Ballasting procedure

Discussions about GC-MS, LC-MS, LC-FTIR, and other "coupled" analytical techniques.

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Dumb question - to gas ballast an Edwards rough pump can I simply open the ballast valve while the MS is pumped down? Or does the pump need to be isolated from the system?
https://www.manualslib.com/manual/12280 ... =34#manual

https://www.manualslib.com/manual/12280 ... =35#manual

Found this in the manual, looks like you can switch them with the pump running.
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2 posts Page 1 of 1

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