Beckman Coulter JA-14.50, Инструкция по эксплуатации

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PN B32164AC
1
JA-14.50
Fixed-Angle Rotor
Specifications
NOTE
At 14,000 RPM and at an ambient temperature of 25°C or below, the minimum rotor temperature is
4°C. Above 38°C ambient, 4°C may not be achievable at 14,000 RPM.
1.
Axis of Rotation
Maximum speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14,000 RPM
Critical speed range
a
. . . . . . . . . . . . . . . . . . . . . . . . . . . .400 to 1000 RPM
Density rating at maximum speed. . . . . . . . . . . . . . . . . . . . . . . 1.2 g/mL
Relative Centrifugal Field
b
at maximum speed
at r
max
(160 mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35,000  g
at r
av
(124 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27,100  g
at
r
min
(87 mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19,100 
g
k factors at maximum speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 787
Conditions requiring speed reductions . . . . . . . . . . . . . see
Run Speeds
Number of tube cavities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Available tubes see
Table 1 , Table 2 , Table 3 and Table 4
Nominal dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30  115 mm
Nominal tube capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mL
Nominal rotor capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800 mL
Approximate acceleration time to maximum
speed (rotor fully loaded) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
½
min
Approximate deceleration time from maximum
speed (rotor fully loaded, max. break) . . . . . . . . . . . . . . . . . 2
½
min
Rotor weight, unloaded . . . . . . . . . . . . . . . . . . . . . . . 10.5 kg (23 lbs 3 oz.)
Rotor material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . aluminum
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 (
r

2
) to the standard acceleration of
gravity (
g
) according to the following formula: RCF =
r

2
/
g
— where
r
is the radius in millimeters,  is the angular velocity in radians per second
(2  RPM /60), and
g
is the standard acceleration of gravity (9807 mm/s
2
). After substitution: RCF = 1.12
r
(RPM/1000)
2