A pump cart and leak cart have been connected to the chamber via the top turbo at the back of the chamber. An air line has also been connected to the valve to open/close it. The pirani gaige has also been replaced by a blank flange, a gauge on the pump cart can measure the pressure in its range. The turbo fan and controller were set up and pumping was started after lunch. 

While pumping, the hot cathode gauge was connected to its controller and bakeable shell installed. Gauge will be turned on if pressure is sufficiently low tomorrow, currently no gauges are 'active' on the chamber with the only gauges on the pump cart. 

An RGA is attached to the pump cart and can be seen in attached photos. Majority of contribution in RGA is water with significant contributions from gases in air (nitrogen, oxygen etc) as expected during early pumping. RGA is also quite noisy. 

The leak rate observed is below the minimum value the leak cart can detect (<1e-12 mbar*l/s). Helium was sprayed around the chamber and on the wire seals, however no change in the leak rate was observed, so no significant leaks!

The turbo has been left to pump overnight with the pressure 2e-5 mbar at 16:15. Attached is the pressure against time from 15:00 till 16:15, the rate of pumping in this period was 0.68e-5 mbar/hour.