Beckman Coulter Optima L-90K

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Beckman Coulter Optima L-90K Centrifuge


Beckman Coulter Optima L-90K ultracentrifuge. (Picture taken by Saku Mattila.)

Name and Model (Year of Manufacture / Installation)

Beckman Coulter Optima L-90K (2007/2007)

General Information


Key Specifications

Approximate acceleration time: 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.

Approximate deceleration time: Select 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.

Noise Level 1 meter in front of centrifuge: 57 dBA

Set speed: Actual rotor speed ± 20 rpm of the set speed (above 1000 rpm)

Speed range: 1000 rpm to maximum speed

Set time: Up to 99 hr and 59 min; HOLD for runs of unspecified length.

Set temperature: 0 to 40°C in increments of 1°C

Temperature control: ± 0.5°C of set temperature; within 0.3°C of set after equilibration                          

Operating modes: Standard, programmed, or delayed start; instrument memory can store up to nine programs. Key switch selects NORMAL or ZONAL operation.

Vacuum: Diffusion pump in series with a mechanical pump typically reduces chamber pressure to below 0.7 Pa.

Key Features
  • Revolution counter displays accumulated total number of rotor revolutions in tens of thousands.
  • Barrier ring: 41 mm heat-treated steel alloy armor ring surrounded by a 12 mm steel vacuum chamber to provide full protection for the operator.
Location, Contact Person

Department of Biological and Environmental Science; Ambiotica, YAA210Petri Papponen