FMX-1AL Complete System Specifications

Cooling Technology

Refrigeration Type 

Pneumatically Driven Gifford-McMahon Cycle

Liquid Cryogen Usage 

None, Cryogen Free

Temperature*

DE-204AE

< 9 K - 350 K

DE-204SE

< 4 K - 350 K

DE-204PE 

 < 5.5 K - 350 K

With 800k Interface 

(Base Temp + 2 K) - 800 K

With 450k Interface 

(Base Temp + 2 K) - 450 K

Stability (All)

0.1k

*Based on bare cold head with a closed radiation shield, and no additional sources of experimental or parasitic heat load.

DE-204 Cryocooler Specifications

Model

DE-204AE

DE-204A(T)E

DE-204PE

DE-204SE

Frequency

60Hz | 50Hz 

60Hz | 50Hz 

60Hz | 50Hz 

60Hz | 50Hz 

Base Temperature 

<9k | <9K 

<9k | <9K 

<5.5k | <5.5K 

<4k | <4K 

Cooling Capcity 4.2k

 

 

 

0.2W | 0.16W 

10k

2W | 1.6W 

2.7W | 2.2W 

3W | 2.4W 

4W | 3.2W 

20k

9W | 7.2W 

12W | 9.6W

8W | 6.4W 

8W | 6.4W 

77k

17W | 14W 

23W | 18.4W 

14W | 11W 

14W | 11W 

Radiation Shield Cooling Capacity 
(1st Stage Cooling Capacity at 77 K)

18W | 14W 

24W | 19W 

18W | 14W 

18W | 14W 

Maximum Cylinder Temperature

355k

355k

355k

355k

Cool Down Time - 20k

 30min | 36min

25min | 30min

40min | 48min

 40min | 48min 

 Base Temperature 

60min | 72min

50min | 60min

90min| 96min

90min|108min

Weight - Expander

  7.7 kg (17 lbs)

 7.7 kg (17 lbs)

 7.7 kg (17 lbs)

  7.7 kg (17 lbs)

Sample Chamber and Instrumentation 

Sample Space 

  • Diameter : 36 mm (1.43 in)

  • Height : 39 mm (1.53 in)

  • Sample Holder Attachment : 1/4-28 screw

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Optical Access 

  • Window Ports : 4 - 90° Apart

  • Diameter : 41 mm (1.63 in)

  • Clear View : 32 mm (1.25 in)

  • #/F : 1

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Temperature Instrumentation and Control (Standard)

  • Heater : 1 - 50ohm Thermofoil Heater Anchored on Cold Tip

  • Control Sensor : 1 - Curve Matched Silicon Diode on Cold Tip

  • Sample Sensor : 1 - Calibrated Silicon Diode with free length wires.

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Instrumentation Access 

  • Instrumentation Skirt : Bolt-on, Aluminum

  • Pump Out Port : 1 - NW-25

  • Instrumentation Ports : 2

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Vacuum Shroud 

  • Material : Aluminum

  • Length : 338 mm (13.3 in)

  • Diameter : 80 mm (3.15 in) (at the sample space)

  • Witdth : 63.5 mm (2.5 in) (at the sample space)

Radiation Shield 

  • Material : Aluminum 

  • Attachment : Threaded 

  • Optical Access : 0, 2, or 4(customer specified)

Cryostat Footprint 

  • Overall Length : 576 mm (22.67 in)

  • Motor Housing Diameter : 114 mm (4.5 in)

ARS-4HW Compressor Specifications
   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