquid refrigerants. This Optima centrifuge is operated through a keypad control panel, and digital display which shows parameters including rotor speed, run time, rotor temperature, w2t value, and selected program number. The display has a dual purpose, indicating both actual values/conditions and set values.
Other features of the Beckman Optima™ LE-80 K centrifuge include automatic standby mode, overspeed and purge system, LED run indicators, and diagnostic messages. Its design includes a high strength structural steel chamber door with a solenoid interlock which prevents it from opening during operation. The LE-80K has an aluminum rotor chamber, coated with a chemical-resistant epoxy finish.

Condition: Certified Pre-Owned
Dimensions (H x W x D): 47.5 in. x 37 in. x 26.5 in. (120.7 cm x 94.0 cm x 67.3 cm)
Weight: 1025 lbs (465 kg)
Maximum Heat Dissipation into the Room: 1.0 kW (3400 Btu/hr)
Noise Level: 57 dBa
Installation Category: II
Pollution Degree: 2
Set Speed: 1000 rpm to 80 000 rpm in increments of 100 rpm
Speed Control: Actual rotor speed will be +/- 50 rpm of the set speed (above 1000)
Speed Display: Indicates rotor speed in increments of 10 rpm at speeds below 1000 rpm, and increment of 100 rpm at speeds above 1000 rpm
Set Time: Up to 99 hours and 59 minutes; HOLD for runs of unspecified length
Time Display: Indicates time remaining in timed runs, time elapsed in HOLD runs, or estimated time remaining in ?2t runs
Rotor Temperature
Set Temperature: 0 to 40 deg C in increments of 1 deg C
Temperature Control: +/1 1 deg C of set temperature
Display: Indicates rotor temperature in increments of 1 deg C
Stability: Within 0.3 deg C of set after equilibrium is reached
Acceleration: Selection from two profiles: maximum acceleration from 0 rpm to set speed, or slow acceleration from 0 to 500 rpm, followed by maximum acceleration to set speed
Deceleration: Selection from three profiles: full dynamic braking to 0 rpm, slow (full brake to 500 rpm followed by reduced braking to a gentle stop), or no brake
Operation: Standard, programmed, or delayed start; instrument memory can store up to nine individual programs
Revolution Corner: 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 12-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)

Frequency-controlled, air-cooled direct-drive induction motor
CFC-free cooling system
Overspeed safety system
Dual purpose digital display
GMI Certified Pre-Owned (Eligible for a 1-Year Warranty)

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