I remember hearing about a big cost saving in air / hydrogen when the 6890 came out.. There was no way to shut off the 5890 gc gaases at the end of a run. I think it was about 5000 a year if you shut off the air / h2 / makeup gas at the end of the run.
Is there some info on this? I think that if my coworkers can see a cost benifit they will be more likely to put an "off" method at the end of the run.
I just know it takes me about 15 min to change a tank. So ...