PAS 8000 (1973) 

  • 8k of memory
  • TPMA/PDP-11 interface combining the PAS pulse height analyser and a PDP-11 computer to calculate on line the characteristic values of DNA and DNA protein
  • one or two parameter histograms
  • PAM-202 single parameter pulse height analysing system with 200 channels of memory
  • PCP pulse coincidence processor, capable of eliminating coincident signals using only electronic means
  • PAE pulse amplifier extender for interfacing between an electronic or optical particle detector and a pulse height analyser
  • PDG conductometrical particle detector for particle measuring and counting

PAS 8000
DNA Histogram
EAT-cells

Technical Data

Flow Chamber

_ Speed: 2ml/min
_ Max. Cell Concentration: 30,000/ml

Optics

_ Light Source: 100W HBO UV Lamp
_ Köhler Illumination
_ Objective: Zeiss Neofluar 100/1.30
_ Photomultiplier: green-red sensitive

Electronics

_ PDP 11 Computer
_ High Voltage: 250 ... 1500 V
_ Amplification: x1; x2; x5; x10 with threshold
_ Multichannel Analyser:128 Channels
_ max. 99,999 Pulses per Channel
_ Line Printer
_ Power Supply: 220V, 50 Hz, 5 A
_ Controls: 1. Average cell count / time
                    2. Absolute cell count
                    3. Constant Light
                    4. Oscilloscope for Incoming Signals
                    5. Oscilloscope  for Memory Content
                    6. Dead Time Fraction
                    7. Lamp Voltage
                    8. Lamp Power

Dimensions

_ Desktop Unit:
   700 x 250 x 600 mm (LxWxH), Weight 20 kg
_ Electronics Unit:
   600 x 600 x 1500 mm (LxWxH), Weight 60kg