Beckman L8-70M Ultracentrifuge, 1000-7000 RPM, Beckman Coulter (CAT#: STEM-LCPO-0102-LGZ)

The Beckman L8M is a microprocessor-controlled preparative ultracentrifuge used to generate centrifugal force to separate particles. The Beckman L8M ultracentrifuge can work with many ultracentrifuge rotors from the Beckman family, but types 15, 35 and 42.1

The Beckman L8M features an ultra-smooth variable frequency induction drive; dual program memory; dual-purpose digital display; numeric keypad with touch switches; program operation and 10 deceleration profiles.

Digital display showing vacuum level, rotor speed, rotor temperature, remaining run time or run time, cumulative centrifugal effect (ω2t). The actual operation of the instrument will be displayed unless the system is in input mode, or the display switch leaves display mode. In this example, the value selected for the run is displayed for 5 seconds.

A general feature of the Beckman L8-70M and L8M series is the touch switch operation with light finger pressure. When each switch is activated, a beep and a green LED indicator light signal. The LEDs also signal when the instrument reaches the setpoint during operation.

The Beckman L8-70M ultracentrifuge has 3 operating modes, manual, automatic and program-controlled. In manual mode, the L8-70M will run all individual run conditions specified by the user before starting the run. In automatic mode, runs can be repeated in sequence without having to re-enter any run parameters. In the programmed operation of the Beckman L8M, precise repeat operations can be performed at any time. Program operation uses Beckman L8M Series Memory-Pac™ memory modules.

Condition: certified pre-owned
Set Speed: 1000-7000 RPM (for L8-70M)
Speed Control: ± 20 rpm of set speed
Speed Display: Digital of rpm in increments of 100 rpm @1000 rpm and 10 rpm at speeds lower then 100 rpm
Rotor Temperature
Set Temperature: 0°C to +45°C
Maximum Temperature: programmable to 50°C
Temperature Control (after equilibrium): ± 1°C
Temperature Display: Digital read out accurate to ± 1°C
Time
Set Time: Up to 99 hrs 59 mins & HOLD for long run times.
Time Display: Time Remaining for timed runs, and time elapsed for runs in HOLD mode.
Computed Time: In ?2t mode, with speed and ?2t entered- computes value for equivalent time
?2t Integrator,
– Set ?2t: up to 9914 radians squared per second.
– ?2t Display: Indicated accumulated ?2t to 3 significant figures (exponential notation). Can be used to terminate run at preselected value.
– Computed ?2t: In time mode, with speed and time entered, the instrument compute a value for equivalent ?2t.
Acceleration: 9 Accel profiles or MAX Accel from 0 rpm to set speed.
Deceleration: 10 Decel profiles or MAX Decel from 0 rpm to set speed.
Operation: Manual, Automatic, Programmed; Key Interlock selects normal, zonal or locked operation
Dry Cycle: Used to dry out chamber

Microprocessor control (accuracy ±20 RPM)
Accurate indoor temperature control (0-45°C, ±1 degree accuracy)
Rotor unbalance and automatic maximum speed detection
10 acceleration/deceleration curves
Heavy Duty Refrigerated Induction Motors and Drives
70000 RPM and up to 500000 x g (depending on rotor)
Vacuum encapsulated induction drive chamber
Provides installation and training from our world-class Beckman training engineers
Includes full performance proof certificate

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