Products
10 Kelvin Closed Cycle Refrigerator Systems from Janis and SHI
Sumitomo (SHI) 10 K Refrigerator - CH-204 (6.7 Watt @ 20 K) & CH-204-N (2.5 Watt @ 10 K)
Overview
The model CH-204 systems provide 6.7 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). Upgrade to the model CH-204-N for 2.5 W @ 10 K at the second stage.
Standard Configuration
The model CH-204 systems provide 6.7 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). Upgrade to the model CH-204-N for 2.5 W @ 10 K at the second stage. Please see our Compressor page for more information.
Characteristics :
- Refrigeration Capacity: 6.7 W @ 20 K (CH-204) and 2.5 W @ 10 K (CH-204-N)
- Orientation Independent
- Push-button Operation
Click the link below for the CH-204/CH-204-N:
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Specifications
COLD HEAD MODEL CH-204
(Scroll down for CH-204-N)
| Refrigeration Cycle | Modified Gifford-McMahon |
Refrigeration Capacity
(Vertical Position) | 50 Hz | 1st stage: 13.5 W @ 80 K
2nd stage: 6.7 W @ 20 K |
| 60 Hz | 1st stage: 16.2 W @ 80 K
2nd stage: 8.1 W @ 20 K |
| Lowest Temperature 2nd Stage † | <10 K |
| Cooldown Time 2nd Stage † | 50 Hz: <35 Min.
60 Hz: <30 Min. |
| Coldhead | Ambient Temperature: 4-40 °C (40-104 °F)‡
Weight: 7.8 kg (17.2 lbs.)
Maintenance Interval: 13,000 Hours |
| Compressor | Model: HC-4E1
Weight: 75 kg (165 lbs.)
Maintenance Interval: 30,000 Hours |
| Electrical Power | 1 Phase
208/230 V, 60 Hz
200 V, 50/60 Hz
230/240 V, 50 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.
COLD HEAD MODEL CH-204-N
| Refrigeration Cycle | Modified Gifford-McMahon |
Refrigeration Capacity
(Vertical Position) | 50 Hz | 1st stage: N/A
2nd stage: 2.5 W @ 10 K |
| 60 Hz | 1st stage: N/A
2nd stage: 3.0 W @ 10 K |
| Lowest Temperature 2nd Stage † | <6.5 K |
| Cooldown Time 2nd Stage † | 50 Hz: <40 Min.
60 Hz: <35 Min. |
| Coldhead | Ambient Temperature: 4-40 °C (40-104 °F)‡
Weight: 7.8 kg (17.2 lbs.)
Maintenance Interval: 13,000 Hours |
| Compressor | Model: HC-4E1
Weight: 75 kg (165 lbs.)
Maintenance Interval: 30,000 Hours |
| Electrical Power | 1 Phase
208/230 V, 60 Hz
200 VC, 50/60 Hz
230/40 V, 50 Hz |
| Power Consumption (50/60 Hz) | 2.6/3.0 kW |
† 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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