Product Description 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) 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 microprocessorbased 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. Technical Specifications 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)
Технические характеристики
Technical Specifications
| 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) |
