Luiz,
Found some more info on replenishing the Hydrogen in the Kvarz CH1-76 and
CH1-75.
Anders had the procedure pretty close for a fully charged canister from
the vendor.
However recharging the original is a bit more challenging!
Use care and protective gear from the high and low temperatures
Thank you for the experience / instruction!
Em ter, 9 de jul de 2019 12:05, escreveu:
> Luiz,
> Ch1-75 Hydrogen storage details.
> “The compound LaNi5H, is used for storing molecular hydrogen.
> The LaHi5H, is characterized by high hydrogen partial pressure (2 to 5
> atmospheres) at +(20-50)
Luiz,
Ch1-75 Hydrogen storage details.
The compound LaNi5H, is used for storing molecular hydrogen.
The LaHi5H, is characterized by high hydrogen partial pressure (2 to 5
atmospheres) at +(20-50) degrees C.
250 grams of the compound contains 18 liters of hydrogen at normal
pressure.
It is
The model of H Maser is KVARZ: CH1-75A.
Thank you for the replies friends! Soon here in the lab we will start to
discuss the maintenance.
Best regards
Luiz
Em sáb, 6 de jul de 2019 às 22:01, Jim Palfreyman
escreveu:
> Hi Luis,
>
> I have experience with the NASA NR series if that’s what you
Hi Luis,
I have experience with the NASA NR series if that’s what you have. Blue and
about the size of a household fridge, wth lovely 80s red LEDS on the front.
If it is this model, I’d expect it is more likely that your ion pump(s)
need replacing.
I can send all the documentation you need.
Luiz,
Once I know the model number of the Maser I can give some advice.
I recharged the Hydrogen bottle of the EFOS2 Maser 4 times in the past
with no problem.
Really depends on the method of Hydrogen storage and if they made
provision for field repair, I.E. threaded fittings vice welded
The H maser that we had at NASA-DSN in the 80´s had a small H2 bottle
which supplied it to the palladium valve, so it could be refilled. We
never needed a refill but once we had to open the plumbing, it was
necessary to reestablish the vacuum before opening the H2 valve. it was
done using a
Er du Norsk? Ole Petter Rønningen er et Norsk navn.
-Original Message-
From: Ole Petter Ronningen
Sent: Friday, July 05, 2019 10:04 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] It is possible to "recharge" a hydrogen maser?
Just change the
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
My experience is limited to the MHM-2010 at the Arecibo observatory, but I
suspect they all
handle the H2 supply in pretty much the same way.
Th hydrogen comes from a reservoir, in the case of the MHM-2010 from a small
"lecture" bottle of H2 under pressure. I assume that this is isotopically
Hi
Anything is possible. Working out exactly what happened and what needs to be
done
to fix it might be a bit involved. A maser is a pretty complicated piece of
gear.
The best bet is to dig out the manuals and go through the troubleshooting
process in
them. Plan for it taking a bit of time
Just change the bottle, or hydride cartridge, whichever it is. But it is
also very possible that the ion pumps are at the end of their lives, but
these can also be replaced "easily". What type if maser is it?
Ole
On Fri, Jul 5, 2019 at 7:01 PM Luiz Paulo Damaceno <
luizpauloeletric...@gmail.com>
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.
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