CS204-DMX-20B Specifications


Cooling Technology-
  DE-204 Closed Cycle Cryocooler
  Refrigeration Type Pneumatically Driven Gifford-McMahon Cycle
  Liquid Cryogen Usage None, Cryogen Free
Temperature*-
  DE-204AF < 10 K - 350 K
DMX-20 interface adds 1-2K to base temperature
  DE-204SF < 4.2 K - 350 K
DMX-20 interface adds 1-2K to base temperature
  DE-204PF < 5.5 K - 350 K
DMX-20 interface adds 1-2K to base temperature
  With 800 K Interface (Base Temp + 2 K) - 800 K
  With 450 K Interface (Base Temp + 2 K) - 450 K
  Stability 0.1 K
  *Based on bare cold head with a closed radiation shield, and no additional sources of experimental or parasitic heat load.
Sample space-
  Diameter Large
Open radiation shield
  Height Large
Open radiation shield
  Sample Holder Attachment 1/4-28 screw
  Sample Holder View our Sample Holder Collection
Optical Access-
  Window Ports N/A
  Diameter N/A
  Clear view N/A
  #/F N/A
  Window Material View our Wide Selection of Window Materials
Temperature Instrumentation and Control (Standard)-
  Heater 1 - 50 ohm Thermofoil Heater Anchored on Cold Tip
  Control Sensor 1 - Curve Matched Silicon Diode
  Sample Sensor 1 - Calibrated Silicon Diode
  Custom Instrumentation Contact ARS for available Options
Instrumentation Access-
  Instrumentation Skirt Welded Stainless steel
  Pump out Port 1 - NW-25
  Instrumentation Ports 2 - mini CF 1.33in
  Instrumentation Wiring Contact our sales staff for wiring options
Vacuum Shroud-
  Material N/A
  Length N/A
  Diameter N/A (at the sample space)
  Width N/A (at the sample space)
Radiation Shield-
  Material OFHC Copper
  Attachment Threaded
  Optical Access Open end
Radiation shield terminates 0.125" short of cold tip (customer specified)
Cryostat Footprint-
  Overall Length 590 mm (23.24 in)
295 mm (11.63 in) standard flange in tip length
  Motor Housing Diameter 114 mm (4.5 in)
  Rotational clearance 200 mm (8 in) with "G" configuration
Chamber Interface-
  Flanges CF, ISO
  Size 4.5", 6", 8", 10"
(4.5" CF flange non standard may not fit all chambers)
DMX-20 Sample Vibrations-
  Independent Mounting 3 - 5 nm
  Direct Soft Mount < 140 nm

DMX-20 Vibration Levels

DMX-20 Vibration Data Showing a 3-5 nm Vibration Peak at the Native 2.4Hz Frequency of the Cryocooler

Cryocooler Specifications

Cryocooler Model DE-204AE DE-204A(T)E DE-204PE DE-204SE
  Frequency 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz 50 Hz
    Base Temperature < 9 K < 9 K < 9 K < 9 K < 5.5 K < 5.5 K < 4 K < 4 K
    Cooling Capacity- 4.2 K - - - - - - 0.2 W 0.16 W
  10 K 2 W 1.6 W 2.7 W 2.2 W 3 W 2.4 W 4 W 3.2 W
  20 K 9 W 7.2 W 12 W 9.6 W 8 W 6.4 W 8 W 6.4 W
  77 K 17 W 14 W 23 W 18.4 W 14 W 11 W 14 W 11 W
    Radiation Shield Cooling Capacity 18 W 14 W 24 W 19 W 18 W 14 W 18 W 14 W
       (1st Stage Cooling Capacity at 77 K)                
    Maximum Cylinder Temperature 355 K 355 K 355 K 355 K
    Cooldown Time- 20K 30 min 36 min 25 min 30 min 40 min 48 min 40 min 48 min
  Base Temperature 60 min 72 min 50 min 60 min 90 min 96 min 90 min 108 min
    Weight Expander 7.7 kg (17 lbs) 7.7 kg (16 lbs) 7.7 kg (16 lbs) 7.1 kg (16 lbs)

ARS-4HW Compressor Specifications


Compressor Model ARS-4HW
  Frequency 60 Hz 50 Hz
Standard Voltage Min 208 V 190 V
  Max 230 V 210 V
Transformer Options 10%   220 V, 230 V
  15%   240 V
Power Usage Singe Phase 3.6 kW 3.0 kW
Refrigerant Gas 99.999% helium gas,
pre-charged
Noise Level 60 dBA
Ambient Temperature 12 - 40 C (54-104 F)
Cooling Water Consumption 1.5 L / min (0.4 Gal. / min)
  Temperature 10 - 35 C (50-95 F)
  Connection 3/8 in. Swagelok fitting
Dimensions L 483 mm (19 in)
  W 434 mm (17.1 in)
  H 516 mm (20.3 in)
Weight Compressor 72 kg (160 lbs)
Typical Maintenance Cycle 30,000 hours
Water Recirculation Option CoolPac compatible