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| + !liquid Nitrogen |
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| + Most of our cryostats and cryo-magnets have an outer liquid nitrogen jacket to reduce the heat load on the helium bath. |
| + The storage dewars are prepared by the sample environment staff and can be picked up at the preparation area (between FOCUS and MARS). |
| + The dewars provided are self pressurizing systems with a mechanical level indicator at the top as shown below. |
| At line 5 added 9 lines. |
| + The dewars are always pressurized. |
| + *Ensure that the hose is firmly connected to the vessel and the nozzle is not pointing towards a person before opening the valve. |
| + The filling hoses have a metallic protection sleeve. The valves and the hose get very cold during a nitrogen transfer. |
| + *Make sure that you wear protective leather gloves when handling cold parts. |
| + |
| + When using the automatic nitrogen refill |
| + *test the automatic to assure that the filling hose remains in the cryostat filling port and that the system switches off correctly |
| + |
| + |
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