Beckman Coulter LS6000



The Beckman LS 6000 Liquid Scintillation Counter is a high-performing system that offers flexibility of use. This model can freely function without an external computer. 
LS 6000 units are equipped with a 32,768 channel multichannel analyzer, delivering a resolution eight times more effective than the standard. Conventional liquid scintillation counters only produce 0.5 keV per channel as opposed to the 0.06 keV per channel from this model. This feature sets the basis for Defects Per Million (DPM) results without quench curves, a precise quench monitor, superior results for multi-label studies and automatic color detection and correction.
Depth 80 cm
Height 66 cm
Width 91.5 cm
Power Requirements 120 / 240V / BTU HR with 50/60 Hz
Weight 210 kg
Additional Specifications Efficiency:  
2H: >/= 60% in a wide window 
14C: >/= 95/5 in a wide window 
+/- 1% Counting Efficiency 
Maximum Count Rate  
Total Singles:  
26 x 10^6 CPM 
3H Window:  
10 x 10^6 CPM 
14C Window:  
13 x ^6 CPM 
Above 14 C Window :  
5 x ^6 CPM 
Power Requirements:  
120 / 240V / BTU HR with 50/60 Hz 
3A / 1.5A / 1230 
7.5A / 3.8A / 3060 
Inrush Current:  
5A at 120V, 2.5A at 240V 
Power Failure Recovery:  
Systems returns to a disrupted Automatic Count with fully charged battery 
Dimensions (W x H x D / Weight)  
91.5 x 66 x 80 cm / 210 kg 
33 x 34.3 x 35.6 cm / 8.2 kg 
39 x 10 x 30.5 cm / 5 kg 
Ambient Temperature Range:  
15 - 35'C 
Maximum Relative Humidity:  
Ambient Temperature Range:  
15'C to 30'C 
Maximum Pull Down Time:  
8 Hours 
Set Point 1:  
12'C +3'C 
Set Point 2:  
15'C +3'C 
Set Point 3:  
18'C +3'C 
2H: >/= 60% in a wide window 
14C: >/= 95/5 in a wide window


  • 32,768-Channel Multichannel Analyzer 
  • Advanced Photomultiplier Design 
  • Interlocking Lead Shielding 
  • Windowing User Interface 
  • User-Selectable Output Format 


LS 6000 Scintillation Counter

LS 6000 Scintillation Counter

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H# abort: count rate too low

Hello everyone, We have a Beckman LS6000 Scintilation Counter in our lab. Until recently it worked quite well, but now we get following error message: "invalid sample count: H# abort: count rate too low" even in positive...

Wyse terminal

Does this terminal need to be configured as was the earlier versions and if so does anyone know what the procedure would be.

No activity at power up

Hi folks.We have an LS6000 IC that isn't starting up correctly. When powered on, there is a hum/vibration in the unit itself, and the power light on the terminal comes on, but there is no motor movement, and the terminal display remains blank. I...

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