5973 was running fine a week ago. Now it's giving "Tune Action Stopped: Gain and offset = 0 and peaks are too narrow!" error. Restored an old tune with no luck and also reconfigured system in ChemStation with no luck. Any leads to chase?
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5973 was running fine a week ago. Now it's giving "Tune Action Stopped: Gain and offset = 0 and peaks are too narrow!" error. Restored an old tune with no luck and also reconfigured system in ChemStation with no luck. Any leads to chase?
Always start with the easiest things first. Peaks are too narrow could be no peaks. Is there PFTBA in the vial? Can you feel it click when you start a tune? In Manual tune, Spectrum Scan, can you see that something happens when you turn on the filament? What about when you try filament 2? What is the vacuum reading? How long since the source was cleaned? The filament(s) changed? The pump oil changed? What about GC inlet and column maintenance? I had one like this a long time ago where the column had broken and the leak was so bad that there were no tune ion peaks to find in the tune.
I agree with Paulsalverda..
Thanks Paul. PFTBA vial full, valve audibly clicks and I swapped out to another valve just to be sure. Filaments may be suspect but visually look ok and show continuity with multi meter. Vacuum with column installed is 1x10-5. Source cleaned couple months ago but very little sample load. Pump oil only couple months old. I blanked the transfer line taking the GC out of the equation, still same error.
I'm really thinking side board or HED power supply problem.
HED Power supply - in Manual Tune, turn the HED off, then turn the EMV up - maybe two hundred volts higher. Can you see any peaks at all in Spectrum Scan, PFTBA on, Filament one on? Filament two on? Turn the AMU Gain and Offset to zero. Any peaks at all in the Spectrum Scan?
Hi MarkH
I don't think it's side board or HED power supply problem.
We faced same problem.
One time column was more out from transferline in MS.
2nd time, We cleaned source ( replaced repeller as it was very scratchy and replaced EM horn and problem was solved.