Helitran LT3 open cycle cryostat

Helitran LT3 Open Cycle Cryostat

Widely recognized as the standard in lab research circles, the LT3-110 cryostat's simplicity, adaptability, and precision allow research versatility over a wide range of applications(see table below): IR, UV, photoluminescence, X-ray diffraction, Hall effect, resisitivity, and narrow gap magnet studies.
Low heat leak transfer of liquid helium from the transfer line to the sample is controlled by the fine needle valve in the Helitran's cold tip. A heater - also in the cryostat cold tip - permits experiments to 300 K.

Helitran LT-3-110 Open Cycle Cryostat

FEATURES - LT-3-110 Cryostat

Operates with liquid helium in the 2K to 300 K range or liquid nitrogen in the 77 - 300 K range.
450K and 800K high temperature options available.
Vacuum shrouds rotatable 360 degs under vacuum.
Operates in any orinentation with no loss of performance.
Removable patented flexible line allows cold end interchangeability.
All sample area components are OFHC copper, brass or 304 non magnetic stainless steel.
Helium exhaust heater prevents frost from forming on vacuum shroud and reduces the possibility of cryogen burns.
Minimum maintenance requirements.
Quick and easy sample changing.
Liquid nitrogen use requires only change of cryogen; Helitran equipment stays the same.
Accepts WMX series of vacuum shrouds for many research interface requirements
Transfer line available in 6 ft (standard) and 8 ft or 10 ft sections

Cryostat Type	LT-3-110
Net Refrigeration:	0.75 W @ 4.2 K 3 W @ 20 K 7 W @ 50 K
Temperature Range:	2 to 350 Kelvin
Cooldown Time:	20-40 minutes from 300 K Cold Startup: 10-15 minutes
Cryogens:	Helium or Nitrogen
Total Consumption:	Typically 1.5 liters / hour at 4.2 K (tip and shield flow); lower at higher temperatures.
Supply Dewar Compatibility:	Standard for 42" dewar depth, 3/8" OD neck for direct coupling of line to dewar or 1/2" when dewar adapter sleeve is used. Other dewar bayonet lengths are available upon request.
Weight:	Transfer Line: 8 lb. (3.6 Kg) Cold End: 2 lb. (0.9 Kg)
Electrical Specifications:	Cold Tip Heater 36W, 36VDC Vent Gas Heater 100W, 115VAC
Materials:	Nonmagnetic SS304, OFHC copper, copper, brass, and soft and hard solders
High Flow line :	High refrigeration capacity and faster cool down (10 - 20 minutes ) 1.5 W @ 4.2 K 6W @ 20 K 14W @ 50 K

Cryostat Application	Vacuum Shroud/ Radiation Shield	Sample Holder
Optical, UV, Vis, IR, Resistivity, Standard Samples	WMX-1	optical / resistivity
Matrix Isolation	WMX-1A	optical
1 Axis X-Ray Diffraction	WMX-2	x-ray diffraction
Narrow Gap Magnet Studies	WMX-12	raman
EPR	WMX-15	copper/sapphire rod
Large Sample / Matrix Isolation	WMX-16A	large optical