[Aavso-photometry] Dessicant Alternatives for SBIG equipment

[Tim Crawford]

Particle Wave Technologies has a replacement set up
that uses disposable desiccant sleeves.... I prefer
this to the bake hassle and it avoids the need to have
two SBIG plugs in service.

I have been using mine for about four years now and a
most happy camper.  I think it was Aaron that
originally suggested this option to me.

SRP is a replacement plug for Santa Barbara
Instruments Group standard desiccant plug for ST-7, 8,
9, 10, 1001, 2000 (E, XE, XME) series cameras.

Unlike the standard SBIG desiccant plug, the cap of
SRP can be removed without any tools and the desiccant
inside replaced with a fresh pack. The type of
desiccant used is the same as used by SBIG - Molecular
Sieve. SRP holds 3 gram of molecular sieve which is
approximately one gram more than SBIG plug (3 gram
molecular sieve pack).

www.pwtec.com/srp.htm

Per Ardua ad Astra

Tim Crawford CTX
Arch Cape Observatory



--- bailyhill at aol.com wrote:

> 
>  Hello
> 
> I can tell you that the SBIG STL series of cameras
> also have a similar dessicant plug.? I have baked
> mine several times.
> 
> Clear Skies
> Gary
> 
> 
>  
> 
> 
>  
> 
> -----Original Message-----
> From: Jim Jones <nt7t at centurytel.net>
> To: aavso-photometry at mira.aavso.org
> Sent: Sun, 30 Dec 2007 12:55 am
> Subject: Re: [Aavso-photometry] CCD Cameras - Advice
> wanted!
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> You can purge the SBIG ST series cameras yourself. 
> You really don't 
> purge them, you dry the desiccant. Not a big deal.
> 
> You may be able to do the same thing with the other
> SBIG cameras 
> yourself but I'm not sure.
> 
> Jim Jones
> 
> Michael Crook wrote:
> > Hi Folks,
> >
> > Hope you all had a good Christmas!
> >
> > I've noticed a 'wierd' pattern on my recent CCD
> images
> > and on closer inspection I can see what appears to
> be
> > tiny droplets of water appearing on the actual
> chip -
> > which then freeze as the chip cools.
> >
> > I've been advised my camera  - a FLI Maxcam, will
> need
> > to be re-purged which will mean sending it back to
> the
> > manufacturer in the USA (I'm in the UK). This is
> going
> > to be expensive, and I've also been advised that I
> may
> > need to keep doing this every couple of years or
> so.
> >
> > My questions are - 
> >
> > 1) Is there anything I can do myself to prevent
> the
> > moisture forming?
> >
> > 2)Are there any cameras suitable for photometry
> which
> > don't have to be re-purged periodically? It may be
> > cheaper in the long-run for me to get a different
> > camera! The scopes I use are 6" and 9.25" SCTs at
> F6.3
> >
> > Many thanks,
> >
> > Mick Crook
> >   
> >
> >
> >   
> >
> >
> >      
>
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