Certificate for the Specifications of Eppendorf Centrifuge 5810 R
Rotor: A-4-62
Tube: 4 x approx. 50 ml
Rotational speed: 4.000 rpm Tolerance: ± 100 rpm
Temperature (Refrigerated Model): 6 °C Tolerance: ± 2.0 °C
Run time: 5 min Tolerance: ± 2 s
Measurement Procedure:
Rotational speed measurement: Load the rotor with the specified tubes (tubes should be filled with
ethylene glycol).
Allow the centrifuge to accelerate to the specified rotational speed.
After five minutes, check the rotational speed.
Measuring instrument used: Stroboscope (accuracy:
≤ 1 %).
Time measurement: Set the run time to continuous operation. Wait for five seconds.
Start the centrifuge by pressing the Start key.
Measure the time which elapses until the display switches from 4 min
to 5 min.
Measuring instrument used: Stopwatch (accuracy: < = 0.1 s)
Temperature measurement
(Refrigerated centrifuges): Load the rotor with the specified tubes (tubes should be filled with
ethylene glycol).
Pre-cool the rotor to 6 °C using the Fast Cool function.
Centrifuge for 45 minutes at the specified rotational speed.
Brake the centrifuge using the maximum braking level.
Immediately after the centrifuge has come to a standstill, stir the
contents of the test tubes and measure the sample temperature in the
middle of the bucket (room temperature: 23 °C ± 2 °C)
Measuring instrument used: Temperature measure with thermo-
sensor, 0.5 mm diameter (accuracy: < = 0.5 °C).
We herewith certify that each centrifuge is tested according to the above procedures and meets the given
specifications.
Hamburg, 15.05.2001
Eppendorf AG
MSTM/KW/0705
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