Used Varian Turbo-V 250 MacroTorr with controller unit and cable. The pump and controller were tested, and work. Unit tested as follows: 1 Connected a regular vacuum pump to the turbomolecular pump. Pumped air out of turbomolecular pump to get vacuum inside.. 2 Hooked up controller. Shorted interlock pins 3&8 on P1 connector per manual. 3 Shorted pins 1&6 to start pump. Monitored pump with stethoscope. 4 Verified by sound that pump ramped up to intermediate speed, then a minute or so later, ramped up to final speed. 5 Stopped turbomolecular pump. Allowed several minutes for pump to coast down. 6 Bled pressure to atmospheric. Removed regular vacuum pump. The item “Varian Turbo-V 250 MacroTorr 9699007 Turbomolecular Pump with Controller 9699425″ is in sale since Thursday, July 22, 2021. This item is in the category “Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Pumps & Pump Accessories\Vacuum Pumps\Turbomolecular Pumps”. The seller is “hopedkennedy” and is located in Houston, Texas. This item can be shipped to United States.
- Country/Region of Manufacture: Italy
- MPN: 9699357S012
- Brand: Varian