CS204-DMX-20 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 47 mm (1.87 in)
  Height 39 mm (1.53 in)
  Sample Holder Attachment 1/4-28 screw
  Sample Holder View our Sample Holder Collection
Optical Access-
  Window Ports 4 - 90° Apart
  Diameter 41 mm (1.63 in)
  Clear view 32 mm (1.25 in)
  #/F 1.4
  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 Bolt-on, Stainless Steel
  Pump out Port 1 - NW-25
  Instrumentation Ports 2
  Instrumentation Wiring Contact our sales staff for wiring options
Vacuum Shroud-
  Material Aluminum
  Length 388 mm (15.29 in)
  Diameter 86 mm (3.38 in) (at the sample space)
  Width 86 mm (3.38 in) (at the sample space)
Radiation Shield-
  Material OFHC Copper
  Attachment Threaded
  Optical Access 0, 2, or 4(customer specified)
Cryostat Footprint-
  Overall Length 645 mm (25.4 in)
  Motor Housing Diameter 114 mm (4.5 in)
  Rotational clearance 200 mm (8 in) with "G" configuration
DMX-20 Sample Vibrations-
  Independent Mounting 3 - 5 nm
  Direct Soft Mount < 140 nm

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