Once they're at ambient, you shouldn't hurt things too much by shutting off the carrier. I'd go in and turn off the oven, inlet heater, and transfer line. I WOULD leave the quad heater on all the time. The same is true of the electron multiplier. The filament and ion optics are only "on" during a run-they don't get turned on until after you've started the run and the programmed solvent delay has passed, and then get shut off at the end of the run. This may be unorthodox, but I'd consider it fine to leave the MS pumped down and the quadrupoles warm with the He off. So any advice I could receive from the experts here is GREATLY appreciated! We want to teach our students the importance of GC-MS, but also do so in an economic fashion! I also know we would need to set the GC oven temperature to ambient while it is shutdown. So first, is it possible to leave the MS system under vacuum without the carrier gas on? I would guess this means turning the temperature down or off on the filament, which is fine if it is possible. I know it is preferred to keep the system on and pumped down and gas flowing, but we are working to save as much as money as possible, and since the instrument will sit idle for several months, it seems somewhat wasteful to keep it running. With money always tight, I was wondering if it would be okay to shut the system down while it is not being used to conserve He gas. Currently, this instrument will only be used for teaching purposes, meaning it will only be used a couple of times of year in our Instrumental Analysis course and not for very sensitive quantitative work. Anyways, we recently purchased and installed a refurbished Agilent 6890-5973 GC-MS system using He gas as our carrier. However, I am a chemistry professor at a small liberal-arts school which kind of makes me a jack of all trades and puts me in charge of our instrumentation (I have the most experience of the faculty here). #IF ITURN OFF CHEMSTATION WILL THE SOURCE COOL DOWN FULL#Reboot the system after applying all the settings.I am new to the forum and full disclosure not an expert at GC-MS systems. Apply the changes by selecting OK.Ĩ) Windows firewall and Automatic Updates must be turned OFF.ĩ) Apply all the computer settings as mentioned in the attached guide (How to configure Windows 7 for use with Agilent ChemStation Rev. In the General tab, disable Allow Indexing Service to index this disk for fast file searching. Hard disk Properties: (right- click Start > Explore, right- click on Local Disk(C:) > Properties).
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