Products
10 Kelvin Closed Cycle Refrigerator Systems from Janis and SHI
Sumitomo (SHI) 10 K Refrigerator - CH-202 (1.8 Watt @ 20 K)
Overview
These systems provide 1.8 Watts of cooling at a temperature of 20 K at the second stage (50 Hz) and can reach a minimum temperature of <10 K (with no parasitic or experimental heat loads).
Standard Configuration
Please note: Janis Research currently uses Model DE-202 cold heads. However, we are transitioning to the Model CH-202 coldhead. We expect the transition to be complete December 2010. Please contact Janis for details on the Model DE-202 coldheads. These systems provide 1.8 Watts of cooling at a temperature of 20 K at the second stage and can reach a minimum temperature of <10 K (with no parasitic or experimental heat loads). Please see our Compressor page for more information.
Characteristics:
- Refrigeration Capacity 1.8 W @ 20 K
- Orientation Independent
- Push-button Operation
Click the link below for the CH-202:
- Mechanical drawing (PDF) (This is a secured document and we were not able to rotated the pages. However, while viewing the document, you can right click on the page and select "rotate clockwise" for easy viewing.)
- Load Map (50 Hz & 60 Hz) (PDF)
Click here to contact Janis today!
Specifications
COLD HEAD MODEL CH-202
| Refrigeration Cycle | Modified Gifford-McMahon |
Refrigeration Capacity
(Vertical Position) | 50 Hz | 1st stage: 7.3 W @ 77 K
2nd stage: 1.8 W @ 20 K |
| 60 Hz | 1st stage: 8.8 W @ 77 K
2nd stage: 2.2 W @ 20 K |
| Lowest Temperature 2nd Stage † | <10 K |
| Cooldown Time 2nd Stage † | 50 Hz: <75 Min.
60 Hz: <65 Min. |
| Coldhead | Ambient Temperature: 4-40 °C (40-104 °F)‡
Weight: 6.8 kg (15 lbs.)
Maintenance Interval: 13,000 Hours |
| Compressor | Model: HC-4E1
Weight: 75 kg (165 lbs.)
Maintenance Interval: 30,000 Hours |
| Electrical Power | 1 Phase
200, 230/240 V, 50 Hz
208/230 V, 60 Hz |
| Power Consumption (50/60 Hz) | 2.6/3.0 kW |
| Flexline Length | 10' |
| Flexline Weight | ~4.5 lbs. per line |
† Lowest temperature, cooldown time are for reference. (Depending on ambient temperature, cooling water temperature, etc.)
‡ Cooling capacity may degrade by max. 5% if ambient temperature is above 28 °C.
Specifications subject to change without notice.
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