[Sara-Reports] SARA KPNO Camera Status;

Oswalt, Terry D. oswaltt1 at erau.edu
Thu Aug 31 07:10:09 CDT 2017


Peter,

We approved the option of low-cost pump at the last Board meeting.  Please do work up the quote for us.

BTW, when will the cooler situation at SARA-CT be resolved?  (When will you be going there?)

Terry D. Oswalt, Ph.D.
Chair, Dept. Physical Sciences
Engineering Physics – Space  Physics – Astronomy & Astrophysics
Embry-Riddle Aeronautical University
600 Clyde Morris Boulevard
Daytona Beach, FL 32114
Office: (386) 226-7571
Fax: (386) 226-6621
Terry.Oswalt at erau.edu<mailto:Terry.Oswalt at erau.edu>
[cid:image001.png at 01D32230.8FC763A0]

From: <sara-reports-bounces at tamuc.edu> on behalf of "pmack at astronomical.com" <pmack at astronomical.com>
Organization: Astronomical Consultants
Date: Wednesday, August 30, 2017 at 3:25 PM
To: "sara-reports at tamuc.edu" <sara-reports at tamuc.edu>
Cc: "purchasing at astronomical.com" <purchasing at astronomical.com>
Subject: [Sara-Reports] SARA KPNO Camera Status;

Hi,

I tried to pump the camera down today but discovered that the vacuum pump (which we borrow from the Schmidt) is broken.

The pump has to have the correct fittings to match the camera.

It started out at 300 Torr and ended up at 760 Torr.  The ARC camera is OK.  I never even opened the valve.

The Schmidt has a spare pump but I see that they have it stripped down.
I have a pump on Mt. Lemmon but we cannot get it to KP before Friday as we are scheduled to use it on Mt. Lemmon tomorrow to start up the KASI ACE 1.0-m Telescope.

I have turned the cooler on to see if the camera will cool, but it is more than likely that it has a very soft vacuum.

You need your own pump.

There are two options.  I estimate an economy option for around $4k +/- 1k and a turbo pump for >10k.
I suspect you will want the economy version.  It gives a vacuum that last about 3 to 5 months.
That’s what we have at Mt. Lemmon.  The Schmidt has the turbo pump.

I can have ACE Purchasing give you a quote for an economy pump with gage and fittings.


-          Peter.



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