Eppendorf 5424 R Centrifuge - Manual (Page 11)

11
2 Product description
Centrifuge 5424 / 5424 R — Operating manual
2.4.1 Rcf display and calculation
To determine the g-force (rcf) for a specific adapter, you can calculate per DIN 58 970 using the
following formula:
rcf = 1.118 · 10
-5 · n 2 · r
max
n: revolutions per minute (rpm)
r
max
: max. centrifuging radius in cm
Example
In rotor FA-45-24-11, the 0.5 mL adapter has a maximum radius of 7.3 cm. At 7,000 rpm a
maximum g-force of 4,000 x g is reached.
Use the rpm/rcf key to switch the display of centrifugation speed between speed (rpm) and
g-force (rcf). Ensure that the g-force displayed upon switching is standardized to suit the rotor
FA-45-24-11 without an adapter. When other rotors and adapters are used, you can achieve the
following maximum g-forces (rcf) at the maximum speed (see p. 10):
Rotor Adapters Max. centrifugation
radius r
max
[cm]
Max. g-force (rcf)
(5424 120 V, 5424 R) Max. g-force (rcf)
(5424 230 V/100 V)
FA-45-24-11,
FA-45-24-11-Special without adapter 8.4 21,130 20,238
0.2 mL 6.3 15,848 15,179
0.4 mL 8.4 21,130 20,238
0.5 mL 7.3 18,363 17,558
0.6 mL 8.4 21,130 20,238
F-45-18-11-Kit without adapter 7.2 18,111 17,347
0.2 mL 5.1 12,829 12,288
0.4 mL 7.2 18,111 17,347
0.5 mL 6.1 15,345 14,697
0.6 mL 7.2 18,111 17,347
FA-45-32-5-PCR without adapter 7.4 18,615 17,829
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