Beckman Coulter SX4400, Инструкция по эксплуатации

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B01198AB 1
SX4400 Swinging Bucket Rotor
Specifications
1.
Axis of Rotation
Maximum speed
Allegra X-30R 4700 rpm
Allegra X-30 4200 rpm
Density rating at maximum speed 1.2 g/mL
Critical speed range
a
800 to 1200 rpm
Relative Centrifugal Field
b
at maximum speed at
r
max
(172 mm)
Allegra X-30R 4255
´
g
Allegra X-30 3398
´
g
Conditions requiring speed reductions see
Run Speeds
Maximum allowable imbalance of opposing loads 10 grams
Number of buckets 4
Available labware
Table 1
Nominal tube capacity (largest tube) 400 mL
Nominal rotor capacity 1600 mL
Approximate acceleration time to maximum speed
(fully loaded) 36 sec
Approximate deceleration time from maximum speed
(fully loaded) 29 sec
Weight of fully loaded rotor 5.7 kg (12.6 lb)
Rotor and bucket material anodized aluminum
Bucket cover material polysulfone
a. The critical speed range is the range of speeds over which the rotor shifts so as to rotate about its center of mass. Passing through the critical
speed range is characterized by some vibration.
b. Relative Centrifugal Field (RCF) is the ratio of the centrifugal acceleration at a specified radius and speed (
rw
2
) to the standard acceleration of
gravity (
g
) according to the following formula: RCF = r
w2
/g — where
r
is the radius in millimeters,
w
is the angular velocity in radians per second
(2
p
RPM /60), and
g
is the standard acceleration of gravity (9807 mm/s
2
). After substitution: RCF = 1.12r (RPM/1000)
2
r
av
(101 mm)
r
max
(172 mm)
r
min
(71 mm)
1