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SuperTran cryostat specifications

ST-100 Series cryostat specifications

	ST-100	ST-100-H
Cooling type	LHe
Temperature range	2 K to 500 K	2 K to 800 K
Temperature stability¹	±50 mK
Sample environment	Vacuum
Sample type	Conductive, solid
Cooldown	15 min (to 5 K)
Orientation²	Any
System weight (without transfer line)	~4.6 kg (10 lb)
Cryogen consumption (LHe room to base temp)	0.4 L
Cryogen consumption (LHe at 5 K)	0.6 L/h
Cryogen consumption (LN₂ at 80 K)	0.1 L/h
Initial vacuum level requirement³	~10^-3 Torr
Typical base pressure during operation	~10^-5 Torr

¹Measured with temperature controller
²Cryogen consumption may be higher during non-vertical operation
³Pressure measured at room temperature prior to adding cryogen

ST-300 Series cryostat specifications

	ST-300/ST-300-C
Cooling type	LHe
Temperature range	~2 K to 420 K
Temperature stability¹	±50 mK
Sample environment	Vacuum
Sample type	Conductive, solid
Cooldown	15 min (to 5 K)
Orientation²	Any
System weight (without transfer line)	~4.6 kg (10 lb)
Cryogen consumption (LHe room to base temp)	0.4 L
Cryogen consumption (LHe at 5 K)	0.6 L/h
Cryogen consumption (LN₂ at 80 K)	0.1 L/h
Initial vacuum level requirement³	~10^-3 Torr
Typical base pressure during operation	~10^-5 Torr

¹Measured with temperature controller
²Cryogen consumption may be higher during non-vertical operation
³Pressure measured at room temperature prior to adding cryogen

ST-400 Series cryostat specifications

	ST-400	ST-400-H
Cooling type	LHe
Temperature range	2 K to 500 K	2 K to 800 K
Temperature stability¹	±50 mK
Sample environment	Vacuum
Sample type	Conductive, solid
Cooldown	15 min (to 5 K)
Orientation²	Any
System weight (without transfer line)	~4.6 kg (10 lb)
Cryogen consumption (LHe room to base temp)	0.4 L
Cryogen consumption (LHe at 5 K)	0.6 L/h
Cryogen consumption (LN₂ at 80 K)	0.1 L/h
Initial vacuum level requirement³	~10^-3 Torr
Typical base pressure during operation	~10^-11 Torr

¹Measured with temperature controller
²Cryogen consumption may be higher during non-vertical operation
³Pressure measured at room temperature prior to adding cryogen

ST-500 Series cryostat specifications

	ST-500	ST-500-C	ST-500-LGV
Cooling type	LHe
Temperature range	3.5 K to 475 K	6 K to 475 K	3.5 K to 475 K
Temperature stability¹	±50 mK
Sample environment	Vacuum
Sample type	Conductive, solid
Cooldown	~30 min to 5 K	~30 min to 5 K	~30 min to 10 K
Orientation	Any
System weight (without transfer line)	~3.2 kg (7 lb)	~2.3 kg (5 lb)	Varies
Cryogen consumption (LHe room to base temp)	~1 L
Cryogen consumption (LHe at 5 K)	1.1 L/h	2.5 L/h (at 6 K)	1.1 L/h
Cryogen consumption (LHe at 10 K)	0.5 L/h	0.8 L/h	0.5 L/h
Cryogen consumption (LHe at 20 K)	0.2 L/h	0.4 L/h	0.2 L/h
Cryogen consumption (LN₂ at 80 K)	0.1 L/h
Initial vacuum level requirement²	~10^-4 Torr
Typical base pressure during operation	~10^-5 Torr
Nominal vibration amplitude³	<12 nm
Typical positional drift at 4 K (averaged over 2 h)	2 nm/min

¹Measured with temperature controller
²Pressure measured at room temperature prior to adding cryogen
³Measured with cryostat on a vibration isolation table