attoPUBLICATIONS attoCATALOG-2015/16 | Page 94

attoCRYO – Accessories PAGE 92 Accessories optional items for the attoCRYO product line Pumping kit for VTI This pumping kit comprises all necessary parts to operate the variable temperature insert (VTI) of any attoLIQUID2000, and thus to enable temperature control over a wide range of temperatures (1.8 .. 300 K) in conjunction with the heater and temperature sensor at the sample location, and an appropriate temperature controller. Included components and key features: rotary pump (pumping speed 22.5 m3/h, ultimate pressure 0.5 mbar), valve, overpressure valve, 5 m long PVC hose, 1 m long stainless steel hose, all necessary KF fittings. Article pumping kit for VTI No: 1006335 Pumping kit for Vacuum Tube This pumping kit comprises all necessary parts to prepare any of the attoMICROSCOPES for cooldown. This is usually done by evacuating the vacuum tube incl. the microscope to a low pressure (e.g. 10 -5 mbar or lower), and then adding about 0-50 mbar of helium exchange gas to the volume. This enables conveniently cooling and warming up of the microscope without condensation on neither the positioners/scanners nor on the sample. Included components and key features: turbomolecular pump incl. dry diaphragm backing pump (pumping speed for N2 3567 l/s, ultimate pressure 10 -7 mbar), full range pressure gauge, valve, overpressure valve, 1 m long stainless steel hose, needle valve and rubber bladder for dosing the exchange gas and all necessary KF fittings. Article pumping kit for vacuum tube No: 1006336