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- Posts: 349
- Joined: Mon Jul 30, 2018 11:58 pm
- Location: Louisville, KY
In any case, though, I have the instrument set up, pumped down, and currently have a blank ferrule on the transfer line. I think I'm running MS workstation v. 6.9.3 or something along those lines.
When I execute a pump-down command from the software(or just let the instrument decide to do it on its own) the turbo pump will start spinning. I can see it starting to spin before it spins so fast that the top blade can't be seen(top of pump can be seen through glass on top of instrument), I hear a high pitched whine and other characteristic noises of a starting turbo, and the software reports that the pump is "starting up." As it's spinning up over the course of ~3 minutes or so, I will see the pump power climb from a few watts to around 160W(a bit under, but close) before it reaches a steady speed and the power drops to ~10W.
In all of this, though, the software does not report a pump speed, and even after it has "settled down" the instrument is reporting the speed at 0%. Interestingly enough, right under that, Q2 temperature is listed at 68ºC, a value which never changes.
Since the software doesn't see the pump spinning, it also locks out doing things like checking ion gauges to see what the actual vacuum level in the chamber is. I SUSPECT it's in the ballpark of where it should be, but of course can't confirm that.
Has anyone seen this sort of issue before, and if so is there anything simple and obvious I can do to resolve it?