Preparing the Kelvinox Dilution and Gas Handling System

• pump the traps (heat out each for 30 min, but pump longer)
• pump out the condenser and pumping line, on the gas handling system and on the stick (all volumes might be connected)

After some hours (or one night)

• make the CAF seal (red silicon paste) with clean fingers
• put the tube, turning it a little on the seal and start pumping with the leak detector.
• leak check
• put the stick into the Variox or magnet VTI.
• insert about 50 mbar 4He into the IVC

• cool down the heat exchanger of the variox or magnet
• pump the IVC (5 min. with sorb temperature set to 40 K, then 1 h without sorb heater)

• if not yet done, take the special assembly to connect the pumping line and the condenser line with the stick
• pump out the adapter piece for 15 min