Hi Luiz, We replaced H-source one Kvarz active HM during the summer of 2016. After 6-9 months of so of 'warm up' and settling down it is back up to maximum TAI weight. We got the new H-source bottle (size of a mini coke-can) and instructions from the manufacturer. >From what I recall the steps are roughly: - turn it off and turn it upside down - open up (HFO, mag-shield etc.) enough to have access to the H-bottle - disconnect the old bottle - cool down the new bottle in liquid nitrogen - connect new (cold) bottle with new seals (ethanol was used to prevent the new seals collecting water and freezing) - paint soap-bubble liquid on the pipes and look for leaks. let it warm up a day or two. - assemble, turn on, hope for the best :) - the bottle has a heater, which isn't needed in the beginning (6-9 months) when the H-pressure from the new source is high, so the heater can be off. Turn on the heater when the H-pressure monitor shows a reasonable value.
hope this story helps, it's definitely doable with support from the manufacturer and basic tools/skills found in your typical time lab. Anders On Fri, Jul 5, 2019 at 8:01 PM Luiz Paulo Damaceno < luizpauloeletric...@gmail.com> wrote: > Hi friends, > > We have a hydrogen maser here at the university that i work. It seems the > hydrogen is over. This is possible? If yes, It is possible to recharge It? > > Best regards, > > Luiz. > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.