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Beckman Coulter J2-21

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J2-21

The Beckman J2-21 is a floor centrifuge well known to be a model workhorse. The J2-21 is easy to operate and offers you imbalance detection, indirect drive, and door interlock. This item does not include a rotor.  
Commons rotors: JA20 (8 x 50 ml); JA14 (6 x 250 ml); JA10 (6 x 500 ml); and JS13.1 (6 x 50 ml swinging).
J2-21
Attributes
Maximum Capacity 3 L
Speed Range 0 to 21000 rpm
Depth 37 in
Height 50 in
Width 28 in
Power Requirements 208V / 60Hz / 30A
Weight 300 kg
Additional Specifications
        
  • Speed accuracy RPM: 20,     
  • Maximum RCF, g: 50,400,     
  • Refrigerated: Yes,     
  • Refrigerant: R502,     
  • Operating temperature: -30 to +40C,     
   

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Beckman Coulter, Inc. is a leading manufacturer of biomedical testing instrument systems, tests and supplies that simplify and automate laboratory processes....

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Power turns on and off

When we turn on the power for the J2-21, the power seems to start and stop  - as if i was turning it on and off every second.  Any idea why this might happen?  

Calibrating the Beckman Coulter J2-21 Centrifuge Refrigeration ?

Hi Is there a procedure to Calibrate the Beckman Coulter J2-21, analog meter type of Centrifuge, not digital Refrigeration system. Reason is that the centrifuge is cooling approximatly 8 to 9 degrees past its set point. The Freon valve &...

Beckman J2-21m issue

I know I have an old unit but I service equipment for several labs and I get quite an array in type and age. I have serviced several J2-21 units but this is one I have an issue that has me perplexed. The motor does not run. The unit has another...

See all 31 Beckman Coulter J2-21 Questions and Answers There are 31 Threads

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